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                                                                                                    National Fire Code
                                                                                                    of Canada
                                                                                                    2020




                                                                                                    Issued by the
                                                                                                    Canadian Commission on Building and Fire Codes
                                                                                                    National Research Council of Canada
                                                                                                                       First Edition 1963




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                                                                                                                     Second Edition 1975
                                                                                                                       Third Edition 1977
                                                                                                                      Fourth Edition 1980
                                                                                                                       Fifth Edition 1985
                                                                                                                       Sixth Edition 1990
                                                                                                                     Seventh Edition 1995
                                                                                                                      Eighth Edition 2005
                                                                                                                      Ninth Edition 2010
                                                                                                                      Tenth Edition 2015
                                                                                                                     Eleventh Edition 2020



                                                                                                        Paper:   ISBN 978-0-660-37929-6      NR24-27/2020E
                                                                                                        PDF:     ISBN 978-0-660-37928-9      NR24-27/2020E-PDF



                                                                                                                    NRCC-CONST-56437E

                                                                                                          © National Research Council of Canada 2022
                                                                                                                            Ottawa
                                                                                                                     World Rights Reserved




                                                                                                                      Printed in Canada

                                                                                                                         First Printing




                                                                                                                 Aussi disponible en français :
                                                                                                    Code national de prévention des incendies – Canada 2020
                                                                                                                     NRCC-CONST-56437F
                                                                                                               Papier : ISBN 978-0-660-37931-9
                                                                                                               PDF : ISBN 978-0-660-37930-2
                                                                                                    Table of Contents

                                                                                                      Preface
                                                                                                      Relationship of the NFC to Standards Development and Conformity Assessment
                                                                                                      Canadian Commission on Building and Fire Codes and Standing Committees

                                                                                                      Division A           Compliance, Objectives and Functional Statements




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                                                                                                         Part 1               Compliance
                                                                                                         Part 2               Objectives
                                                                                                         Part 3               Functional Statements

                                                                                                      Division B           Acceptable Solutions
                                                                                                         Part 1               General
                                                                                                         Part 2               Building and Occupant Fire Safety
                                                                                                         Part 3               Indoor and Outdoor Storage
                                                                                                         Part 4               Flammable and Combustible Liquids
                                                                                                         Part 5               Hazardous Processes and Operations
                                                                                                         Part 6               Fire Protection Equipment
                                                                                                         Part 7               Fire Emergency Systems in High Buildings

                                                                                                      Division C           Administrative Provisions
                                                                                                         Part 1               General
                                                                                                         Part 2               Administrative Provisions

                                                                                                      Index




                                                                                                    National Fire Code of Canada 2020
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National Fire Code of Canada 2020
                                                                                                    Preface



                                                                                                        The National Fire Code of Canada 2020 (NFC), together with the National Building Code of




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                                                                                                        Canada 2020 (NBC), the National Energy Code of Canada for Buildings 2020 (NECB) and
                                                                                                        the National Plumbing Code of Canada 2020 (NPC), has been developed by the Canadian
                                                                                                        Commission on Building and Fire Codes (CCBFC) as an objective-based national model code
                                                                                                        that can be adopted by provincial and territorial governments.

                                                                                                        In Canada, provincial and territorial governments have the authority to enact legislation that
                                                                                                        regulates the following aspects of buildings and facilities within their jurisdictions:
                                                                                                           • activities related to the construction, use or demolition of buildings and facilities
                                                                                                           • the condition of specific elements of buildings and facilities
                                                                                                           • the design or construction of specific elements of facilities related to certain hazards
                                                                                                           • protection measures for the current or intended use of buildings

                                                                                                        This legislation may involve the adoption of the NFC without change or with modifications to
                                                                                                        suit local needs, and the enactment of other laws and regulations related to these aspects of
                                                                                                        buildings and facilities, including requirements for professional involvement.

                                                                                                        The NFC is a model code in the sense that it helps promote consistency among provincial and
                                                                                                        territorial fire codes. Persons involved in the operation of buildings or facilities should consult
                                                                                                        the provincial or territorial jurisdiction concerned to find out which fire code is applicable.

                                                                                                        This edition of the NFC succeeds the 2015 edition.


                                                                                                    Development of the National Model Codes
                                                                                                        The CCBFC, an independent committee established by the National Research Council of
                                                                                                        Canada (NRC), is responsible for the content of the National Model Codes. The CCBFC
                                                                                                        is made up of volunteers from across the country and from all facets of the Codes-user
                                                                                                        community. Members of the CCBFC and its standing committees include builders, engineers,
                                                                                                        skilled trade workers, architects, building owners, building operators, fire and building
                                                                                                        officials, manufacturers, and representatives of general interests.

                                                                                                        The CCBFC is advised on scope, policy and technical issues pertaining to the Codes by the
                                                                                                        Provincial/Territorial Policy Advisory Committee on Codes (PTPACC), which is a committee
                                                                                                        of senior representatives from provincial/territorial ministries responsible for building,
                                                                                                        fire, plumbing and energy regulation in their jurisdictions. The PTPACC was created by
                                                                                                        the provinces and territories, with provision of guidance to the CCBFC as one of its main
                                                                                                        functions. Through the PTPACC, the provinces and territories are engaged in every phase of
                                                                                                        the Codes development process.

                                                                                                        Codes Canada staff within the Construction Research Centre at the NRC provide technical
                                                                                                        and administrative support to the CCBFC and its standing committees, and coordinate the
                                                                                                        provision of evidence-based research to inform Codes development. The NRC publishes the
                                                                                                        National Model Codes and periodic revisions to the Codes to address pressing issues.

                                                                                                        The broader Codes-user community also makes significant contributions to the Codes
                                                                                                        development process by submitting requests for changes or additions to the Codes and by
                                                                                                        commenting on the proposed changes during the public reviews that precede each new
                                                                                                        edition.


                                                                                                    National Fire Code of Canada 2020                                                                         v
                                                                                                                                                                                                                             Preface

                                                                                                         The CCBFC takes into consideration the advice received from the provinces and territories as
                                                                                                         well as Codes users' comments at each stage of Codes development. The scope and content of
                                                                                                         the National Model Codes are determined on a consensus basis, which involves the review of
                                                                                                         technical, policy and practical concerns and discussion of the implications of these concerns.

                                                                                                         More information on the Codes development process is available on the NRC's website.


                                                                                                    National Fire Code of Canada 2020
                                                                                                         The NFC sets out technical provisions regulating the following:




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                                                                                                           • activities related to the construction, use or demolition of buildings and facilities
                                                                                                           • the condition of specific elements of buildings and facilities
                                                                                                           • the design or construction of specific elements of facilities related to certain hazards
                                                                                                           • protection measures for the current or intended use of buildings

                                                                                                         The NFC establishes requirements to address the following three objectives:
                                                                                                           • safety
                                                                                                           • health
                                                                                                           • fire protection of buildings and facilities

                                                                                                         Code provisions do not necessarily address all the characteristics of buildings and facilities
                                                                                                         that might be considered to have a bearing on the Code's objectives. Through the extensive
                                                                                                         consensus process used to develop and maintain the National Model Codes (see the section
                                                                                                         entitled Development of the National Model Codes), the Codes-user community has decided
                                                                                                         which characteristics should be regulated through the NFC.

                                                                                                         The provisions of the NFC can be considered as the minimum acceptable measures required
                                                                                                         to adequately achieve the above-listed objectives, as recommended by the CCBFC. Once they
                                                                                                         are adopted into law or regulation by an authority having jurisdiction, the provisions become
                                                                                                         minimum acceptable requirements representing the minimum level of performance required
                                                                                                         to achieve the objectives that is acceptable to the adopting authority.

                                                                                                         The NFC is a model code which, when adopted or adapted by a province or territory,
                                                                                                         becomes a regulation. It is not a guideline on the operation, maintenance, protection, design
                                                                                                         or construction of buildings and facilities. Executing these activities in a technically sound
                                                                                                         manner depends upon many factors beyond compliance with fire regulations. Such factors
                                                                                                         include the availability of knowledgeable practitioners who have received appropriate
                                                                                                         education, training and experience and who are familiar with the principles of good practice
                                                                                                         and experience using reference manuals and technical guides.

                                                                                                         The NFC does not list acceptable proprietary products. It establishes the criteria that materials,
                                                                                                         products and assemblies must meet. Some of these criteria are explicitly stated in the NFC
                                                                                                         while others are incorporated by reference to material or product standards published by
                                                                                                         standards development organizations. Only those portions of the standards related to the
                                                                                                         objectives of this Code are mandatory parts of the NFC.

                                                                                                         Relationship between the NBC and the NFC

                                                                                                              The NBC and NFC each contain provisions that relate to the safety of persons in buildings
                                                                                                              in the event of a fire and the protection of buildings from the effects of fire. (1) These two
                                                                                                              model codes are developed as complementary and coordinated documents to minimize
                                                                                                              the possibility of their containing conflicting provisions. It is expected that buildings
                                                                                                              comply with both the NBC and the NFC.

                                                                                                              The NBC covers the fire safety and fire protection features that are required to be
                                                                                                              incorporated in a building at the time of its original construction. Building codes typically

                                                                                                    (1) The NFC also applies to other types of facilities besides buildings (e.g. tank farms and storage
                                                                                                    yards). Those applications are not discussed here.


                                                                                                    vi                                                                                                     National Fire Code of Canada 2020
                                                                                                    Preface

                                                                                                             no longer apply once a building is occupied, unless the building is undergoing alteration
                                                                                                             or change of use, or being demolished.

                                                                                                             The NFC includes provisions for:
                                                                                                               • the on-going maintenance and use of the fire safety and fire protection features
                                                                                                                  incorporated in buildings
                                                                                                               • the conduct of activities that might cause fire hazards in and around buildings
                                                                                                               • limitations on hazardous contents in and around buildings
                                                                                                               • the establishment of fire safety plans
                                                                                                               • fire safety at construction and demolition sites




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                                                                                                             In addition, the NFC contains provisions regarding fire safety and fire protection features
                                                                                                             that must be added to existing buildings when certain hazardous activities or processes
                                                                                                             are introduced into these buildings.

                                                                                                             Some of the NFC's provisions are incorporated by reference in the NBC and, thus may
                                                                                                             apply to original construction, alterations, or changes in use.

                                                                                                        Code Requirements

                                                                                                             Most NFC requirements address at least one of the Code's three stated objectives (safety,
                                                                                                             health, and fire protection of buildings and facilities).

                                                                                                             In processing proposed changes or additions to any of the National Model Codes, the
                                                                                                             CCBFC considers many issues such as the following:
                                                                                                                • Does the proposed requirement provide the minimum level of performance—and
                                                                                                                  no more than the minimum—needed to achieve the Code's objectives?
                                                                                                                • Will persons responsible for Code compliance be able to act on or implement the
                                                                                                                  requirement using commonly accepted practices?
                                                                                                                • Will enforcement agencies be able to enforce the requirement?
                                                                                                                • Are the costs of implementing the requirement justifiable?
                                                                                                                • Have the potential policy implications of the requirement been identified and
                                                                                                                  addressed?
                                                                                                                • Is there broad consensus on this requirement among Code users as well as among
                                                                                                                  provincial and territorial governments?

                                                                                                             Guidelines for requesting changes to the NFC are available on the NRC's website.


                                                                                                    Objective-Based Code Format
                                                                                                        The NFC has been published in an objective-based code format since 2005.

                                                                                                        As described in more detail in the section entitled Structure of the NFC, the Code comprises
                                                                                                        three Divisions:
                                                                                                           • Division A, which defines the scope of the Code and contains the objectives, the
                                                                                                             functional statements and the conditions necessary to achieve compliance;
                                                                                                           • Division B, which contains acceptable solutions (commonly referred to as “technical
                                                                                                             requirements”) deemed to satisfy the objectives and functional statements listed in
                                                                                                             Division A; and
                                                                                                           • Division C, which contains administrative provisions.

                                                                                                        Most of the requirements in Division B are linked to three types of information:
                                                                                                         • objectives (Code objectives, such as safety or health, which individual requirements
                                                                                                             help to address),
                                                                                                         • functional statements (statements of the functions of the building or facility that a
                                                                                                             particular requirement helps to achieve), and
                                                                                                         • intent statements (detailed statements of the specific intent of the requirement).




                                                                                                    National Fire Code of Canada 2020                                                                      vii
                                                                                                                                                                                                              Preface

                                                                                                           Objectives
                                                                                                               The NFC's objectives are fully defined in Section 2.2. of Division A.

                                                                                                               The objectives describe, in broad terms, the overall goals that the NFC's requirements are
                                                                                                               intended to achieve. They serve to define the boundaries of the subject areas the Code
                                                                                                               addresses. However, the Code does not address all the issues that might be considered
                                                                                                               to fall within those boundaries.

                                                                                                               The objectives describe undesirable situations and their consequences, which the Code
                                                                                                               aims to prevent from occurring in buildings and facilities. The wording of most of
                                                                                                               the definitions of the objectives includes two key phrases: “limit the probability” and




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                                                                                                               “unacceptable risk.” The phrase “limit the probability” is used to acknowledge that the
                                                                                                               NFC cannot entirely prevent those undesirable situations from happening. The phrase
                                                                                                               “unacceptable risk” acknowledges that the NFC cannot eliminate all risk: the “acceptable
                                                                                                               risk” is the risk remaining once compliance with the Code has been achieved.

                                                                                                               The objectives are entirely qualitative and are not intended to be used on their own in
                                                                                                               determining compliance with the Code.

                                                                                                               The objectives attributed to the requirements or portions of requirements in Division B
                                                                                                               are listed in a table following the provisions in each Part of Division B.

                                                                                                           Functional Statements
                                                                                                               The NFC's functional statements are defined in Section 3.2. of Division A.

                                                                                                               The functional statements are more detailed than the objectives. They describe conditions
                                                                                                               in the building or facility that help satisfy the objectives. The functional statements and
                                                                                                               the objectives are interconnected. There may be several functional statements related
                                                                                                               to any one objective, and a given functional statement may describe a function of the
                                                                                                               building or facility that serves to achieve more than one objective.

                                                                                                               Like objectives, functional statements are entirely qualitative and are not intended to be
                                                                                                               used on their own in determining compliance with the Code.

                                                                                                               The functional statements attributed to the requirements or portions of requirements in
                                                                                                               Division B are listed in a table following the provisions in each Part of Division B.

                                                                                                           Intent Statements
                                                                                                               Intent statements explain the basic thinking behind each Code provision contained in
                                                                                                               Division B. Intent statements, each of which is unique to the provision with which it is
                                                                                                               associated, explain how requirements help to achieve their attributed objectives and
                                                                                                               functional statements. Like the objectives, the intent statements are expressed in terms
                                                                                                               of risk avoidance and expected performance. They offer insight into the views of the
                                                                                                               responsible standing committees on what the Code provisions are intended to achieve.

                                                                                                               The intent statements serve explanatory purposes only and do not form an integral part of
                                                                                                               the Code provisions. As such, they are similar in function to the explanatory Notes at the
                                                                                                               end of each Part. Due to the sheer volume of intent statements—thousands for the NFC
                                                                                                               alone—they are made available as a separate electronic document entitled “Supplement
                                                                                                               to the NFC 2020: Intent Statements,” which is posted on the NRC's website.

                                                                                                           All this additional information—objectives, functional statements and intent statements—is
                                                                                                           intended to facilitate the implementation of the Code in the following ways:
                                                                                                             • Clarity of intent: The objectives, functional statements and intent statements linked
                                                                                                               to a Code requirement clarify the reasoning behind that requirement and facilitate
                                                                                                               understanding of what must be done to satisfy that requirement. This added information
                                                                                                               may also help avoid disputes between practitioners and officials over these types
                                                                                                               of issues.


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                                                                                                    Preface

                                                                                                           • Flexibility: The additional information allows for flexibility in Code compliance. A
                                                                                                             person seeking to propose a new method or material not described or covered in the
                                                                                                             Code will be able to use the added information to understand the expected level of
                                                                                                             performance that their alternative solution must achieve to satisfy the Code.


                                                                                                    Structure of the NFC
                                                                                                        The NFC is organized into three Divisions.

                                                                                                        Division A: Compliance, Objectives and Functional Statements




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                                                                                                             Division A defines the scope of the NFC and presents the objectives that the Code
                                                                                                             addresses and the functions the building or facility must perform to help to satisfy those
                                                                                                             objectives.

                                                                                                             Division A cannot be used on its own as a basis for operating a building or facility, or for
                                                                                                             evaluating a building's or facility's compliance with the Code.

                                                                                                        Division B: Acceptable Solutions
                                                                                                             The term “acceptable solutions” refers to the technical requirements contained in the
                                                                                                             Code. It reflects the principle that fire codes establish an acceptable level of risk or
                                                                                                             performance and underlines the fact that a code cannot describe all possible valid Code
                                                                                                             compliance options. Acceptable solutions represent the minimum level of performance
                                                                                                             that will satisfy the NFC's objectives and that is acceptable to an authority that adopts
                                                                                                             the NFC into law or regulation.

                                                                                                             Most of the requirements in Division B—the acceptable solutions—are linked to at least
                                                                                                             one objective and functional statement found in Division A. These linkages play an
                                                                                                             important role in allowing objective-based codes to accommodate innovation.

                                                                                                             It is expected that the majority of Code users will primarily follow the acceptable
                                                                                                             solutions presented in Division B and that they will consult Division A only when seeking
                                                                                                             clarification on the application of Division B's requirements to a particular situation,
                                                                                                             when considering an alternative solution, or when looking up the definition of selected
                                                                                                             terms in the context of the NFC.

                                                                                                        Division C: Administrative Provisions
                                                                                                             Division C contains administrative provisions relating to the application of the Code.
                                                                                                             Many provinces and territories establish their own administrative provisions upon
                                                                                                             adopting or adapting the NFC; having all the administrative provisions in one Division
                                                                                                             facilitates their customization to suit jurisdictional needs.

                                                                                                        Relationship between Division A and Division B
                                                                                                             Sentence 1.2.1.1.(1) of Division A is a very important sentence: it is a precise statement of
                                                                                                             the relationship between Divisions A and B and is central to the concept of objective-based
                                                                                                             codes.
                                                                                                             1) Compliance with this Code shall be achieved by
                                                                                                             a) complying with the applicable acceptable solutions in Division B (see Note
                                                                                                                A-1.2.1.1.(1)(a)), or
                                                                                                             b) using alternative solutions that will achieve at least the minimum level of
                                                                                                                performance required by Division B in the areas defined by the objectives
                                                                                                                and functional statements attributed to the applicable acceptable solutions
                                                                                                                (see Note A-1.2.1.1.(1)(b)).

                                                                                                             Clause (a) makes it clear that the acceptable solutions in Division B are automatically
                                                                                                             deemed to satisfy the linked objectives and functional statements of Division A.


                                                                                                    National Fire Code of Canada 2020                                                                        ix
                                                                                                                                                                                                            Preface

                                                                                                           Clause (b) makes it clear that alternative solutions can be used in lieu of compliance
                                                                                                           with the acceptable solutions. However, to do something different from the acceptable
                                                                                                           solutions described in Division B, a proponent must show that their proposed alternative
                                                                                                           solution will perform at least as well as the acceptable solution(s) it is replacing. The
                                                                                                           objectives and functional statements attributed to the acceptable solution(s) identify the
                                                                                                           areas of performance where this equivalence must be demonstrated.


                                                                                                    Additional Information

                                                                                                        Numbering System




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                                                                                                           A consistent numbering system has been used throughout the National Model Codes. The
                                                                                                           first number indicates the Part of the Code; the second, the Section in the Part; the third,
                                                                                                           the Subsection; and the fourth, the Article in the Subsection. The detailed provisions are
                                                                                                           found at the Sentence level (indicated by numbers in brackets), and Sentences may be
                                                                                                           broken down into Clauses and Subclauses. This structure is illustrated as follows:

                                                                                                                    3                      Part
                                                                                                                    3.5.                   Section
                                                                                                                    3.5.2.                 Subsection
                                                                                                                    3.5.2.1.               Article
                                                                                                                    3.5.2.1.(2)            Sentence
                                                                                                                    3.5.2.1.(2)(a)         Clause
                                                                                                                    3.5.2.1.(2)(a)(i)      Subclause

                                                                                                        Meaning of the Words “And” and “Or” between the Clauses and Subclauses
                                                                                                        of a Sentence

                                                                                                           Multiple Clauses and Subclauses are connected by the word “and” or “or” at the end of
                                                                                                           the second last Clause or Subclause in the series. Although this connecting word appears
                                                                                                           only once, it is meant to apply to all the preceding Clauses or Subclauses within that series.

                                                                                                           For example, in a series of five Clauses—(a) to (e)—in a Sentence, the appearance of the
                                                                                                           word “and” at the end of Clause (d) means that all Clauses in the Sentence are connected
                                                                                                           to each other with the word “and.” Similarly, in a series of five Clauses—(a) to (e)—in a
                                                                                                           Sentence, the appearance of the word “or” at the end of Clause (d) means that all Clauses
                                                                                                           in the Sentence are connected to each other with the word “or.”

                                                                                                           In all cases, it is important to note that a Clause (and its Subclauses, if any) must always
                                                                                                           be read in conjunction with its introductory text appearing at the beginning of the
                                                                                                           Sentence. Moreover, the connecting words “and” and “or” must be read in the context
                                                                                                           of the Sentence. In particular, the use of the word “and” as a connecting word does not
                                                                                                           necessarily mean that all Clauses (or Subclauses) are applicable for compliance with
                                                                                                           the Sentence.

                                                                                                        Change Indication

                                                                                                           As a courtesy to Code users, efforts have been made to identify technical changes relative
                                                                                                           to the 2015 edition. Where a technical addition or revision has been made, a vertical line
                                                                                                           has been added in the margin next to the affected provision to indicate the approximate
                                                                                                           location of the new or revised content. No change indication is provided for editorial
                                                                                                           revisions or for renumbered or deleted content.

                                                                                                        Units

                                                                                                           All values in the NFC are given in metric units. Some of the metric values in the Code
                                                                                                           have been converted and rounded from imperial values. A conversion table of imperial


                                                                                                    x                                                                                   National Fire Code of Canada 2020
                                                                                                    Preface

                                                                                                             equivalents for the most common units used in the operation of buildings and facilities is
                                                                                                             located at the end of the Code.

                                                                                                        Complementary Publications

                                                                                                             The following publications are referenced in the NFC 2020 or facilitate the application
                                                                                                             of its requirements:
                                                                                                                National Building Code of Canada 2020
                                                                                                                Supplement to the NFC 2020: Intent Statements
                                                                                                                User's Guide – NBC 1995, Fire Protection, Occupant Safety and Accessibility (Part 3)




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                                                                                                             These and other Code documents published by the NRC are made available in free
                                                                                                             electronic format on the NRC's website.


                                                                                                    Commercial Reproduction
                                                                                                        Copyright for the NFC is owned by the NRC. All rights are reserved. Commercial
                                                                                                        reproduction by any means of the NRC's copyright material is prohibited without the written
                                                                                                        consent of the NRC. To request permission to reproduce the NFC, please contact:
                                                                                                           Production and Marketing Manager
                                                                                                           Codes Canada
                                                                                                           National Research Council of Canada
                                                                                                           1200 Montreal Road
                                                                                                           Ottawa, Ontario K1A 0R6
                                                                                                           E-mail: Codes@nrc-cnrc.gc.ca


                                                                                                    Contact Information
                                                                                                        The CCBFC welcomes comments and suggestions for improvements to the NFC. Persons
                                                                                                        interested in requesting a change to an NFC provision should refer to the guidelines available
                                                                                                        on the NRC's website.

                                                                                                        To submit comments or suggestions, please contact:
                                                                                                          The Secretary
                                                                                                          Canadian Commission on Building and Fire Codes
                                                                                                          1200 Montreal Road
                                                                                                          Ottawa, Ontario K1A 0R6
                                                                                                          E-mail: CCBFCSecretary-SecretaireCCCBPI@nrc-cnrc.gc.ca




                                                                                                    National Fire Code of Canada 2020                                                                     xi
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xii




National Fire Code of Canada 2020
                                                                                                    Relationship of the NFC to Standards
                                                                                                    Development and Conformity
                                                                                                    Assessment
                                                                                                        The development of many provisions in the NFC and the assessment of conformity to those




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                                                                                                        provisions are supported by several of the member organizations of Canada's National
                                                                                                        Standards System (NSS).

                                                                                                        The NSS is a network of accredited organizations concerned with standards development,
                                                                                                        certification, testing and inspection that is established under the auspices of the Standards
                                                                                                        Council of Canada Act. Activities of the NSS are coordinated by the Standards Council of
                                                                                                        Canada (SCC), which accredits standards development organizations, certification bodies,
                                                                                                        testing and calibration laboratories, and inspection bodies, among others.

                                                                                                        The SCC is a non-profit federal Crown corporation responsible for the coordination of
                                                                                                        voluntary standardization in Canada. It also coordinates Canadian participation in voluntary
                                                                                                        international standardization activities.


                                                                                                    Canadian Standards
                                                                                                        Many of the standards referenced in the NFC are published by standards development
                                                                                                        organizations accredited in Canada. As part of the accreditation requirements, these
                                                                                                        organizations adhere to the principle of consensus, which generally means substantial
                                                                                                        majority agreement of a committee comprising a balance of producer, user and general
                                                                                                        interest members, and the consideration of all negative comments. The standards
                                                                                                        development organizations also have formal procedures for the balloting and second-level
                                                                                                        review of standards prepared under their oversight.

                                                                                                        The following organizations are accredited as standards development organizations in
                                                                                                        Canada:
                                                                                                          • Air-Conditioning, Heating and Refrigeration Institute (AHRI)
                                                                                                          • ASTM International
                                                                                                          • Bureau de normalisation du Québec (BNQ)
                                                                                                          • Canadian General Standards Board (CGSB)
                                                                                                          • CSA Group
                                                                                                          • International Association of Plumbing and Mechanical Officials (IAPMO)
                                                                                                          • ULC Standards
                                                                                                          • Underwriters' Laboratories Inc. (UL)

                                                                                                        Table 1.3.1.2. of Division B lists the standards referenced in the NFC. Standards proposed to
                                                                                                        be referenced in the NFC are reviewed to ensure that their content is compatible with the
                                                                                                        Code. Thereafter, referenced standards are reviewed as needed during each Code cycle.
                                                                                                        Standards development organizations are asked to provide information on any changes in the
                                                                                                        status of their standards referenced in the NFC—withdrawals, amendments, new editions,
                                                                                                        etc. This information is passed on to the CCBFC, its standing committees, the provinces and
                                                                                                        territories, and interested stakeholders, all of whom are given the opportunity to identify
                                                                                                        any problems associated with the changes. These bodies do not necessarily review in detail
                                                                                                        the revised standards; rather, the approach relies on the consensus process involved in the
                                                                                                        maintenance of the standards and on the extensive knowledge and experience of committee
                                                                                                        members, provincial or territorial staff, NRC staff, and consulted stakeholders to identify
                                                                                                        changes in the standards that might create problems in the Code.




                                                                                                    National Fire Code of Canada 2020                                                                   xiii
                                                                                                                                                                                                             Preface

                                                                                                    Non-Canadian Standards
                                                                                                          A number of subject areas for which the standards development organizations accredited in
                                                                                                          Canada have not developed standards are covered in the NFC. In these cases, the Code often
                                                                                                          references standards developed by organizations in other countries, such as the American
                                                                                                          Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) and the
                                                                                                          National Fire Protection Association (NFPA). These standards are developed using processes
                                                                                                          that may differ from those used by the standards development organizations accredited in
                                                                                                          Canada; nevertheless, the standards have been reviewed by the relevant standing committees
                                                                                                          and found to be acceptable.




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                                                                                                    Conformity Assessment
                                                                                                          The NFC establishes minimum measures, which are set out within its own text or within
                                                                                                          referenced standards. However, the NFC does not set out who is responsible for assessing
                                                                                                          conformity to the measures or how those with this responsibility might carry it out. This
                                                                                                          responsibility is usually established by the governing legislation of the adopting provinces
                                                                                                          and territories. Provincial or territorial authorities should be consulted to determine who is
                                                                                                          responsible for conformity assessment within their jurisdiction.

                                                                                                          Those persons responsible for ensuring that materials, appliances, systems and equipment
                                                                                                          meet the requirements of this Code have several means available to assist them, ranging
                                                                                                          from on-site inspection to the use of certification services provided by accredited third-party
                                                                                                          organizations. Test reports or mill certificates provided by manufacturers or suppliers can
                                                                                                          also assist in the acceptance of products. Engineering reports may be required for more
                                                                                                          complex products.

                                                                                                          Testing
                                                                                                              The SCC accredits testing and calibration laboratories that are capable of reliably testing
                                                                                                              products to specified standards. The test results produced by these organizations can be
                                                                                                              used in the certification, evaluation and qualification of products for compliance with
                                                                                                              Code provisions. The SCC's website (www.scc.ca) lists accredited testing and calibration
                                                                                                              laboratories, along with their scope of accreditation.

                                                                                                          Certification
                                                                                                              Certification is the confirmation by an independent organization that a product, process,
                                                                                                              service or system meets a requirement. Certification may entail physical examination,
                                                                                                              testing as specified in appropriate standards, an initial plant inspection, and/or follow-up
                                                                                                              unannounced plant inspections. This procedure leads to the issuing of a formal assurance
                                                                                                              or declaration, by means of a certification mark or certificate, that the product, process,
                                                                                                              service or system is in full conformity with specified provisions.

                                                                                                              In some cases, a product for which no standard exists can be certified using procedures
                                                                                                              and criteria developed by an accredited certification body and specifically designed to
                                                                                                              measure the performance of that product.

                                                                                                              Certification bodies publish lists of certified products and companies. The SCC's website
                                                                                                              (www.scc.ca) lists accredited certification bodies, along with their scope of accreditation.
                                                                                                              Several organizations including the Canadian Construction Materials Centre (CCMC) at
                                                                                                              the NRC offer product certification services.

                                                                                                          Evaluation
                                                                                                              An evaluation is a written opinion by an independent professional organization that a
                                                                                                              product will perform its intended function. An evaluation is often done to determine the
                                                                                                              ability of an innovative product, for which no standards exist, to satisfy the intent of a
                                                                                                              Code requirement. Follow-up plant inspections are not normally part of the evaluation
                                                                                                              process.


                                                                                                    xiv                                                                                    National Fire Code of Canada 2020
                                                                                                    Preface

                                                                                                        Qualification

                                                                                                             Qualification evaluates the ability of a product to perform its intended function by
                                                                                                             verifying that it meets the requirements of a standard. Qualification normally includes
                                                                                                             some follow-up plant inspection. Some organizations publish lists of qualified products
                                                                                                             that meet the specified requirements. Some organizations qualify product manufacturing
                                                                                                             and/or testing facilities for compliance with the Code and relevant standards.




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                                                                                                    National Fire Code of Canada 2020                                                                  xv
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xvi




National Fire Code of Canada 2020
                                                                                                    Canadian Commission on Building and
                                                                                                    Fire Codes and Standing Committees

                                                                                                                         Canadian Commission on Building and Fire Codes




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                                                                                                     D. Crawford (Chair)            C. Gray                 T. Ross                    Codes Canada staff
                                                                                                     R. Arsenault                   H. Griffin              R. Rymell                  who provided assistance
                                                                                                     K. Block                       K. Griffiths            B. Sim                     to the Commission
                                                                                                     A. Borooah                     T. Harper               S. Stinson                 M. Dumoulin
                                                                                                     R. Brooks                      L. Holmen               D. Sullivan                G. Gosselin
                                                                                                     J. Chauvin                     C. Joseph (1)           A. Tabet                   A. Gribbon
                                                                                                     M. Cianchetti                  K. Lee                  P. Thorkelsson             P. Jago
                                                                                                     T. Cochren                     B. Lorne                M. Tovey                   A. Laroche
                                                                                                     V. de Passillé                 D. MacKinnon            C. Tye                     F. Lohmann
                                                                                                     R. Dulmage                     M. McSweeney            E. Whalen                  P. Rizcallah
                                                                                                     C. Fillingham                  G. Morinville           G. Yoshida                 R. Tremblay
                                                                                                     S. Garcia                      S. Ottens
                                                                                                     K. Gloge                       R. Richard




                                                                                                          Standing Committee on Fire                         Standing Committee on Hazardous
                                                                                                                  Protection                                      Materials and Activities
                                                                                                     R. Brown (Chair)             R. Nielsen                 A. MacLellan-Bonnell (Chair)
                                                                                                     K. Bailey                    A. Pelletier               P. Chamberland           J. Selann
                                                                                                     M. Bodnar                    B. Schultz                 R. Croome                R. Stephenson
                                                                                                     C. Campbell                  P. Shinkoda                D. Edgecombe             B. Trussler
                                                                                                     R. Cheung                    E. Sopeju                  T. Espejo
                                                                                                     A. Crimi                     J. Zorko                   G. Fawcett               Codes Canada staff
                                                                                                     G. Frater                                               E. Fernandes             who provided assistance
                                                                                                                                                                                      to the Committee
                                                                                                     P. Gautreau                  Codes Canada staff         M. Gagné
                                                                                                     L. Hamre                     who provided assistance    P. Gauthier              D. Esposito
                                                                                                     A. Harmsworth                to the Committee           K. Jess                  M. Fortin
                                                                                                     R. Jacobs                    D. Esposito                M. Mailvaganam           S. Hyde-Clarke
                                                                                                     F. Jeffers                   M. Fortin                  M. Ng                    A. Laroche
                                                                                                     J. Jeske                     S. Hyde-Clarke             P. Parent                G.-L. Porcari
                                                                                                     N. Khan                      A. Laroche                 M. Parker                B. Potvin
                                                                                                     M. Kohli                     G.-L. Porcari              S. Porter                A. Robbins
                                                                                                     M.-A. Langevin               B. Potvin                  P. Richards              S. Shalabi
                                                                                                     H. Locke                     A. Robbins                 W. Rodger                S. Yu
                                                                                                     R. McGrath                   S. Shalabi
                                                                                                     R. McPhee                    S. Yu




                                                                                                    National Fire Code of Canada 2020                                                                            xvii
                                                                                                                                                                                Preface

                                                                                                          Standing Committee on Use and
                                                                                                                     Egress
                                                                                                     E. Domingo (Chair)           R. Strickland
                                                                                                     S. Bourdeau                  R. Thompson
                                                                                                     K. Calder                    B. Topping
                                                                                                     A. Cavers
                                                                                                     S. Destroismaisons           Codes Canada staff
                                                                                                     B. Dupuis                    who provided assistance
                                                                                                     E. Esselink                  to the Committee
                                                                                                     B. Everton                   M. Fortin




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                                                                                                     R. Fraser                    S. Hyde-Clarke
                                                                                                     W. Johnston                  C. Joseph
                                                                                                     W. Kuffner                   G.-L. Porcari
                                                                                                     I. MacDonald                 B. Potvin
                                                                                                     J. Redmond                   A. Robbins
                                                                                                     J. Rubes                     S. Yu
                                                                                                     U. Seward




                                                                                                      Technical Translation Verification
                                                                                                                 Committee
                                                                                                     G. Harvey (Chair)            Codes Canada staff
                                                                                                     F. Genest                    who provided assistance
                                                                                                     B. Lagueux                   to the Committee
                                                                                                     N. Lessard                   I. Bastien
                                                                                                     I. Wagner                    M. Gingras
                                                                                                                                  K. Le Van
                                                                                                                                  G. Mougeot-Lemay
                                                                                                                                  S. Veilleux

                                                                                                    (1)   Resigned on September 23, 2016, due to employment
                                                                                                          opportunity with Codes Canada.




                                                                                                    xviii                                                     National Fire Code of Canada 2020
Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays




                                                             Compliance, Objectives and


                                                                                          Division A



                                                               Functional Statements
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                                                                                                    Division A



                                                                                                    Part 1
                                                                                                    Compliance




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                                                                                                      1.1.          General
                                                                                                      1.1.1.        Application of this Code .................. 1-1

                                                                                                      1.2.          Compliance
                                                                                                      1.2.1.        Compliance with this Code ............. 1-1

                                                                                                      1.3.          Divisions A, B and C of
                                                                                                                    this Code
                                                                                                      1.3.1.        General .............................................. 1-1
                                                                                                      1.3.2.        Application of Division A ................. 1-2
                                                                                                      1.3.3.        Application of Division B ................. 1-2
                                                                                                      1.3.4.        Application of Division C ................. 1-2

                                                                                                      1.4.          Terms and Abbreviations
                                                                                                      1.4.1.        Definitions of Words and Phrases .. 1-2
                                                                                                      1.4.2.        Symbols and Other Abbreviations .. 1-8

                                                                                                      1.5.          Referenced Documents
                                                                                                                    and Organizations
                                                                                                      1.5.1.        Referenced Documents ................... 1-8
                                                                                                      1.5.2.        Organizations ................................... 1-9

                                                                                                                    Notes to Part 1 ................ 1-11




                                                                                                    National Fire Code of Canada 2020
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National Fire Code of Canada 2020
                                                                                                    Division A



                                                                                                    Part 1
                                                                                                    Compliance




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                                                                                                    Section 1.1. General
                                                                                                    1.1.1.            Application of this Code
                                                                                                    1.1.1.1.          Application of this Code
                                                                                                                         1) This Code applies to all new and existing buildings and facilities, and to building
                                                                                                                      construction, renovation or demolition sites. (See Note A-1.1.1.1.(1).)


                                                                                                    Section 1.2. Compliance
                                                                                                    1.2.1.            Compliance with this Code
                                                                                                    1.2.1.1.          Compliance with this Code
                                                                                                                         1) Compliance with this Code shall be achieved by
                                                                                                                         a) complying with the applicable acceptable solutions in Division B (see
                                                                                                                            Note A-1.2.1.1.(1)(a)), or
                                                                                                                         b) using alternative solutions that will achieve at least the minimum level of
                                                                                                                            performance required by Division B in the areas defined by the objectives
                                                                                                                            and functional statements attributed to the applicable acceptable solutions
                                                                                                                            (see Note A-1.2.1.1.(1)(b)).
                                                                                                                         2) For the purposes of compliance with this Code as required in
                                                                                                                      Clause 1.2.1.1.(1)(b), the objectives and functional statements attributed to the
                                                                                                                      acceptable solutions in Division B shall be the objectives and functional statements
                                                                                                                      referred to in Subsection 1.1.2. of Division B.


                                                                                                    Section 1.3. Divisions A, B and C of this Code
                                                                                                    1.3.1.            General
                                                                                                    1.3.1.1.          Scope of Division A
                                                                                                                        1) Division A contains the compliance and application provisions, objectives
                                                                                                                      and functional statements of this Code.

                                                                                                    1.3.1.2.          Scope of Division B
                                                                                                                         1) Division B contains the acceptable solutions of this Code.

                                                                                                    1.3.1.3.          Scope of Division C
                                                                                                                         1) Division C contains the administrative provisions of this Code.


                                                                                                    National Fire Code of Canada 2020                                                                     Division A 1-1
                                                                                                    1.3.1.4.                                                                                            Division A

                                                                                                    1.3.1.4.         Internal Cross-references
                                                                                                                       1) Where the Division of a referenced provision is not specified in this Code, it shall
                                                                                                                     mean that the referenced provision is in the same Division as the referencing provision.

                                                                                                    1.3.2.           Application of Division A
                                                                                                    1.3.2.1.         Application of Parts 1, 2 and 3
                                                                                                                        1) Parts 1, 2 and 3 of Division A apply to all buildings and facilities covered in
                                                                                                                     this Code. (See Article 1.1.1.1.)




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                                                                                                    1.3.3.           Application of Division B
                                                                                                    1.3.3.1.         Application of Parts 1 to 6
                                                                                                                       1) Parts 1 to 6 of Division B apply to all buildings and facilities covered in this
                                                                                                                     Code. (See Article 1.1.1.1.)

                                                                                                    1.3.3.2.         Application of Part 7
                                                                                                                       1) Part 7 of Division B applies to high buildings as defined in the National Building
                                                                                                                     Code of Canada 2020.

                                                                                                    1.3.4.           Application of Division C
                                                                                                    1.3.4.1.         Application of Parts 1 and 2
                                                                                                                       1) Parts 1 and 2 of Division C apply to all buildings and facilities covered in this
                                                                                                                     Code. (See Article 1.1.1.1.)


                                                                                                    Section 1.4. Terms and Abbreviations
                                                                                                    1.4.1.           Definitions of Words and Phrases
                                                                                                    1.4.1.1.         Non-defined Terms
                                                                                                                        1) Words and phrases used in this Code that are not included in the list of
                                                                                                                     definitions in Article 1.4.1.2. shall have the meanings that are commonly assigned to
                                                                                                                     them in the context in which they are used, taking into account the specialized use of
                                                                                                                     terms by the various trades and professions to which the terminology applies.
                                                                                                                        2) Where objectives and functional statements are referred to in this Code, they
                                                                                                                     shall be the objectives and functional statements described in Parts 2 and 3.
                                                                                                                        3) Where acceptable solutions are referred to in this Code, they shall be the
                                                                                                                     provisions stated in Parts 2 to 7 of Division B.
                                                                                                                        4) Where alternative solutions are referred to in this Code, they shall be the
                                                                                                                     alternative solutions mentioned in Clause 1.2.1.1.(1)(b).

                                                                                                    1.4.1.2.         Defined Terms
                                                                                                                        1) The words and terms in italics in this Code shall have the following meanings:
                                                                                                                     Access to exit means that part of a means of egress within a floor area that provides access
                                                                                                                       to an exit serving the floor area.
                                                                                                                     Agricultural occupancy (Group G) means the occupancy of a building or part thereof that
                                                                                                                       is located on land that is associated with and devoted to the practice of farming, and
                                                                                                                       is used for the purpose of producing crops, raising farm animals, or preparing,
                                                                                                                       marketing, storing or processing agricultural products. (See Note A-1.4.1.2.(1).)
                                                                                                                     Agricultural occupancy with no human occupants (Group G, Division 4) means an
                                                                                                                       agricultural occupancy that is not intended to be occupied by persons under normal
                                                                                                                       use and is generally used for the storage of agricultural materials and by-products.


                                                                                                    1-2 Division A                                                                         National Fire Code of Canada 2020
                                                                                                    Division A                                                                                               1.4.1.2.

                                                                                                                      Air-supported structure means a structure consisting of a pliable membrane that achieves
                                                                                                                         and maintains its shape and support by internal air pressure.
                                                                                                                      Appliance means a device to convert fuel into energy and includes all components,
                                                                                                                        controls, wiring and piping required to be part of the device by the applicable
                                                                                                                        standard referred to in this Code.
                                                                                                                      Assembly occupancy (Group A) means the occupancy or the use of a building or part
                                                                                                                        thereof by a gathering of persons for civic, political, travel, religious, social,
                                                                                                                        educational, recreational or like purposes, or for the consumption of food or drink.
                                                                                                                      Atmospheric storage tank means a storage tank designed to operate at pressures from
                                                                                                                        atmospheric to 3.5 kPa (gauge).




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                                                                                                                      Authority having jurisdiction means the governmental body responsible for the
                                                                                                                        enforcement of any part of this Code or the official or agency designated by that
                                                                                                                        body to exercise such a function.
                                                                                                                      Basement means a storey or storeys of a building located below the first storey.
                                                                                                                      Breeching means a flue pipe or chamber for receiving flue gases from one or more flue
                                                                                                                         connections and for discharging these gases through a single flue connection.
                                                                                                                      Building means any structure used or intended for supporting or sheltering any use
                                                                                                                        or occupancy.
                                                                                                                      Business and personal services occupancy (Group D) means the occupancy or use of a
                                                                                                                        building or part thereof for the transaction of business or the rendering or receiving
                                                                                                                        of professional or personal services.
                                                                                                                      Care means the provision of services other than treatment by or through care facility
                                                                                                                        management to residents who require these services because of cognitive, physical
                                                                                                                        or behavioural limitations.
                                                                                                                      Care occupancy (Group B, Division 3) means the occupancy or use of a building or part
                                                                                                                        thereof, other than a home-type care occupancy, where care is provided to residents.
                                                                                                                        (See Note A-1.4.1.2.(1).)
                                                                                                                      Chimney means a primarily vertical shaft enclosing at least one flue for conducting flue
                                                                                                                        gases to the outdoors.
                                                                                                                      Closed container means a container sealed by means of a lid or other device such that
                                                                                                                         neither liquid nor vapour will escape from it at ordinary temperatures.
                                                                                                                      Closure means a device or assembly for closing an opening through a fire separation or
                                                                                                                         an exterior wall, such as a door, a shutter, wired glass or glass block, and includes all
                                                                                                                         components such as hardware, closing devices, frames and anchors.
                                                                                                                      Combustible construction means that type of construction that does not meet the
                                                                                                                        requirements for noncombustible construction or encapsulated mass timber construction.
                                                                                                                      Combustible dusts means dusts and particles that are ignitable and liable to produce
                                                                                                                        an explosion.
                                                                                                                      Combustible fibres means finely divided, combustible vegetable or animal fibres and
                                                                                                                        thin sheets or flakes of such materials which, in a loose, unbaled condition, present a
                                                                                                                        flash fire hazard, including cotton, wool, hemp, sisal, jute, kapok, paper and cloth.
                                                                                                                      Combustible liquid means a liquid having a flash point at or above 37.8°C and below
                                                                                                                        93.3°C. (See Subsection 4.1.2. of Division B.)
                                                                                                                      Dangerous goods means products, materials or substances that are
                                                                                                                          (a) regulated by TC SOR/2001-286, “Transportation of Dangerous Goods
                                                                                                                              Regulations (TDGR)” (see Table 3.2.7.1. of Division B), or
                                                                                                                         (b) classified as controlled products under HC SOR/2015-17, “Hazardous Products
                                                                                                                              Regulations” (see Note A-Table 3.2.7.1. of Division B).
                                                                                                                        (See Note A-1.4.1.2.(1).)
                                                                                                                      Detention occupancy (Group B, Division 1) means the occupancy by persons who are
                                                                                                                        restrained from or are incapable of evacuating to a safe location without the
                                                                                                                        assistance of another person because of security measures not under their control.


                                                                                                    National Fire Code of Canada 2020                                                                        Division A 1-3
                                                                                                    1.4.1.2.                                                                                            Division A

                                                                                                                     Dispenser sump means a liquid-tight container intended for installation under a
                                                                                                                       dispensing unit for the collection of any internal leakage of flammable liquid and
                                                                                                                       combustible liquid from the dispensing unit.
                                                                                                                     Distilled beverage alcohol means a beverage that is produced by fermentation and
                                                                                                                       contains more than 20% by volume of water-miscible alcohol.
                                                                                                                     Distillery means a process plant where distilled beverage alcohols are produced,
                                                                                                                       concentrated or otherwise processed, and includes facilities on the same site where
                                                                                                                       the concentrated products may be blended, mixed, stored or packaged.
                                                                                                                     Dwelling unit means a suite operated as a housekeeping unit, used or intended to
                                                                                                                       be used by one or more persons and usually containing cooking, eating, living,




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                                                                                                                       sleeping and sanitary facilities.
                                                                                                                     Encapsulated mass timber construction means that type of construction in which a degree
                                                                                                                       of fire safety is attained by the use of encapsulated mass timber elements with an
                                                                                                                       encapsulation rating and minimum dimensions for structural members and other
                                                                                                                       building assemblies.
                                                                                                                     Encapsulation rating means the time in minutes that a material or assembly of materials
                                                                                                                       will delay the ignition and combustion of encapsulated mass timber elements when
                                                                                                                       it is exposed to fire under specified conditions of test and performance criteria, or
                                                                                                                       as otherwise prescribed by this Code.
                                                                                                                     Exit means that part of a means of egress, including doorways, that leads from the floor
                                                                                                                       area it serves to a separate building, an open public thoroughfare, or an exterior open
                                                                                                                       space protected from fire exposure from the building and having access to an open
                                                                                                                       public thoroughfare. (See Note A-1.4.1.2.(1).)
                                                                                                                     Farm building means a building or part thereof that contains an agricultural occupancy.
                                                                                                                     Fire compartment means an enclosed space in a building that is separated from all other
                                                                                                                        parts of the building by enclosing construction providing a fire separation having a
                                                                                                                        required fire-resistance rating.
                                                                                                                     Fire damper means a closure consisting of a damper that is installed in an air distribution
                                                                                                                        system or a wall or floor assembly and that is normally held open but designed
                                                                                                                        to close automatically in the event of a fire in order to maintain the integrity of
                                                                                                                        the fire separation.
                                                                                                                     Fire-protection rating means the time in minutes or hours that a closure will withstand
                                                                                                                        the passage of flame when exposed to fire under specified conditions of test and
                                                                                                                        performance criteria, or as otherwise prescribed in the National Building Code of
                                                                                                                        Canada 2020.
                                                                                                                     Fire-resistance rating means the time in minutes or hours that a material or assembly of
                                                                                                                        materials will withstand the passage of flame and the transmission of heat when
                                                                                                                        exposed to fire under specified conditions of test and performance criteria, or as
                                                                                                                        determined by extension or interpretation of information derived therefrom as
                                                                                                                        prescribed in the National Building Code of Canada 2020. (See Note A-1.4.1.2.(1).)
                                                                                                                     Fire separation means a construction assembly that acts as a barrier against the spread
                                                                                                                        of fire. (See Note A-1.4.1.2.(1).)
                                                                                                                     Fire stop flap means a device intended for use in horizontal assemblies required to have
                                                                                                                        a fire-resistance rating and incorporating protective ceiling membranes that operates
                                                                                                                        to close off a duct opening through the membrane in the event of a fire.
                                                                                                                     Firewall means a type of fire separation of noncombustible construction that subdivides a
                                                                                                                        building or separates adjoining buildings to resist the spread of fire and that has a
                                                                                                                        fire-resistance rating as prescribed in this Code and has structural stability to remain
                                                                                                                        intact under fire conditions for the required fire-rated time.
                                                                                                                     First storey means the uppermost storey having its floor level not more than 2 m above
                                                                                                                        grade.
                                                                                                                     Flame-spread rating means an index or classification indicating the extent of
                                                                                                                        spread-of-flame on the surface of a material or an assembly of materials as
                                                                                                                        determined in a standard fire test as prescribed in the National Building Code of
                                                                                                                        Canada 2020.


                                                                                                    1-4 Division A                                                                         National Fire Code of Canada 2020
                                                                                                    Division A                                                                                               1.4.1.2.

                                                                                                                      Flammable liquid means a liquid having a flash point below 37.8°C and having a vapour
                                                                                                                         pressure not more than 275.8 kPa (absolute) at 37.8°C as determined by ASTM D323,
                                                                                                                         “Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method).”
                                                                                                                         (See Subsection 4.1.2. of Division B.)
                                                                                                                      Flash point means the minimum temperature at which a liquid within a container gives
                                                                                                                         off vapour in sufficient concentration to form an ignitable mixture with air near the
                                                                                                                         surface of the liquid. (See Subsection 4.1.3. of Division B.)
                                                                                                                      Floor area means the space on any storey of a building between exterior walls and
                                                                                                                         required firewalls, including the space occupied by interior walls and partitions, but
                                                                                                                         not including exits, vertical service spaces, and their enclosing assemblies.




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                                                                                                                      Flue means an enclosed passageway for conveying flue gases.
                                                                                                                      Flue collar means the portion of a fuel-fired appliance designed for the attachment of
                                                                                                                         the flue pipe or breeching.
                                                                                                                      Flue pipe means the pipe connecting the flue collar of an appliance to a chimney.
                                                                                                                      Fuel-dispensing station means any premises or part thereof at which flammable liquids
                                                                                                                        or combustible liquids are dispensed from fixed equipment into the fuel tanks of
                                                                                                                        motor vehicles, watercraft or floatplanes.
                                                                                                                      Grade means the lowest of the average levels of finished ground adjoining each
                                                                                                                        exterior wall of a building, except that localized depressions need not be considered
                                                                                                                        in the determination of average levels of finished ground. (See First storey and
                                                                                                                        Note A-1.4.1.2.(1).)
                                                                                                                      Greenhouse agricultural occupancy (Group G, Division 3) means an agricultural occupancy
                                                                                                                        where plants are grown in a building or part thereof that is primarily constructed
                                                                                                                        of roofs and walls designed to transmit natural light.
                                                                                                                      High-hazard agricultural occupancy (Group G, Division 1) means an agricultural occupancy
                                                                                                                        containing sufficient quantities of highly combustible and flammable or explosive
                                                                                                                        materials which, because of their inherent characteristics, constitute a special fire
                                                                                                                        hazard.
                                                                                                                      High-hazard industrial occupancy (Group F, Division 1) means an industrial occupancy
                                                                                                                        containing sufficient quantities of highly combustible and flammable or explosive
                                                                                                                        materials which, because of their inherent characteristics, constitute a special fire
                                                                                                                        hazard.
                                                                                                                      Home-type care occupancy (Group B, Division 4) means the occupancy or use of a
                                                                                                                        building consisting of a single detached housekeeping unit where care is provided
                                                                                                                        to residents and may include the living space of the caregiver and their family.
                                                                                                                        (See Note A-1.4.1.2.(1).)
                                                                                                                      Individual storage area (ISA) means the area occupied by piles, bin boxes, racks or shelves,
                                                                                                                         including subsidiary aisles providing access to the stored products, and separated
                                                                                                                         from adjacent storage by aisles not less than 2.4 m in width. (See Note A-1.4.1.2.(1).)
                                                                                                                      Industrial occupancy (Group F) means the occupancy or use of a building or part thereof
                                                                                                                         for the assembling, fabricating, manufacturing, processing, repairing or storing
                                                                                                                         of goods and materials.
                                                                                                                      Interconnected floor space means superimposed floor areas or parts of floor areas in which
                                                                                                                         floor assemblies that are required to be fire separations are penetrated by openings
                                                                                                                         that are not provided with closures.
                                                                                                                      Lower explosive limit means the minimum concentration of vapour in air at which the
                                                                                                                        propagation of flame occurs on contact with a source of ignition.
                                                                                                                      Low-hazard industrial occupancy (Group F, Division 3) means an industrial occupancy in
                                                                                                                        which the combustible content is not more than 50 kg/m2 or 1 200 MJ/m2 of floor area.
                                                                                                                      Low pressure storage tank means a storage tank designed to operate at pressures greater
                                                                                                                        than 3.5 kPa (gauge) and up to 100 kPa (gauge).
                                                                                                                      Major occupancy means the principal occupancy for which a building or part thereof
                                                                                                                        is used or intended to be used, and shall be deemed to include the subsidiary


                                                                                                    National Fire Code of Canada 2020                                                                        Division A 1-5
                                                                                                    1.4.1.2.                                                                                            Division A

                                                                                                                       occupancies that are an integral part of the principal occupancy. The major occupancy
                                                                                                                       classifications used in this Code are as follows:
                                                                                                                            A1 – Assembly occupancies intended for the production and viewing of the
                                                                                                                                 performing arts
                                                                                                                            A2 – Assembly occupancies not elsewhere classified in Group A
                                                                                                                            A3 – Assembly occupancies of the arena type
                                                                                                                            A4 – Assembly occupancies in which the occupants are gathered in the open air
                                                                                                                            B1 – Detention occupancies in which persons are under restraint or are incapable
                                                                                                                                 of self-preservation because of security measures not under their control




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                                                                                                                            B2 – Treatment occupancies
                                                                                                                            B3 – Care occupancies
                                                                                                                            B4 – Home-type care occupancies
                                                                                                                             C – Residential occupancies
                                                                                                                             D – Business and personal services occupancies
                                                                                                                              E – Mercantile occupancies
                                                                                                                             F1 – High-hazard industrial occupancies
                                                                                                                             F2 – Medium-hazard industrial occupancies
                                                                                                                             F3 – Low-hazard industrial occupancies
                                                                                                                            G1 – High-hazard agricultural occupancies
                                                                                                                            G2 – Agricultural occupancies not elsewhere classified in Group G
                                                                                                                            G3 – Greenhouse agricultural occupancies
                                                                                                                            G4 – Agricultural occupancies with no human occupants
                                                                                                                     Marine fuel-dispensing station means a fuel-dispensing station at which flammable liquids or
                                                                                                                       combustible liquids are dispensed into the fuel tanks of watercraft or floatplanes.
                                                                                                                     Means of egress means a continuous path of travel provided for the escape of persons
                                                                                                                       from any point in a building or contained open space to a separate building, an open
                                                                                                                       public thoroughfare, or an exterior open space protected from fire exposure from
                                                                                                                       the building and having access to an open public thoroughfare. Means of egress
                                                                                                                       includes exits and access to exits.
                                                                                                                     Medium-hazard industrial occupancy (Group F, Division 2) means an industrial occupancy
                                                                                                                       in which the combustible content is more than 50 kg/m2 or 1 200 MJ/m2 of floor area
                                                                                                                       and not classified as a high-hazard industrial occupancy.
                                                                                                                     Mercantile occupancy (Group E) means the occupancy or use of a building or part thereof
                                                                                                                       for the displaying or selling of retail goods, wares or merchandise.
                                                                                                                     Noncombustible construction means that type of construction in which a degree of fire
                                                                                                                       safety is attained by the use of noncombustible materials for structural members
                                                                                                                       and other building assemblies.
                                                                                                                     Occupancy means the use or intended use of a building or part thereof for the shelter or
                                                                                                                       support of persons, animals or property.
                                                                                                                     Occupant load means the number of persons for which a building or part thereof is
                                                                                                                       designed.
                                                                                                                     Partition means an interior wall 1 storey or part-storey in height that is not loadbearing.
                                                                                                                     Pressure vessel means a storage tank designed to operate at pressures greater than
                                                                                                                        100 kPa (gauge).
                                                                                                                     Process plant means an industrial occupancy where materials, including flammable liquids,
                                                                                                                       combustible liquids or gases, are produced or used in a process. (See Table 3.2.7.1. of
                                                                                                                       Division B.)
                                                                                                                     Rack means any combination of vertical, horizontal or diagonal members that support
                                                                                                                       stored materials on solid or open shelves, including both fixed and portable units.


                                                                                                    1-6 Division A                                                                         National Fire Code of Canada 2020
                                                                                                    Division A                                                                                                  1.4.1.2.

                                                                                                                      Refinery means any process plant in which flammable liquids or combustible liquids are
                                                                                                                         produced from crude petroleum, including areas on the same site where the
                                                                                                                         resulting products are blended, packaged or stored on a commercial scale.
                                                                                                                      Residential occupancy (Group C) means the occupancy or use of a building or part
                                                                                                                        thereof by persons for whom sleeping accommodation is provided but who are not
                                                                                                                        harboured for the purpose of receiving care or treatment and are not involuntarily
                                                                                                                        detained.
                                                                                                                      Self-service outlet means a fuel-dispensing station other than a marine fuel-dispensing station
                                                                                                                         where the public handles the dispenser.
                                                                                                                      Service room means a room provided in a building to contain equipment associated with




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                                                                                                                         building services. (See Note A-1.4.1.2.(1).)
                                                                                                                      Service space means space provided in a building to facilitate or conceal the installation
                                                                                                                         of building service facilities such as chutes, ducts, pipes, shafts or wires.
                                                                                                                      Smoke alarm means a combined smoke detector and audible alarm device designed to
                                                                                                                        sound an alarm within the room or suite in which it is located upon the detection of
                                                                                                                        smoke within that room or suite.
                                                                                                                      Spill containment sump means a liquid-tight container intended to catch, retain and
                                                                                                                         provide for the evacuation of any product at the time of filling.
                                                                                                                      Sprinklered (as applying to a building or part thereof) means that the building or part
                                                                                                                        thereof is equipped with a system of automatic sprinklers.
                                                                                                                      Storage tank means a vessel for flammable liquids or combustible liquids having a capacity
                                                                                                                         of more than 230 L, and designed to be installed in a fixed location.
                                                                                                                      Storey means that portion of a building that is situated between the top of any floor
                                                                                                                         and the top of the floor next above it, and if there is no floor above it, that portion
                                                                                                                         between the top of such floor and the ceiling above it.
                                                                                                                      Street means any highway, road, boulevard, square or other improved thoroughfare
                                                                                                                         9 m or more in width, that has been dedicated or deeded for public use and is
                                                                                                                         accessible to fire department vehicles and equipment.
                                                                                                                      Suite means a single room or series of rooms of complementary use, operated under a
                                                                                                                        single tenancy, and includes dwelling units, individual guest rooms in motels, hotels,
                                                                                                                        boarding houses, rooming houses and dormitories as well as individual stores and
                                                                                                                        individual or complementary rooms for business and personal services occupancies.
                                                                                                                        (See Note A-1.4.1.2.(1).)
                                                                                                                      Supervisory staff means those occupants of a building who have some delegated
                                                                                                                        responsibility for the fire safety of other occupants under the fire safety plan.
                                                                                                                      Tank vehicle means any vehicle, other than railroad tank cars and boats, with a cargo
                                                                                                                        tank having a capacity of more than 450 L, mounted or built as an integral part of
                                                                                                                        the vehicle and used for the transportation of flammable liquids or combustible liquids
                                                                                                                        and including tank trucks, trailers and semi-trailers.
                                                                                                                      Transition sump means an underground liquid-tight container intended for installation
                                                                                                                         where mechanical connection or transition takes place for the collection of any
                                                                                                                         internal leakage of flammable liquid and combustible liquid.
                                                                                                                      Treatment means the provision of medical or other health-related intervention to
                                                                                                                         persons, where the administration or lack of administration of these interventions
                                                                                                                         may render them incapable of evacuating to a safe location without the assistance of
                                                                                                                         another person. (See Note A-1.4.1.2.(1).)
                                                                                                                      Treatment occupancy (Group B, Division 2) means the occupancy or use of a building or
                                                                                                                         part thereof for the provision of treatment, and where overnight accommodation is
                                                                                                                         available to facilitate the treatment. (See Note A-1.4.1.2.(1).)
                                                                                                                      Turbine sump means a container designed to provide access to equipment and to contain
                                                                                                                        minor leakage, and installed to prevent water ingress.
                                                                                                                      Unstable liquid means a liquid, including flammable liquids and combustible liquids, that
                                                                                                                        is chemically reactive to the extent that it will vigorously react or decompose at or


                                                                                                    National Fire Code of Canada 2020                                                                           Division A 1-7
                                                                                                    1.4.2.1.                                                                                          Division A

                                                                                                                       near normal temperature and pressure conditions or that is chemically unstable
                                                                                                                       when subject to impact.
                                                                                                                     Vertical service space means a shaft oriented essentially vertically that is provided in
                                                                                                                        a building to facilitate the installation of building services including mechanical,
                                                                                                                        electrical and plumbing installations and facilities such as elevators, refuse chutes
                                                                                                                        and linen chutes.

                                                                                                    1.4.2.           Symbols and Other Abbreviations
                                                                                                    1.4.2.1.         Symbols and Other Abbreviations




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                                                                                                                        1) The symbols and other abbreviations in this Code shall have the meanings
                                                                                                                     assigned to them in this Article and Article 1.3.2.1. of Division B.
                                                                                                                      cm ................. centimetre(s)
                                                                                                                      cSt ................. centistoke(s)
                                                                                                                      °C ................. degree(s) Celsius
                                                                                                                      h .................... hour(s)
                                                                                                                      kg ................. kilogram(s)
                                                                                                                      kPa ............... kilopascal(s)
                                                                                                                      L ................... litre(s)
                                                                                                                      m .................. metre(s)
                                                                                                                      max. ............. maximum
                                                                                                                      min. .............. minimum
                                                                                                                      min ............... minute(s)
                                                                                                                      MJ ................. megajoule(s)
                                                                                                                      mm ............... millimetre(s)
                                                                                                                      No. ............... number(s)
                                                                                                                      pS/m ............. pico Siemens per metre
                                                                                                                      s .................... second(s)
                                                                                                                      St .................. stoke(s)
                                                                                                                      > .................... greater than
                                                                                                                      < .................... less than
                                                                                                                      ≤ .................... less than or equal to
                                                                                                                      % ................... per cent


                                                                                                    Section 1.5. Referenced Documents and
                                                                                                    Organizations
                                                                                                    1.5.1.           Referenced Documents
                                                                                                    1.5.1.1.         Application of Referenced Documents
                                                                                                                         1) Except as provided in Sentence (2), the provisions of documents referenced in
                                                                                                                     this Code, and of any documents referenced within those documents, apply only
                                                                                                                     to the extent that they relate to
                                                                                                                         a) buildings and facilities, and
                                                                                                                         b) the objectives and functional statements attributed to the applicable
                                                                                                                             acceptable solutions in Division B where the documents are referenced.
                                                                                                                     (See Note A-1.5.1.1.(1).)


                                                                                                    1-8 Division A                                                                       National Fire Code of Canada 2020
                                                                                                    Division A                                                                                          1.5.2.1.

                                                                                                                         2) Where a provision of this Code references another National Model Code, the
                                                                                                                      applicable objectives and functional statements shall include those found in that
                                                                                                                      referenced National Model Code.

                                                                                                    1.5.1.2.          Conflicting Requirements

                                                                                                                        1) In case of conflict between the provisions of this Code and those of a referenced
                                                                                                                      document, the provisions of this Code shall govern.

                                                                                                    1.5.1.3.          Applicable Editions

                                                                                                                         1) Where documents are referenced in this Code, they shall be the editions




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                                                                                                                      designated in Subsection 1.3.1. of Division B.

                                                                                                    1.5.2.            Organizations

                                                                                                    1.5.2.1.          Abbreviations of Proper Names

                                                                                                                         1) The abbreviations of proper names in this Code shall have the meanings
                                                                                                                      assigned to them in Article 1.3.2.1. of Division B.




                                                                                                    National Fire Code of Canada 2020                                                                  Division A 1-9
                                    Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays




1-10 Division A




National Fire Code of Canada 2020
                                                                                                    Division A



                                                                                                    Notes to Part 1
                                                                                                    Compliance




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                                                                                                    A-1.1.1.1.(1) Application of this Code. This Code applies to buildings and facilities, whether occupied
                                                                                                    or vacant. For the purposes of Sentence 1.1.1.1.(1), the term “facilities” is used in its broadest sense to
                                                                                                    include all premises that are not included in the definition of “building” in this Code, such as outdoor and
                                                                                                    underground areas, structures and equipment. Such “facilities” are often associated with storage, distribution
                                                                                                    and manufacturing activities.
                                                                                                    The NFC contains references to the National Building Code of Canada 2020 (NBC) for the design, construction
                                                                                                    and installation of many fire protection features. Some NBC requirements are most readily applied to new
                                                                                                    buildings and their retroactive application to existing situations as prescribed by this Code could result in some
                                                                                                    difficulty in achieving compliance. It is the intent of the NFC that an equivalent level of safety be achieved
                                                                                                    rather than necessarily achieving strict conformance to the NBC. The application of this Code to the upgrading
                                                                                                    of existing facilities should be based on the judgment of the enforcement authority, who must deal with each
                                                                                                    case on its own merits.
                                                                                                    The NFC states that the owner or the owner's authorized agent is responsible for carrying out the provisions
                                                                                                    of the Code (see Article 2.2.1.1. of Division C). However, the owner is expected to communicate with the
                                                                                                    authority having jurisdiction, who is in a position to assess the relative significance of variances from the
                                                                                                    NBC requirements. Such authority may then determine that upgrading measures are not necessary, on the
                                                                                                    basis that the existing arrangement represents an equivalent level of fire and life safety. The NFC presumes
                                                                                                    that the adopting legislation provides for the exercise of the necessary discretionary judgment on the part
                                                                                                    of the enforcing officials, along with appropriate rights to appeal (see Note A-2.2. of Division C). See also
                                                                                                    Note A-2.1.3.1.(1) of Division B and Note A-1.1.1.1.(1) of Division A of the NBC.

                                                                                                    A-1.2.1.1.(1)(a) Code Compliance via Acceptable Solutions. If a building design (e.g. material,
                                                                                                    component, assembly or system) can be shown to meet all provisions of the applicable acceptable solutions
                                                                                                    in Division B (e.g. it complies with the applicable provisions of a referenced standard), it is deemed to have
                                                                                                    satisfied the objectives and functional statements linked to those provisions and thus to have complied with
                                                                                                    that part of the Code. In fact, if it can be determined that a design meets all the applicable acceptable solutions
                                                                                                    in Division B, there is no need to consult the objectives and functional statements in Division A to determine its
                                                                                                    compliance.

                                                                                                    A-1.2.1.1.(1)(b) Code Compliance via Alternative Solutions. Where a design differs from the
                                                                                                    acceptable solutions in Division B, then it should be treated as an “alternative solution.” A proponent of an
                                                                                                    alternative solution must demonstrate that the alternative solution addresses the same issues as the applicable
                                                                                                    acceptable solutions in Division B and their attributed objectives and functional statements. However, because
                                                                                                    the objectives and functional statements are entirely qualitative, demonstrating compliance with them in
                                                                                                    isolation is not possible. Therefore, Clause 1.2.1.1.(1)(b) identifies the principle that Division B establishes the
                                                                                                    quantitative performance targets that alternative solutions must meet. In many cases, these targets are not
                                                                                                    defined very precisely by the acceptable solutions—certainly far less precisely than would be the case with
                                                                                                    a true performance code, which would have quantitative performance targets and prescribed methods of
                                                                                                    performance measurement for all aspects of building performance. Nevertheless, Clause 1.2.1.1.(1)(b) makes it
                                                                                                    clear that an effort must be made to demonstrate that an alternative solution will perform as well as a design
                                                                                                    that would satisfy the applicable acceptable solutions in Division B—not “well enough” but “as well as.”

                                                                                                    These Notes are included for explanatory purposes only and do not form part of the requirements. The number
                                                                                                    that introduces each Note corresponds to the applicable requirement in this Part.




                                                                                                    National Fire Code of Canada 2020                                                                             Division A 1-11
                                                                                                    A-1.4.1.2.(1)                                                                                     Division A

                                                                                                    In this sense, it is Division B that defines the boundaries between acceptable risks and the “unacceptable” risks
                                                                                                    referred to in the statements of the Code's objectives, i.e. the risk remaining once the applicable acceptable
                                                                                                    solutions in Division B have been implemented represents the residual level of risk deemed to be acceptable by
                                                                                                    the broad base of Canadians who have taken part in the consensus process used to develop the Code.

                                                                                                        Level of Performance
                                                                                                        Where Division B offers a choice between several possible designs, it is likely that these designs may
                                                                                                        not all provide exactly the same level of performance. Among a number of possible designs satisfying
                                                                                                        acceptable solutions in Division B, the design providing the lowest level of performance should generally
                                                                                                        be considered to establish the minimum acceptable level of performance to be used in evaluating alternative
                                                                                                        solutions for compliance with the Code.




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                                                                                                        Sometimes a single design will be used as an alternative solution to several sets of acceptable solutions
                                                                                                        in Division B. In this case, the level of performance required of the alternative solution should be at least
                                                                                                        equivalent to the overall level of performance established by all the applicable sets of acceptable solutions
                                                                                                        taken as a whole.
                                                                                                        Each provision in Division B has been analyzed to determine what it is intended to achieve. The resultant
                                                                                                        intent statements clarify what undesirable results each provision seeks to preclude. These statements
                                                                                                        are not a legal component of the Code, but are advisory in nature, and can help Code users establish
                                                                                                        performance targets for alternative solutions. They are published as a separate electronic document entitled
                                                                                                        “Supplement to the NFC 2020: Intent Statements,” which is available on the NRC's website.

                                                                                                        Areas of Performance
                                                                                                        A subset of the acceptable solutions in Division B may establish criteria for particular types of designs (e.g.
                                                                                                        certain types of materials, components, assemblies, or systems). Often such subsets of acceptable solutions
                                                                                                        are all attributed to the same objective: OS1, Fire Safety, for example. In some cases, the designs that are
                                                                                                        normally used to satisfy this subset of acceptable solutions might also provide some benefits that could be
                                                                                                        related to some other objective: OP1, Fire Protection of the Building or Facility, for example. However, if
                                                                                                        none of the applicable acceptable solutions are linked to Objective OP1, it is not necessary that alternative
                                                                                                        solutions proposed to replace these acceptable solutions provide a similar benefit related to Fire Protection
                                                                                                        of the Building or Facility. In other words, the acceptable solutions in Division B establish acceptable levels
                                                                                                        of performance for compliance with the Code only in those areas defined by the objectives and functional
                                                                                                        statements attributed to the acceptable solutions.

                                                                                                        Applicable Acceptable Solutions
                                                                                                        In demonstrating that an alternative solution will perform as well as a design that would satisfy the
                                                                                                        applicable acceptable solutions in Division B, its evaluation should not be limited to comparison with
                                                                                                        the acceptable solutions to which an alternative is proposed. It is possible that acceptable solutions
                                                                                                        elsewhere in the Code also apply. The proposed alternative solution may be shown to perform as well as
                                                                                                        the most apparent acceptable solution, which it is replacing, but may not perform as well as other relevant
                                                                                                        acceptable solutions. For example, the use of sprinklers to protect the exterior wall of a building may
                                                                                                        permit combustible materials to be stored closer to that wall than otherwise permitted by the Code, but
                                                                                                        the proximity of the stored materials to the wall may contravene firefighter access provisions elsewhere
                                                                                                        in the Code. All applicable acceptable solutions should be taken into consideration in demonstrating the
                                                                                                        compliance of an alternative solution.

                                                                                                    A-1.4.1.2.(1)     Defined Terms.

                                                                                                        Agricultural Occupancy
                                                                                                        The term “processing” refers to activities carried out for the purpose of maintaining the quality of
                                                                                                        agricultural products or to the minimum amount of activity necessary to produce a saleable product.

                                                                                                        Care Occupancy
                                                                                                        Support services rendered by or through care facility management refer to services provided by the
                                                                                                        organization that is responsible for the care for a period exceeding 24 consecutive hours. They do not refer
                                                                                                        to services provided by residents of dwelling units or suites, or to services arranged directly by residents
                                                                                                        of dwelling units or suites with outside agencies.


                                                                                                    1-12 Division A                                                                      National Fire Code of Canada 2020
                                                                                                    Division A                                                                                                           A-1.4.1.2.(1)

                                                                                                        In the context of care occupancies, these services may include a daily assessment of the resident's
                                                                                                        functioning, awareness of their whereabouts, the making of appointments for residents and reminding
                                                                                                        them of those appointments, the ability and readiness to intervene if a crisis arises for a resident,
                                                                                                        supervision in areas of nutrition or medication, and provision of transient medical services. Services
                                                                                                        may also include activities of daily living such as bathing, dressing, feeding, and assistance in the use of
                                                                                                        washroom facilities, etc. No actual treatment is provided by or through care facility management.

                                                                                                        Dangerous Goods
                                                                                                        Prior to the 2015 edition of the NFC, the terminology used to identify dangerous goods came from
                                                                                                        “Transportation of Dangerous Goods Regulations (TDGR).” The TDGR apply solely to the adequate
                                                                                                        identification of hazards related to dangerous goods in the contexts of transportation and emergency




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                                                                                                        response.
                                                                                                        Dangerous goods in the workplace are identified in accordance with the “Workplace Hazardous Materials
                                                                                                        Information System (WHMIS),” established in accordance with the Hazardous Products Act. The WHMIS
                                                                                                        identification system is specifically designed with the users of the product in mind.
                                                                                                        Since the 2015 edition, the NFC identifies dangerous goods as products regulated by the TDGR or classified
                                                                                                        under the WHMIS. In order to harmonize these two nomenclatures for dangerous goods, class descriptors
                                                                                                        were developed taking into consideration both the TDGR and WHMIS classification systems. The NFC
                                                                                                        nomenclature uses a descriptive approach to classifying dangerous goods, which is similar to the one used
                                                                                                        by the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) developed by the
                                                                                                        United Nations (UN). Canada has actively participated in the development of the GHS and has committed
                                                                                                        to its implementation through the TDGR and WHMIS regulations.
                                                                                                        The NFC nomenclature takes a common sense approach that corresponds more closely to how people refer
                                                                                                        to dangerous goods on a daily basis, blending TDGR and WHMIS terminology without using non-descript
                                                                                                        numbers and letters as previously found in the NFC, TDGR and WHMIS.

                                                                                                                                                            Table A-1.4.1.2.(1)
                                                                                                                                         TDGR, WHMIS and NFC Class Descriptors for Dangerous Goods

                                                                                                                               TDGR
                                                                                                                                                                             WHMIS                                        NFC
                                                                                                       Class                     Descriptor
                                                                                                        1        Explosives                               Explosives                                  Explosives
                                                                                                        2        Gases                                    Gases under pressure                        Compressed gases
                                                                                                        2.1      Flammable gases                          Flammable gases; Flammable aerosols         Flammable gases; Flammable aerosols
                                                                                                        2.2      Non-flammable, non-toxic gases           Gases under pressure                        Non-flammable, non-toxic gases
                                                                                                     2.2 (5.1)   —                                        Oxidizing gases                             Oxidizing gases
                                                                                                        2.3      Toxic gases                              —                                           Toxic gases
                                                                                                        3        Flammable liquids                        Flammable liquids                           Flammable liquids
                                                                                                        4.1      Flammable solids                         Flammable solids                            Flammable solids
                                                                                                                 Substances liable to spontaneous
                                                                                                        4.2                                               Pyrophoric liquids; Pyrophoric solids       Pyrophoric materials
                                                                                                                 combustion
                                                                                                                                                          Substances and mixtures which, in contact
                                                                                                        4.3      Water-reactive substances                                                            Water-reactive substances
                                                                                                                                                          with water, emit flammable gases
                                                                                                        5.1      Oxidizing substances                     Oxidizing liquids; Oxidizing solids         Oxidizers
                                                                                                        5.2      Organic peroxides                        Organic peroxides                           Organic peroxides
                                                                                                        6.1      Toxic substances                         (1)                                         Toxic substances
                                                                                                        6.2      Infectious substances                    (1)                                         Infectious materials
                                                                                                        7        Radioactive materials                    Not covered by WHMIS                        Radioactive materials
                                                                                                        8                                                 (2)
                                                                                                                 Corrosives                                                                           Corrosives
                                                                                                                 Miscellaneous products, substances, or   (2)
                                                                                                        9                                                                                             Miscellaneous dangerous goods
                                                                                                                 organisms
                                                                                                        —        —                                        Previously Class F                          Dangerously reactive materials


                                                                                                    National Fire Code of Canada 2020                                                                                             Division A 1-13
                                                                                                    A-1.4.1.2.(1)                                                                                                                    Division A

                                                                                                                                                             Table A-1.4.1.2.(1) (Continued)

                                                                                                    Notes to Table A-1.4.1.2.(1):
                                                                                                    (1)   The WHMIS has various descriptors for this Class of products based on their toxicity.
                                                                                                    (2)   The WHMIS has various descriptors for this Class of products based on the nature of the danger presented by the product.


                                                                                                           Exit
                                                                                                           Exits include doors or doorways leading directly into an exit stair or directly to the outside. In the case of an
                                                                                                           exit leading to a separate building, exits also include vestibules, walkways, bridges or balconies.

                                                                                                           Fire-Resistance Rating




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                                                                                                           Since it is not practicable to measure the fire resistance of constructions in situ, they must be evaluated
                                                                                                           under some agreed test conditions. A specified fire-resistance rating is not necessarily the actual time that
                                                                                                           the assembly would endure in situ in a building fire, but is that which the particular construction must
                                                                                                           meet under the specified methods of test.

                                                                                                           Fire Separation
                                                                                                           A fire separation may or may not have a fire-resistance rating.

                                                                                                           Grade
                                                                                                           Localized depressions that need not be considered in the determination of the elevation of grade include
                                                                                                           such features as vehicle and pedestrian entrances and other minor depressions that do not affect
                                                                                                           accessibility for firefighting or evacuation.

                                                                                                           Home-Type Care Occupancy
                                                                                                           Support services rendered to the residents of a home-type care occupancy refer to services provided at
                                                                                                           a cost by caregivers who are responsible for the care for a period exceeding 24 consecutive hours. They
                                                                                                           do not refer to services provided by family members of the residents, or to services arranged directly by
                                                                                                           residents with outside agencies.
                                                                                                           In the context of home-type care occupancies, these services may include a daily assessment of the
                                                                                                           resident's functioning, awareness of their whereabouts, the making of appointments for residents and
                                                                                                           reminding them of those appointments, the ability and readiness to intervene if a crisis arises for a resident,
                                                                                                           supervision in areas of nutrition or medication, and provision of transient medical services. Services
                                                                                                           may also include activities of daily living such as bathing, dressing, feeding, and assistance in the use of
                                                                                                           washroom facilities, etc. No actual treatment is provided by the caregivers.

                                                                                                           Individual Storage Area
                                                                                                           The width of subsidiary aisles providing access to stored products within an individual storage area
                                                                                                           may be determined by material handling methods, or other criteria such as minimum width for access
                                                                                                           to exits or fire protection equipment.

                                                                                                           Service Room
                                                                                                           Typical examples of service rooms include boiler rooms, furnace rooms, incinerator rooms, garbage
                                                                                                           handling rooms and rooms to accommodate air-conditioning or heating appliances, pumps, compressors
                                                                                                           and electrical equipment. Rooms such as elevator machine rooms and common laundry rooms are not
                                                                                                           considered to be service rooms.

                                                                                                           Suite
                                                                                                           Tenancy in the context of the term “suite” applies to both rental and ownership tenure. In a condominium
                                                                                                           arrangement, for example, dwelling units are considered separate suites even though they are individually
                                                                                                           owned. In order to be of complementary use, a series of rooms that constitute a suite must be in reasonably
                                                                                                           close proximity to each other and have access to each other either directly by means of a common doorway
                                                                                                           or indirectly by a corridor, vestibule or other similar arrangement.
                                                                                                           The term “suite” does not apply to rooms such as service rooms, common laundry rooms and common
                                                                                                           recreational rooms that are not leased or under a separate tenure in the context of the Code. Similarly, the


                                                                                                    1-14 Division A                                                                                               National Fire Code of Canada 2020
                                                                                                    Division A                                                                                   A-1.5.1.1.(1)

                                                                                                        term “suite” is not normally applied in the context of buildings such as schools and hospitals, since the
                                                                                                        entire building is under a single tenure. However, a room that is individually rented is considered a suite. A
                                                                                                        warehousing unit in a mini-warehouse is a suite. A rented room in a nursing home could be considered as a
                                                                                                        suite if the room was under a separate tenure. A hospital bedroom on the other hand is not considered to be
                                                                                                        under a separate tenure, since patients have little control of that space, even though they pay the hospital a
                                                                                                        per diem rate for the privilege of using the hospital facilities, which include the sleeping areas.
                                                                                                        For certain requirements in the NBC, the expression “room or suite” is used (e.g. travel distance). This
                                                                                                        means that the requirement applies within the rooms of suites as well as to the suite itself and to rooms
                                                                                                        that may be located outside the suite. In other places the expression “suite, and rooms not located within
                                                                                                        a suite” is used (e.g. for the installation of smoke and heat detectors). This means that the requirement
                                                                                                        applies to individual suites as defined, but not to each room within the suite. The rooms “not within a




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                                                                                                        suite” would include common laundry rooms, common recreational rooms and service rooms, which are
                                                                                                        not considered as tenant-occupied space.

                                                                                                        Treatment
                                                                                                        The ability to evacuate unassisted implies that a person is capable of recognizing and responding to an
                                                                                                        emergency given their physical, cognitive and behavioural abilities, and able to move to a safe location
                                                                                                        without the assistance of another person. For example, such persons must be able to arise and walk, or
                                                                                                        transfer from a bed or chair to a means of mobility, and leave the building or move to a safe location on
                                                                                                        their own.

                                                                                                        Treatment Occupancy
                                                                                                        “Treatments” may include such things as surgery, intensive care, and emergency medical intervention.
                                                                                                        Treatment services differ from the services provided by care occupancies like personal care assistance or the
                                                                                                        administration of medication, and from those provided by business and personal services occupancies like
                                                                                                        dentistry or day procedures.

                                                                                                    A-1.5.1.1.(1) Application of Referenced Documents. Documents referenced in the NFC may
                                                                                                    contain provisions covering a wide range of issues, including issues that are unrelated to the objectives and
                                                                                                    functional statements stated in Parts 2 and 3 of Division A respectively; e.g. protection of stored products
                                                                                                    against damage or loss due to fire. Sentence 1.5.1.1.(1) is intended to make it clear that, whereas referencing
                                                                                                    these documents in the NFC generally has the effect of making the provisions of those documents part of the
                                                                                                    Code, provisions that are unrelated to buildings and facilities or to the objectives and functional statements
                                                                                                    attributed to the provisions in Division B where the document is referenced are excluded.
                                                                                                    Furthermore, many documents referenced in the NFC contain references to other documents, which may
                                                                                                    also, in turn, refer to other documents. These secondary and tertiary referenced documents may contain
                                                                                                    provisions that are unrelated to buildings and facilities or to the objectives and functional statements of the
                                                                                                    NFC: such provisions—no matter how far down the chain of references they occur—are not included in the
                                                                                                    intent of Sentence 1.5.1.1.(1).




                                                                                                    National Fire Code of Canada 2020                                                                    Division A 1-15
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1-16 Division A




National Fire Code of Canada 2020
                                                                                                    Division A



                                                                                                    Part 2
                                                                                                    Objectives




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                                                                                                      2.1.          Application
                                                                                                      2.1.1.        Application ........................................ 2-1

                                                                                                      2.2.          Objectives
                                                                                                      2.2.1.        Objectives ......................................... 2-1

                                                                                                                    Notes to Part 2 .................. 2-5




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National Fire Code of Canada 2020
                                                                                                    Division A



                                                                                                    Part 2
                                                                                                    Objectives




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                                                                                                    Section 2.1. Application
                                                                                                    2.1.1.            Application

                                                                                                    2.1.1.1.          Application

                                                                                                                         1) This Part applies to all buildings and facilities covered in this Code. (See
                                                                                                                      Article 1.1.1.1.)

                                                                                                    2.1.1.2.          Application of Objectives

                                                                                                                         1) Except as provided in Sentence (2), the objectives described in this Part apply
                                                                                                                         a) to all buildings and facilities covered in this Code (see Article 1.1.1.1.), and
                                                                                                                         b) only to the extent that they relate to compliance with this Code as required
                                                                                                                            in Article 1.2.1.1.

                                                                                                                        2) Objective OP, Fire Protection of Buildings and Facilities (including
                                                                                                                      Sub-Objectives OP1, Fire Protection of the Building or Facility, and OP3, Protection of
                                                                                                                      Adjacent Buildings or Facilities from Fire), does not apply to farm buildings.


                                                                                                    Section 2.2. Objectives
                                                                                                    2.2.1.            Objectives

                                                                                                    2.2.1.1.          Objectives

                                                                                                                         1) The objectives of this Code are as follows (see Note A-2.2.1.1.(1)):

                                                                                                                              OS        Safety
                                                                                                                                        An objective of this Code is to limit the probability that, as a result of
                                                                                                                                        specific circumstances related to the building or facility, a person in or
                                                                                                                                        adjacent to the building or facility will be exposed to an unacceptable
                                                                                                                                        risk of injury.




                                                                                                    National Fire Code of Canada 2020                                                                            Division A 2-1
                                                                                                    2.2.1.1.                                                                                  Division A

                                                                                                                          OS1    Fire Safety
                                                                                                                                 An objective of this Code is to limit the probability that, as a
                                                                                                                                 result of
                                                                                                                                   (a) activities related to the construction, use or demolition of
                                                                                                                                       the building or facility,
                                                                                                                                  (b) the condition of specific elements of the building or facility,
                                                                                                                                   (c) the design or construction of specific elements of the facility
                                                                                                                                       related to certain hazards, or
                                                                                                                                  (d) inadequate built-in protection measures for the current or
                                                                                                                                       intended use of the building,
                                                                                                                                 a person in or adjacent to the building or facility will be exposed
                                                                                                                                 to an unacceptable risk of injury due to fire. The risks of injury




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                                                                                                                                 due to fire addressed in this Code are those caused by—
                                                                                                                                  OS1.1 – fire or explosion occurring
                                                                                                                                  OS1.2 – fire or explosion impacting areas beyond its point
                                                                                                                                          of origin
                                                                                                                                  OS1.3 – collapse of physical elements due to a fire or
                                                                                                                                          explosion
                                                                                                                                  OS1.4 – fire safety systems failing to function as expected
                                                                                                                                  OS1.5 – persons being delayed in or impeded from moving
                                                                                                                                          to a safe place during a fire emergency
                                                                                                                          OS3    Safety in Use
                                                                                                                                 An objective of this Code is to limit the probability that, as a
                                                                                                                                 result of
                                                                                                                                   (a) activities related to the construction, use or demolition of
                                                                                                                                       the building or facility,
                                                                                                                                  (b) the condition of specific elements of the building or facility,
                                                                                                                                   (c) the design or construction of specific elements of the facility
                                                                                                                                       related to certain hazards, or
                                                                                                                                  (d) inadequate built-in protection measures for the current or
                                                                                                                                       intended use of the building,
                                                                                                                                 a person in or adjacent to the building or facility will be exposed to
                                                                                                                                 an unacceptable risk of injury due to hazards. The risks of injury
                                                                                                                                 due to hazards addressed in this Code are those caused by—
                                                                                                                                  OS3.1 – tripping, slipping, falling, contact, drowning or
                                                                                                                                          collision
                                                                                                                                  OS3.2 – contact with hot surfaces or substances
                                                                                                                                  OS3.3 – contact with energized equipment
                                                                                                                                  OS3.4 – exposure to hazardous substances
                                                                                                                                  OS3.7 – persons being delayed in or impeded from
                                                                                                                                          moving to a safe place during an emergency (see
                                                                                                                                          Note A-2.2.1.1.(1))

                                                                                                                     OH   Health
                                                                                                                          An objective of this Code is to limit the probability that, as a result of
                                                                                                                          specific circumstances related to the building or facility, a person will be
                                                                                                                          exposed to an unacceptable risk of illness.
                                                                                                                          OH5 Hazardous Substances Containment
                                                                                                                              An objective of this Code is to limit the probability that, as a
                                                                                                                              result of
                                                                                                                                (a) activities related to the construction, use or demolition of
                                                                                                                                    the building or facility,
                                                                                                                               (b) the condition of specific elements of the building or facility,
                                                                                                                                (c) the design or construction of specific elements of the facility
                                                                                                                                    related to certain hazards, or
                                                                                                                               (d) inadequate built-in protection measures for the current or
                                                                                                                                    intended use of the building,
                                                                                                                              the public will be exposed to an unacceptable risk of illness due to
                                                                                                                              the release of hazardous substances from the building or facility.


                                                                                                    2-2 Division A                                                               National Fire Code of Canada 2020
                                                                                                    Division A                                                                                                    2.2.1.1.

                                                                                                                              OP        Fire Protection of Buildings and Facilities
                                                                                                                                        An objective of this Code is to limit the probability that, as a result of
                                                                                                                                        specific circumstances related to the building or facility, the building or
                                                                                                                                        facility will be exposed to an unacceptable risk of damage due to fire.
                                                                                                                                        OP1    Fire Protection of the Building or Facility
                                                                                                                                               An objective of this Code is to limit the probability that, as a
                                                                                                                                               result of
                                                                                                                                                 (a) activities related to the construction, use or demolition of
                                                                                                                                                     the building or facility,
                                                                                                                                                (b) the condition of specific elements of the building or facility,
                                                                                                                                                 (c) the design or construction of specific elements of the facility




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                                                                                                                                                     related to certain hazards, or
                                                                                                                                                (d) inadequate built-in protection measures for the current or
                                                                                                                                                     intended use of the building,
                                                                                                                                               the building or facility will be exposed to an unacceptable risk of
                                                                                                                                               damage due to fire. The risks of damage due to fire addressed in
                                                                                                                                               this Code are those caused by—
                                                                                                                                                OP1.1 – fire or explosion occurring
                                                                                                                                                OP1.2 – fire or explosion impacting areas beyond its point
                                                                                                                                                        of origin
                                                                                                                                                OP1.3 – collapse of physical elements due to a fire or
                                                                                                                                                        explosion
                                                                                                                                                OP1.4 – fire safety systems failing to function as expected
                                                                                                                                        OP3    Protection of Adjacent Buildings or Facilities from Fire
                                                                                                                                               An objective of this Code is to limit the probability that, as a
                                                                                                                                               result of
                                                                                                                                                 (a) activities related to the construction, use or demolition of
                                                                                                                                                     the building or facility,
                                                                                                                                                 (b) the condition of specific elements of the building or facility,
                                                                                                                                                 (c) the design or construction of specific elements of the facility
                                                                                                                                                     related to certain hazards, or
                                                                                                                                                (d) inadequate built-in protection measures for the current or
                                                                                                                                                     intended use of the building,
                                                                                                                                               adjacent buildings or facilities will be exposed to an unacceptable
                                                                                                                                               risk of damage due to fire. The risks of damage to adjacent
                                                                                                                                               buildings and facilities due to fire addressed in this Code are
                                                                                                                                               those caused by—
                                                                                                                                                OP3.1 – fire or explosion impacting areas beyond the building
                                                                                                                                                        or facility of origin




                                                                                                    National Fire Code of Canada 2020                                                                            Division A 2-3
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2-4 Division A




National Fire Code of Canada 2020
                                                                                                    Division A



                                                                                                    Notes to Part 2
                                                                                                    Objectives




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                                                                                                    A-2.2.1.1.(1)       Objectives.

                                                                                                        Listing of objectives
                                                                                                        Any gaps in the numbering sequence of the objectives are due to the fact that there is a master list of
                                                                                                        objectives covering the four principal National Code Documents—the National Building Code, the
                                                                                                        National Energy Code for Buildings, the National Fire Code and the National Plumbing Code—but not all
                                                                                                        objectives are pertinent to all Codes.

                                                                                                        The building or facility
                                                                                                        Where the term “the building or facility” is used in the wording of the objectives, it refers to the building or
                                                                                                        facility for which compliance with the National Fire Code is being assessed.

                                                                                                        Emergency
                                                                                                        The term “emergency”—in the context of safety in buildings or facilities—is often equated to the term “fire
                                                                                                        emergency;” however, the wording of objective OS3.7 makes it clear that the Code addresses any type of
                                                                                                        emergency that would require the rapid evacuation of the building or facility, such as a bomb threat
                                                                                                        or the presence of intruders.

                                                                                                        Fire Safety
                                                                                                        In the definition of Objective OS1, Fire Safety, the term “person” refers to any individual in or adjacent
                                                                                                        to the building or facility, including the occupants, the public, and emergency responders including
                                                                                                        firefighters when performing their duties.
                                                                                                        Certain technical requirements in the National Model Codes are intended to address the safety of
                                                                                                        emergency responders, including firefighters, when performing their duties.

                                                                                                    These Notes are included for explanatory purposes only and do not form part of the requirements. The number
                                                                                                    that introduces each Note corresponds to the applicable requirement in this Part.




                                                                                                    National Fire Code of Canada 2020                                                                             Division A 2-5
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2-6 Division A




National Fire Code of Canada 2020
                                                                                                    Division A



                                                                                                    Part 3
                                                                                                    Functional Statements




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                                                                                                      3.1.          Application
                                                                                                      3.1.1.        Application ........................................ 3-1

                                                                                                      3.2.          Functional Statements
                                                                                                      3.2.1.        Functional Statements ..................... 3-1

                                                                                                                    Notes to Part 3 .................. 3-3




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National Fire Code of Canada 2020
                                                                                                    Division A



                                                                                                    Part 3
                                                                                                    Functional Statements




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                                                                                                    Section 3.1. Application
                                                                                                    3.1.1.            Application
                                                                                                    3.1.1.1.          Application
                                                                                                                         1) This Part applies to all buildings and facilities covered in this Code. (See
                                                                                                                      Article 1.1.1.1.)

                                                                                                    3.1.1.2.          Application of Functional Statements
                                                                                                                         1) The functional statements described in this Part apply
                                                                                                                         a) to all buildings and facilities covered in this Code (see Article 1.1.1.1.), and
                                                                                                                         b) only to the extent that they relate to compliance with this Code as required
                                                                                                                            in Article 1.2.1.1.


                                                                                                    Section 3.2. Functional Statements
                                                                                                    3.2.1.            Functional Statements
                                                                                                    3.2.1.1.          Functional Statements
                                                                                                                         1) The objectives of this Code are achieved by measures, such as those described in
                                                                                                                      the acceptable solutions in Division B, that are intended to allow the building or facility
                                                                                                                      or its elements to perform the following functions (see Note A-3.2.1.1.(1)):
                                                                                                                               F01 To minimize the risk of accidental ignition.
                                                                                                                               F02 To limit the severity and effects of fire or explosions.
                                                                                                                               F03 To retard the effects of fire on areas beyond its point of origin.
                                                                                                                               F04 To retard failure or collapse due to the effects of fire.
                                                                                                                               F05 To retard the effects of fire on emergency egress facilities.
                                                                                                                               F06 To retard the effects of fire on facilities for notification,
                                                                                                                                    suppression and emergency response.

                                                                                                                              F10       To facilitate the timely movement of persons to a safe place in
                                                                                                                                        an emergency.
                                                                                                                              F11       To notify persons, in a timely manner, of the need to take action
                                                                                                                                        in an emergency.
                                                                                                                              F12       To facilitate emergency response.
                                                                                                                              F13       To notify emergency responders, in a timely manner, of the need
                                                                                                                                        to take action in an emergency.

                                                                                                                              F20       To support and withstand expected loads and forces.
                                                                                                                              F21       To limit or accommodate dimensional change.


                                                                                                    National Fire Code of Canada 2020                                                                          Division A 3-1
                                                                                                    3.2.1.1.                                                                                    Division A

                                                                                                                     F22   To limit movement under expected loads and forces.

                                                                                                                     F30   To minimize the risk of injury to persons as a result of tripping,
                                                                                                                           slipping, falling, contact, drowning or collision.
                                                                                                                     F31   To minimize the risk of injury to persons as a result of contact
                                                                                                                           with hot surfaces or substances.
                                                                                                                     F32   To minimize the risk of injury to persons as a result of contact
                                                                                                                           with energized equipment.
                                                                                                                     F34   To resist or discourage unwanted access or entry.
                                                                                                                     F36   To minimize the risk that persons will be trapped in confined




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                                                                                                                           spaces.

                                                                                                                     F40   To limit the level of contaminants.
                                                                                                                     F43   To minimize the risk of release of hazardous substances.
                                                                                                                     F44   To limit the spread of hazardous substances beyond their point
                                                                                                                           of release.

                                                                                                                     F51   To maintain appropriate air and surface temperatures.
                                                                                                                     F52   To maintain appropriate relative humidity.
                                                                                                                     F53   To maintain appropriate indoor/outdoor air pressure differences.

                                                                                                                     F80   To resist deterioration resulting from expected service conditions.
                                                                                                                     F81   To minimize the risk of malfunction, interference, damage,
                                                                                                                           tampering, lack of use or misuse.
                                                                                                                     F82   To minimize the risk of inadequate performance due to improper
                                                                                                                           maintenance or lack of maintenance.




                                                                                                    3-2 Division A                                                               National Fire Code of Canada 2020
                                                                                                    Division A



                                                                                                    Notes to Part 3
                                                                                                    Functional Statements




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                                                                                                    A-3.2.1.1.(1) Listing of Functional Statements. The numbered functional statements are grouped
                                                                                                    according to functions that deal with closely related subjects. For example, the first group deals with fire
                                                                                                    risks, the second group deals with emergency egress and response, etc. There may be gaps in the numbering
                                                                                                    sequence for the following reasons:
                                                                                                       • Each group has unused numbers which allows for the possible future creation of additional functional
                                                                                                          statements within any one group.
                                                                                                       • There is a master list of functional statements covering the four principal National Code Documents—the
                                                                                                          National Building Code, the National Energy Code for Buildings, the National Fire Code and the National
                                                                                                          Plumbing Code—but not all functional statements are pertinent to all Codes.

                                                                                                    These Notes are included for explanatory purposes only and do not form part of the requirements. The number
                                                                                                    that introduces each Note corresponds to the applicable requirement in this Part.




                                                                                                    National Fire Code of Canada 2020                                                                             Division A 3-3
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3-4 Division A




National Fire Code of Canada 2020
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                                                                                          Division B
                                                                   Acceptable Solutions
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                                                                                                    Division B



                                                                                                    Part 1
                                                                                                    General




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                                                                                                      1.1.          General
                                                                                                      1.1.1.        Application ........................................ 1-1
                                                                                                      1.1.2.        Objectives and Functional
                                                                                                                    Statements ........................................ 1-1

                                                                                                      1.2.          Terms and Abbreviations
                                                                                                      1.2.1.        Definitions of Words and Phrases .. 1-1
                                                                                                      1.2.2.        Symbols and Other Abbreviations .. 1-2

                                                                                                      1.3.          Referenced Documents
                                                                                                                    and Organizations
                                                                                                      1.3.1.        Referenced Documents ................... 1-2
                                                                                                      1.3.2.        Organizations ................................. 1-12

                                                                                                                    Notes to Part 1 ................ 1-15




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National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Part 1
                                                                                                    General




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                                                                                                    Section 1.1. General
                                                                                                    1.1.1.            Application

                                                                                                    1.1.1.1.          Application

                                                                                                                         1) This Part applies to all buildings and facilities covered in this Code. (See
                                                                                                                      Article 1.1.1.1. of Division A.)

                                                                                                    1.1.2.            Objectives and Functional Statements

                                                                                                    1.1.2.1.          Attribution to Acceptable Solutions

                                                                                                                         1) For the purposes of compliance with this Code as required in
                                                                                                                      Clause 1.2.1.1.(1)(b) of Division A, the objectives and functional statements
                                                                                                                      attributed to the acceptable solutions in Division B shall be the objectives and
                                                                                                                      functional statements identified in Sections 2.15., 3.4., 4.13., 5.7., 6.9. and 7.4. (See
                                                                                                                      Note A-1.1.2.1.(1).)


                                                                                                    Section 1.2. Terms and Abbreviations
                                                                                                    1.2.1.            Definitions of Words and Phrases

                                                                                                    1.2.1.1.          Non-defined Terms

                                                                                                                         1) Words and phrases used in Division B that are not included in the list of
                                                                                                                      definitions in Article 1.4.1.2. of Division A shall have the meanings that are commonly
                                                                                                                      assigned to them in the context in which they are used, taking into account the
                                                                                                                      specialized use of terms by the various trades and professions to which the terminology
                                                                                                                      applies.

                                                                                                                         2) Where objectives and functional statements are referred to in Division B, they
                                                                                                                      shall be the objectives and functional statements described in Parts 2 and 3 of Division
                                                                                                                      A.

                                                                                                                         3) Where acceptable solutions are referred to in Division B, they shall be the
                                                                                                                      provisions stated in Parts 2 to 7.

                                                                                                    1.2.1.2.          Defined Terms

                                                                                                                          1) The words and terms in italics in Division B shall have the meanings assigned
                                                                                                                      to them in Article 1.4.1.2. of Division A.


                                                                                                    National Fire Code of Canada 2020                                                                             Division B 1-1
                                                                                                    1.2.2.1.                                                                                                                 Division B

                                                                                                    1.2.2.              Symbols and Other Abbreviations
                                                                                                    1.2.2.1.            Symbols and Other Abbreviations
                                                                                                                           1) The symbols and other abbreviations in Division B shall have the meanings
                                                                                                                        assigned to them in Article 1.4.2.1. of Division A and Article 1.3.2.1.


                                                                                                    Section 1.3. Referenced Documents and
                                                                                                    Organizations




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                                                                                                    1.3.1.              Referenced Documents
                                                                                                    1.3.1.1.            Effective Date
                                                                                                                           1) Unless otherwise specified herein, the documents referenced in this Code
                                                                                                                        shall include all amendments, revisions, reaffirmations, reapprovals, addenda and
                                                                                                                        supplements effective to 15 July 2019.

                                                                                                    1.3.1.2.            Applicable Editions
                                                                                                                           1) Where documents are referenced in this Code, they shall be the editions
                                                                                                                        designated in Table 1.3.1.2.

                                                                                                                                                             Table 1.3.1.2.
                                                                                                                                     Documents Referenced in the National Fire Code of Canada 2020 (1)
                                                                                                                                                   Forming Part of Sentence 1.3.1.2.(1)

                                                                                                     Issuing Agency        Document Number (2)                              Title of Document                                Code Reference
                                                                                                    ACGIH             28th Edition                  Industrial Ventilation: A Manual of Recommended Practice for         A-3.2.7.3.(1)(b)
                                                                                                                                                    Design
                                                                                                    API               SPEC 5L (2012)                Line Pipe                                                            4.5.2.1.(4)
                                                                                                    API               SPEC 12B (2008)               Specification for Bolted Tanks for Storage of Production Liquids     4.3.1.2.(1)
                                                                                                                                                                                                                         A-4.3.1.2.(2)(b)
                                                                                                    API               SPEC 12D (2008)               Specification for Field Welded Tanks for Storage of Production       4.3.1.2.(1)
                                                                                                                                                    Liquids                                                              A-4.3.1.2.(2)(b)
                                                                                                    API               SPEC 12F (2008)               Specification for Shop Welded Tanks for Storage of Production        4.3.1.2.(1)
                                                                                                                                                    Liquids                                                              A-4.3.1.2.(2)(b)
                                                                                                    API               STD 620 (2013)                Design and Construction of Large, Welded, Low-Pressure Storage 4.3.1.3.(1)
                                                                                                                                                    Tanks
                                                                                                    API               STD 650 (2013)                Welded Tanks for Oil Storage                                         4.3.1.2.(1)
                                                                                                    API               STD 653 (2009)                Tank Inspection, Repair, Alteration, and Reconstruction              4.3.1.10.(2)
                                                                                                                                                                                                                         Table 4.4.1.2.-B
                                                                                                    API               STD 1104 (2013)               Welding of Pipelines and Related Facilities                          4.5.5.2.(1)
                                                                                                                                                                                                                         A-4.5.10.7.(6)
                                                                                                    API               RP 1604 (1996)                Closure of Underground Petroleum Storage Tanks                       A-4.3.16.1.(1)
                                                                                                    API               STD 2000 (2009)               Venting Atmospheric and Low-Pressure Storage Tanks                   4.3.1.2.(2)
                                                                                                                                                                                                                         4.3.4.1.(1)
                                                                                                                                                                                                                         A-4.3.13.10.(1)
                                                                                                    API               RP 2003 (2008)                Protection Against Ignitions Arising Out of Static, Lightning, and   A-4.7.4.5.
                                                                                                                                                    Stray Currents
                                                                                                    API               RP 2009 (2002)                Safe Welding, Cutting and Hot Work Practices in the Petroleum        A-5.2.3.4.(1)(b)
                                                                                                                                                    and Petrochemical Industries
                                                                                                    API               STD 2015 (2001)               Requirements for Safe Entry and Cleaning of Petroleum Storage A-5.2.3.4.(1)(b)
                                                                                                                                                    Tanks, Planning and Managing Tank Entry From Decommissioning
                                                                                                                                                    Through Recommissioning


                                                                                                    1-2 Division B                                                                                            National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                        1.3.1.2.

                                                                                                                                                        Table 1.3.1.2. (Continued)

                                                                                                     Issuing Agency        Document Number (2)                             Title of Document                                 Code Reference
                                                                                                     API              RP 2200 (2010)               Repairing Crude Oil, Liquefied Petroleum Gas, and Product            A-4.5.10.7.(6)
                                                                                                                                                   Pipelines
                                                                                                     API              RP 2201 (2003)               Safe Hot Tapping Practices in the Petroleum and Petrochemical        A-4.5.10.7.(6)
                                                                                                                                                   Industries                                                           A-5.2.3.4.(1)(b)
                                                                                                     API              RP 2207 (2007)               Preparing Tank Bottoms for Hot Work                                  A-5.2.3.4.(1)(b)
                                                                                                     ARPM             IP-2-2014                    Hose Handbook                                                        A-4.8.8.1.(1)(a)
                                                                                                     ASABE            ANSI/ASABE AD11684:1995      Tractors, machinery for agricultural and forestry, powered lawn      A-2.14.2.




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                                                                                                                                                   and garden equipment — Safety signs and hazard pictorials —
                                                                                                                                                   General principles
                                                                                                     ASME/CSA         ASME A17.1-2016/CSA B44-16   Safety Code for Elevators and Escalators                             7.2.2.1.(2)
                                                                                                     ASME             BPVC-2017                    Boiler and Pressure Vessel Code                                      4.3.1.3.(1)
                                                                                                                                                                                                                        4.5.9.5.(2)
                                                                                                                                                                                                                        4.5.9.6.(1)
                                                                                                     ASME             B16.5-2017                   Pipe Flanges and Flanged Fittings: NPS ½ through NPS 24              4.5.5.3.(1)
                                                                                                                                                   Metric/Inch Standard
                                                                                                     ASME             B31.3-2016                   Process Piping                                                       4.5.2.1.(5)
                                                                                                     ASTM             A53/A53M-18                  Standard Specification for Pipe, Steel, Black and Hot-Dipped,        4.5.2.1.(4)
                                                                                                                                                   Zinc-Coated, Welded and Seamless
                                                                                                     ASTM             A193/A193M-17                Standard Specification for Alloy-Steel and Stainless Steel Bolting   4.5.5.4.(1)
                                                                                                                                                   for High Temperature or High Pressure Service and Other Special
                                                                                                                                                   Purpose Applications
                                                                                                     ASTM             D5/D5M-19                    Standard Test Method for Penetration of Bituminous Materials         A-4.1.3.1.
                                                                                                     ASTM             D56-16a                      Standard Test Method for Flash Point by Tag Closed Cup Tester        4.1.3.1.(1)
                                                                                                     ASTM             D92-18                       Standard Test Method for Flash and Fire Points by Cleveland Open A-4.1.2.2.
                                                                                                                                                   Cup Tester
                                                                                                     ASTM             D93-18                       Standard Test Methods for Flash Point by Pensky-Martens Closed       4.1.3.1.(2)
                                                                                                                                                   Cup Tester
                                                                                                     ASTM             D323-15a                     Standard Test Method for Vapor Pressure of Petroleum Products        1.4.1.2.(1) (3)
                                                                                                                                                   (Reid Method)
                                                                                                     ASTM             D3278-96                     Standard Test Methods for Flash Point of Liquids by Small Scale      4.1.3.1.(4)
                                                                                                                                                   Closed-Cup Apparatus                                                 A-4.1.3.1.
                                                                                                     ASTM             D3828-16a                    Standard Test Methods for Flash Point by Small Scale Closed Cup 4.1.3.1.(3)
                                                                                                                                                   Tester
                                                                                                     ASTM             D4359-90                     Standard Test Method for Determining Whether a Material Is a         A-4.1.3.1.
                                                                                                                                                   Liquid or a Solid
                                                                                                     CCBFC            NRCC 30619                   National Building Code of Canada 1990                                A-2.1.2.1.(1)
                                                                                                     CCBFC            NRCC 40383                   User's Guide – NBC 1995, Fire Protection, Occupant Safety and        7.1.1.2.(2)
                                                                                                                                                   Accessibility (Part 3)                                               7.2.3.1.(1)
                                                                                                                                                                                                                        7.2.3.3.(1)
                                                                                                                                                                                                                        7.3.2.1.(1)
                                                                                                                                                                                                                        7.3.3.1.(1)
                                                                                                                                                                                                                        7.3.4.1.(1)
                                                                                                                                                                                                                        7.3.5.1.(1)
                                                                                                                                                                                                                        7.3.6.1.(1)
                                                                                                                                                                                                                        7.3.7.1.(1)
                                                                                                                                                                                                                        7.3.8.1.(1)
                                                                                                                                                                                                                        7.3.9.1.(1)
                                                                                                                                                                                                                        7.3.10.1.(1)
                                                                                                                                                                                                                        7.3.11.1.(1)
                                                                                                                                                                                                                        7.3.12.1.(1)
                                                                                                                                                                                                                        7.3.13.1.(1)
                                                                                                                                                                                                                        7.3.14.1.(1)
                                                                                                                                                                                                                        7.3.15.1.(1)



                                                                                                    National Fire Code of Canada 2020                                                                                                Division B 1-3
                                                                                                    1.3.1.2.                                                                                            Division B

                                                                                                                                                    Table 1.3.1.2. (Continued)

                                                                                                     Issuing Agency       Document Number (2)                         Title of Document                  Code Reference
                                                                                                    CCBFC             NRCC 47666                National Building Code of Canada 2005               A-2.1.3.1.(1)
                                                                                                    CCBFC             NRCC-CONST-56435E         National Building Code of Canada 2020               1.3.3.2.(1) (3)
                                                                                                                                                                                                    1.4.1.2.(1) (3)
                                                                                                                                                                                                    A-1.1.1.1.(1) (3)
                                                                                                                                                                                                    A-1.4.1.2.(1) (3)
                                                                                                                                                                                                    A-2.2.1.1.(1) (3)
                                                                                                                                                                                                    A-3.2.1.1.(1) (3)
                                                                                                                                                                                                    2.1.2.1.(1)




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                                                                                                                                                                                                    2.1.3.1.(1)
                                                                                                                                                                                                    2.1.3.2.(1)
                                                                                                                                                                                                    2.1.3.3.(1)
                                                                                                                                                                                                    2.1.3.4.(1)
                                                                                                                                                                                                    2.1.3.7.(1)
                                                                                                                                                                                                    2.2.1.1.(1)
                                                                                                                                                                                                    2.2.1.1.(2)
                                                                                                                                                                                                    2.2.1.1.(3)
                                                                                                                                                                                                    2.2.2.1.(1)
                                                                                                                                                                                                    2.2.2.1.(2)
                                                                                                                                                                                                    2.2.2.4.(2)
                                                                                                                                                                                                    2.2.3.1.(1)
                                                                                                                                                                                                    2.3.1.1.(1)
                                                                                                                                                                                                    2.3.1.2.(1) (4)
                                                                                                                                                                                                    2.3.1.4.(1)
                                                                                                                                                                                                    2.4.1.2.(1)
                                                                                                                                                                                                    2.5.1.1.(1)
                                                                                                                                                                                                    2.6.1.1.(1)
                                                                                                                                                                                                    2.6.1.5.(1)
                                                                                                                                                                                                    2.6.1.9.(1)
                                                                                                                                                                                                    2.6.2.1.(1)
                                                                                                                                                                                                    2.7.1.1.(1)
                                                                                                                                                                                                    2.7.1.2.(1)
                                                                                                                                                                                                    2.7.1.4.(2)
                                                                                                                                                                                                    2.7.3.1.(1)
                                                                                                                                                                                                    2.8.1.1.(1)
                                                                                                                                                                                                    2.8.2.2.(1)
                                                                                                                                                                                                    2.8.2.12.(2)
                                                                                                                                                                                                    2.8.3.1.(1)
                                                                                                                                                                                                    2.8.3.2.(1)
                                                                                                                                                                                                    2.9.1.1.(1)
                                                                                                                                                                                                    2.9.3.6.(1)
                                                                                                                                                                                                    2.10.1.1.(1)
                                                                                                                                                                                                    2.11.1.1.(1)
                                                                                                                                                                                                    2.13.2.1.(1)
                                                                                                                                                                                                    2.14.3.1.(1)
                                                                                                                                                                                                    2.14.3.2.(1)
                                                                                                                                                                                                    2.14.3.2.(2)
                                                                                                                                                                                                    A-2.1.3.1.(1)
                                                                                                                                                                                                    A-2.1.3.4.(1)
                                                                                                                                                                                                    A-2.7.1.3.(1)
                                                                                                                                                                                                    A-2.7.1.4.(2)
                                                                                                                                                                                                    A-2.7.3.1.(1)
                                                                                                                                                                                                    A-2.8.1.2.(2)
                                                                                                                                                                                                    A-2.9.3.5.(1)
                                                                                                                                                                                                    3.1.4.1.(1)
                                                                                                                                                                                                    3.2.4.2.(1)
                                                                                                                                                                                                    3.2.6.2.(1)
                                                                                                                                                                                                    3.2.7.5.(6)
                                                                                                                                                                                                    3.2.7.5.(7)
                                                                                                                                                                                                    3.2.7.8.(1)
                                                                                                                                                                                                    3.2.7.12.(3)




                                                                                                    1-4 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                  1.3.1.2.

                                                                                                                                                    Table 1.3.1.2. (Continued)

                                                                                                     Issuing Agency       Document Number (2)                         Title of Document                  Code Reference
                                                                                                                                                National Building Code of Canada 2020 (continued)   3.2.8.2.(1)
                                                                                                                                                                                                    3.2.8.3.(1)
                                                                                                                                                                                                    3.2.9.2.(1)
                                                                                                                                                                                                    3.2.9.2.(2)
                                                                                                                                                                                                    3.2.9.2.(3)
                                                                                                                                                                                                    3.2.9.2.(4)
                                                                                                                                                                                                    3.2.9.2.(5)
                                                                                                                                                                                                    3.3.2.5.(1)
                                                                                                                                                                                                    A-3.2.2.3.(5)




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                                                                                                    A-3.2.7.9.(1)
                                                                                                                                                                                                    A-3.2.7.12.(3)
                                                                                                                                                                                                    A-3.2.9.2.(5)
                                                                                                                                                                                                    4.1.7.1.(1)
                                                                                                                                                                                                    4.2.4.3.(2)
                                                                                                                                                                                                    4.2.7.5.(2)
                                                                                                                                                                                                    4.2.9.5.(1)
                                                                                                                                                                                                    4.2.11.3.(1)
                                                                                                                                                                                                    4.2.12.1.(1)
                                                                                                                                                                                                    4.3.2.4.(2)
                                                                                                                                                                                                    4.3.3.2.(1)
                                                                                                                                                                                                    4.5.6.10.(2)
                                                                                                                                                                                                    4.5.8.2.(3)
                                                                                                                                                                                                    4.6.3.3.(2)
                                                                                                                                                                                                    4.6.3.3.(3)
                                                                                                                                                                                                    4.9.3.2.(1)
                                                                                                                                                                                                    A-4.1.7.1.(1)
                                                                                                                                                                                                    A-4.2.7.5.(2)
                                                                                                                                                                                                    5.1.3.1.(1)
                                                                                                                                                                                                    5.3.3.4.(1)
                                                                                                                                                                                                    5.5.2.2.(1)
                                                                                                                                                                                                    5.5.4.1.(1)
                                                                                                                                                                                                    5.5.4.2.(1)
                                                                                                                                                                                                    5.5.4.3.(1)
                                                                                                                                                                                                    5.5.4.4.(1)
                                                                                                                                                                                                    5.6.1.6.(1)
                                                                                                                                                                                                    5.6.1.6.(2)
                                                                                                                                                                                                    5.6.1.8.(2)
                                                                                                                                                                                                    5.6.1.20.(1)
                                                                                                                                                                                                    5.6.3.1.(1)
                                                                                                                                                                                                    5.6.3.4.(2)
                                                                                                                                                                                                    5.6.3.5.(1)
                                                                                                                                                                                                    5.6.3.7.(1)
                                                                                                                                                                                                    5.6.3.7.(3)
                                                                                                                                                                                                    5.6.3.8.
                                                                                                                                                                                                    5.6.4.1.(1)
                                                                                                                                                                                                    5.6.4.3.(1)
                                                                                                                                                                                                    5.6.4.3.(3)
                                                                                                                                                                                                    A-5.6.1.2.(1)
                                                                                                                                                                                                    A-5.6.1.4.(4)
                                                                                                                                                                                                    A-5.6.1.6.
                                                                                                                                                                                                    A-5.6.1.8.
                                                                                                                                                                                                    A-6.1.1.2.(1)
                                                                                                                                                                                                    7.1.1.1.(1)
                                                                                                                                                                                                    7.1.1.2.(1)
                                                                                                                                                                                                    7.1.1.2.(2)
                                                                                                                                                                                                    7.1.1.4.(2)
                                                                                                     CCBFC            NRCC-CONST-56436E         National Plumbing Code of Canada 2020               A-2.2.1.1.(1) (3)
                                                                                                                                                                                                    A-3.2.1.1.(1) (3)
                                                                                                                                                                                                    A-4.1.6.2.(2)
                                                                                                     CCBFC            NRCC-CONST-56438E         National Energy Code of Canada for Buildings 2020   A-2.2.1.1.(1) (3)
                                                                                                                                                                                                    A-3.2.1.1.(1) (3)




                                                                                                    National Fire Code of Canada 2020                                                                          Division B 1-5
                                                                                                    1.3.1.2.                                                                                                               Division B

                                                                                                                                                        Table 1.3.1.2. (Continued)

                                                                                                     Issuing Agency          Document Number (2)                            Title of Document                              Code Reference
                                                                                                    CCME              PN 1326 (2003)               Environmental Code of Practice for Aboveground and Underground A-4.3.16.1.(1)
                                                                                                                                                   Storage Tank Systems Containing Petroleum and Allied Petroleum A-4.4.2.1.(3)
                                                                                                                                                   Products
                                                                                                    CFA               1990                         Using the Canadian Fuels Colour-Symbol System to Mark               4.3.1.7.(1)
                                                                                                                                                   Equipment and Vehicles For Product Identification                   4.5.4.1.(3)
                                                                                                                                                                                                                       4.5.7.6.(1)
                                                                                                    CGA               P-1 (2008)                   Standard for Safe Handling of Compressed Gases in Containers        A-3.1.1.4.(1)(a)




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                                                                                                    CGSB              CAN2-4.162-M80 (formerly     Hospital Textiles – Flammability Performance Requirements           2.3.2.3.(1)
                                                                                                                      CAN/CGSB-4.162-M80)
                                                                                                    CNSC              S.C. 1997, c. 9              Nuclear Safety and Control Act                                      3.1.1.2.(1)
                                                                                                    CSA               B51:19                       Boiler, pressure vessel, and pressure piping code                   4.3.1.3.(2)
                                                                                                    CSA               B108-18                      Natural gas refuelling stations installation code                   4.6.1.1.(2)
                                                                                                    CSA               B139 Series:19               Installation code for oil-burning equipment                         4.1.1.1.(3)
                                                                                                                                                                                                                       4.3.13.6.(1)
                                                                                                                                                                                                                       A-4.1.1.1.(3)(b)
                                                                                                                                                                                                                       A-4.3.13.4.(1)(b)
                                                                                                                                                                                                                       5.6.1.10.(1)
                                                                                                    CSA               B149.1-15                    Natural gas and propane installation code                           3.1.1.4.(2)
                                                                                                                                                                                                                       3.1.1.4.(3)
                                                                                                                                                                                                                       4.6.1.1.(2)
                                                                                                                                                                                                                       5.6.1.10.(1)
                                                                                                    CSA               B149.2-15                    Propane storage and handling code                                   3.1.1.4.(2)
                                                                                                                                                                                                                       3.2.8.2.(3)
                                                                                                                                                                                                                       4.6.1.1.(2)
                                                                                                    CSA               B306-M1977                   Portable Fuel Tanks for Marine Use                                  4.2.3.1.(1)
                                                                                                    CSA               B346-M1980                   Power-Operated Dispensing Devices for Flammable Liquids             4.6.3.1.(1)
                                                                                                    CSA               B376-M1980                   Portable Containers for Gasoline and Other Petroleum Fuels          4.2.3.1.(1)
                                                                                                    CSA               B620-14                      Highway tanks and TC portable tanks for the transportation of       4.2.3.1.(1)
                                                                                                                                                   dangerous goods
                                                                                                    CSA               C22.1-18                     Canadian Electrical Code, Part I (24th edition), Safety Standard    2.14.1.1.(1)
                                                                                                                                                   for Electrical Installations                                        4.1.4.1.(1)
                                                                                                                                                                                                                       4.1.4.1.(2)
                                                                                                                                                                                                                       A-4.10.3.3.(1)
                                                                                                                                                                                                                       5.1.2.1.(1)
                                                                                                                                                                                                                       5.1.2.2.(1)
                                                                                                                                                                                                                       5.3.1.2.(2)
                                                                                                                                                                                                                       5.3.1.2.(3)
                                                                                                                                                                                                                       5.3.1.10.(2)
                                                                                                                                                                                                                       5.5.3.4.(1)
                                                                                                                                                                                                                       5.6.1.9.(3)
                                                                                                                                                                                                                       A-5.1.2.1.(1)
                                                                                                                                                                                                                       A-5.5.3.4.(1)
                                                                                                    CSA               CAN/CSA-C22.2 No.            Safety requirements for electrical equipment for measurement,       A-5.5.3.4.(1)
                                                                                                                      61010-1-12                   control, and laboratory use - Part 1: General requirements
                                                                                                                                                   (Tri-national standard, with UL 61010-1 and ANSI/ISA-61010-1
                                                                                                                                                   (82.02.01)
                                                                                                    CSA               C282-15                      Emergency electrical power supply for buildings                     6.5.1.1.(1)
                                                                                                                                                                                                                       6.5.1.4.(1)
                                                                                                                                                                                                                       A-6.5.1.1.(2)
                                                                                                    CSA               W117.2:19                    Safety in welding, cutting and allied processes                     5.2.1.1.(2)
                                                                                                    CSA               Z32-15                       Electrical safety and essential electrical systems in health care   6.5.1.1.(2)
                                                                                                                                                   facilities                                                          A-6.5.1.1.(2)
                                                                                                    CSA               Z245.1-14                    Steel pipe                                                          4.5.2.1.(4)




                                                                                                    1-6 Division B                                                                                           National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                        1.3.1.2.

                                                                                                                                                            Table 1.3.1.2. (Continued)

                                                                                                     Issuing Agency          Document Number (2)                               Title of Document                            Code Reference
                                                                                                     CSA              PLUS 2203 (3rd. ed. pub. 2001)   Hazardous Locations: A Guide for the Design, Testing,            A-4.1.4.1.(1)
                                                                                                                                                       Construction, and Installation of Equipment in Explosive
                                                                                                                                                       Atmospheres
                                                                                                     EPA              510-B-93-004                     Doing Inventory Control Right for Underground Storage Tanks      A-4.4.2.1.(2)
                                                                                                     EPA              510-B-95-009                     Introduction To Statistical Inventory Reconciliation For         A-4.4.2.1.(4)
                                                                                                                                                       Underground Storage Tanks
                                                                                                     EPA              530/UST-90/007                   Standard Test Procedures For Evaluating Leak Detection Methods: A-4.4.2.1.(4)




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                                                       Statistical Inventory Reconciliation Methods
                                                                                                     EPA              530/UST-90/008                   Standard Test Procedures For Evaluating Leak Detection Methods: A-4.4.2.1.(3)
                                                                                                                                                       Vapor-Phase Out-of-Tank Product Detectors
                                                                                                     EPA              530/UST-90/009                   Standard Test Procedures For Evaluating Leak Detection Methods: A-4.4.2.1.(3)
                                                                                                                                                       Liquid-Phase Out-of-Tank Product Detectors
                                                                                                     FM Global        Data Sheet 7-50 (2014)           Compressed Gases in Portable Cylinders                           A-3.2.8.2.(2)
                                                                                                     FM Global        Data Sheet 7-83 (2015)           Drainage and Containment Systems for Ignitable Liquids           A-4.1.6.1.(1)
                                                                                                     HC               R.S.C. 1985, c. H-3              Hazardous Products Act                                           4.2.3.2.(2)
                                                                                                     HC               S.C. 2002, c. 28                 Pest Control Products Act                                        4.2.3.2.(2)
                                                                                                     HC               SOR/2001-269                     Consumer Chemicals and Containers Regulations, 2001              A-3.2.5.2.(1)
                                                                                                     HC               SOR/2015-17                      Hazardous Products Regulations                                   1.4.1.2.(1) (3)
                                                                                                                                                                                                                        3.1.2.1.(1)
                                                                                                                                                                                                                        3.2.7.1.(3)
                                                                                                                                                                                                                        Table 3.2.7.1.
                                                                                                                                                                                                                        Table 3.2.7.6.
                                                                                                                                                                                                                        3.3.4.1.(3)
                                                                                                                                                                                                                        A-3.2.5.2.(1)
                                                                                                                                                                                                                        A-Table 3.2.7.1.
                                                                                                                                                                                                                        A-3.2.7.6.(3)
                                                                                                                                                                                                                        A-4.2.2.3.(2)
                                                                                                     HC               WHMIS 1988                       Workplace Hazardous Materials Information System (WHMIS)         A-1.4.1.2.(1) (3)
                                                                                                                                                                                                                        3.1.2.1.(1)
                                                                                                                                                                                                                        3.2.7.1.(3)
                                                                                                                                                                                                                        Table 3.2.7.1.
                                                                                                                                                                                                                        Table 3.2.7.6.
                                                                                                                                                                                                                        3.2.7.15.(2)
                                                                                                                                                                                                                        3.3.4.1.(3)
                                                                                                                                                                                                                        A-Table 3.2.7.1.
                                                                                                                                                                                                                        A-3.2.7.1.(3)
                                                                                                                                                                                                                        A-3.2.7.1.(3)(b)
                                                                                                                                                                                                                        A-3.2.7.6.(3)
                                                                                                                                                                                                                        A-3.2.7.13.(1)
                                                                                                                                                                                                                        A-3.2.7.14.(1)
                                                                                                     IMO              2012                             International Maritime Dangerous Goods Code                      3.3.4.8.(1)
                                                                                                     NACE             SP0169-2013                      Control of External Corrosion on Underground or Submerged        4.5.3.1.(1)
                                                                                                                                                       Metallic Piping Systems
                                                                                                     NACE             SP0285-2011-SG                   Corrosion Control of Underground Storage Tank Systems by         4.3.10.1.(1)
                                                                                                                                                       Cathodic Protection
                                                                                                     NFPA             2008                             Fire Protection Handbook, Twentieth Edition                      A-2.4.1.3.(1)
                                                                                                     NFPA             10-2013                          Standard for Portable Fire Extinguishers                         2.1.5.1.(3)
                                                                                                                                                                                                                        6.2.1.1.(1)
                                                                                                     NFPA             11-2016                          Standard for Low-, Medium-, and High-Expansion Foam              2.1.3.5.(3)
                                                                                                                                                                                                                        4.3.2.5.(2)
                                                                                                     NFPA             12-2015                          Standard on Carbon Dioxide Extinguishing Systems                 2.1.3.5.(3)
                                                                                                     NFPA             12A-2015                         Standard on Halon 1301 Fire Extinguishing Systems                2.1.3.5.(3)
                                                                                                                                                                                                                        A-2.1.3.5.(3)(c) and (d)



                                                                                                    National Fire Code of Canada 2020                                                                                             Division B 1-7
                                                                                                    1.3.1.2.                                                                                                            Division B

                                                                                                                                                       Table 1.3.1.2. (Continued)

                                                                                                     Issuing Agency         Document Number (2)                           Title of Document                             Code Reference
                                                                                                    NFPA              12B-1990                    Standard on Halon 1211 Fire Extinguishing Systems                 2.1.3.5.(3)
                                                                                                                                                                                                                    A-2.1.3.5.(3)(c) and (d)
                                                                                                    NFPA              13-2019 (5)                 Standard for the Installation of Sprinkler Systems                A-2.1.3.1.(1)
                                                                                                                                                                                                                    3.2.1.1.(1)
                                                                                                                                                                                                                    3.2.2.4.(3)
                                                                                                                                                                                                                    3.2.3.3.(1)
                                                                                                                                                                                                                    3.2.4.3.(1)
                                                                                                                                                                                                                    3.2.6.3.(4)




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                                                                                                                    A-3.2.1.1.(1)(a)
                                                                                                                                                                                                                    A-3.2.2.4.(3)
                                                                                                                                                                                                                    A-3.2.3.3.(2)
                                                                                                    NFPA              15-2017                     Standard for Water Spray Fixed Systems for Fire Protection        2.1.3.5.(4)
                                                                                                                                                                                                                    4.3.2.5.(2)
                                                                                                                                                                                                                    A-4.1.6.1.(1)
                                                                                                    NFPA              16-2019                     Standard on Installation of Foam-Water Sprinkler and Foam-Water 2.1.3.5.(4)
                                                                                                                                                  Spray Systems
                                                                                                    NFPA              17-2017                     Standard for Dry Chemical Extinguishing Systems                   2.1.3.5.(3)
                                                                                                    NFPA              17A-2017                    Standard for Wet Chemical Extinguishing Systems                   2.1.3.5.(3)
                                                                                                    NFPA              18-2017                     Standard on Wetting Agents                                        2.1.3.5.(5)
                                                                                                    NFPA              25-2017                     Standard for the Inspection, Testing, and Maintenance of          6.4.1.1.(1)
                                                                                                                                                  Water-Based Fire Protection Systems
                                                                                                    NFPA              30-2018                     Flammable and Combustible Liquids Code                            4.2.7.6.(1)
                                                                                                                                                                                                                    A-4.1.1.1.(2)
                                                                                                                                                                                                                    A-4.1.4.1.(1)
                                                                                                                                                                                                                    A-4.1.6.1.(1)
                                                                                                                                                                                                                    A-4.2.7.6.(1)
                                                                                                                                                                                                                    A-4.3.16.1.(1)
                                                                                                    NFPA              30B-2019                    Code for the Manufacture and Storage of Aerosol Products          3.2.5.2.(1)
                                                                                                                                                                                                                    3.2.5.5.(1)
                                                                                                                                                                                                                    A-3.2.5.2.(1)
                                                                                                    NFPA              32-2016                     Standard for Drycleaning Facilities                               5.4.2.1.(1)
                                                                                                    NFPA              33-2018                     Standard for Spray Application Using Flammable or Combustible     5.4.5.2.(1)
                                                                                                                                                  Materials
                                                                                                    NFPA              34-2018                     Standard for Dipping, Coating, and Printing Processes Using       5.4.6.2.(1)
                                                                                                                                                  Flammable or Combustible Liquids
                                                                                                    NFPA              36-2017                     Standard for Solvent Extraction Plants                            A-4.1.1.1.(2)
                                                                                                    NFPA              37-2018                     Standard for the Installation and Use of Stationary Combustion    4.3.13.2.(1)
                                                                                                                                                  Engines and Gas Turbines
                                                                                                    NFPA              51-2018                     Standard for the Design and Installation of Oxygen-Fuel Gas       5.2.2.4.(1)
                                                                                                                                                  Systems for Welding, Cutting, and Allied Processes
                                                                                                    NFPA              55-2020                     Compressed Gases and Cryogenic Fluids Code                        A-3.1.1.4.
                                                                                                                                                                                                                    A-5.5.5.3.(5)(b) and (7)(b)
                                                                                                    NFPA              61-2017                     Standard for the Prevention of Fires and Dust Explosions in       A-5.3.1.3.(2)
                                                                                                                                                  Agricultural and Food Processing Facilities
                                                                                                    NFPA              68-2013                     Standard on Explosion Protection by Deflagration Venting          3.2.8.2.(1)
                                                                                                                                                                                                                    4.3.14.3.(1)
                                                                                                                                                                                                                    4.9.3.1.(1)
                                                                                                                                                                                                                    4.9.4.2.(1)
                                                                                                                                                                                                                    5.3.1.6.(2)
                                                                                                    NFPA              69-2014                     Standard on Explosion Prevention Systems                          4.3.2.5.(2)
                                                                                                                                                                                                                    4.9.4.2.(1)
                                                                                                                                                                                                                    5.3.1.7.(2)
                                                                                                    NFPA              80-2013                     Standard for Fire Doors and Other Opening Protectives             2.2.2.4.(5)



                                                                                                    1-8 Division B                                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                            1.3.1.2.

                                                                                                                                                            Table 1.3.1.2. (Continued)

                                                                                                     Issuing Agency          Document Number (2)                               Title of Document                                Code Reference
                                                                                                     NFPA             80A-2012                          Recommended Practice for Protection of Buildings from Exterior      A-2.4.1.1.(6)
                                                                                                                                                        Fire Exposures
                                                                                                     NFPA             82-2014                           Standard on Incinerators and Waste and Linen Handling Systems       2.6.2.2.(1)
                                                                                                                                                        and Equipment
                                                                                                     NFPA             86-2019                           Standard for Ovens and Furnaces                                     5.4.1.2.(1)
                                                                                                     NFPA             91-2015                           Standard for Exhaust Systems for Air Conveying of Vapors, Gases, 3.2.2.3.(5)
                                                                                                                                                        Mists, and Particulate Solids                                    4.1.7.2.(5)




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                                                                                                                         A-5.3.1.3.(2)
                                                                                                     NFPA             96-2014                           Standard for Ventilation Control and Fire Protection of Commercial 2.6.1.9.(2)
                                                                                                                                                        Cooking Operations
                                                                                                     NFPA             120-2015                          Standard for Fire Prevention and Control in Coal Mines              A-5.3.1.3.(2)
                                                                                                     NFPA             326-2020                          Standard for the Safeguarding of Tanks and Containers for Entry,    A-5.6.1.11.(4)
                                                                                                                                                        Cleaning, or Repair
                                                                                                     NFPA             484-2019                          Standard for Combustible Metals                                     A-5.3.1.3.(2)
                                                                                                     NFPA             497-2017                          Recommended Practice for the Classification of Flammable          A-4.1.4.1.(1)
                                                                                                                                                        Liquids, Gases, or Vapors and of Hazardous (Classified) Locations
                                                                                                                                                        for Electrical Installations in Chemical Process Areas
                                                                                                     NFPA             505-2018                          Fire Safety Standard for Powered Industrial Trucks Including Type   3.1.3.1.(1)
                                                                                                                                                        Designations, Areas of Use, Conversions, Maintenance, and
                                                                                                                                                        Operations
                                                                                                     NFPA             654-2017                          Standard for the Prevention of Fire and Dust Explosions from        A-5.3.1.3.(2)
                                                                                                                                                        the Manufacturing, Processing, and Handling of Combustible
                                                                                                                                                        Particulate Solids
                                                                                                     NFPA             655-2017                          Standard for Prevention of Sulfur Fires and Explosions              A-5.3.1.3.(2)
                                                                                                     NFPA             664-2017                          Standard for the Prevention of Fires and Explosions in Wood         5.3.2.1.(1)
                                                                                                                                                        Processing and Woodworking Facilities                               A-5.3.1.3.(2)
                                                                                                     NFPA             705-2018                          Recommended Practice for a Field Flame Test for Textiles and        2.3.2.2.(1)
                                                                                                                                                        Films                                                               2.9.2.1.(1)
                                                                                                                                                                                                                            A-2.3.2.2.(1)
                                                                                                     NRCan            R.S.C. 1985, c. E-17              Explosives Act                                                      3.1.1.3.(1)
                                                                                                                                                                                                                            A-3.2.9.1.(1)
                                                                                                                                                                                                                            5.1.1.2.(1)
                                                                                                     NRCan            2010                              Display Fireworks Manual                                            5.1.1.3.(1)
                                                                                                     OCIMF            2009                              Guide to Manufacturing and Purchasing Hoses for Offshore            A-4.8.8.1.(1)(a)
                                                                                                                                                        Moorings, 5th Edition
                                                                                                     SFPE             4th Edition                       Handbook of Fire Protection Engineering                             A-4.1.6.1.(1)
                                                                                                     STI/SPFA         SP031-2008                        Standard for Repair of Shop Fabricated Aboveground Tanks for        4.3.1.10.(2)
                                                                                                                                                        Storage of Flammable and Combustible Liquids
                                                                                                     TC               2001                              Standards Respecting Pipeline Crossings Under Railways              4.5.6.5.(3)
                                                                                                     TC               General Order No. 0-32, C.R.C.,   Flammable Liquids Bulk Storage Regulations                          4.5.6.5.(4)
                                                                                                                      c. 1148                                                                                               4.7.2.2.(1)
                                                                                                                                                                                                                            4.7.4.1.(2)
                                                                                                     TC               SOR/82-1015                       Railway Prevention of Electric Sparks Regulations                   4.7.4.5.(2)
                                                                                                                                                                                                                            4.8.5.1.(1)
                                                                                                     TC               SOR/96-433                        Canadian Aviation Regulations – Part III                            2.13.1.1.(1)




                                                                                                    National Fire Code of Canada 2020                                                                                                 Division B 1-9
                                                                                                    1.3.1.2.                                                                                                             Division B

                                                                                                                                                       Table 1.3.1.2. (Continued)

                                                                                                     Issuing Agency        Document Number (2)                            Title of Document                               Code Reference
                                                                                                    TC                SOR/2001-286                Transportation of Dangerous Goods Regulations (TDGR)               1.4.1.2.(1) (3)
                                                                                                                                                                                                                     A-1.4.1.2.(1) (3)
                                                                                                                                                                                                                     3.1.2.1.(1)
                                                                                                                                                                                                                     3.2.7.1.(3)
                                                                                                                                                                                                                     Table 3.2.7.1.
                                                                                                                                                                                                                     Table 3.2.7.6.
                                                                                                                                                                                                                     3.2.7.14.(1)
                                                                                                                                                                                                                     3.2.7.14.(4)
                                                                                                                                                                                                                     3.2.7.15.(2)




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                                                                                                                                                                                                                     3.3.4.1.(3)
                                                                                                                                                                                                                     A-3.2.7.1.(3)(b)
                                                                                                                                                                                                                     A-3.2.7.6.(3)
                                                                                                                                                                                                                     A-3.2.7.14.(1)
                                                                                                                                                                                                                     4.1.1.1.(3)
                                                                                                                                                                                                                     4.2.3.1.(1)
                                                                                                                                                                                                                     4.2.3.2.(2)
                                                                                                                                                                                                                     A-4.1.2.1.
                                                                                                                                                                                                                     A-4.2.2.3.(2)
                                                                                                    TC                SOR/2012-69                 Vessel Pollution and Dangerous Chemicals Regulations               A-4.8.8.1.(1)(a)
                                                                                                    ULC               ANSI/CAN/UL/ULC 2258:2018   Standard for Aboveground Nonmetallic Tanks for Fuel Oil and        4.3.1.2.(1)
                                                                                                                                                  Other Combustible Liquids
                                                                                                    ULC               CAN/ULC-S109-14             Standard Method for Flame Tests of Flame-Resistant Fabrics and     2.3.2.1.(1)
                                                                                                                                                  Films
                                                                                                    ULC               CAN/ULC-S137:2017           Standard Method of Test for Fire Growth of Mattresses (Open        2.3.2.3.(2)
                                                                                                                                                  Flame Test)
                                                                                                    ULC               CAN/ULC-S503-05             Standard for Carbon-Dioxide Fire Extinguishers                     2.1.5.1.(4)
                                                                                                    ULC               CAN/ULC-S504-12             Standard for Dry Chemical Fire Extinguishers                       2.1.5.1.(4)
                                                                                                    ULC               CAN/ULC-S507-05             Standard for Water Fire Extinguishers                              2.1.5.1.(4)
                                                                                                    ULC               CAN/ULC-S508-02             Standard for the Rating and Fire Testing of Fire Extinguishers     2.1.5.1.(5)
                                                                                                    ULC               CAN/ULC-S512-M87            Standard for Halogenated Agent Hand and Wheeled Fire               2.1.5.1.(4)
                                                                                                                                                  Extinguishers
                                                                                                    ULC               CAN/ULC-S531:2019           Standard for Smoke Alarms                                          2.1.3.3.(1)
                                                                                                    ULC               CAN/ULC-S536:2019 (6)       Standard for Inspection and Testing of Fire Alarm Systems          6.3.1.2.(1)
                                                                                                    ULC               CAN/ULC-S540-13             Standard for Residential Fire and Life Safety Warning Systems:     6.7.1.1.(3)
                                                                                                                                                  Installation, Inspection, Testing and Maintenance
                                                                                                    ULC               CAN/ULC-S552-14             Standard for Maintenance and Testing of Smoke Alarms               6.7.1.1.(1)
                                                                                                    ULC               CAN/ULC-S553-14             Standard for the Installation of Smoke Alarms                      2.1.3.3.(3)
                                                                                                    ULC               CAN/ULC-S554:2016           Standard for Water Based Agent Fire Extinguishers                  2.1.5.1.(4)
                                                                                                    ULC               CAN/ULC-S561-13             Standard for Installation and Services for Fire Signal Receiving   6.3.1.3.(1)
                                                                                                                                                  Centres and Systems                                                A-6.3.1.3.(1)
                                                                                                    ULC               CAN/ULC-S566:2017           Standard for Halocarbon Clean Agent Fire Extinguishers             2.1.5.1.(4)
                                                                                                    ULC               CAN/ULC-S601-14             Standard for Shop Fabricated Steel Aboveground Tanks for           4.3.1.2.(1)
                                                                                                                                                  Flammable and Combustible Liquids                                  4.3.3.2.(1)
                                                                                                    ULC               CAN/ULC-S602-14             Standard for Steel Aboveground Tanks for Fuel Oil and Lubricating 4.3.1.2.(1)
                                                                                                                                                  Oil
                                                                                                    ULC               CAN/ULC-S603-14             Standard for Steel Underground Tanks for Flammable and             4.3.1.2.(1)
                                                                                                                                                  Combustible Liquids                                                4.4.3.2.(4)
                                                                                                    ULC               CAN/ULC-S603.1-11           Standard for External Corrosion Protection Systems for Steel       4.3.1.2.(1)
                                                                                                                                                  Underground Tanks for Flammable and Combustible Liquids            4.3.8.6.(1)
                                                                                                                                                                                                                     4.3.10.1.(1)
                                                                                                                                                                                                                     4.5.3.1.(1)
                                                                                                    ULC               CAN/ULC-S612:2016           Standard for Hose and Hose Assemblies for Flammable and            4.6.5.1.(1)
                                                                                                                                                  Combustible Liquids


                                                                                                    1-10 Division B                                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                   1.3.1.2.

                                                                                                                                                     Table 1.3.1.2. (Continued)

                                                                                                     Issuing Agency       Document Number (2)                          Title of Document                               Code Reference
                                                                                                     ULC              CAN/ULC-S615-14           Standard for Fibre Reinforced Plastic Underground Tanks for        4.3.1.2.(1)
                                                                                                                                                Flammable and Combustible Liquids                                  4.3.8.6.(2)
                                                                                                                                                                                                                   4.4.3.2.(4)
                                                                                                     ULC              CAN/ULC-S620:2016         Standard for Hose Nozzle Valves for Flammable and Combustible      4.5.7.1.(2)
                                                                                                                                                Liquids                                                            4.6.5.2.(1)
                                                                                                     ULC              CAN/ULC-S633:2017         Standard for Flexible Connector Piping for Fuels                   4.5.6.14.(2)
                                                                                                     ULC              CAN/ULC-S642:2016         Standard for Compounds and Tapes for Threaded Pipe Joints          4.5.5.1.(1)




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                                                                                                     ULC              CAN/ULC-S644:2016         Standard for Emergency Breakaway Fittings for Flammable and        4.6.5.2.(4)
                                                                                                                                                Combustible Liquids
                                                                                                     ULC              CAN/ULC-S651:2016         Standard for Emergency Valves for Flammable and Combustible        4.5.7.1.(3)
                                                                                                                                                Liquids                                                            4.6.6.3.(1)
                                                                                                     ULC              CAN/ULC-S652:2016         Standard for Tank Assemblies for the Collection, Storage and       4.3.1.2.(1)
                                                                                                                                                Removal of Used Oil
                                                                                                     ULC              CAN/ULC-S653:2016         Standard for Aboveground Horizontal Steel Contained Tank           4.3.1.2.(1)
                                                                                                                                                Assemblies for Flammable and Combustible Liquids
                                                                                                     ULC              CAN/ULC-S655-15           Standard for Aboveground Protected Tank Assemblies for             4.3.1.2.(1)
                                                                                                                                                Flammable and Combustible Liquids                                  4.3.2.1.(7)
                                                                                                                                                                                                                   4.3.7.4.(2)
                                                                                                                                                                                                                   4.6.2.1.(3)
                                                                                                     ULC              CAN/ULC-S661-10           Standard for Overfill Protection Devices for Flammable and         4.3.1.8.(1)
                                                                                                                                                Combustible Liquid Storage Tanks                                   4.3.1.8.(2)
                                                                                                     ULC              CAN/ULC-S663-11           Standard for Spill Containment Devices for Flammable and           4.3.6.4.(4)
                                                                                                                                                Combustible Liquid Aboveground Storage Tanks
                                                                                                     ULC              CAN/ULC-S664:2017         Standard for Containment Sumps, Sump Fittings, and Accessories 4.3.9.2.(1)
                                                                                                                                                for Flammable and Combustible Liquids
                                                                                                     ULC              CAN/ULC-S668-12           Standard for Liners Used for Secondary Containment of              4.3.7.2.(2)
                                                                                                                                                Aboveground Flammable and Combustible Liquid Tanks
                                                                                                     ULC              CAN/ULC-S669-14           Standard for Internal Retrofit Systems for Underground Tanks for   4.3.1.10.(3)
                                                                                                                                                Flammable and Combustible Liquids                                  A-4.3.1.10.(3)
                                                                                                     ULC              CAN/ULC-S675.1-14         Standard for Volumetric Leak Detection Devices for Underground     A-4.4.2.1.(5)
                                                                                                                                                and Aboveground Storage Tanks for Flammable and Combustible        A-4.4.2.1.(7)
                                                                                                                                                Liquids                                                            A-4.4.2.1.(10)(a)
                                                                                                     ULC              CAN/ULC-S675.2-14         Standard for Nonvolumetric Precision Leak Detection Devices for    A-4.4.2.1.(7)
                                                                                                                                                Underground and Aboveground Storage Tanks and Piping for           A-4.4.2.1.(10)(a)
                                                                                                                                                Flammable and Combustible Liquids
                                                                                                     ULC              CAN/ULC-S676-15           Standard for Refurbishing of Storage Tanks for Flammable and       4.3.1.10.(1)
                                                                                                                                                Combustible Liquids
                                                                                                     ULC              CAN/ULC-S677-14           Standard for Fire Tested Aboveground Tank Assemblies for           4.3.1.2.(1)
                                                                                                                                                Flammable and Combustible Liquids
                                                                                                     ULC              CAN/ULC-S679:2017         Standard for Metallic and Nonmetallic Underground Piping for       4.5.2.1.(3)
                                                                                                                                                Flammable and Combustible Liquids                                  4.5.6.14.(2)
                                                                                                     ULC              CAN/ULC-S1001-11          Standard for Integrated Systems Testing of Fire Protection and     6.8.1.1.(1)
                                                                                                                                                Life Safety Systems                                                A-6.8.1.1.(1)
                                                                                                     ULC              ULC/ORD-C30-95            Safety Containers                                                  4.1.5.8.(2)
                                                                                                                                                                                                                   4.2.3.1.(1)
                                                                                                                                                                                                                   4.2.6.4.(1)
                                                                                                                                                                                                                   5.5.5.2.(2)
                                                                                                     ULC              ULC/ORD-C107.12-92        Line Leak Detection Devices for Flammable Liquid Piping            4.4.2.1.(11)
                                                                                                                                                                                                                   4.4.3.4.(2)
                                                                                                                                                                                                                   4.4.4.2.(1)
                                                                                                     ULC              ULC/ORD-C107.21-92        Under-Dispenser Sumps                                              4.6.3.2.(1)
                                                                                                     ULC              ULC/ORD-C410A-94          Absorbents for Flammable and Combustible Liquids                   A-4.1.6.3.(3)(b)



                                                                                                    National Fire Code of Canada 2020                                                                                       Division B 1-11
                                                                                                    1.3.2.1.                                                                                                                            Division B

                                                                                                                                                                   Table 1.3.1.2. (Continued)

                                                                                                      Issuing Agency           Document Number (2)                                    Title of Document                                  Code Reference
                                                                                                     ULC                  ULC/ORD-C536-98                    Flexible Metallic Hose                                                 4.5.6.14.(2)
                                                                                                     ULC                  ULC/ORD-C558-75                    Guide for the Investigation of Internal Combustion Engine-Powered 3.1.3.1.(2)
                                                                                                                                                             Industrial Trucks
                                                                                                     ULC                  ULC/ORD-C583-74                    Guide for the Investigation of Electric Battery Powered Industrial     3.1.3.1.(3)
                                                                                                                                                             Trucks
                                                                                                     ULC                  ULC/ORD-C842-84                    Guide for the Investigation of Valves for Flammable and                4.5.7.1.(1)
                                                                                                                                                             Combustible Liquids




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                                                                                                     ULC                  ULC/ORD-C1275-84                   Guide for the Investigation of Storage Cabinets for Flammable          4.2.10.5.(1)
                                                                                                                                                             Liquid Containers

                                                                                                    Notes to Table 1.3.1.2.:
                                                                                                    (1)   While every effort was made to ensure the accuracy of the information in this Table, the NRC is not responsible for the accuracy, timeliness or
                                                                                                          reliability of the content presented therein. For all purposes of interpreting and applying the referenced standards, Code users should refer to the
                                                                                                          most recent official versions of the referenced editions.
                                                                                                    (2)   Some documents may have been reaffirmed or reapproved. Check with the applicable issuing agency for up-to-date information.
                                                                                                    (3)   Code reference is in Division A.
                                                                                                    (4)   Code reference is in Division C.
                                                                                                    (5)   Subsection 9.3.15, Sprinkler-Protected Glazing, does not apply in the context of Division B.
                                                                                                    (6)   Notwithstanding the effective date stated in Sentence 1.3.1.1.(1), the August 2019 edition of CAN/ULC-S536 is referenced as it better meets
                                                                                                          the intent of the Code.


                                                                                                    1.3.2.                  Organizations
                                                                                                    1.3.2.1.                Abbreviations of Proper Names
                                                                                                                               1) The abbreviations of proper names in this Code shall have the meanings
                                                                                                                            assigned to them in this Article.
                                                                                                                          ACGIH ............. American Conference of Governmental Industrial Hygienists
                                                                                                                                              (www.acgih.org)
                                                                                                                          ANSI ................. American National Standards Institute (www.ansi.org)
                                                                                                                          API .................... American Petroleum Institute (www.api.org)
                                                                                                                          ARPM ............... Association for Rubber Products Manufacturers (www.arpminc.com)
                                                                                                                          ASABE ............. American Society of Agricultural and Biological Engineers
                                                                                                                                              (www.asabe.org)
                                                                                                                          ASME ............... American Society of Mechanical Engineers (www.asme.org)
                                                                                                                          ASTM ............... ASTM International (www.astm.org)
                                                                                                                          CAN ................. National Standard of Canada designation (www.scc.ca)
                                                                                                                          CCBFC .............. Canadian Commission on Building and Fire Codes (see NRC)
                                                                                                                          CCME ............... Canadian Council of Ministers of the Environment (www.ccme.ca)
                                                                                                                          CFA ................... Canadian Fuels Association (www.canadianfuels.ca)
                                                                                                                          CGA .................. Compressed Gas Association (www.cganet.com)
                                                                                                                          CGSB ................ Canadian General Standards Board
                                                                                                                                                (www.tpsgc-pwgsc.gc.ca/ongc-cgsb/index-eng.html)
                                                                                                                          CNSC ................ Canadian Nuclear Safety Commission (nuclearsafety.gc.ca/eng)
                                                                                                                          CSA ................... CSA Group (www.csagroup.org)
                                                                                                                          EPA ................... Environmental Protection Agency (U.S.) (www.epa.gov)
                                                                                                                          FM Global ........ FM Global (www.fmglobal.com)
                                                                                                                          HC ..................... Health Canada (www.hc-sc.gc.ca)
                                                                                                                          IMO .................. International Maritime Organization (www.imo.org)


                                                                                                    1-12 Division B                                                                                                    National Fire Code of Canada 2020
                                                                                                    Division B                                                                                      1.3.2.1.

                                                                                                                    NACE ............... NACE International (www.nace.org)
                                                                                                                    NBC .................. National Building Code of Canada 2020
                                                                                                                    NFC .................. National Fire Code of Canada 2020
                                                                                                                    NFPA ................ National Fire Protection Association (www.nfpa.org)
                                                                                                                    NRC .................. National Research Council of Canada (nrc.canada.ca)
                                                                                                                    NRCan .............. Natural Resources Canada (www.nrcan.gc.ca)
                                                                                                                    OCIMF ............. Oil Companies International Marine Forum (www.ocimf.com)
                                                                                                                    SFPE .................. Society of Fire Protection Engineers (www.sfpe.org)




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                                                                                                                    STI/SPFA .......... Steel Tank Institute/Steel Plate Fabricators Association
                                                                                                                                        (www.steeltank.com)
                                                                                                                    TC ..................... Transport Canada (www.tc.canada.ca)
                                                                                                                    UL ..................... Underwriters' Laboratories Inc. (www.ul.com)
                                                                                                                    ULC .................. ULC Standards (canada.ul.com/ulcstandards)
                                                                                                                    UN .................... United Nations (www.un.org)




                                                                                                    National Fire Code of Canada 2020                                                              Division B 1-13
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1-14 Division B




National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Notes to Part 1
                                                                                                    General




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                                                                                                    A-1.1.2.1.(1) Objectives and Functional Statements Attributed to Acceptable
                                                                                                    Solutions. The objectives and functional statements attributed to each Code provision are listed in a table
                                                                                                    following the provisions in each Part.
                                                                                                    Many provisions in Division B serve as modifiers of or pointers to other provisions or serve other clarification
                                                                                                    or explanatory purposes. In most cases, no objectives and functional statements have been attributed to such
                                                                                                    provisions, which therefore do not appear in the above-mentioned tables.
                                                                                                    For provisions that serve as modifiers of or pointers to other referenced provisions and that do not have any
                                                                                                    objectives and functional statements attributed to them, the objectives and functional statements that should be
                                                                                                    used are those attributed to the provisions they reference.

                                                                                                    These Notes are included for explanatory purposes only and do not form part of the requirements. The number
                                                                                                    that introduces each Note corresponds to the applicable requirement in this Part.




                                                                                                    National Fire Code of Canada 2020                                                                             Division B 1-15
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1-16 Division B




National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Part 2
                                                                                                    Building and Occupant Fire Safety




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                                                                                                      2.1.          General
                                                                                                      2.1.1.        Scope ................................................ 2-1
                                                                                                      2.1.2.        Classification of Buildings .............. 2-1
                                                                                                      2.1.3.        Fire Safety Installations ................... 2-1
                                                                                                      2.1.4.        Posted Information ........................... 2-3
                                                                                                      2.1.5.        Portable Extinguishers .................... 2-3

                                                                                                      2.2.          Fire Separations,
                                                                                                                    Encapsulation Materials
                                                                                                                    and Fire Protection
                                                                                                                    Materials
                                                                                                      2.2.1.        General .............................................. 2-4
                                                                                                      2.2.2.        Closures ............................................ 2-4
                                                                                                      2.2.3.        Encapsulation Materials .................. 2-5

                                                                                                      2.3.          Interior Finishing,
                                                                                                                    Furnishing and
                                                                                                                    Decorative Materials
                                                                                                      2.3.1.        General .............................................. 2-5
                                                                                                      2.3.2.        Flame Resistance ............................. 2-6

                                                                                                      2.4.          Fire Hazards
                                                                                                      2.4.1.        Combustible Materials ..................... 2-6
                                                                                                      2.4.2.        Smoking ............................................ 2-7
                                                                                                      2.4.3.        Open Flames ..................................... 2-8
                                                                                                      2.4.4.        Use of Dangerous Goods ................ 2-8
                                                                                                      2.4.5.        Open Air Fires .................................. 2-8
                                                                                                      2.4.6.        Vacant Buildings .............................. 2-8
                                                                                                      2.4.7.        Electrical Installations ..................... 2-9

                                                                                                      2.5.          Fire Department Access
                                                                                                                    to Buildings
                                                                                                      2.5.1.        General .............................................. 2-9

                                                                                                      2.6.          Service Equipment
                                                                                                      2.6.1.        Heating, Ventilating and
                                                                                                                    Air-conditioning ............................... 2-9
                                                                                                      2.6.2.        Incinerators ..................................... 2-11
                                                                                                      2.6.3.        Electrical Equipment Vaults .......... 2-11

                                                                                                      2.7.          Safety to Life
                                                                                                      2.7.1.        Means of Egress ............................. 2-11
                                                                                                      2.7.2.        Doors and Means of Egress .......... 2-13
                                                                                                      2.7.3.        Exit Lighting, Exit Signs and
                                                                                                                    Emergency Lighting ....................... 2-13

                                                                                                      2.8.          Emergency Planning
                                                                                                      2.8.1.        General ............................................ 2-14


                                                                                                    National Fire Code of Canada 2020
                                                                                                                                                                                        Division B

                                                                                                    2.8.2.    Fire Safety Plan .............................. 2-14
                                                                                                    2.8.3.    Fire Drills ......................................... 2-17

                                                                                                    2.9.      Tents and Air-Supported
                                                                                                              Structures
                                                                                                    2.9.1.    General ............................................ 2-18
                                                                                                    2.9.2.    Materials .......................................... 2-18
                                                                                                    2.9.3.    Fire Hazards and Control ............... 2-18

                                                                                                    2.10.     Daycare Centres
                                                                                                    2.10.1.   Construction ................................... 2-19
                                                                                                    2.10.2.   Supervision of Children ................. 2-19




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                                                                                                    2.10.3.   Combustible Materials ................... 2-19
                                                                                                    2.10.4.   Fire Safety Measures ..................... 2-19

                                                                                                    2.11.     Boarding and Lodging
                                                                                                              Houses
                                                                                                    2.11.1.   General ............................................ 2-20
                                                                                                    2.11.2.   Fire Safety Measures ..................... 2-20

                                                                                                    2.12.     Covered Malls
                                                                                                    2.12.1.   General ............................................ 2-20

                                                                                                    2.13.     Helicopter Landing
                                                                                                              Areas on Roofs
                                                                                                    2.13.1.   Construction ................................... 2-21
                                                                                                    2.13.2.   Fire Safety Measures ..................... 2-21

                                                                                                    2.14.     Farm Buildings
                                                                                                    2.14.1.   Fire Hazards and Control ............... 2-22
                                                                                                    2.14.2.   Signage ........................................... 2-22
                                                                                                    2.14.3.   Ambient Conditions ....................... 2-23

                                                                                                    2.15.     Objectives and
                                                                                                              Functional Statements
                                                                                                    2.15.1.   Objectives and Functional
                                                                                                              Statements ...................................... 2-23

                                                                                                              Notes to Part 2 ................ 2-31




                                                                                                                                                                           National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Part 2
                                                                                                    Building and Occupant Fire Safety




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                                                                                                    Section 2.1. General
                                                                                                    2.1.1.            Scope
                                                                                                    2.1.1.1.          Application
                                                                                                                         1) This Part provides for the safety of the occupants in existing buildings, the
                                                                                                                      elimination or control of fire hazards in and around buildings, the installation and
                                                                                                                      maintenance of certain life safety systems in buildings, the installation and maintenance
                                                                                                                      of posted signs and information, and the establishing of a fire safety plan for locations
                                                                                                                      identified in Article 2.8.1.1.

                                                                                                    2.1.2.            Classification of Buildings
                                                                                                    2.1.2.1.          Classification
                                                                                                                         1) For the purpose of applying this Code, every building or part thereof shall
                                                                                                                      be classified according to its major occupancy in conformance with the NBC. (See
                                                                                                                      Note A-2.1.2.1.(1).)

                                                                                                    2.1.2.2.          Hazardous Activities
                                                                                                                         1) Activities that create a hazard and that are not allowed for in the original design
                                                                                                                      shall not be carried out in a building unless provisions are made to control the hazard
                                                                                                                      in conformance with this Code. (See Note A-2.1.2.2.(1).)
                                                                                                                         2) No major occupancy of Group F, Division 1 shall be contained within a building
                                                                                                                      with any occupancy classified as an assembly, care, home-type care, treatment, detention
                                                                                                                      or residential occupancy.
                                                                                                                         3) No occupancy of Group A, Division 1 or 3, or Group B shall be contained within
                                                                                                                      a building with any major occupancy classified as an agricultural occupancy.
                                                                                                                         4) No occupancy of Group A, Division 2 or 4, or Group C shall be contained within
                                                                                                                      a building with any major occupancy classified as Group G, Division 1 or 4.

                                                                                                    2.1.3.            Fire Safety Installations
                                                                                                    2.1.3.1.          Fire Alarm, Standpipe and Sprinkler Systems
                                                                                                                         1) Except as otherwise provided in this Code, where fire alarm, standpipe and
                                                                                                                      sprinkler systems are provided, they shall be designed and installed in conformance
                                                                                                                      with the NBC. (See Note A-2.1.3.1.(1).)
                                                                                                                         2) When changes in the use of buildings or floor areas create a hazard exceeding
                                                                                                                      the criteria for which the fire protection systems were designed, such fire protection
                                                                                                                      systems shall be upgraded to accommodate the increased hazard.


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 2-1
                                                                                                    2.1.3.2.                                                                                         Division B

                                                                                                    2.1.3.2.         Voice Communication Systems
                                                                                                                        1) A voice communication system or systems integrated with the general fire
                                                                                                                     alarm system shall be provided in buildings as specified in Subsection 3.2.6. of
                                                                                                                     Division B of the NBC.

                                                                                                    2.1.3.3.         Smoke Alarms
                                                                                                                        1) Smoke alarms conforming to CAN/ULC-S531, “Standard for Smoke Alarms,”
                                                                                                                     shall be installed
                                                                                                                        a) in each home-type care occupancy and dwelling unit, except where the building
                                                                                                                             has a residential fire warning system installed in conformance with the




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                                                                                                                             NBC, and
                                                                                                                        b) in each sleeping room not within a dwelling unit, except for care, treatment or
                                                                                                                             detention occupancies required to have a fire alarm system.
                                                                                                                        2) Smoke alarms within home-type care occupancies and dwelling units shall be
                                                                                                                     installed between each sleeping area and the remainder of the home-type care occupancy
                                                                                                                     or dwelling unit, and where the sleeping areas are served by hallways, the smoke alarms
                                                                                                                     shall be installed in the hallways.
                                                                                                                        3) Smoke alarms shall be installed in conformance with CAN/ULC-S553, “Standard
                                                                                                                     for the Installation of Smoke Alarms.”
                                                                                                                        4) Smoke alarms are permitted to be battery-operated.

                                                                                                    2.1.3.4.         Protection of Combustible Sprinkler Piping
                                                                                                                       1) Materials installed to protect combustible sprinkler piping, as is required by the
                                                                                                                     NBC, shall be maintained in accordance with the provisions of the same edition of the
                                                                                                                     NBC used for their installation. (See Note A-2.1.3.4.(1).)

                                                                                                    2.1.3.5.         Special Fire Suppression Systems
                                                                                                                        1) Where a special fire suppression system is required by this Code or installed
                                                                                                                     through application of good engineering practices, the system shall conform to one of
                                                                                                                     the standards listed in Sentences (3) and (4).
                                                                                                                        2) If a water-based fire suppression system is not compatible with the fire
                                                                                                                     suppression requirements for certain types of dangerous goods, a special fire suppression
                                                                                                                     system conforming to one of the standards listed in Sentence (3) is permitted to be
                                                                                                                     installed in lieu of a water-based system.
                                                                                                                       3) The design and installation of a special fire suppression system that is not
                                                                                                                     water-based shall conform to one of the following standards:
                                                                                                                        a) NFPA 11, “Standard for Low-, Medium-, and High-Expansion Foam,”
                                                                                                                        b) NFPA 12, “Standard on Carbon Dioxide Extinguishing Systems,”
                                                                                                                        c) NFPA 12A, “Standard on Halon 1301 Fire Extinguishing Systems” (see
                                                                                                                            Note A-2.1.3.5.(3)(c) and (d)),
                                                                                                                       d) NFPA 12B, “Standard on Halon 1211 Fire Extinguishing Systems” (see
                                                                                                                            Note A-2.1.3.5.(3)(c) and (d)),
                                                                                                                        e) NFPA 17, “Standard for Dry Chemical Extinguishing Systems,” or
                                                                                                                        f) NFPA 17A, “Standard for Wet Chemical Extinguishing Systems.”
                                                                                                                        4) The design and installation of a water-based special fire suppression system
                                                                                                                     shall conform to one of the following standards:
                                                                                                                        a) NFPA 15, “Standard for Water Spray Fixed Systems for Fire Protection,” or
                                                                                                                        b) NFPA 16, “Standard on Installation of Foam-Water Sprinkler and
                                                                                                                             Foam-Water Spray Systems.”
                                                                                                                        5) Wetting agents used in conjunction with water-based fire suppression systems
                                                                                                                     shall conform to NFPA 18, “Standard on Wetting Agents.”
                                                                                                                        6) A hazard for which a fire suppression system has been designed is not permitted
                                                                                                                     to be increased unless the level of fire protection is also commensurately increased.


                                                                                                    2-2 Division B                                                                      National Fire Code of Canada 2020
                                                                                                    Division B                                                                                             2.1.5.1.

                                                                                                                         7) Operating and maintenance instructions for a special fire suppression system
                                                                                                                      shall be posted in proximity to the equipment and, if manual controls are provided,
                                                                                                                      shall be posted near the manual controls.
                                                                                                                          8) Valves and controls for a special fire suppression system shall be clearly marked
                                                                                                                      to indicate their function and shall be accessible at all times.

                                                                                                    2.1.3.6.          Inspection, Maintenance and Testing of Fire Safety Devices
                                                                                                                      (See Note A-2.1.3.6.)
                                                                                                                         1) Where specific references to the inspection, maintenance and testing of fire
                                                                                                                      safety devices and building fire safety features are not made in this Code, such devices




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                                                                                                                      and features shall be maintained to ensure they operate as per their design or function
                                                                                                                      according to their original intent.

                                                                                                    2.1.3.7.          Integrated Life Safety and Fire Protection Systems
                                                                                                                         1) Where life safety and fire protection systems are installed, they shall be tested
                                                                                                                      in accordance with the NBC.

                                                                                                    2.1.4.            Posted Information
                                                                                                    2.1.4.1.          Posting
                                                                                                                         1) Where a sign, notice, placard or information is required to be posted, it shall be
                                                                                                                         a) clearly legible, and
                                                                                                                         b) except as provided in Sentence (2), permanently mounted in a conspicuous
                                                                                                                            or prominent location in proximity to the situation to which it refers.
                                                                                                                         2) Where the situation for which posting is required is of a temporary nature,
                                                                                                                      permanent mounting need not be provided.

                                                                                                    2.1.4.2.          Maintenance
                                                                                                                        1) Every sign, notice, placard or information that is required to be posted shall be
                                                                                                                      maintained in conformance with Article 2.1.4.1.

                                                                                                    2.1.5.            Portable Extinguishers
                                                                                                    2.1.5.1.          Selection and Installation
                                                                                                                         1) Except as provided in Sentence (2), portable extinguishers shall be installed
                                                                                                                      in all buildings.
                                                                                                                         2) Sentence (1) does not apply to dwelling units, unless the dwelling unit is a
                                                                                                                      home-type care occupancy.
                                                                                                                         3) Except as otherwise required by this Code, portable extinguishers shall be
                                                                                                                      selected and installed in accordance with NFPA 10, “Standard for Portable Fire
                                                                                                                      Extinguishers.”
                                                                                                                         4) Notwithstanding the requirements of Sentence (3), portable extinguishers used
                                                                                                                      to comply with this Code shall conform to the following performance standards
                                                                                                                      as applicable:
                                                                                                                          a) CAN/ULC-S503, “Standard for Carbon-Dioxide Fire Extinguishers,”
                                                                                                                          b) CAN/ULC-S504, “Standard for Dry Chemical Fire Extinguishers,”
                                                                                                                          c) CAN/ULC-S507, “Standard for Water Fire Extinguishers,”
                                                                                                                          d) CAN/ULC-S512-M, “Standard for Halogenated Agent Hand and Wheeled
                                                                                                                             Fire Extinguishers,”
                                                                                                                          e) CAN/ULC-S554, “Standard for Water Based Agent Fire Extinguishers,” and
                                                                                                                          f) CAN/ULC-S566, “Standard for Halocarbon Clean Agent Fire Extinguishers.”
                                                                                                                         5) Notwithstanding the requirements of Sentence (3), portable extinguishers shall
                                                                                                                      be rated and identified in conformance with CAN/ULC-S508, “Standard for the Rating
                                                                                                                      and Fire Testing of Fire Extinguishers.”


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 2-3
                                                                                                    2.2.1.1.                                                                                          Division B

                                                                                                                        6) Portable extinguishers in proximity to a fire hazard shall be located so as to be
                                                                                                                     accessible without exposing the operator to undue risk. (See Note A-2.1.5.1.(6).)
                                                                                                                        7) Portable extinguishers that are subject to corrosion shall not be installed in a
                                                                                                                     corrosive environment unless they are provided with appropriate corrosion protection.


                                                                                                    Section 2.2. Fire Separations, Encapsulation
                                                                                                    Materials and Fire Protection Materials
                                                                                                    2.2.1.           General




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                                                                                                    2.2.1.1.         Fire Separations
                                                                                                                        1) Where a building contains more than one major occupancy, such occupancies shall
                                                                                                                     be separated from each other in conformance with the NBC.
                                                                                                                        2) Where rooms or spaces within a building contain a high-hazard industrial
                                                                                                                     occupancy, such occupancy shall be separated from the remainder of the building by fire
                                                                                                                     separations in conformance with this Code and the NBC.
                                                                                                                        3) Rooms, corridors, shafts and other spaces shall be separated where practicable
                                                                                                                     by fire separations conforming to the NBC.

                                                                                                    2.2.1.2.         Damage to Fire Separations and Fire Protection Materials
                                                                                                                        1) Where fire separations are damaged so as to affect their integrity, they shall be
                                                                                                                     repaired so that the integrity of the fire separation is maintained.
                                                                                                                        2) Where materials used to provide fire protection are damaged or removed, they
                                                                                                                     shall be repaired or replaced so that the integrity of the fire protection is maintained.

                                                                                                    2.2.2.           Closures
                                                                                                    2.2.2.1.         Openings in Fire Separations
                                                                                                                        1) Openings in fire separations shall be protected with closures in conformance
                                                                                                                     with the NBC.
                                                                                                                        2) Where closures in fire separations are replaced, the replacements shall be in
                                                                                                                     conformance with the NBC.

                                                                                                    2.2.2.2.         Damage to Closures
                                                                                                                         1) Where closures are damaged so as to affect the integrity of their fire-protection
                                                                                                                     rating, they shall be repaired so that their integrity is maintained in conformance with
                                                                                                                     Article 2.2.2.1.

                                                                                                    2.2.2.3.         Protective Guarding Devices
                                                                                                                        1) Protective guarding devices shall be
                                                                                                                        a) provided where necessary to prevent damage to the mechanical components
                                                                                                                           of doors in fire separations, and
                                                                                                                        b) installed so as not to interfere with the proper operation of the doors.

                                                                                                    2.2.2.4.         Inspection and Maintenance
                                                                                                                        1) Defects that interfere with the operation of closures in fire separations shall be
                                                                                                                     corrected, and such closures shall be maintained to ensure that they are operable at all
                                                                                                                     times by
                                                                                                                        a) keeping fusible links and other heat-actuated devices undamaged and free
                                                                                                                            of paint and dirt,
                                                                                                                        b) keeping guides, bearings and stay rolls clean and lubricated,


                                                                                                    2-4 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                2.3.1.4.

                                                                                                                         c) making necessary adjustments and repairs to door hardware and accessories
                                                                                                                            to ensure proper closing and latching, and
                                                                                                                         d) repairing or replacing inoperative parts of hold-open devices and automatic
                                                                                                                            releasing devices.

                                                                                                                         2) Except where they are equipped with hold-open devices conforming to the
                                                                                                                      NBC, doors in fire separations that are required to be equipped with self-closing devices
                                                                                                                      shall be inspected at intervals not greater than 24 h to ensure that they remain in the
                                                                                                                      closed position when not in use.

                                                                                                                         3) Doors in fire separations shall be operated at intervals not greater than one
                                                                                                                      month to ensure that they are properly maintained in accordance with Sentence (1), as




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                                                                                                                      specified in the fire safety plan prepared in conformance with Section 2.8.

                                                                                                                         4) Closures in fire separations shall not be obstructed, blocked, wedged open, or
                                                                                                                      altered in any way that would prevent the intended operation of the closure.

                                                                                                                          5) Fire dampers, smoke dampers, combination smoke/fire dampers and fire stop
                                                                                                                      flaps shall be
                                                                                                                          a) inspected at intervals not greater than 12 months to ensure that they are in
                                                                                                                              place and not obviously damaged or obstructed, and
                                                                                                                          b) tested in accordance with NFPA 80, “Standard for Fire Doors and Other
                                                                                                                              Opening Protectives.”

                                                                                                    2.2.3.            Encapsulation Materials

                                                                                                    2.2.3.1.          Damaged or Removed Encapsulation Materials

                                                                                                                         1) Where encapsulation materials or an assembly of materials that provide
                                                                                                                      protection for mass timber elements in encapsulated mass timber construction are
                                                                                                                      damaged or removed so as to affect their integrity, they shall be repaired or replaced in
                                                                                                                      conformance with the NBC so that the required encapsulation rating is restored.


                                                                                                    Section 2.3. Interior Finishing, Furnishing and
                                                                                                    Decorative Materials
                                                                                                    2.3.1.            General

                                                                                                    2.3.1.1.          Interior Finish

                                                                                                                         1) The interior finish material that forms part of the interior surface of a floor, wall,
                                                                                                                      partition or ceiling shall conform to the NBC.

                                                                                                    2.3.1.2.          Movable Partitions and Screens

                                                                                                                         1) Movable partitions or screens, including acoustical screens, shall have a
                                                                                                                      flame-spread rating not greater than that required for the interior finish of the area in
                                                                                                                      which they are located.

                                                                                                    2.3.1.3.          Decorative Materials

                                                                                                                         1) Decorative materials on walls or ceilings shall have a flame-spread rating not
                                                                                                                      greater than that required for the interior finish of the space in which they are located.

                                                                                                    2.3.1.4.          Interconnected Floor Spaces

                                                                                                                         1) Combustible contents in interconnected floor spaces in which the ceiling is more
                                                                                                                      than 8 m above the floor, shall not exceed the limit specified in Subsection 3.2.8. of
                                                                                                                      Division B of the NBC.


                                                                                                    National Fire Code of Canada 2020                                                                        Division B 2-5
                                                                                                    2.3.2.1.                                                                                               Division B

                                                                                                    2.3.2.           Flame Resistance
                                                                                                    2.3.2.1.         Drapes, Curtains and Decorative Materials
                                                                                                                        1) Drapes, curtains and other decorative materials, including textiles and films,
                                                                                                                     used in buildings shall conform to CAN/ULC-S109, “Standard Method for Flame
                                                                                                                     Tests of Flame-Resistant Fabrics and Films,” when such drapes, curtains and other
                                                                                                                     decorative materials are used in
                                                                                                                        a) any assembly occupancy or Group B, Division 1 detention occupancy,
                                                                                                                        b) any lobby or exit, or
                                                                                                                         c) any open floor areas exceeding 500 m2 in any business and personal services,
                                                                                                                             mercantile or industrial occupancy, except where the floor area is divided




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                                                                                                                             into fire compartments not exceeding 500 m2 in area and separated from the
                                                                                                                             remainder of the floor area by fire separations having at least a 1 h fire-resistance
                                                                                                                             rating.

                                                                                                    2.3.2.2.         Flame-Retardant Treatments
                                                                                                                        1) Flame-retardant treatments shall be renewed as often as is required to ensure
                                                                                                                     that the material will pass the match flame test in NFPA 705, “Recommended Practice
                                                                                                                     for a Field Flame Test for Textiles and Films.” (See Note A-2.3.2.2.(1).)

                                                                                                    2.3.2.3.         Textiles in Group B Occupancies
                                                                                                                        1) Except as provided in Sentence (3), bed linen, window drapes and cubicle
                                                                                                                     curtains shall conform to CAN2-4.162-M, “Hospital Textiles – Flammability
                                                                                                                     Performance Requirements,” if used in
                                                                                                                        a) Group B, Division 2 treatment occupancies, or
                                                                                                                        b) Group B, Division 3 care occupancies.
                                                                                                                        2) Except as provided in Sentence (3), mattresses and mattress sets shall conform
                                                                                                                     to CAN/ULC-S137, “Standard Method of Test for Fire Growth of Mattresses (Open
                                                                                                                     Flame Test),” if used in
                                                                                                                         a) Group B, Division 1 detention occupancies,
                                                                                                                         b) Group B, Division 2 treatment occupancies, or
                                                                                                                         c) Group B, Division 3 care occupancies.
                                                                                                                        3) Mattresses, bed linen, window drapes and cubicle curtains need not comply
                                                                                                                     with Sentences (1) and (2) if used in
                                                                                                                        a) suites in a building of care occupancy, or
                                                                                                                        b) care occupancies with not more than 10 residents.


                                                                                                    Section 2.4. Fire Hazards
                                                                                                    2.4.1.           Combustible Materials
                                                                                                    2.4.1.1.         Accumulation of Combustible Materials
                                                                                                                     (See also Sections 3.2. and 3.3.)
                                                                                                                        1) Combustible waste materials in and around buildings shall not be permitted
                                                                                                                     to accumulate in quantities or locations that will constitute an undue fire hazard.
                                                                                                                     (See Note A-2.4.1.1.(1).)
                                                                                                                         2) Combustible materials, other than those for which the location, room or space
                                                                                                                     is designed, shall not be permitted to accumulate in any part of an elevator shaft,
                                                                                                                     ventilation shaft, means of egress, service room or service space. (See Note A-2.4.1.1.(2).)
                                                                                                                        3) Horizontal concealed spaces, such as crawl spaces and ceiling spaces, shall not
                                                                                                                     be used for the storage of combustible materials.
                                                                                                                        4) Combustible materials shall not be stored on a roof or adjacent to any building
                                                                                                                     so as to create a fire hazard to the building or its occupants.


                                                                                                    2-6 Division B                                                                            National Fire Code of Canada 2020
                                                                                                    Division B                                                                                           2.4.2.2.

                                                                                                                         5) Abandoned optical fibre cables and electrical wires and cables with combustible
                                                                                                                      insulation, jackets, or sheathes, and nonmetallic raceways shall be removed from a
                                                                                                                      plenum unless
                                                                                                                         a) they are permanently enclosed by the structure or finish of the building,
                                                                                                                         b) their removal would disturb the structure or finish of the building,
                                                                                                                          c) their removal could affect the performance of cables in use, or
                                                                                                                         d) the plenum space is sprinklered.

                                                                                                                         6) Outdoor storage receptacles, such as dumpsters, used for combustible materials
                                                                                                                      shall be located so that they do not create an undue fire hazard to surrounding
                                                                                                                      buildings. (See Note A-2.4.1.1.(6).)




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                                                                                                    2.4.1.2.          Storage Rooms for Combustible Waste Materials

                                                                                                                         1) Where rooms are provided for the storage of combustible waste materials,
                                                                                                                      such rooms shall conform to the NBC.

                                                                                                    2.4.1.3.          Waste Receptacles

                                                                                                                         1) Materials subject to spontaneous ignition, such as oily rags, shall be deposited
                                                                                                                      in a receptacle conforming to Sentence (4) or be removed from the premises. (See
                                                                                                                      Note A-2.4.1.3.(1).)

                                                                                                                        2) All ashes shall be stored in receptacles conforming to Sentence (4) and
                                                                                                                      combustible materials shall not be stored with ashes in the same container.

                                                                                                                         3) Except as permitted in Sentence (4), noncombustible receptacles as required in
                                                                                                                      Sentences (1) and (2) shall not be placed closer than 1 m to combustible materials.

                                                                                                                         4)   A receptacle required by Sentences (1) and (2) shall
                                                                                                                         a)   be constructed of noncombustible materials,
                                                                                                                         b)   have a close-fitting, self-closing metal cover, and
                                                                                                                         c)   if the flooring material upon which it is placed is combustible, have a
                                                                                                                              flanged bottom or legs not less than 50 mm high.

                                                                                                    2.4.1.4.          Lint Traps for Laundry Equipment

                                                                                                                         1) Lint traps in laundry equipment shall be cleaned after each use of the
                                                                                                                      equipment.


                                                                                                    2.4.2.            Smoking

                                                                                                    2.4.2.1.          Smoking Areas

                                                                                                                        1) Smoking shall not be permitted in areas where conditions are such as to make
                                                                                                                      smoking a fire or explosion hazard.

                                                                                                                         2) An area where smoking is not permitted in Sentence (1) shall be identified
                                                                                                                      by signs conforming to Article 2.4.2.2.

                                                                                                                         3) Where smoking is permitted, an adequate number of ash trays shall be
                                                                                                                      provided.

                                                                                                    2.4.2.2.          Signs

                                                                                                                         1) Signs prohibiting smoking shall have black lettering not less than 50 mm high
                                                                                                                      with a stroke not less than 12 mm wide on a yellow background, except that symbols
                                                                                                                      of not less than 150 mm by 150 mm are permitted to be used in lieu of lettering.


                                                                                                    National Fire Code of Canada 2020                                                                    Division B 2-7
                                                                                                    2.4.3.1.                                                                                          Division B

                                                                                                    2.4.3.           Open Flames
                                                                                                    2.4.3.1.         Open Flames in Processions
                                                                                                                        1) Open flames whose quantity and method of use create a fire hazard shall not be
                                                                                                                     permitted in processions
                                                                                                                        a) in assembly occupancies, or
                                                                                                                        b) in dining areas in Group B, Divisions 2, 3 and 4 treatment, care and home-type
                                                                                                                            care occupancies.

                                                                                                    2.4.3.2.         Flaming Meals and Drinks




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                                                                                                                        1) In Group B, Divisions 2 , 3 and 4 treatment, care and home-type care occupancies,
                                                                                                                     flaming meals or drinks shall not be served.
                                                                                                                        2) In assembly occupancies, flaming meals or drinks shall be ignited only at the
                                                                                                                     location of serving.
                                                                                                                        3) In assembly occupancies, the refuelling of equipment used to flame meals or
                                                                                                                     drinks, or to warm food, shall be carried out
                                                                                                                        a) outside the serving area, and
                                                                                                                        b) away from ignition sources.
                                                                                                                        4) A portable extinguisher having a minimum rating of 5-B:C shall be located on
                                                                                                                     the serving cart or table where flaming meals and drinks referred to in Sentences (2)
                                                                                                                     and (3) are served.

                                                                                                    2.4.3.3.         Devices Having Open Flames
                                                                                                                        1) Devices having open flames shall be securely supported in noncombustible
                                                                                                                     holders and shall be located or protected so as to prevent accidental contact of the
                                                                                                                     flame with combustible materials.

                                                                                                    2.4.4.           Use of Dangerous Goods
                                                                                                    2.4.4.1.         Flammable and Combustible Liquids
                                                                                                                        1) Flammable liquids and combustible liquids shall be classified, stored and handled
                                                                                                                     in conformance with Part 4.
                                                                                                                        2) Class I liquids shall not be used for cleaning purposes, except where such
                                                                                                                     cleaning is an essential part of a process.
                                                                                                                        3) Spills of flammable liquids or combustible liquids within buildings shall be removed
                                                                                                                     in conformance with Subsection 4.1.6.

                                                                                                    2.4.4.2.         Flammable Gases
                                                                                                                        1) Dangerous goods classified as flammable gases shall not be used to inflate
                                                                                                                     balloons.

                                                                                                    2.4.5.           Open Air Fires
                                                                                                    2.4.5.1.         Open Air Fires
                                                                                                                         1) Except for fires used for cooking in fireplaces, grills or barbecues, open air
                                                                                                                     fires shall not be set unless appropriate measures are taken to limit their spread. (See
                                                                                                                     Note A-2.4.5.1.(1).)

                                                                                                    2.4.6.           Vacant Buildings
                                                                                                    2.4.6.1.         Security
                                                                                                                       1) Vacant buildings shall be secured against unauthorized entry. (See
                                                                                                                     Note A-2.4.6.1.(1).)


                                                                                                    2-8 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                               2.6.1.3.

                                                                                                    2.4.7.            Electrical Installations
                                                                                                    2.4.7.1.          Use and Maintenance
                                                                                                                        1) Electrical installations shall be used and maintained so as not to constitute an
                                                                                                                      undue fire hazard.


                                                                                                    Section 2.5. Fire Department Access to Buildings
                                                                                                    2.5.1.            General




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                                                                                                    2.5.1.1.          Access to Building
                                                                                                                         1) Fire department vehicles shall have direct access to at least one face of every
                                                                                                                      building by means of a street, yard or roadway in conformance with the NBC.

                                                                                                    2.5.1.2.          Access Panels and Windows
                                                                                                                        1) Access panels or windows provided to facilitate access for firefighting
                                                                                                                      operations shall be maintained free of obstruction.

                                                                                                    2.5.1.3.          Access to Roof
                                                                                                                         1) Where access to a roof is provided for firefighting purposes, keys shall be
                                                                                                                      provided for locked roof access doors and kept in a location determined in cooperation
                                                                                                                      with the fire department.

                                                                                                    2.5.1.4.          Access to Fire Department Connections
                                                                                                                          1) Access to fire department connections for sprinkler or standpipe systems by
                                                                                                                      firefighters and their equipment shall be maintained free of obstructions at all times.

                                                                                                    2.5.1.5.          Maintenance of Fire Department Access
                                                                                                                        1) Streets, yards and roadways provided for fire department access shall be
                                                                                                                      maintained so as to be ready for use at all times by fire department vehicles.
                                                                                                                         2) Vehicles shall not be parked to obstruct access by fire department vehicles and
                                                                                                                      signs shall be posted prohibiting such parking.


                                                                                                    Section 2.6. Service Equipment
                                                                                                    2.6.1.            Heating, Ventilating and Air-conditioning
                                                                                                    2.6.1.1.          Installation
                                                                                                                         1) Heating, ventilating and air-conditioning appliances and equipment shall be
                                                                                                                      installed in conformance with the NBC.

                                                                                                    2.6.1.2.          Coal and Wood Bins
                                                                                                                         1) Coal and wood bins shall be located not less than 1.2 m from the appliance
                                                                                                                      served.

                                                                                                    2.6.1.3.          Hoods, Ducts and Filters
                                                                                                                         1) Hoods, ducts and filters subject to accumulations of combustible deposits
                                                                                                                      shall be inspected at intervals not greater than 7 days, and shall be cleaned if the
                                                                                                                      accumulation of such deposits creates a fire hazard.


                                                                                                    National Fire Code of Canada 2020                                                                        Division B 2-9
                                                                                                    2.6.1.4.                                                                                           Division B

                                                                                                    2.6.1.4.          Chimneys, Flues and Flue Pipes
                                                                                                                         1) Every chimney, flue and flue pipe shall be inspected to identify any dangerous
                                                                                                                      condition
                                                                                                                         a) at intervals not greater than 12 months,
                                                                                                                         b) at the time of addition of any appliance, and
                                                                                                                          c) after any chimney fire.
                                                                                                                      (See Note A-2.6.1.4.(1).)
                                                                                                                         2) Chimneys, flues and flue pipes shall be cleaned as often as necessary to keep them
                                                                                                                      free from dangerous accumulations of combustible deposits. (See Note A-2.6.1.4.(2).)
                                                                                                                         3) A chimney, flue, or flue pipe shall be replaced or repaired to eliminate




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                                                                                                                         a) any structural deficiency or decay (see Note A-2.6.1.4.(3)(a)), and
                                                                                                                         b) all abandoned or unused openings that are not effectively sealed in a
                                                                                                                            manner that would prevent the passage of fire or smoke.

                                                                                                    2.6.1.5.          Clearances
                                                                                                                         1) Required clearances between chimneys, flue pipes or appliances and combustible
                                                                                                                      construction or encapsulated mass timber construction shall be maintained in conformance
                                                                                                                      with the NBC.
                                                                                                                         2) Combustible materials shall not be located within the required clearance space
                                                                                                                      surrounding chimneys, flue pipes or appliances, or adjacent to ash pit or cleanout doors.

                                                                                                    2.6.1.6.          Operation and Maintenance Procedures
                                                                                                                         1) Heating, ventilating and air-conditioning systems, including appliances,
                                                                                                                      chimneys and flue pipes, shall be operated and maintained so as not to create a
                                                                                                                      hazardous condition.
                                                                                                                         2) Except as provided in Sentence (3), disconnect switches for mechanical heating,
                                                                                                                      ventilating and air-conditioning systems shall be operated at intervals not greater than
                                                                                                                      12 months to establish that the system can be shut down in an emergency.
                                                                                                                         3) Sentence (2) does not apply to self-contained systems within dwelling units,
                                                                                                                      unless the dwelling unit is a home-type care occupancy.

                                                                                                    2.6.1.7.          Ventilation Shafts
                                                                                                                         1) Ventilation shafts shall be used only for ventilating purposes.

                                                                                                    2.6.1.8.          Repairs and Renovations
                                                                                                                         1) Work on ducts involving the use of heat-producing devices for cutting, welding
                                                                                                                      or soldering shall not be undertaken before
                                                                                                                          a) the system has been shut down,
                                                                                                                          b) the duct has been cleaned of any accumulations of combustible deposits, and
                                                                                                                          c) any combustible lining and covering material that could be ignited by such
                                                                                                                             work has been removed.
                                                                                                                          2) Precautions shall be taken, where necessary, to ensure that there is no damage
                                                                                                                      to fuel supply piping or equipment that would result in fuel leakage or a fire hazard
                                                                                                                      during renovations or excavation.

                                                                                                    2.6.1.9.          Commercial Cooking Equipment
                                                                                                                         1) Commercial cooking equipment exhaust and fire protection systems shall be
                                                                                                                      designed and installed in conformance with the NBC.
                                                                                                                         2) Except as required in Sentences (3) to (5), the use, inspection and maintenance
                                                                                                                      of commercial cooking equipment exhaust and fire protection systems shall be in
                                                                                                                      conformance with NFPA 96, “Standard for Ventilation Control and Fire Protection of
                                                                                                                      Commercial Cooking Operations.”
                                                                                                                         3) Hoods, grease removal devices, fans, ducts, and other appurtenances shall be
                                                                                                                      cleaned at frequent intervals to prevent surfaces from becoming heavily contaminated
                                                                                                                      with grease or other residues. (See Note A-2.6.1.9.(3).)


                                                                                                    2-10 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                              2.7.1.2.

                                                                                                                         4) Flammable cleaning materials or solvents shall not be used for the cleaning
                                                                                                                      of exhaust systems.
                                                                                                                         5) Instructions for manually operating the fire protection systems shall be posted
                                                                                                                      conspicuously in the kitchen as part of the fire safety plan.
                                                                                                                        6) Commercial cooking equipment that is certified shall be installed and
                                                                                                                      maintained in conformance with its certification.
                                                                                                                         7) Uncertified commercial cooking equipment shall be installed and maintained
                                                                                                                      so as not to create a fire hazard.




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                                                                                                    2.6.2.            Incinerators
                                                                                                    2.6.2.1.          Indoor Incinerators
                                                                                                                         1) The installation and alteration of indoor incinerators shall conform to the NBC.

                                                                                                    2.6.2.2.          Outdoor Incinerators
                                                                                                                         1) The design, construction, installation, alteration and maintenance of outdoor
                                                                                                                      incinerators shall conform to NFPA 82, “Standard on Incinerators and Waste and Linen
                                                                                                                      Handling Systems and Equipment,” except that the flue venting an incinerator shall not
                                                                                                                      serve as the chute conveying waste material to the incinerator.

                                                                                                    2.6.2.3.          Spark Arresters
                                                                                                                         1) Spark arresters installed in conformance with Articles 2.6.2.1. and 2.6.2.2. shall
                                                                                                                      be inspected and cleaned at intervals not greater than 12 months or more frequently
                                                                                                                      where accumulations of debris will adversely affect operations.
                                                                                                                         2) Burnt-out spark arresters shall be repaired or replaced.

                                                                                                    2.6.3.            Electrical Equipment Vaults
                                                                                                    2.6.3.1.          Use
                                                                                                                         1) Electrical equipment vaults shall not be used for storage purposes.

                                                                                                    2.6.3.2.          Security
                                                                                                                         1) Electrical equipment vaults shall be kept locked so that unauthorized persons
                                                                                                                      will not have access to them.


                                                                                                    Section 2.7. Safety to Life
                                                                                                    2.7.1.            Means of Egress
                                                                                                    2.7.1.1.          Means of Egress
                                                                                                                         1) Means of egress shall be provided in buildings in conformance with the NBC.

                                                                                                    2.7.1.2.          Open Floor Areas
                                                                                                                         1) Aisles conforming to Sentences (2) to (4) shall be provided in every floor area
                                                                                                                      that is required by the NBC to have more than one egress doorway.
                                                                                                                         2)   Every required egress doorway shall be served by an aisle that
                                                                                                                         a)   has a clear width not less than 1 100 mm,
                                                                                                                         b)   has access to at least one additional egress doorway, and
                                                                                                                         c)   at every point on the aisle, provides a choice of 2 opposite directions by
                                                                                                                              which to reach an egress doorway.


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 2-11
                                                                                                    2.7.1.3.                                                                                           Division B

                                                                                                                         3) A subsidiary aisle with only a single direction of travel to an aisle described in
                                                                                                                      Sentence (2) is permitted, provided it has a clear width not less than 900 mm and a
                                                                                                                      length not greater than
                                                                                                                         a) 7.5 m in business and personal services, mercantile and high-hazard industrial
                                                                                                                             occupancies,
                                                                                                                         b) 10 m in medium-hazard industrial occupancies, or
                                                                                                                         c) 15 m in low-hazard industrial occupancies.
                                                                                                                         4) Every individual work area in business and personal services occupancies shall be
                                                                                                                      located adjacent to an aisle or subsidiary aisle.

                                                                                                    2.7.1.3.          Occupant Load




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                                                                                                                         1) The maximum permissible occupant load for any room shall be calculated on
                                                                                                                      the basis of the lesser of
                                                                                                                          a) 0.4 m2 of net floor space per occupant, or
                                                                                                                         b) the occupant load for which means of egress are provided.
                                                                                                                      (See Note A-2.7.1.3.(1).)
                                                                                                                        2) The number of occupants permitted to enter a room shall not exceed the
                                                                                                                      maximum occupant load calculated in conformance with Sentence (1).

                                                                                                    2.7.1.4.          Signs
                                                                                                                         1) In assembly occupancies with occupant loads exceeding 60 persons, the occupant
                                                                                                                      load shall be posted in conspicuous locations near the principal entrances to the room
                                                                                                                      or floor area.
                                                                                                                        2) Signs required by the NBC to indicate the occupant load for a floor area shall be
                                                                                                                      posted in conspicuous locations near the principal entrances to the floor area. (See
                                                                                                                      Note A-2.7.1.4.(2).)
                                                                                                                         3) Signs required in Sentences (1) and (2) shall have lettering not less than 50 mm
                                                                                                                      high with a 12 mm stroke.

                                                                                                    2.7.1.5.          Nonfixed Seating
                                                                                                                         1) When nonfixed seats are provided in assembly occupancies,
                                                                                                                         a) except as provided in Sentence (3), the seats shall be arranged in rows
                                                                                                                             having an unobstructed passage of not less than 400 mm between rows
                                                                                                                             measured horizontally between plumb lines from the backs of the seats in
                                                                                                                             one row and the edges of the furthest forward projection of the seats in the
                                                                                                                             next row behind in the unoccupied position,
                                                                                                                         b) except as provided in Sentence (2), aisles shall be located so that there are
                                                                                                                             not more than 7 seats between every seat and the nearest aisle,
                                                                                                                         c) except as provided in Sentence (2), the clear width of an aisle in millimetres
                                                                                                                             shall be not less than the greater of 1 100 or the product of the number of
                                                                                                                             seats served by that aisle and 6.1,
                                                                                                                         d) the width of an aisle is permitted to be reduced to not less than 750 mm
                                                                                                                             when serving 60 seats or fewer,
                                                                                                                         e) dead-end aisles shall not be longer than 6 m, and
                                                                                                                          f) except as provided in Sentence (3), when the occupant load exceeds
                                                                                                                             200 persons,
                                                                                                                                i) the seats in a row shall be fastened together in units of no
                                                                                                                                   fewer than 8 seats, or
                                                                                                                               ii) where there are 7 seats or fewer in a row, all the seats in the
                                                                                                                                   row shall be fastened together.
                                                                                                                         2) When nonfixed seats are provided in outdoor assembly occupancies,
                                                                                                                         a) aisles shall be located so that there are not more than 15 seats between every
                                                                                                                            seat and the nearest aisle, and
                                                                                                                         b) the clear width of an aisle in millimetres shall be not less than the greater of
                                                                                                                            1 200 or the product of the number of seats served by that aisle and 1.8.


                                                                                                    2-12 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                               2.7.3.1.

                                                                                                                         3) When nonfixed seats are provided at tables arranged in rows, the spacing
                                                                                                                      between the nearest edges of tables in 2 successive rows shall be not less than
                                                                                                                         a) 1 400 mm where seating is arranged on both sides of tables (back to back), or
                                                                                                                         b) 1 000 mm where seating is on one side only.

                                                                                                    2.7.1.6.          Maintenance

                                                                                                                         1) Means of egress shall be maintained in good repair and free of obstructions.
                                                                                                                      (See Note A-2.7.1.6.(1).)

                                                                                                    2.7.1.7.          Exterior Passageways and Exit Stairs




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                                                                                                                        1) Exterior passageways and exterior exit stairs serving occupied buildings shall be
                                                                                                                      maintained free of snow and ice accumulations.

                                                                                                                         2) Where equipment is provided to melt snow or ice on exterior passageways and
                                                                                                                      exterior exit stairs serving an occupied building, such equipment shall be maintained in
                                                                                                                      working order or alternative measures shall be taken to comply with Sentence (1).

                                                                                                    2.7.1.8.          Free of Obstruction

                                                                                                                         1) Where an exit door leading directly to the outside is subject to being obstructed
                                                                                                                      by parked vehicles or storage because of its location, a visible sign or a physical barrier
                                                                                                                      prohibiting such obstructions shall be installed on the exterior side of the door.

                                                                                                    2.7.2.            Doors and Means of Egress

                                                                                                    2.7.2.1.          Exit Doors

                                                                                                                         1) Except as provided in Sentences (2), (3) and (4), all doors forming part of a
                                                                                                                      means of egress shall be tested at intervals not greater than one month to ensure that
                                                                                                                      they are operable.

                                                                                                                         2) The safety features of revolving doors shall be tested at intervals not greater
                                                                                                                      than 12 months.

                                                                                                                         3) Sliding doors that are required to swing on their vertical axes in the direction of
                                                                                                                      egress when pressure is applied shall be tested at intervals not greater than 12 months.

                                                                                                                          4) When doors are equipped with electromagnetic locks, these locks shall be tested
                                                                                                                      at intervals not greater than 12 months.

                                                                                                    2.7.2.2.          Records

                                                                                                                         1) Records of tests required in Sentences 2.7.2.1.(2), (3) and (4) shall be retained in
                                                                                                                      conformance with Article 2.2.1.2. of Division C.

                                                                                                    2.7.3.            Exit Lighting, Exit Signs and Emergency Lighting

                                                                                                    2.7.3.1.          Installation and Maintenance

                                                                                                                         1) Exit lighting, exit signs and emergency lighting shall be provided in buildings
                                                                                                                      in conformance with the NBC. (See Note A-2.7.3.1.(1).)

                                                                                                                          2) Exit lighting and exit signs shall be illuminated during times when the building
                                                                                                                      is occupied.

                                                                                                                         3) Emergency lighting and exit signs shall be maintained in operating condition, in
                                                                                                                      conformance with Section 6.5.


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 2-13
                                                                                                    2.8.1.1.                                                                                            Division B

                                                                                                    Section 2.8. Emergency Planning
                                                                                                    2.8.1.            General
                                                                                                    2.8.1.1.          Application
                                                                                                                         1) Fire emergency procedures conforming to this Section shall be provided for
                                                                                                                         a) every building containing a care, home-type care, treatment or detention
                                                                                                                             occupancy,
                                                                                                                         b) every building containing a school, college or university, or a daycare facility,
                                                                                                                         c) every building containing a licensed beverage establishment or a licensed
                                                                                                                             restaurant,




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                                                                                                                         d) every building containing an assembly occupancy other than one of those
                                                                                                                             described in Clauses (b) and (c) with an occupant load of more than 30,
                                                                                                                         e) every building containing an area where treatment is provided in business and
                                                                                                                             personal services occupancies,
                                                                                                                          f) every building required by the NBC to have a fire alarm system,
                                                                                                                         g) demolition and construction sites regulated under Section 5.6.,
                                                                                                                         h) storage areas in buildings or parts of buildings described in Article 3.2.1.1.,
                                                                                                                          i) outdoor areas where products described in Article 3.3.1.1. are stored,
                                                                                                                          j) every building, part of a building, and open area described in Article 4.1.1.1.,
                                                                                                                             and
                                                                                                                         k) every building, part of a building, and open area where processes and
                                                                                                                             operations described in Article 5.1.1.1. take place.

                                                                                                    2.8.1.2.          Supervisory Staff
                                                                                                                          1) Supervisory staff shall be trained in the fire emergency procedures described
                                                                                                                      in the fire safety plan before they are given any responsibility for fire safety. (See
                                                                                                                      Note A-2.8.1.2.(1).)
                                                                                                                          2) A sufficient number of supervisory staff shall be on duty in care, home-type care,
                                                                                                                      treatment and detention occupancies to carry out the emergency procedures outlined in
                                                                                                                      Clause 2.8.2.1.(3)(a). (See Note A-2.8.1.2.(2).)
                                                                                                                         3) In Group A, Division 1 assembly occupancies intended for an occupant load of
                                                                                                                      more than 60, at least one supervisory staff member shall be on duty in the building
                                                                                                                      to carry out the emergency procedures outlined in Clause 2.8.2.1.(3)(a) whenever
                                                                                                                      the building is open to the public.

                                                                                                    2.8.1.3.          Keys and Special Devices
                                                                                                                         1) Any keys or special devices needed to operate the fire alarm system or provide
                                                                                                                      access to any fire protection systems or equipment shall be readily available to on-duty
                                                                                                                      supervisory staff.

                                                                                                    2.8.2.            Fire Safety Plan
                                                                                                    2.8.2.1.          Measures in a Fire Safety Plan
                                                                                                                         1) For buildings, parts of buildings and areas described in Article 2.8.1.1., a fire
                                                                                                                      safety plan conforming to this Section shall be prepared in cooperation with the fire
                                                                                                                      department and other applicable regulatory authorities.
                                                                                                                         2) The fire safety plan shall be reviewed at intervals not greater than 12 months
                                                                                                                      to ensure that it takes account of changes in the use and other characteristics of the
                                                                                                                      building.
                                                                                                                         3) The fire safety plan shall include, in addition to the information required in
                                                                                                                      Articles 2.8.2.2. to 2.8.2.11., as applicable, information on
                                                                                                                         a) the emergency procedures to be carried out in case of fire, including
                                                                                                                                 i) sounding the fire alarm (see Note A-2.8.2.1.(3)(a)(i)),
                                                                                                                                ii) notifying the fire department,
                                                                                                                               iii) instructing occupants on the procedures to be followed
                                                                                                                                    when the fire alarm sounds,


                                                                                                    2-14 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                 2.8.2.4.

                                                                                                                               iv) evacuating occupants, including special provisions for
                                                                                                                                   persons requiring assistance (see Note A-2.8.2.1.(3)(a)(iv)),
                                                                                                                                   and
                                                                                                                                v) confining, controlling and extinguishing the fire,
                                                                                                                         b) the appointment and organization of designated supervisory staff to carry
                                                                                                                             out fire safety duties,
                                                                                                                          c) the training of supervisory staff and other occupants on their responsibilities
                                                                                                                             as regards fire safety,
                                                                                                                         d) the type, location and operation of the building fire emergency systems,
                                                                                                                             including diagrams,
                                                                                                                          e) the holding of fire drills,
                                                                                                                          f) the measures for controlling fire hazards in and around the building, and




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                                                                                                                         g) the inspection and maintenance of building facilities provided for the safety
                                                                                                                             of occupants.
                                                                                                                      (See Note A-2.8.2.1.(3).)

                                                                                                    2.8.2.2.          High Buildings

                                                                                                                         1) For buildings within the scope of Subsection 3.2.6. of Division B of the NBC,
                                                                                                                      the fire safety plan shall include
                                                                                                                          a) information on the training of supervisory staff in the use of the voice
                                                                                                                              communication system,
                                                                                                                         b) the procedures for the use of elevators,
                                                                                                                          c) information on the action to be taken by supervisory staff in initiating any
                                                                                                                              smoke control or other fire emergency systems installed in a building in the
                                                                                                                              event of fire until the fire department arrives,
                                                                                                                         d) instructions to the supervisory staff and fire department for the operation of
                                                                                                                              the systems referred to in Clause (c),
                                                                                                                          e) the procedures established to facilitate fire department access to the building
                                                                                                                              and fire location within the building, and
                                                                                                                          f) the test procedures described in Subsections 7.3.2. to 7.3.15., as appropriate
                                                                                                                              to the fire safety measure being used, in addition to those required by
                                                                                                                              Sections 7.1. and 7.2., unless otherwise specified in the fire safety plan.

                                                                                                    2.8.2.3.          Indoor and Outdoor Storage of Dangerous Goods

                                                                                                                          1) Where dangerous goods are stored or handled, the fire safety plan shall include
                                                                                                                      the names, addresses and telephone numbers of persons to be contacted in case of
                                                                                                                      fire during non-operating hours.

                                                                                                                         2) Where the dangerous goods referred to in Sentence (1) consist of dangerous goods
                                                                                                                      classified as radioactive materials, the fire safety plan shall also include
                                                                                                                          a) methods to control a fire emergency and to safely and efficiently recover
                                                                                                                              radioactive materials and equipment containing radioactive materials,
                                                                                                                          b) the names, addresses and telephone numbers of primary and alternative
                                                                                                                              sources of expert advice and assistance on radiation safety, and
                                                                                                                          c) the location of primary and alternative sources of radiation survey
                                                                                                                              instruments.

                                                                                                    2.8.2.4.          Indoor Storage of Combustible Products and Dangerous Goods

                                                                                                                         1) The fire safety plan for buildings or parts of buildings used for the storage
                                                                                                                      of products listed in Sentence 3.2.1.1.(1) shall include the information described in
                                                                                                                      Sentences (2) and (3).

                                                                                                                         2) The fire safety plan shall identify
                                                                                                                         a) the product classifications for each part of the building where products of
                                                                                                                            different classifications are stored,
                                                                                                                         b) the method of storage, including aisle widths for rack storage,
                                                                                                                         c) the maximum permitted height of storage for the building or part of the
                                                                                                                            building, if different,


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 2-15
                                                                                                    2.8.2.5.                                                                                             Division B

                                                                                                                         d) the maximum permitted size of individual storage areas, and
                                                                                                                         e) in sprinklered buildings, the sprinkler system design criteria, inside and
                                                                                                                            outside hose allowances, and results of the benchmark sprinkler system
                                                                                                                            main drain and waterflow tests.
                                                                                                                         3) Where the products stored include Group A plastics, rubber products, Level 2
                                                                                                                      or 3 aerosols, or dangerous goods, the fire safety plan shall identify their location and the
                                                                                                                      maximum quantity of each product being stored.

                                                                                                    2.8.2.5.          Outdoor Storage
                                                                                                                         1) The fire safety plan for outdoor areas used for the storage of products listed in




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                                                                                                                      Sentence 3.3.1.1.(1) shall identify
                                                                                                                         a) the location and classification of the products being stored,
                                                                                                                         b) the method of storage, including the clear spaces required and the maximum
                                                                                                                             permitted size of individual storage areas,
                                                                                                                         c) the location of fire alarm systems and firefighting equipment, and
                                                                                                                         d) the measures for controlling fire hazards in and around the outdoor storage
                                                                                                                             area.

                                                                                                    2.8.2.6.          Rooms for Storage Tanks
                                                                                                                         1) The fire safety plan for rooms for storage tanks referred to in Sentence 4.3.13.4.(1)
                                                                                                                      shall identify the liquids being stored as flammable liquids or combustible liquids and
                                                                                                                      the capacity of each storage tank.

                                                                                                    2.8.2.7.          Spill Control
                                                                                                                         1) The fire safety plan for buildings, parts of buildings, and open areas described in
                                                                                                                      Article 4.1.1.1. shall include a spill management plan that describes the measures to be
                                                                                                                      taken to direct the overflow of spilled liquids and water used for firefighting away from
                                                                                                                         a) buildings,
                                                                                                                         b) adjoining properties,
                                                                                                                          c) means of egress,
                                                                                                                         d) air intakes and openings that could allow vapour to enter the building,
                                                                                                                         e) fire alarm control panels,
                                                                                                                          f) fire department access routes,
                                                                                                                         g) valves controlling fire protection systems and the water supply for
                                                                                                                              firefighting,
                                                                                                                         h) fire department pumper connections or wall hydrants,
                                                                                                                          i) isolation valves controlling processes, and
                                                                                                                          j) valves controlling the flow of flammable liquids or combustible liquids.

                                                                                                    2.8.2.8.          Hazardous Processes and Operations
                                                                                                                         1) The fire safety plan for areas where processes and operations described in
                                                                                                                      Article 5.1.1.1. take place shall include
                                                                                                                         a) the location and identification of storage and use areas for specific products,
                                                                                                                              in conformance with Article 2.8.2.4.,
                                                                                                                         b) the names, addresses and telephone numbers of persons to be contacted in
                                                                                                                              case of fire during non-operating hours, and
                                                                                                                         c) where dangerous goods classified as radioactive materials are used or
                                                                                                                              handled, the information specified in Article 2.8.2.3.

                                                                                                    2.8.2.9.          Hot Works
                                                                                                                         1) The fire safety plan for areas where hot works are conducted shall include the
                                                                                                                      safety measures described in Section 5.2.

                                                                                                    2.8.2.10.         Laboratories
                                                                                                                         1) The fire safety plan for laboratories shall conform to Article 2.8.2.8.


                                                                                                    2-16 Division B                                                                         National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                  2.8.3.1.

                                                                                                    2.8.2.11.         Construction and Demolition Sites
                                                                                                                         1) Except as required in Sentence (2), prior to the commencement of construction,
                                                                                                                      alteration or demolition operations, a fire safety plan shall be prepared for the site
                                                                                                                      that includes
                                                                                                                          a) the designation and organization of site personnel to carry out fire safety
                                                                                                                              duties, including a fire watch service if applicable,
                                                                                                                          b) the emergency procedures to be followed in the event of a fire, including
                                                                                                                                 i) initiating a fire warning,
                                                                                                                                ii) notifying the fire department,
                                                                                                                               iii) instructing site personnel on the procedures to be followed
                                                                                                                                    once the warning has been initiated, and




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                                                                                                                               iv) confining, controlling and extinguishing the fire,
                                                                                                                          c) measures for controlling fire hazards in and around the building (see
                                                                                                                              Note A-2.8.2.11.(1)(c)), and
                                                                                                                          d) a maintenance procedure for firefighting measures required in Section 5.6.
                                                                                                                         2) Where construction, alteration or demolition operations are carried out in an
                                                                                                                      existing building that is required to have a fire safety plan conforming to this Section,
                                                                                                                      the fire safety plan shall take into account the changes occurring to the building.

                                                                                                    2.8.2.12.         Retention of Fire Safety Plans
                                                                                                                        1) The fire safety plan shall be kept in the building for reference by the fire
                                                                                                                      department, supervisory staff, the authority having jurisdiction, and other personnel.
                                                                                                                        2) The fire safety plan for a building within the scope of Subsection 3.2.6. of
                                                                                                                      Division B of the NBC shall be kept at the central alarm and control facility.
                                                                                                                        3) The fire safety plan for a building or facility within the scope of Sections 3.1., 4.1.,
                                                                                                                      and 5.1. shall be kept at the principal entrance to the building or facility.

                                                                                                    2.8.2.13.         Distribution
                                                                                                                          1) A copy of the fire emergency procedures and other duties for supervisory staff,
                                                                                                                      as laid down in the fire safety plan, shall be given to all supervisory staff.

                                                                                                    2.8.2.14.         Posting of Fire Emergency Procedures
                                                                                                                         1) At least one copy of the fire emergency procedures for a building or part of a
                                                                                                                      building shall be prominently posted in each floor area.
                                                                                                                         2) At least one copy of the fire emergency procedures for an outdoor storage site
                                                                                                                      shall be prominently posted at the outdoor storage site.
                                                                                                                        3) In every hotel and motel bedroom, the fire safety rules for occupants shall be
                                                                                                                      posted showing the locations of exits and the paths of travel to exits.
                                                                                                                          4) Where a fire alarm system has been installed with no provisions to transmit
                                                                                                                      a signal to the fire department, a sign shall be posted at each manually actuated
                                                                                                                      signalling box requesting that the fire department be notified, and including the
                                                                                                                      telephone number of that department.

                                                                                                    2.8.3.            Fire Drills
                                                                                                    2.8.3.1.          Fire Drill Procedures
                                                                                                                         1) The procedure for conducting fire drills shall be determined by the person in
                                                                                                                      responsible charge of the building, taking into consideration
                                                                                                                          a) the building occupancy and its fire hazards,
                                                                                                                         b) the safety features provided in the building,
                                                                                                                          c) the desirable degree of participation of occupants other than supervisory staff,
                                                                                                                         d) the number and degree of experience of participating supervisory staff,
                                                                                                                          e) the features of fire emergency systems installed in buildings within the scope
                                                                                                                             of Subsection 3.2.6. of Division B of the NBC, and
                                                                                                                          f) the requirements of the fire department.
                                                                                                                      (See Note A-2.8.3.1.(1).)


                                                                                                    National Fire Code of Canada 2020                                                                          Division B 2-17
                                                                                                    2.8.3.2.                                                                                            Division B

                                                                                                    2.8.3.2.          Fire Drill Frequency
                                                                                                                         1) Except as provided in Sentence (2), fire drills as described in Sentence 2.8.3.1.(1)
                                                                                                                      shall be held at intervals not greater than 12 months for the supervisory staff, except that
                                                                                                                         a) in daycare centres and in Group B major occupancies, such drills shall be held
                                                                                                                              at intervals not greater than one month,
                                                                                                                         b) in schools attended by children, total evacuation fire drills shall be held at
                                                                                                                              least 3 times in each of the fall and spring school terms, and
                                                                                                                         c) in buildings within the scope of Subsection 3.2.6. of Division B of the NBC,
                                                                                                                              such drills shall be held at intervals not greater than 2 months.
                                                                                                                         2) Fire drills in a laboratory shall be held at intervals not greater than 3 months.




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                                                                                                    Section 2.9. Tents and Air-Supported Structures
                                                                                                    2.9.1.            General
                                                                                                    2.9.1.1.          Tents and Air-Supported Structures
                                                                                                                         1) Tents and air-supported structures shall be designed and installed in conformance
                                                                                                                      with the NBC.

                                                                                                    2.9.2.            Materials
                                                                                                    2.9.2.1.          Flame-Retardant Treatments
                                                                                                                         1) Flame-retardant treatments shall be renewed as often as is required to ensure
                                                                                                                      that the material will pass the match flame test in NFPA 705, “Recommended Practice
                                                                                                                      for a Field Flame Test for Textiles and Films.” (See Note A-2.3.2.2.(1).)

                                                                                                    2.9.3.            Fire Hazards and Control
                                                                                                    2.9.3.1.          Electrical Systems
                                                                                                                        1) The electrical system in a tent or air-supported structure shall be maintained
                                                                                                                      and operated in a safe manner.
                                                                                                                         2) Portable electrical systems shall be inspected for fire hazards and defects shall
                                                                                                                      be corrected before the tent or air-supported structure is occupied by the public.
                                                                                                                         3) The electrical system and equipment in a tent or air-supported structure,
                                                                                                                      including electrical fuses and switches, shall be inaccessible to the public.
                                                                                                                         4) Cables on the ground in areas used by the public in a tent or air-supported
                                                                                                                      structure shall be placed in trenches or protected by covers to prevent damage from
                                                                                                                      traffic.

                                                                                                    2.9.3.2.          Combustible Materials
                                                                                                                          1) Hay, straw, shavings or similar combustible materials other than necessary
                                                                                                                      for the daily feeding and care of animals shall not be permitted within a tent or
                                                                                                                      air-supported structure used for an assembly occupancy, except that sawdust and shavings
                                                                                                                      are permitted to be used if kept damp.

                                                                                                    2.9.3.3.          Smoking and Open Flame Devices
                                                                                                                         1) Smoking and open flame devices shall not be permitted in a tent or air-supported
                                                                                                                      structure while it is occupied by the public.

                                                                                                    2.9.3.4.          Fire Watch
                                                                                                                         1) A person shall be employed to watch for fires when a tent or air-supported
                                                                                                                      structure is occupied by more than 1 000 persons.


                                                                                                    2-18 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                             2.10.4.1.

                                                                                                                         2) A person employed to watch for fires as described in Sentence (1) shall
                                                                                                                         a) be familiar with all fire safety features, including the fire safety plan as
                                                                                                                            provided in conformance with Section 2.8. and the condition of exits, and
                                                                                                                         b) patrol the area to ensure that the means of egress are kept clear and that
                                                                                                                            requirements of the authority having jurisdiction are enforced.

                                                                                                    2.9.3.5.          Fire Alarm System
                                                                                                                         1) Where tents and air-supported structures are designed to accommodate more
                                                                                                                      than 1 000 persons, a fire alarm and emergency communication system shall be
                                                                                                                      provided. (See Note A-2.9.3.5.(1).)




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                                                                                                    2.9.3.6.          Blower Engines
                                                                                                                         1) Internal combustion engines used to power supplementary blowers required by
                                                                                                                      the NBC shall be operated and maintained in conformance with Section 6.5.


                                                                                                    Section 2.10. Daycare Centres
                                                                                                    2.10.1.           Construction
                                                                                                    2.10.1.1.         Construction
                                                                                                                         1) Daycare centres shall be constructed in conformance with the NBC.

                                                                                                    2.10.2.           Supervision of Children
                                                                                                    2.10.2.1.         Supervision of Children
                                                                                                                         1) There shall be at least one staff member for each 10 children 2 years of age and
                                                                                                                      older and, where children under the age of 2 years are cared for, there shall be at least
                                                                                                                      one additional staff member for every 5 such children.
                                                                                                                         2) Where handicapped children are being cared for in a centre, sufficient staff shall
                                                                                                                      be present to escort the children to safety during the period they are in the centre.

                                                                                                    2.10.3.           Combustible Materials
                                                                                                    2.10.3.1.         Combustible Materials Attached to Walls
                                                                                                                         1) Combustible materials, such as artwork and teaching materials, that are
                                                                                                                      attached to walls shall not exceed 20% of the area of such walls.

                                                                                                    2.10.3.2.         Waste Receptacles
                                                                                                                         1) Waste receptacles shall be made of noncombustible materials.

                                                                                                    2.10.3.3.         Flammable and Combustible Liquids
                                                                                                                         1) Flammable liquids and combustible liquids shall be stored in conformance with
                                                                                                                      Part 4 and in areas inaccessible to children.

                                                                                                    2.10.4.           Fire Safety Measures
                                                                                                    2.10.4.1.         Fire Prevention Inspections
                                                                                                                          1) Staff members of daycare centres in which more than 10 children are cared for
                                                                                                                      shall conduct fire prevention inspections in conformance with the fire safety plan
                                                                                                                      at intervals not greater than one month.


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 2-19
                                                                                                    2.11.1.1.                                                                                         Division B

                                                                                                    Section 2.11. Boarding and Lodging Houses
                                                                                                    2.11.1.           General
                                                                                                    2.11.1.1.         Construction
                                                                                                                        1) Buildings altered or occupied for purposes of providing accommodation for
                                                                                                                      boarders, lodgers or roomers shall conform to the NBC.

                                                                                                    2.11.2.           Fire Safety Measures




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                                                                                                    2.11.2.1.         Portable Extinguishers
                                                                                                                         1) At least one portable extinguisher having a 2-A rating shall be installed on each
                                                                                                                      storey of a building described in Article 2.11.1.1.


                                                                                                    Section 2.12. Covered Malls
                                                                                                    2.12.1.           General
                                                                                                    2.12.1.1.         Use
                                                                                                                        1) Except as permitted in Sentence (2), covered malls designed for ornamental and
                                                                                                                      pedestrian oriented uses only shall not be used for merchandising or public activities.
                                                                                                                        2) A covered mall referred to in Sentence (1) is permitted to be used for
                                                                                                                      merchandising or public activities on a temporary basis provided
                                                                                                                         a) it conforms to Articles 2.12.1.2. to 2.12.1.9., and
                                                                                                                        b) the fire safety plan required in Section 2.8. includes additional provisions to
                                                                                                                            offset any hazard that may be created by such activity.

                                                                                                    2.12.1.2.         Adequacy of Sprinkler System
                                                                                                                         1) Merchandising or public activities in a sprinklered covered mall described
                                                                                                                      in Article 2.12.1.1. shall not be permitted where such activity will create a hazard
                                                                                                                      exceeding the design criteria for which the sprinkler system was designed.

                                                                                                    2.12.1.3.         Alternatives to Spatial Separation
                                                                                                                         1) When a covered mall having a width of not less than 9 m has been provided
                                                                                                                      for the purpose of considering each portion of the building separated by the mall
                                                                                                                      as a separate building, merchandising or public activities are permitted within the
                                                                                                                      required 9 m width provided alternative protection is installed in conformance with
                                                                                                                      Article 1.2.1.1. of Division A.

                                                                                                    2.12.1.4.         Access to Exits
                                                                                                                         1) Access to exits within a covered mall shall be provided and maintained in
                                                                                                                      conformance with Subsection 2.7.1.

                                                                                                    2.12.1.5.         Access to Fire Protection Equipment
                                                                                                                         1) Where a covered mall is used for merchandising or public activities, the activity
                                                                                                                      shall be arranged so that access to fire protection equipment, including sprinkler
                                                                                                                      control valves, fire hose stations, portable extinguishers and fire alarm stations, is
                                                                                                                      not restricted.

                                                                                                    2.12.1.6.         Decorative Materials
                                                                                                                        1) Decorative materials used for merchandising or public activities in a covered
                                                                                                                      mall shall conform to Subsection 2.3.2.


                                                                                                    2-20 Division B                                                                      National Fire Code of Canada 2020
                                                                                                    Division B                                                                                          2.13.2.5.

                                                                                                    2.12.1.7.         Flammable and Combustible Liquids and Flammable Gases

                                                                                                                         1) Flammable liquids, combustible liquids and dangerous goods classified as flammable
                                                                                                                      gases shall not be used or displayed in a covered mall.

                                                                                                    2.12.1.8.         Fuelled Equipment

                                                                                                                         1) Where a covered mall is used for the display of fuelled equipment, batteries
                                                                                                                      shall be disconnected and caps for fuel tanks shall be locked or secured against
                                                                                                                      tampering.

                                                                                                    2.12.1.9.         Propane-Fuelled Automotive Vehicles




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                                                                                                                         1) A propane-fuelled automotive vehicle shall not be displayed in a covered mall
                                                                                                                      unless
                                                                                                                         a) the propane fuel tank is permanently installed,
                                                                                                                         b) the fuel system is equipped with an automatic stop-fill valve,
                                                                                                                         c) the fuel cut-off valve is closed,
                                                                                                                         d) fuel tank filling connections are locked or secured against tampering, and
                                                                                                                         e) batteries are disconnected.


                                                                                                    Section 2.13. Helicopter Landing Areas on Roofs
                                                                                                    2.13.1.           Construction

                                                                                                    2.13.1.1.         Construction

                                                                                                                         1) Helicopter landing areas on roofs shall be constructed in conformance with
                                                                                                                      the requirements for heliports contained in TC SOR/96-433, “Canadian Aviation
                                                                                                                      Regulations – Part III.”

                                                                                                    2.13.2.           Fire Safety Measures

                                                                                                    2.13.2.1.         Fire Separations

                                                                                                                         1) Areas or rooms communicating with the landing area shall be separated
                                                                                                                      therefrom by a fire separation conforming to the NBC.

                                                                                                    2.13.2.2.         Smoking

                                                                                                                         1) Smoking shall not be permitted on helicopter landing areas on roofs, and signs
                                                                                                                      conforming to Article 2.4.2.2. shall be placed at the exits from the rooftop and in the
                                                                                                                      vicinity of the landing area.

                                                                                                    2.13.2.3.         Fire Watch

                                                                                                                         1) Two persons knowledgeable in the use of firefighting equipment shall be in
                                                                                                                      attendance on the roof deck at each landing area when it is in use.

                                                                                                    2.13.2.4.         Refuelling, Repair and Maintenance Operations

                                                                                                                         1) Helicopter refuelling, repair and maintenance operations shall not be carried
                                                                                                                      out on helicopter landing areas on roofs except in an emergency.

                                                                                                    2.13.2.5.         Inspection of Separators

                                                                                                                         1) Aviation fuel and oil separators provided in the drainage system shall be
                                                                                                                      inspected at intervals not greater than 7 days to ensure safe operation and shall be
                                                                                                                      serviced when necessary.


                                                                                                    National Fire Code of Canada 2020                                                                    Division B 2-21
                                                                                                    2.14.1.1.                                                                                            Division B

                                                                                                    Section 2.14. Farm Buildings
                                                                                                    2.14.1.           Fire Hazards and Control
                                                                                                    2.14.1.1.         Electrical Systems
                                                                                                                         1) Temporary electrical equipment and wiring, including cord-connected electrical
                                                                                                                      equipment, used in wet or corrosive environments in farm buildings shall conform to
                                                                                                                      CSA C22.1, “Canadian Electrical Code, Part I.”
                                                                                                                          2) Inspection of all fixed, portable and temporary electrical equipment and wiring




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                                                                                                                      in farm buildings greater than 600 m2 in building area or greater than 3 storeys in building
                                                                                                                      height shall be completed by a person qualified to perform such inspection at intervals
                                                                                                                      not greater than
                                                                                                                          a) 12 months for farm buildings containing wet or corrosive environments, and
                                                                                                                          b) 3 years for all other farm buildings.
                                                                                                                         3) A thermographic inspection of the electrical system in farm buildings greater than
                                                                                                                      600 m2 in building area or greater than 3 storeys in building height shall be completed by
                                                                                                                      a person qualified to perform such inspection at intervals not greater than 3 years.
                                                                                                                         4) Deficiencies identified during the inspections required in Sentences (2) and (3)
                                                                                                                      shall be repaired as quickly as practicable.
                                                                                                                         5) Records of the inspections required in Sentences (2) and (3) shall be retained in
                                                                                                                      conformance with Article 2.2.1.2. of Division C.

                                                                                                    2.14.1.2.         Mechanical Equipment
                                                                                                                         1) Mechanical equipment used in wet or corrosive environments in farm buildings
                                                                                                                      shall be maintained so as not to constitute an undue fire hazard.
                                                                                                                          2) Inspection of mechanical equipment in farm buildings greater than 600 m2 in
                                                                                                                      building area or greater than 3 storeys in building height to identify any damage or
                                                                                                                      deterioration shall be completed by a person qualified to perform such inspection
                                                                                                                      at intervals not greater than 12 months.
                                                                                                                         3) Deficiencies identified during the inspection required in Sentence (2) shall be
                                                                                                                      repaired so as not to constitute an undue fire hazard.
                                                                                                                         4) Records of the inspection required in Sentence (2) shall be retained in
                                                                                                                      conformance with Article 2.2.1.2. of Division C.

                                                                                                    2.14.2.           Signage
                                                                                                                      (See Note A-2.14.2.)

                                                                                                    2.14.2.1.         Warning Signs
                                                                                                                         1) A sign indicating the danger of potentially hazardous concentrations of
                                                                                                                      flammable or toxic gases or vapours shall be installed at each access to a liquid manure
                                                                                                                      storage tank or below-floor manure transfer chamber.
                                                                                                                         2) A sign indicating the danger of silo gas shall be installed adjacent to each chute
                                                                                                                      or ladder on a tower silo.
                                                                                                                         3) A sign indicating the danger of entrapment shall be installed at each access to a
                                                                                                                      grain storage structure or bottom-unloading tower silo.
                                                                                                                         4) A sign indicating the danger of stored pesticides shall be installed at each
                                                                                                                      entrance to a pesticide storage area.
                                                                                                                         5) A sign indicating the danger of unsafe oxygen levels shall be installed at each
                                                                                                                      entrance to a controlled-atmosphere storage area.


                                                                                                    2-22 Division B                                                                         National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                        2.15.1.1.

                                                                                                    2.14.3.             Ambient Conditions
                                                                                                    2.14.3.1.           Control of Gases and Vapours
                                                                                                                           1) Rooms or parts of farm buildings used for the storage of products capable of
                                                                                                                        releasing flammable or toxic gases or vapours under normal ambient conditions shall
                                                                                                                        be provided with a ventilation system in accordance with Section 2.4. of Division B of
                                                                                                                        the NBC to exhaust such gases or vapours outdoors to an area where the gases and
                                                                                                                        vapours will not return to the farm building. (See Note A-2.14.3.1.(1).)

                                                                                                    2.14.3.2.           Below-Floor Storage Areas for Liquid Manure
                                                                                                                           1) Except as provided in Sentence (2), farm buildings housing livestock with a




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                                                                                                                        below-floor storage area for liquid manure shall be provided with a ventilation system
                                                                                                                        conforming to Article 2.4.2.5. of Division B of the NBC.
                                                                                                                           2) The requirements of Sentence 2.4.2.5.(1) of Division B of the NBC are permitted
                                                                                                                        to be waived when
                                                                                                                            a) the farm building referred to in Sentence (1) is not occupied, and
                                                                                                                            b) the liquid manure has been removed from the storage area.
                                                                                                                        (See Note A-2.14.3.2.(2).)


                                                                                                    Section 2.15. Objectives and Functional Statements
                                                                                                    2.15.1.             Objectives and Functional Statements
                                                                                                    2.15.1.1.           Attribution to Acceptable Solutions
                                                                                                                            1) For the purposes of compliance with this Code as required in
                                                                                                                        Clause 1.2.1.1.(1)(b) of Division A, the objectives and functional statements attributed
                                                                                                                        to the acceptable solutions in this Part shall be the objectives and functional statements
                                                                                                                        listed in Table 2.15.1.1. (See Note A-1.1.2.1.(1).)

                                                                                                                         Table 2.15.1.1.                                              Table 2.15.1.1. (Continued)
                                                                                                      Objectives and Functional Statements Attributed to the
                                                                                                                  Acceptable Solutions in Part 2                     Provision          Functional Statements and Objectives (1)
                                                                                                               Forming Part of Sentence 2.15.1.1.(1)                 2.1.3.4. Protection of Combustible Sprinkler Piping

                                                                                                     Provision          Functional Statements and Objectives (1)     (1)         [F06,F82-OS1.2]

                                                                                                     2.1.2.2. Hazardous Activities                                               [F06,F82-OP1.2]

                                                                                                     (1)                                                                         [F06,F82-OP3.1]
                                                                                                                 [F01,F30,F31,F43,F32,F81-OS3.1,OS3.2,OS3.3,OS3.4]
                                                                                                                                                                     2.1.3.5. Special Fire Suppression Systems
                                                                                                                 [F01-OP1.2]
                                                                                                                 [F01-OS1.1]                                         (2)         [F02,F81-OS1.1]

                                                                                                     (2)         [F02,F03-OS1.2] [F10-OS1.5]                                     [F02,F81-OP1.1]

                                                                                                     (3)         [F02,F03-OS1.2] [F10-OS1.5]                         (3)         [F02,F81-OS1.2] [F81-OS1.4]

                                                                                                     (4)         [F02,F03-OS1.2] [F10-OS1.5]                                     [F02,F81-OP1.2] [F81-OP1.4]

                                                                                                     2.1.3.1. Fire Alarm, Standpipe and Sprinkler Systems            (4)         [F02,F81-OS1.2]

                                                                                                     (2)                                                                         [F02,F81-OP1.2]
                                                                                                                 [F02-OP1.2]
                                                                                                                                                                     (5)         [F02,F81-OS1.1]
                                                                                                                 [F02-OS1.2]
                                                                                                     2.1.3.3. Smoke Alarms                                                       [F02,F81-OP1.2]
                                                                                                                                                                     (6)         [F02-OP1.2]
                                                                                                     (1)         [F81,F11-OS1.5]
                                                                                                                                                                                 [F02-OS1.2]
                                                                                                     (2)         [F11-OS1.5]
                                                                                                                                                                     (7)         [F82,F12-OP1.2]
                                                                                                     (3)         [F11,F81-OS1.5]
                                                                                                                                                                                 [F82,F12-OS1.2]
                                                                                                                                                                     (8)         [F12-OP1.2]
                                                                                                                                                                                 [F12-OS1.2]


                                                                                                    National Fire Code of Canada 2020                                                                                  Division B 2-23
                                                                                                    2.15.1.1.                                                                                                          Division B

                                                                                                                       Table 2.15.1.1. (Continued)                                       Table 2.15.1.1. (Continued)

                                                                                                     Provision          Functional Statements and Objectives (1)        Provision           Functional Statements and Objectives (1)
                                                                                                    2.1.3.6. Inspection, Maintenance and Testing of Fire Safety         (5)         [F82-OP1.2]
                                                                                                    Devices
                                                                                                                                                                                    [F82-OS1.2]
                                                                                                    (1)          [F82-OS1.4]
                                                                                                                                                                        2.2.3.1. Damaged or Removed Encapsulation Materials
                                                                                                                 [F82-OP1.4]
                                                                                                                                                                        (1)         [F02-OP1.2]
                                                                                                    2.1.4.1. Posting
                                                                                                                                                                                    [F02-OS1.2]
                                                                                                    (1)          [F12,F10,F82,F81-OS1.1,OS1.2]
                                                                                                                                                                        2.3.1.2. Movable Partitions and Screens




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                                                                                                    2.1.5.1. Selection and Installation
                                                                                                                                                                        (1)         [F02-OS1.2]
                                                                                                    (1)          [F02-OS1.2]
                                                                                                                                                                        2.3.1.3. Decorative Materials
                                                                                                                 [F02-OP1.2]
                                                                                                                                                                        (1)         [F02-OS1.2]
                                                                                                    (3)          [F02,F12-OS1.2]
                                                                                                                                                                        2.3.1.4. Interconnected Floor Spaces
                                                                                                                 [F02,F12-OP1.2]
                                                                                                                                                                        (1)         [F02-OP1.2]
                                                                                                    (4)          [F02,F12-OS1.2]
                                                                                                                                                                                    [F02-OS1.2]
                                                                                                                 [F02,F12-OP1.2]
                                                                                                                                                                        2.3.2.1. Drapes, Curtains and Decorative Materials
                                                                                                    (5)          [F02,F12-OS1.2]
                                                                                                                                                                        (1)         [F02-OP1.2]
                                                                                                                 [F02,F12-OP1.2]
                                                                                                                                                                                    [F02-OS1.2,OS1.5]
                                                                                                    (6)          [F12,F06-OS1.2]
                                                                                                                                                                        2.3.2.2. Flame-Retardant Treatments
                                                                                                                 [F12,F06-OP1.2]
                                                                                                                                                                        (1)         [F82-OP1.2]
                                                                                                    (7)          [F80-OP1.2]
                                                                                                                                                                                    [F82-OS1.2,OS1.5]
                                                                                                                 [F80-OS1.2]
                                                                                                                                                                        2.3.2.3. Textiles in Group B Occupancies
                                                                                                    2.2.1.1. Fire Separations
                                                                                                                                                                        (1)         [F02-OP1.2]
                                                                                                    (2)          [F03-OP1.2] Applies to conformance with the NBC.
                                                                                                                                                                                    [F02-OS1.2]
                                                                                                                 [F03-OS1.2] Applies to conformance with the NBC.
                                                                                                                                                                        (2)         [F02-OS1.2]
                                                                                                    2.2.1.2. Damage to Fire Separations and Fire Protection Materials
                                                                                                                                                                                    [F02-OP1.2]
                                                                                                    (1)          [F03-OP1.2]
                                                                                                                                                                        2.4.1.1. Accumulation of Combustible Materials
                                                                                                                 [F03-OS1.2]
                                                                                                                                                                        (1)         [F01,F02-OS1.2,OS1.1]
                                                                                                    (2)          [F03-OP1.2]
                                                                                                                                                                                    [F01,F02-OP1.2,OP1.1]
                                                                                                                 [F03-OS1.2]
                                                                                                                                                                        (2)         [F01,F02-OS1.2]
                                                                                                    2.2.2.2. Damage to Closures
                                                                                                                                                                                    [F01,F02-OP1.2]
                                                                                                    (1)          [F82-OP1.2]
                                                                                                                                                                        (3)         [F01,F02-OS1.2]
                                                                                                                 [F82-OS1.2]
                                                                                                                                                                                    [F01,F02-OP1.2]
                                                                                                    2.2.2.3. Protective Guarding Devices
                                                                                                                                                                        (4)         [F01,F02-OS1.2]
                                                                                                    (1)          [F81-OP1.2]
                                                                                                                                                                                    [F01,F02-OP1.2]
                                                                                                                 [F81-OS1.2]
                                                                                                                                                                        (5)         [F02-OS1.2]
                                                                                                    2.2.2.4. Inspection and Maintenance
                                                                                                                                                                                    [F02-OP1.2]
                                                                                                    (1)          [F82-OP1.2]
                                                                                                                                                                        (6)         [F01-OS1.2,OS1.1]
                                                                                                                 [F82-OS1.2]
                                                                                                                                                                                    [F01,F02-OP1.2,OP1.1]
                                                                                                    (2)          [F82-OP1.2]
                                                                                                                                                                        2.4.1.2. Storage Rooms for Combustible Waste Materials
                                                                                                                 [F82-OS1.2]
                                                                                                                                                                        (1)         [F03,F02-OS1.2]
                                                                                                    (3)          [F82-OP1.2]
                                                                                                                                                                                    [F03,F02-OP1.2]
                                                                                                                 [F82-OS1.2]
                                                                                                                                                                        2.4.1.3. Waste Receptacles
                                                                                                    (4)          [F81-OP1.2]
                                                                                                                                                                        (1)         [F01-OS1.1] Applies to portion of Code text: “… be
                                                                                                                 [F81-OS1.2]                                                        removed from the premises.”




                                                                                                    2-24 Division B                                                                                     National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                           2.15.1.1.

                                                                                                                         Table 2.15.1.1. (Continued)                                   Table 2.15.1.1. (Continued)

                                                                                                     Provision            Functional Statements and Objectives (1)   Provision             Functional Statements and Objectives (1)
                                                                                                     (2)         [F01-OS1.1] Applies to the storage of combustible   2.5.1.4. Access to Fire Department Connections
                                                                                                                 materials and ashes in the same container.
                                                                                                                                                                     (1)         [F12-OP1.2]
                                                                                                     (3)         [F03-OS1.2]
                                                                                                                                                                                 [F12-OS1.2]
                                                                                                                 [F03-OP1.2]
                                                                                                                                                                     2.5.1.5. Maintenance of Fire Department Access
                                                                                                     (4)         [F03,F02,F01-OS1.2]
                                                                                                                                                                     (1)         [F12-OP1.2]
                                                                                                                 [F03,F02,F01-OP1.2]
                                                                                                                                                                                 [F12-OS1.2]
                                                                                                     2.4.1.4. Lint Traps for Laundry Equipment




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                                                                                                                                                                     (2)         [F12-OP1.2]
                                                                                                     (1)         [F01-OS1.1]
                                                                                                                                                                                 [F12-OS1.2]
                                                                                                     2.4.2.1. Smoking Areas
                                                                                                                                                                     2.6.1.2. Coal and Wood Bins
                                                                                                     (1)         [F01-OS1.1]
                                                                                                                                                                     (1)         [F01-OP1.1]
                                                                                                     (3)         [F01-OS1.1]
                                                                                                                                                                                 [F01-OS1.1]
                                                                                                     2.4.2.2. Signs
                                                                                                                                                                     2.6.1.3. Hoods, Ducts and Filters
                                                                                                     (1)         [F01-OS1.1]
                                                                                                                                                                     (1)         [F01,F02-OP1.2]
                                                                                                     2.4.3.1. Open Flames in Processions
                                                                                                                                                                                 [F01,F02-OS1.2]
                                                                                                     (1)         [F01-OS1.1]
                                                                                                                                                                     2.6.1.4. Chimneys, Flues and Flue Pipes
                                                                                                     2.4.3.2. Flaming Meals and Drinks
                                                                                                                                                                     (1)         [F01-OP1.2] [F82-OP1.1]
                                                                                                     (1)         [F01-OS1.1]
                                                                                                                                                                                 [F01-OS1.2] [F82-OS1.1]
                                                                                                     (2)         [F01-OS1.1]
                                                                                                                                                                     (2)         [F01-OP1.2]
                                                                                                     (3)         [F01-OS1.1]
                                                                                                                                                                                 [F01-OS1.2]
                                                                                                     (4)         [F12,F02-OS1.2]
                                                                                                                                                                     (3)         [F82-OP1.2,OP1.1]
                                                                                                                 [F12,F02-OP1.2]
                                                                                                                                                                                 [F82-OS1.1,OS1.2]
                                                                                                     2.4.3.3. Devices Having Open Flames
                                                                                                                                                                                 [F82-OS3.4]
                                                                                                     (1)         [F01-OS1.1]                                                     (a) [F82-OS3.1] Applies to portion of Code text: “… any
                                                                                                     2.4.4.1. Flammable and Combustible Liquids                                  structural deficiency or decay …”
                                                                                                     (2)         [F01-OS1.1]                                         2.6.1.5. Clearances
                                                                                                     2.4.4.2. Flammable Gases                                        (1)         [F01-OP1.2,OP1.1]
                                                                                                     (1)         [F01-OS1.1]                                                     [F01-OS1.1,OS1.2]
                                                                                                     2.4.5.1. Open Air Fires                                         (2)         [F01-OP1.2,OP1.1]
                                                                                                     (1)         [F01,F03,F02-OP1.2]                                             [F01-OS1.1,OS1.2]
                                                                                                                 [F01,F03,F02-OS1.2]                                 2.6.1.6. Operation and Maintenance Procedures
                                                                                                     2.4.6.1. Security                                               (1)         [F01,F81,F82-OP1.2,OP1.1]
                                                                                                     (1)         [F34-OS1.1,OS1.2]                                               [F81,F82-OS3.4]
                                                                                                                 [F34-OP3.1]                                                     [F01,F81,F82-OS1.1,OS1.2]
                                                                                                     2.4.7.1. Use and Maintenance                                    (2)         [F82-OP1.2]
                                                                                                     (1)         [F01,F82,F81-OS1.1]                                             [F82-OS1.2]
                                                                                                                 [F01,F82,F81-OP1.1]                                 2.6.1.7. Ventilation Shafts
                                                                                                     2.5.1.2. Access Panels and Windows                              (1)         [F01,F81-OP1.2]
                                                                                                     (1)         [F12-OP1.2]                                                     [F01,F81-OS1.2]
                                                                                                                 [F12-OS1.2]                                         2.6.1.8. Repairs and Renovations
                                                                                                     2.5.1.3. Access to Roof                                         (1)         [F02,F03-OP1.2]
                                                                                                     (1)         [F12-OP1.2]                                                     [F02,F03-OS1.2] [F01-OS1.1]
                                                                                                                 [F12-OS1.2]




                                                                                                    National Fire Code of Canada 2020                                                                                     Division B 2-25
                                                                                                    2.15.1.1.                                                                                                                     Division B

                                                                                                                         Table 2.15.1.1. (Continued)                                               Table 2.15.1.1. (Continued)

                                                                                                     Provision             Functional Statements and Objectives (1)              Provision             Functional Statements and Objectives (1)
                                                                                                    (2)            [F81,F43-OS1.1]                                               (3)         [F10-OS3.7]
                                                                                                                   [F81,F43-OH5]                                                 2.7.1.6. Maintenance
                                                                                                                   [F81,F43-OP1.1]                                               (1)         [F12,F82-OP1.2]
                                                                                                    2.6.1.9. Commercial Cooking Equipment                                                    [F12,F82-OS1.2]
                                                                                                    (1)            [F01-OS1.1,OS1.2] [F02,F81-OS1.2]                                         [F10,F12,F82-OS3.7]
                                                                                                                   [F02,F81-OP1.2]                                               2.7.1.7. Exterior Passageways and Exit Stairs




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                                                                                                    (2)            [F01-OS1.2,OS1.1] [F81,F82-OS1.2]                             (1)         [F12-OP1.2]
                                                                                                                   [F01,F81,F82-OP1.2]                                                       [F12-OS1.2]
                                                                                                    (3)            [F82-OS1.1] [F02-OS1.2]                                                   [F10,F12-OS3.7] [F30-OS3.1]
                                                                                                                   [F02-OP1.2]                                                   (2)         [F82,F12-OS1.2]
                                                                                                    (4)            [F01-OS1.1]                                                               [F82,F12-OP1.2]
                                                                                                    (5)            [F12-OS1.2]                                                               [F82,F10,F12-OS3.7] [F82,F30-OS3.1]
                                                                                                                   [F12-OP1.2]                                                   2.7.1.8. Free of Obstruction
                                                                                                    (6)            [F01,F81,F82-OS1.1]                                           (1)         [F10-OS3.7]
                                                                                                    (7)            [F01,F81,F82-OS1.1]                                           2.7.2.1. Exit Doors
                                                                                                    2.6.2.2. Outdoor Incinerators                                                (1)         [F82-OP1.2]
                                                                                                    (1)            [F03-OS1.2] Applies to portion of Code text: “… except                    [F82-OS3.7]
                                                                                                                   that the flue venting an incinerator shall not serve as the
                                                                                                                   chute conveying waste material to the incinerator.”                       [F82-OS1.2]
                                                                                                                   [F03-OS1.2] [F82,F81-OS1.1]                                   (2)         [F82-OS3.7]
                                                                                                    2.6.2.3. Spark Arresters                                                     (3)         [F82-OS3.7]

                                                                                                    (1)            [F81,F82-OS1.1]                                               (4)         [F82-OS3.7]

                                                                                                    (2)            [F82,F01-OS1.1]                                               2.7.3.1. Installation and Maintenance

                                                                                                    2.6.3.1. Use                                                                 (2)         [F10-OS3.7]

                                                                                                    (1)            [F02-OP1.2]                                                   2.8.1.2. Supervisory Staff

                                                                                                                   [F02-OS1.2] [F01-OS1.4,OS1.5]                                 (1)         [F12-OP1.2]
                                                                                                    2.6.3.2. Security                                                                        [F12-OS1.2,OS1.5]

                                                                                                    (1)            [F34-OS1.1]                                                   (2)         [F12-OS1.5,OS1.2] [F01-OS1.1] [F02-OS1.2]

                                                                                                                   [F34-OS3.3]                                                   (3)         [F12-OS1.5,OS1.2] [F01-OS1.1] [F02-OS1.2]

                                                                                                                   [F34-OP1.1]                                                   2.8.1.3. Keys and Special Devices

                                                                                                    2.7.1.2. Open Floor Areas                                                    (1)         [F12-OP1.2]

                                                                                                    (2)            [F10,F05-OS3.7]                                                           [F12-OS1.5,OS1.2]

                                                                                                    (3)            [F10-OS3.7]                                                   2.8.2.1. Measures in a Fire Safety Plan

                                                                                                    (4)            [F10-OS3.7]                                                   (1)         [F12-OP1.2]
                                                                                                    2.7.1.3. Occupant Load                                                                   [F12-OS1.2]

                                                                                                    (1)            [F10-OS3.7]                                                   (2)         [F13,F12-OP1.2] [F01,F82-OP1.1] [F02,F82-OP1.2]

                                                                                                    (2)            [F10-OS3.7]                                                               [F11,F13,F12,F10-OS1.5,OS1.2] [F01,F82-OS1.1]
                                                                                                                                                                                             [F02,F82-OS1.2]
                                                                                                    2.7.1.4. Signs
                                                                                                    (1)            [F10-OS3.7]
                                                                                                    (2)            [F10-OS3.7]
                                                                                                    (3)            [F10-OS3.7]
                                                                                                    2.7.1.5. Nonfixed Seating
                                                                                                    (1)            [F10-OS3.7]
                                                                                                    (2)            [F10-OS3.7]


                                                                                                    2-26 Division B                                                                                              National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                         2.15.1.1.

                                                                                                                       Table 2.15.1.1. (Continued)                                     Table 2.15.1.1. (Continued)

                                                                                                     Provision            Functional Statements and Objectives (1)   Provision           Functional Statements and Objectives (1)
                                                                                                     (3)         (a)(i) [F12,F13-OP1.2]                              2.8.2.12. Retention of Fire Safety Plans
                                                                                                                 (a)(ii) [F13-OP1.2]
                                                                                                                                                                     (1)         [F12-OP1.2]
                                                                                                                 (a)(iii) [F11-OP1.2]
                                                                                                                 (a)(v) [F02-OP1.2]                                              [F12-OS1.5,OS1.2]
                                                                                                                 (b) to(d) [F12-OP1.2]                               (2)         [F12-OP1.2]
                                                                                                                 (f) [F01-OP1.1]
                                                                                                                 (g) [F82-OP1.2]                                                 [F12-OS1.2,OS1.5]
                                                                                                                 (a)(i) [F11,F13-OS1.5]                              (3)         [F12-OS1.2,OS1.5]




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                 (a)(ii) [F13-OS1.5,OS1.2]                                       [F12-OP1.2]
                                                                                                                 (a)(iii) [F11-OS1.2,OS1.5]
                                                                                                                 (a)(iv) [F10-OS1.5]                                 2.8.2.13. Distribution
                                                                                                                 (a)(v) [F02-OS1.2]                                  (1)         [F12,F13-OP1.2] [F01,F82-OP1.1] [F02,F82-OP1.2]
                                                                                                                 (b) to (d) [F12-OS1.2,OS1.5]
                                                                                                                 (e) [F10,F12-OS1.5]                                             [F11,F13,F12,F10-OS1.2,OS1.5] [F01,F82-OS1.1]
                                                                                                                 (f) [F01-OS1.1]                                                 [F02,F82-OS1.2]
                                                                                                                 (g) [F82-OS1.2,OS1.5]                               2.8.2.14. Posting of Fire Emergency Procedures
                                                                                                     2.8.2.2. High Buildings                                         (1)         [F10-OS1.5]
                                                                                                     (1)         [F02,F12,F13-OP1.2]                                 (2)         [F81,F12-OH5]
                                                                                                                 [F02,F12,F11,F13,F36-OS1.5,OS1.2]                               [F81,F12-OP3.1]
                                                                                                     2.8.2.3. Indoor and Outdoor Storage of Dangerous Goods          (3)         [F10-OS1.5]
                                                                                                     (1)         [F12-OS1.1]                                         (4)         [F13-OP1.2]
                                                                                                     (2)         [F12-OS1.1]                                                     [F13-OS1.2]
                                                                                                     2.8.2.4. Indoor Storage of Combustible Products and Dangerous   2.8.3.1. Fire Drill Procedures
                                                                                                     Goods
                                                                                                                                                                     (1)         [F12-OP1.2]
                                                                                                     (2)         [F81,F02,F12-OP1.2]
                                                                                                                                                                                 [F12-OS1.2,OS1.5] [F10-OS1.5]
                                                                                                                 [F81-OS1.1] [F81,F02,F12-OS1.2]
                                                                                                                                                                     2.8.3.2. Fire Drill Frequency
                                                                                                     (3)         [F02,F12-OP1.2]
                                                                                                                                                                     (1)         [F12-OP1.2]
                                                                                                                 [F02,F12-OS1.2]
                                                                                                                                                                                 [F12-OS1.2,OS1.5] [F10-OS1.5]
                                                                                                     2.8.2.5. Outdoor Storage
                                                                                                                                                                     (2)         [F12-OS1.5]
                                                                                                     (1)         [F81,F12,F13-OH5]
                                                                                                                                                                     2.9.2.1. Flame-Retardant Treatments
                                                                                                                 [F01,F81,F12,F02,F13-OP3.1]
                                                                                                                                                                     (1)         [F82-OP1.2]
                                                                                                     2.8.2.6. Rooms for Storage Tanks
                                                                                                                                                                                 [F82-OS1.2,OS1.5]
                                                                                                     (1)         [F81-OS1.1] [F12-OS1.2]
                                                                                                                                                                     2.9.3.1. Electrical Systems
                                                                                                                 [F81-OP1.1] [F12-OP1.2]
                                                                                                                                                                     (1)         [F82,F81,F01-OP1.1]
                                                                                                     2.8.2.7. Spill Control
                                                                                                                                                                                 [F82,F81-OS3.1,OS3.2,OS3.3,OS3.4]
                                                                                                     (1)         [F44-OP1.1,OP1.2]
                                                                                                                                                                                 [F82,F81,F01-OS1.1]
                                                                                                                 [F44-OS1.1,OS1.2]
                                                                                                                                                                     (2)         [F82-OP1.1]
                                                                                                                 [F44-OH5]
                                                                                                                                                                                 [F82-OS1.1]
                                                                                                     2.8.2.8. Hazardous Processes and Operations
                                                                                                                                                                     (3)         [F34-OP1.1]
                                                                                                     (1)         (b) [F12-OS1.2]
                                                                                                                                                                                 [F34-OS3.3]
                                                                                                     2.8.2.9. Hot Works
                                                                                                                                                                                 [F34-OS1.1]
                                                                                                     (1)         [F01-OS1.1]
                                                                                                                                                                     (4)         [F81-OP1.1]
                                                                                                     2.8.2.11. Construction and Demolition Sites
                                                                                                                                                                                 [F81-OS1.1]
                                                                                                     (1)         [F11,F13,F12-OS1.2,OS1.5] [F01,F82-OS1.1]
                                                                                                                 [F02,F82-OS1.2]
                                                                                                                 [F13,F12-OP1.2] [F01,F82-OP1.1] [F02,F82-OP1.2]




                                                                                                    National Fire Code of Canada 2020                                                                                   Division B 2-27
                                                                                                    2.15.1.1.                                                                                                                Division B

                                                                                                                       Table 2.15.1.1. (Continued)                                              Table 2.15.1.1. (Continued)

                                                                                                     Provision            Functional Statements and Objectives (1)            Provision           Functional Statements and Objectives (1)
                                                                                                    2.9.3.2. Combustible Materials                                            2.12.1.5. Access to Fire Protection Equipment
                                                                                                    (1)          [F02-OS1.2] Applies to portion of Code text: “… except       (1)         [F12-OP1.2]
                                                                                                                 that sawdust and shavings are permitted to be used if
                                                                                                                                                                                          [F12-OS1.2,OS1.5]
                                                                                                                 kept damp.”
                                                                                                                                                                              2.12.1.7. Flammable and Combustible Liquids and Flammable
                                                                                                                 [F02-OS1.2] Applies to the restriction of combustible
                                                                                                                                                                              Gases
                                                                                                                 materials within tents or air-supported structures.
                                                                                                                                                                              (1)         [F01,F02-OS1.1,OS1.2,OS1.5]
                                                                                                    2.9.3.3. Smoking and Open Flame Devices




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                                                                                                                                                                              2.12.1.8. Fuelled Equipment
                                                                                                    (1)          [F01-OS1.1]
                                                                                                                                                                              (1)         [F01,F34-OS1.1,OS1.5]
                                                                                                    2.9.3.4. Fire Watch
                                                                                                                                                                              2.12.1.9. Propane-Fuelled Automotive Vehicles
                                                                                                    (1)          [F12-OS1.2,OS1.5]
                                                                                                                                                                              (1)         (a),(b),(c) [F43-OS1.1,OS1.5]
                                                                                                    (2)          (a) [F10,F12-OS1.5] [F12-OS1.2] Applies to familiarity
                                                                                                                                                                                          (d) [F34,F81-OS1.1]
                                                                                                                 with the condition of the exits.
                                                                                                                                                                                          (e) [F01-OS1.1]
                                                                                                                 (b) [F10,F12-OS1.5] [F12-OS1.2] Applies to the means
                                                                                                                 of egress being kept clear.                                  2.13.1.1. Construction
                                                                                                                 (a) [F12-OS1.2,OS1.5] Applies to familiarity with the fire   (1)         [F01,F02,F81-OP1.2,OP1.1]
                                                                                                                 safety plan.                                                             [F01,F02,F81-OS1.1,OS1.2]
                                                                                                                 (b) [F12-OS1.2,OS1.5] Applies to the requirements of the
                                                                                                                 authority having jurisdiction.                               2.13.2.1. Fire Separations
                                                                                                    2.9.3.5. Fire Alarm System                                                (1)         [F03-OP1.2]
                                                                                                    (1)          [F13-OP1.2]                                                              [F03-OS1.2]
                                                                                                                 [F11-OS1.5] [F13-OS1.2]                                      2.13.2.2. Smoking
                                                                                                    2.10.2.1. Supervision of Children                                         (1)         [F01-OS1.1] Applies to portion of Code text: “Smoking
                                                                                                                                                                                          shall not be permitted on helicopter landing areas on
                                                                                                    (1)          [F01-OS1.1,OS1.2] [F10-OS1.5] [F12,F13-OS1.2]                            roofs …”
                                                                                                    (2)          [F12-OS1.5]                                                  2.13.2.3. Fire Watch
                                                                                                    2.10.3.1. Combustible Materials Attached to Walls
                                                                                                                                                                              (1)         [F12-OS1.2]
                                                                                                    (1)          [F02-OP1.2]                                                              [F12-OP1.2]
                                                                                                                 [F02-OS1.2]                                                  2.13.2.4. Refuelling, Repair and Maintenance Operations
                                                                                                    2.10.3.2. Waste Receptacles
                                                                                                                                                                              (1)         [F01-OS1.1]
                                                                                                    (1)          [F02,F01-OS1.2]                                              2.13.2.5. Inspection of Separators
                                                                                                                 [F02,F01-OP1.2]
                                                                                                                                                                              (1)         [F82-OS1.1]
                                                                                                    2.10.3.3. Flammable and Combustible Liquids
                                                                                                                                                                                          [F82-OH5]
                                                                                                    (1)          [F01,F34-OS1.1] Applies to storage in areas inaccessible                 [F82-OP1.1]
                                                                                                                 to children.
                                                                                                                                                                              2.14.1.1. Electrical Systems
                                                                                                    2.10.4.1. Fire Prevention Inspections
                                                                                                                                                                              (1)         [F32-OS3.3]
                                                                                                    (1)          [F01,F82-OS1.1]
                                                                                                                                                                                          [F01-OS1.1] [F80,F81-OS1.4]
                                                                                                    2.11.2.1. Portable Extinguishers
                                                                                                                                                                              (2)         [F01-OS1.1] [F81-OS1.4]
                                                                                                    (1)          [F02,F12-OP1.2]
                                                                                                                                                                                          [F32-OS3.3]
                                                                                                                 [F02,F12-OS1.2]
                                                                                                                                                                              (3)         [F01-OS1.1] [F81-OS1.4]
                                                                                                    2.12.1.1. Use
                                                                                                                                                                              (4)         [F82-OS1.1,OS1.4]
                                                                                                    (1)          [F01,F02-OP1.1,OP1.2]
                                                                                                                                                                                          [F82-OS3.3]
                                                                                                                 [F01,F02-OS1.1,OS1.2] [F10-OS1.5]
                                                                                                                                                                              2.14.1.2. Mechanical Equipment
                                                                                                    (2)          [F01,F02,F03-OP1.1,OP1.2]
                                                                                                                                                                              (1)         [F01,F82-OS1.1]
                                                                                                                 [F01,F02,F03-OS1.1,OS1.2]
                                                                                                                                                                              (2)         [F01,F82-OS1.1]
                                                                                                    2.12.1.2. Adequacy of Sprinkler System
                                                                                                                                                                              (3)         [F82-OS1.1]
                                                                                                    (1)          [F02-OP1.2]
                                                                                                                 [F02-OS1.2]



                                                                                                    2-28 Division B                                                                                          National Fire Code of Canada 2020
                                                                                                    Division B                                                         2.15.1.1.

                                                                                                                          Table 2.15.1.1. (Continued)

                                                                                                      Provision             Functional Statements and Objectives (1)
                                                                                                     2.14.2.1. Warning Signs
                                                                                                     (1)            [F34-OS1.1]
                                                                                                                    [F34-OS3.4]
                                                                                                     (2)            [F34-OS3.4]
                                                                                                     (3)            [F36-OS3.7]
                                                                                                     (4)            [F34-OS3.4] [F10-OS3.7]




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                                                                                                     (5)            [F34-OS3.4] [F10-OS3.7]
                                                                                                     2.14.3.1. Control of Gases and Vapours
                                                                                                     (1)            [F01-OS1.1]
                                                                                                                    [F40-OS3.4]

                                                                                                    Notes to Table 2.15.1.1.:
                                                                                                    (1)    See Parts 2 and 3 of Division A.




                                                                                                    National Fire Code of Canada 2020                                  Division B 2-29
                                    Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays




2-30 Division B




National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Notes to Part 2
                                                                                                    Building and Occupant Fire Safety




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                                                                                                    A-2.1.2.1.(1) The National Building Code of Canada 1990 introduced changes to the method of determining
                                                                                                    building height. Application of the current method to existing buildings for the purposes of this Code could
                                                                                                    result in certain buildings being reclassified as higher buildings. For this reason, the NFC suggests that building
                                                                                                    height is that which was established by the building code that was applicable at the time of construction in the
                                                                                                    case of original construction, or at the time of alteration if additional storeys have been added to the building.

                                                                                                    A-2.1.2.2.(1) Arena-type buildings are often used for events such as community dances, rallies and
                                                                                                    trade shows. These events may increase the occupant and fuel loads beyond that for which the space was
                                                                                                    designed. To ensure safety during such events, additional egress facilities may be required to compensate for
                                                                                                    the additional occupant load and, in some cases, additional fire suppression measures may be required to
                                                                                                    compensate for the increased fuel load.
                                                                                                    Large public corridors in mercantile occupancies are also used on a temporary basis for community activities,
                                                                                                    merchandising and for special displays. In these cases, additional egress facilities and fire suppression may be
                                                                                                    needed, depending on the increase in hazard.

                                                                                                    A-2.1.3.1.(1) The National Building Code of Canada is most often applied to existing buildings when an
                                                                                                    owner wishes to rehabilitate a building, change its use, or build an addition; or when an enforcement authority
                                                                                                    decrees that a building, or a class of buildings, be altered for reasons of public safety. It is not intended that
                                                                                                    either the NBC or the NFC be used to enforce the retrospective application of new requirements in the NBC to
                                                                                                    existing buildings. Although the NFC could be interpreted to require the installation of fire alarm, standpipe
                                                                                                    and hose and automatic sprinkler systems in an existing building for which there were no requirements before
                                                                                                    the National Building Code of Canada 2005 was issued, it is the intent of the Canadian Commission on Building
                                                                                                    and Fire Codes that the NFC not be applied in this manner to these buildings.
                                                                                                    It is usually difficult to change structural features of an existing building when undertaking alterations or
                                                                                                    additions, but the installation of “active” fire protection systems, such as alarms, sprinklers and standpipes, in
                                                                                                    existing buildings may be possible. These systems may be considered as contributing to an adequate degree of
                                                                                                    life safety in cases where the structural features of a building do not conform to the NBC.
                                                                                                    Sentence 2.1.3.1.(1) is intended to address the installation of fire alarm, sprinkler and standpipe systems in
                                                                                                    existing buildings presently not so equipped, and in existing buildings that do not provide an acceptable level
                                                                                                    of safety to meet the current installation standards specified in the NBC. It is not intended that existing fire
                                                                                                    protection systems that provide an acceptable level of life safety be upgraded with each new edition of the
                                                                                                    NBC or in conjunction with the inclusion of new requirements not in force at the time that a building was
                                                                                                    constructed. The authority having jurisdiction is expected to use discretion in enforcing this requirement.
                                                                                                    The authority having jurisdiction may accept alternatives to strict compliance with the NBC as provided
                                                                                                    for in Clause 1.2.1.1.(1)(b) of Division A and its Note. (See also Note A-1.1.1.1.(1) of Division A and Note
                                                                                                    A-1.1.1.1.(1) of Division A of the NBC.)
                                                                                                    This provision is also intended to direct Code users primarily to Subsection 3.2.5. of Division B of the NBC,
                                                                                                    which specifies NFPA 13, “Standard for the Installation of Sprinkler Systems,” as the appropriate standard for
                                                                                                    the design and installation of automatic sprinkler systems and provides several exceptions and supplementary
                                                                                                    requirements (in certain cases, other provisions in the NBC may also apply). However, where a specific hazard,
                                                                                                    such as highly piled storage or the storage of flammable and combustible liquids or rubber tires, is not

                                                                                                    These Notes are included for explanatory purposes only and do not form part of the requirements. The number
                                                                                                    that introduces each Note corresponds to the applicable requirement in this Part.


                                                                                                    National Fire Code of Canada 2020                                                                             Division B 2-31
                                                                                                    A-2.1.3.4.(1)                                                                                      Division B

                                                                                                    addressed in the NBC, the applicable NFPA standards that contain design criteria for the sprinkler system
                                                                                                    required can be found in the NFC.

                                                                                                    A-2.1.3.4.(1) Editions of the NBC prior to 2005 permitted the use of combustible sprinkler piping for wet
                                                                                                    pipe sprinkler systems in residential and light-hazard occupancies on condition that the piping was protected
                                                                                                    from exposure to a fire in the space beneath. Article 2.1.3.4. requires that the necessary protection of the piping
                                                                                                    be maintained so that the performance of the sprinkler system will not be compromised in the event of fire.
                                                                                                    Some of the conditions included restricting use of the piping to light-hazard occupancies, the piping must be a
                                                                                                    wet system, use of steel suspension grids and correct tile weight, and integrity of the fire protection covering.

                                                                                                    A-2.1.3.5.(3)(c) and (d) Concern over the impact of halons on the environment is resulting in changes




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                                                                                                    to the regulations of various agencies that affect their use and release to the atmosphere and their reduction,
                                                                                                    recycling and eventual phase-out as fire extinguishment agents. Standards referenced in the NFC may not
                                                                                                    reflect the current status of requirements developed by certain agencies regarding the installation, use and
                                                                                                    testing of fire suppression systems that employ halons.
                                                                                                    The installation of new halon fire suppression systems is prohibited following the international ban on
                                                                                                    halon gas production. However, both NFPA 12A, “Standard on Halon 1301 Fire Extinguishing Systems,”
                                                                                                    and NFPA 12B, “Standard on Halon 1211 Fire Extinguishing Systems,” are still relevant to the maintenance,
                                                                                                    decommissioning and recycling of existing halon fire suppression systems.

                                                                                                    A-2.1.3.6. The Code requires the installation of several fire safety devices and building fire safety features
                                                                                                    for the control of fire hazards. The inspection, maintenance and testing requirements for many of these devices
                                                                                                    are referenced in the applicable Articles. However, several Sections of the Code do not include such references
                                                                                                    for certain fire safety devices and building fire safety features, examples of which include, but are not limited to:
                                                                                                       • ventilation system interlocks and associated audible alarms for rooms or enclosed spaces containing
                                                                                                          flammable and combustible liquids (e.g. Subsection 4.1.7.)
                                                                                                       • vapour detection alarm systems for rooms or enclosed spaces containing flammable and combustible
                                                                                                          liquids (e.g. Subsection 4.1.7.)
                                                                                                       • bonding and grounding systems for flammable and combustible liquid handling processes (e.g.
                                                                                                          Subsection 4.1.8.)
                                                                                                       • fill pipe backflow prevention systems for aboveground storage tanks for flammable and combustible
                                                                                                          liquids (e.g. Subsection 4.3.1.)
                                                                                                       • leak detection monitoring devices for aboveground storage tanks for flammable and combustible liquids
                                                                                                          (e.g. Section 4.4.).

                                                                                                    A-2.1.5.1.(6) Following are examples of measures deemed to minimize the risk of injury for portable
                                                                                                    extinguisher operators: affixing prominent cautionary labels on portable extinguishers and warning signs at
                                                                                                    entry points to confined spaces, enabling remote applications such as by providing special nozzles, installing
                                                                                                    special ventilation systems, providing breathing apparatus and other personal protective equipment, and
                                                                                                    adequately training personnel.

                                                                                                    A-2.3.2.2.(1) The small scale match flame test in NFPA 705, “Recommended Practice for a Field Flame Test
                                                                                                    for Textiles and Films,” is a relatively simple test that can be used to assess the condition of flame-retardant
                                                                                                    treatments on samples from fabrics that have been in use for a while. It is not intended that NFPA 705 be used
                                                                                                    as the primary standard for the application of fire-retardant treatments.

                                                                                                    A-2.4.1.1.(1) The accumulation of a certain amount of combustible waste material in and around buildings
                                                                                                    may be necessary for the day-to-day operation of many industrial or commercial premises. If basic measures of
                                                                                                    good housekeeping are observed, the presence of these combustibles may not constitute an “undue fire hazard.”

                                                                                                    A-2.4.1.1.(2) The defined term “service rooms” includes boiler rooms, furnace rooms, incinerator rooms,
                                                                                                    garbage rooms, janitors' closets and rooms to accommodate air-conditioning or heating appliances, pumps,
                                                                                                    compressors and electrical services. The intent of Sentence 2.4.1.1.(2) is to discourage the use of these rooms for
                                                                                                    the storage of miscellaneous combustible materials. If storage space is needed in a building, a room that does
                                                                                                    not contain building service equipment should be provided. Even in garbage rooms, combustible materials
                                                                                                    should not be allowed to accumulate. When the garbage is periodically cleared from the room, the room
                                                                                                    should be empty, except for the garbage container itself.


                                                                                                    2-32 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                     A-2.7.1.3.(1)

                                                                                                    A-2.4.1.1.(6) Measures such as those described in NFPA 80A, “Recommended Practice for Protection of
                                                                                                    Buildings from Exterior Fire Exposures,” must be taken to ensure that buildings are protected from fires in
                                                                                                    outdoor receptacles containing combustible materials.

                                                                                                    A-2.4.1.3.(1) Generally, self-heating and self-ignition are most commonly encountered in organic materials,
                                                                                                    such as animal and vegetable solids and oils. A rag saturated with linseed oil, for example, is susceptible to
                                                                                                    self-heating and self-ignition when crumpled and put in a waste container.
                                                                                                    Certain inorganic materials, such as metal powders, may also self-heat and self-ignite under isolated conditions.
                                                                                                    Materials such as motor or lubricating oils are not subject to self-heating and self-ignition.
                                                                                                    The NFPA's “Fire Protection Handbook” provides a list of materials that are susceptible to spontaneous




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                                                                                                    heating and ignition.

                                                                                                    A-2.4.5.1.(1) Measures that can be considered to limit fire spread include sufficient clear space between
                                                                                                    the fire and adjacent buildings, combustibles and woodlands, the size and height of the pile of combustibles
                                                                                                    to be burned, prevailing meteorological conditions, fire control measures such as hoses and water tanks and,
                                                                                                    if a receptacle is to be used, the design of the receptacle. In some cases, a permit or licence may be required
                                                                                                    for open air fires.

                                                                                                    A-2.4.6.1.(1) Vacant buildings frequently become the target of vandalism and arson. They should be
                                                                                                    locked, and accessible windows and doors should be barricaded to prevent unauthorized entry. However, fire
                                                                                                    department access to the interior of the building in the event of a fire should not be made unduly difficult.

                                                                                                    A-2.6.1.4.(1) External inspection of enclosed chimneys and surrounding construction may require the
                                                                                                    installation of one or more access openings in the enclosure surrounding the chimney. The presence of scorched
                                                                                                    or charred adjacent combustible or encapsulated mass timber construction indicates the need for further
                                                                                                    investigation of the cause of the overheating.
                                                                                                    Internal inspection of chimneys can be accomplished by lowering a light from the top, insertion of a light at the
                                                                                                    bottom or at intermediate locations, together with the use of one or more mirrors.
                                                                                                    During inspection of a chimney connected to an operating appliance, the presence of dense smoke at the outlet
                                                                                                    indicates improper operation of the appliance, incorrect sizing of the chimney or that unsuitable fuels are being
                                                                                                    used. These factors must be promptly corrected to reduce the accumulation of combustible deposits on the
                                                                                                    chimney and flue pipe walls.

                                                                                                    A-2.6.1.4.(2) The presence in a chimney of deposits of soot or creosote in excess of 3 mm thick indicates the
                                                                                                    need for immediate cleaning, possible modification of burning procedures, and more frequent inspections.

                                                                                                    A-2.6.1.4.(3)(a) Structural deficiencies are deviations from required construction, such as the absence of
                                                                                                    a liner or inadequate design of supports or ties. Instances of decay are cracking, settling, crumbling mortar,
                                                                                                    distortion, advanced corrosion, separation of sections, or loose or broken supports.

                                                                                                    A-2.6.1.9.(3) Depending on the amount of cooking equipment usage, the entire exhaust system, including
                                                                                                    grease extractors, should be inspected at intervals not greater than 7 days to determine if grease or other
                                                                                                    residues have been deposited within. When grease or other residues are in evidence as deposits within the
                                                                                                    hood, grease removal devices, or ducts, the system should be cleaned. In general, exhaust systems should be
                                                                                                    cleaned at intervals not greater than 12 months, but in the case of deep fat cooking, char broiling or similar
                                                                                                    cooking operations, the systems should be cleaned at intervals not greater than 3 months.

                                                                                                    A-2.7.1.3.(1) The NFC uses two criteria to determine the maximum permissible occupant load in existing
                                                                                                    buildings: the exit capacity, and the total clear floor space per person. Assuming that exit capacity is sufficient,
                                                                                                    the value of 0.4 m2/person ensures that a crowd of people will be able to move steadily toward the exits.
                                                                                                    Table 3.1.17.1. of Division B of the NBC should not be used to determine the maximum permissible occupant
                                                                                                    load for rooms or spaces in existing buildings. NBC Table 3.1.17.1. is intended to allow a building designer to
                                                                                                    calculate a minimum occupant load for the purpose of designing certain building features, such as means of
                                                                                                    egress and fire alarm systems. The designer may choose to design for more or fewer persons, in which case
                                                                                                    the actual design occupant load must be posted in a conspicuous location. In an existing building, the process
                                                                                                    must be calculated in reverse, from the measured exit capacity, or other building features, to a maximum


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 2-33
                                                                                                    A-2.7.1.4.(2)                                                                                     Division B

                                                                                                    permissible occupant load. The result of the calculation may not be, and is not intended to be, consistent with
                                                                                                    values obtained using NBC Table 3.1.17.1.
                                                                                                    Net floor space referred to in Clause 2.7.1.3.(1)(a) is the floor space in a room excluding areas occupied by
                                                                                                    structural features and fixtures, such as tables, furnishings or equipment. In certain assembly occupancies,
                                                                                                    where the number and type of furnishings may change according to the nature of the function taking place, it
                                                                                                    may be appropriate to calculate maximum occupant loads for each of the different functions anticipated.
                                                                                                    It should also be noted that Article 2.1.3.1. of this Code requires fire alarm systems to be installed in
                                                                                                    conformance with the NBC. This means that if the occupant load determined by Sentence 2.7.1.3.(1) exceeds
                                                                                                    that for which a fire alarm system is required by the NBC, a fire alarm system must be provided in the building.




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                                                                                                    A-2.7.1.4.(2) Sentence 3.1.17.1.(2) of Division B of the NBC requires that the occupant load used in the
                                                                                                    design of a floor area be posted if it differs from that determined by Table 3.1.17.1. of Division B of the NBC.

                                                                                                    A-2.7.1.6.(1) Some people with cognitive disabilities such as dementia are at risk of wandering away from
                                                                                                    the residence or healthcare facility in which they are being treated. To reduce this risk, some residences and
                                                                                                    healthcare facilities install special hardware on egress and exit doors that can only be operated by designated
                                                                                                    persons. This solution keeps residents/patients from wandering, but the doors can still trigger anxiety in
                                                                                                    residents/patients who may nevertheless try to leave the space through them, without success.
                                                                                                    Recent studies have shown that applying murals (of a landscape, for example) on exit and egress doors in
                                                                                                    these environments can help reduce anxiety in people with cognitive disabilities who tend to view them as a
                                                                                                    pleasant natural barrier rather than as a means of escape.
                                                                                                    Where this approach is implemented and the doors are not reasonably discernible, an alternative means of
                                                                                                    egress from the space should be provided. It is expected that the designers and authorities having jurisdiction
                                                                                                    will use judgement in determining whether or not an alternative means of egress is required. Additionally, the
                                                                                                    murals should be applied with care so that they do not conceal or impair the operation of any fire and life safety
                                                                                                    systems installed nearby, including, but not limited to, exit signage, emergency lighting, fire alarm devices,
                                                                                                    sprinklers or door hardware. Egress and exit doors with murals should be reasonably discernible to residential
                                                                                                    care or healthcare staff who will be required to assist residents/patients in the event that the space must be
                                                                                                    evacuated, and to visitors who will be expected to evacuate on their own.

                                                                                                    A-2.7.3.1.(1) Subsections 3.2.7. and 3.4.5. of Division B of the NBC describe the requirements for the
                                                                                                    placement of exit signs and for emergency and non-emergency lighting.

                                                                                                    A-2.8.1.2.(1) Adequately trained supervisory staff can be of great value in directing people to move in an
                                                                                                    orderly fashion in the event of a fire and in carrying out appropriate fire control measures until the public fire
                                                                                                    department arrives. These measures are, as described in the fire safety plan, developed in cooperation with
                                                                                                    the fire department. The supervisory staff referred to in this Section are assigned their responsibilities by the
                                                                                                    building owner, unless the public fire department is prepared to take on these responsibilities. Except in
                                                                                                    hospitals and nursing homes, it is not intended that supervisory staff should be in the building on a continuous
                                                                                                    basis, but that they should be available to fulfill their obligations as described in the fire safety plan on
                                                                                                    notification of a fire emergency. In hospitals and nursing homes, however, staff must be in the building at all
                                                                                                    times to assist occupants who are not capable of caring for themselves in an emergency.

                                                                                                    A-2.8.1.2.(2) Some residents of care occupancies require assistance during evacuation as they are unable to
                                                                                                    proceed independently to a place of safety.
                                                                                                    The design requirements in the NBC for home-type care occupancies that are not sprinklered facilitate early
                                                                                                    fire detection and timely evacuation. It is anticipated that these design features, along with the assistance of
                                                                                                    supervisory staff, will allow a complete evacuation of home-type care occupancies within the same time frame
                                                                                                    as other Code-compliant care occupancies, such as convalescent homes and children's custodial homes.
                                                                                                    The number of supervisory staff required in home-type care occupancies is determined by the applicable
                                                                                                    regulatory authorities, including the licensing authority. The general assumption is that at least one supervisory
                                                                                                    staff would be on duty for every two residents requiring assistance. Since residents in home-type care
                                                                                                    occupancies that are not sprinklered are located on the first storey, which is served by two barrier-free means of
                                                                                                    egress, a greater number of residents may be able to evacuate without assistance.


                                                                                                    2-34 Division B                                                                      National Fire Code of Canada 2020
                                                                                                    Division B                                                                                     A-2.8.3.1.(1)

                                                                                                    A-2.8.2.1.(3) The fire safety plan may provide important information to the fire department for use in the
                                                                                                    preparation of plans for firefighting procedures in specific buildings. This is especially true for buildings where
                                                                                                    flammable or combustible liquids or other dangerous goods are stored.
                                                                                                    The development of the fire safety plan for large retail occupancies, especially the bulk merchandising stores,
                                                                                                    should take into consideration various unique risk factors prevalent in these stores. A bulk merchandising store
                                                                                                    is characterized as a retail store in which the sales area includes the storage of material usually located in piles,
                                                                                                    on pallets or on racks up to 3.7 m in storage height. These mercantile occupancies tend to store and display
                                                                                                    in the sales area, large quantities of products ranging from compressed gas cylinders, oxidizers, flammable
                                                                                                    liquids, combustible liquids, foamed plastics, and combustible materials.
                                                                                                    Documented evidence of fires in these types of stores has shown that smoke obscuration occurs within




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                                                                                                    7.5 to 12 min from the inception of a fire. Prompt response by occupants in a fire emergency is therefore critical.
                                                                                                    Human behaviour studies have shown that occupants in a retail environment tend to delay evacuation for
                                                                                                    various reasons such as unfamiliarity with exits or a lack of visibility of exits, reluctance to leave check-out
                                                                                                    lines, and uncertainty about the events unfolding. The training and education of staff are crucial elements in
                                                                                                    clearly notifying and instructing occupants during an emergency. A reliable public address system should be
                                                                                                    an integral part of the fire safety plan.
                                                                                                    Furthermore, although the Code does not address the use of mass notification systems, many organizations
                                                                                                    integrate them into their fire alarm and public address systems. Mass notification systems provide real-time
                                                                                                    notification and instructions to persons in a building or series of buildings, a campus, a community or similar
                                                                                                    areas using a series of voice communications, signals, and text or phone messages to communicate the
                                                                                                    appropriate actions and responses in the event of an emergency situation.
                                                                                                    Where such systems are installed, the authority having jurisdiction should be consulted to ensure that the
                                                                                                    interconnection and cross-communication with other Code-prescribed life safety systems (e.g. fire alarm
                                                                                                    systems) is well coordinated and understood. The sequencing of events must be carefully prioritized to ensure
                                                                                                    that persons are not given instructions that are contrary to the life safety requirements of the Code.
                                                                                                    Note that, where strobes are used in mass notification systems, consideration should be given to ensure that
                                                                                                    all strobes, including those for the fire alarm system, are synchronized.
                                                                                                    The fire safety plan should be commensurate with the known risks and address the concerns identified above.

                                                                                                    A-2.8.2.1.(3)(a)(i) These procedures should also include training authorized personnel to silence fire alarm
                                                                                                    and alert signals under specified conditions. If special keys or devices are required to operate the alarm system,
                                                                                                    they should be readily available to supervisory staff on duty.

                                                                                                    A-2.8.2.1.(3)(a)(iv) Some occupants of a building may require special assistance during evacuation because
                                                                                                    cognitive or physical limitations make them unable to proceed independently to a place of safety. Fire safety
                                                                                                    for these persons will depend to a large extent on preplanning and on their awareness of the fire protection
                                                                                                    measures incorporated into the building. In some buildings, it may be appropriate to advise such occupants of
                                                                                                    these provisions by posted notices, handouts or other suitable means. In certain residential occupancies, such
                                                                                                    as hotels or motels, staff should be aware of rooms occupied by persons requiring special assistance during
                                                                                                    evacuation and should inform the responding fire department.

                                                                                                    A-2.8.2.11.(1)(c) The control of fire hazards in and around buildings being constructed, renovated or
                                                                                                    demolished includes fire protection for combustible construction materials and combustible refuse on the site.
                                                                                                    The sizes of piles of materials and refuse and the location of such piles in relation to adjacent buildings are
                                                                                                    factors that should be taken into consideration in determining which fire protection measures to implement.
                                                                                                    The selection of fire protection measures for demolition operations will also depend on the demolition
                                                                                                    procedure being used, the specific conditions existing on the site, and the firefighting capabilities of the
                                                                                                    responding fire department.
                                                                                                    It is the intent of this Code that requirements regarding the outdoor storage of materials stated in Section 3.3. be
                                                                                                    referred to and applied at construction and demolition sites.

                                                                                                    A-2.8.3.1.(1) A fire safety plan is of little value if it is not reviewed periodically so that all supervisory staff
                                                                                                    remain familiar with their responsibilities. A fire drill, then, is at least a review of the fire safety plan by
                                                                                                    supervisory staff. The extent to which non-supervisory staff participate in a fire drill should be worked out
                                                                                                    in cooperation with the fire department. The decision as to whether all occupants should leave the building
                                                                                                    during a fire drill should be based on the nature of the occupancy.


                                                                                                    National Fire Code of Canada 2020                                                                     Division B 2-35
                                                                                                    A-2.9.3.5.(1)                                                                                  Division B

                                                                                                    It may be necessary to hold additional fire drills outside normal working hours for the benefit of employees on
                                                                                                    afternoon or night shifts, who should be as familiar with fire drill procedures as those who work during the
                                                                                                    day. If full-scale fire drills are not possible during non-regular working hours, arrangements should be made so
                                                                                                    that night-shift supervisory staff can participate in fire drills conducted during the daytime.

                                                                                                    A-2.9.3.5.(1) The type of fire alarm and emergency communication system anticipated for tents and
                                                                                                    air-supported structures will vary according to the hazard and the number of occupants. If a tent or
                                                                                                    air-supported structure is to be permanent, a fire alarm and emergency communication system, as defined
                                                                                                    in the NBC, may be required. If such structures are to be temporary, however, a somewhat less sophisticated
                                                                                                    system is anticipated, depending on local conditions.




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                                                                                                    A-2.14.2. Information on signage for the areas referred to in Subsection 2.14.2. can be found in ANSI/ASABE
                                                                                                    AD11684, “Tractors, machinery for agricultural and forestry, powered lawn and garden equipment — Safety
                                                                                                    signs and hazard pictorials — General principles.”

                                                                                                    A-2.14.3.1.(1) Many of the gases and vapours released in farm buildings present risks to human life.
                                                                                                    Structures such as silos, manure storage areas, anaerobic digesters, grain bins and barns may contain confined
                                                                                                    spaces in which dangerous gases and vapours can accumulate to hazardous levels or displace oxygen. Examples
                                                                                                    of these gases and vapours include, but are not limited to, hydrogen sulfide, carbon monoxide, ammonia,
                                                                                                    methane, carbon dioxide and nitrogen dioxide. Hydrogen sulfide, carbon monoxide and ammonia are very
                                                                                                    toxic at low concentrations, well below the concentrations at which they pose a flammability hazard. However,
                                                                                                    methane is flammable before it accumulates to a toxic concentration. Carbon dioxide, which is a by-product
                                                                                                    of the combustion of natural gas and other fuels, is non-flammable, but is toxic at fairly low concentrations.
                                                                                                    Nitrogen dioxide is very toxic at low concentrations, but is a non-flammable oxidizing gas similar to oxygen.

                                                                                                    A-2.14.3.2.(2) A farm building housing livestock with a below-floor storage area for liquid manure may
                                                                                                    occasionally be taken out of service for a period of time, such as between production cycles or during a market
                                                                                                    downturn. Over this time period, any manure in the storage area will continue to decompose and produce
                                                                                                    dangerous gases. The quantity of gas produced is generally proportional to the volume of manure. Special
                                                                                                    care must be exercised when the building is brought back into service to minimize the risks of fire and injury
                                                                                                    associated with manure gases.




                                                                                                    2-36 Division B                                                                   National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Part 3
                                                                                                    Indoor and Outdoor Storage




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                                                                                                      3.1.          General
                                                                                                      3.1.1.        Scope ................................................ 3-1
                                                                                                      3.1.2.        Dangerous Goods ............................ 3-1
                                                                                                      3.1.3.        Industrial Trucks ............................... 3-3
                                                                                                      3.1.4.        Electrical Installations ..................... 3-4

                                                                                                      3.2.          Indoor Storage
                                                                                                      3.2.1.        Scope ................................................ 3-4
                                                                                                      3.2.2.        General .............................................. 3-4
                                                                                                      3.2.3.        General Indoor Storage ................... 3-6
                                                                                                      3.2.4.        Indoor Tire Storage .......................... 3-7
                                                                                                      3.2.5.        Indoor Storage of Aerosol
                                                                                                                    Products ............................................ 3-7
                                                                                                      3.2.6.        Indoor Storage of Combustible
                                                                                                                    Fibres ................................................ 3-8
                                                                                                      3.2.7.        Indoor Storage of Dangerous
                                                                                                                    Goods .............................................. 3-10
                                                                                                      3.2.8.        Indoor Storage of Compressed
                                                                                                                    Gases .............................................. 3-18
                                                                                                      3.2.9.        Indoor Storage of Ammonium
                                                                                                                    Nitrate .............................................. 3-19

                                                                                                      3.3.          Outdoor Storage
                                                                                                      3.3.1.        Scope .............................................. 3-19
                                                                                                      3.3.2.        General ............................................ 3-20
                                                                                                      3.3.3.        General Outdoor Storage .............. 3-22
                                                                                                      3.3.4.        Outdoor Storage of Dangerous
                                                                                                                    Goods .............................................. 3-23
                                                                                                      3.3.5.        Outdoor Storage of
                                                                                                                    Compressed Gases ........................ 3-24

                                                                                                      3.4.          Objectives and
                                                                                                                    Functional Statements
                                                                                                      3.4.1.        Objectives and Functional
                                                                                                                    Statements ...................................... 3-24

                                                                                                                    Notes to Part 3 ................ 3-31




                                                                                                    National Fire Code of Canada 2020
                                    Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays




National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Part 3
                                                                                                    Indoor and Outdoor Storage




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                                                                                                    Section 3.1. General
                                                                                                    3.1.1.            Scope
                                                                                                    3.1.1.1.          Application
                                                                                                                        1) Except as provided in Sentence 5.5.5.1.(1), this Part applies to the storage of
                                                                                                                      combustible products and dangerous goods, both inside and outside of buildings. (See
                                                                                                                      Note A-3.1.1.1.(1).)

                                                                                                    3.1.1.2.          Radioactive Materials
                                                                                                                         1) Dangerous goods classified as radioactive materials shall be stored in
                                                                                                                      conformance with CNSC S.C. 1997, c. 9, “Nuclear Safety and Control Act,” and its
                                                                                                                      Regulations.

                                                                                                    3.1.1.3.          Explosives
                                                                                                                         1) The storage of dangerous goods classified as explosives shall be in conformance
                                                                                                                      with NRCan R.S.C., 1985, c. E-17, “Explosives Act,” and its Regulations.

                                                                                                    3.1.1.4.          Compressed Gases
                                                                                                                      (See Note A-3.1.1.4.)
                                                                                                                         1) This Part shall not apply to
                                                                                                                         a) facilities operated by manufacturers or distributors at which dangerous goods
                                                                                                                            classified as compressed gases are manufactured, or containers are filled
                                                                                                                            or distributed, provided that storage and handling is in conformance with
                                                                                                                            good engineering practice (see Note A-3.1.1.4.(1)(a)), and
                                                                                                                         b) the storage and dispensing of dangerous goods classified as flammable gases
                                                                                                                            at fuel-dispensing stations covered in Section 4.6.
                                                                                                                         2) Except as provided in this Part, the storage and handling of liquefied petroleum
                                                                                                                      gases shall conform to
                                                                                                                         a) CSA B149.1, “Natural gas and propane installation code,” and
                                                                                                                         b) CSA B149.2, “Propane storage and handling code.”
                                                                                                                         3) Except as provided in this Part, the storage and handling of natural gas shall
                                                                                                                      conform to CSA B149.1, “Natural gas and propane installation code.”

                                                                                                    3.1.2.            Dangerous Goods
                                                                                                    3.1.2.1.          Classification
                                                                                                                         1) Classes and divisions of dangerous goods referred to in this Code shall mean
                                                                                                                         a) their primary and first subsidiary classification as defined in Part 2 of TC
                                                                                                                            SOR/2001-286, “Transportation of Dangerous Goods Regulations (TDGR),”
                                                                                                                            or
                                                                                                                         b) the categories and subcategories established by the “Workplace
                                                                                                                            Hazardous Materials Information System (WHMIS)” for controlled


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 3-1
                                                                                                    3.1.2.2.                                                                                          Division B

                                                                                                                            products determined in Part 7 of HC SOR/2015-17, “Hazardous Products
                                                                                                                            Regulations.”

                                                                                                                         2) Substances classified as miscellaneous dangerous goods shall be stored according
                                                                                                                     to the hazard they present based on their properties as dangerous goods.

                                                                                                                        3) For the purposes of this Code, dangerous goods classified as flammable liquids
                                                                                                                     shall mean flammable liquids and combustible liquids as defined in Subsection 4.1.2.

                                                                                                    3.1.2.2.         Ambient Temperature

                                                                                                                        1) Ammonium nitrate classified as oxidizers and dangerous goods classified as




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                                                                                                                     compressed gases shall not be stored in an area where the ambient air temperature is
                                                                                                                     higher than 52°C.

                                                                                                                        2) Dangerous goods shall not be stored in areas where the ambient temperature may
                                                                                                                     cause them to become unstable or susceptible to undesirable reactions.

                                                                                                                         3) Dangerous goods shall be stored in refrigerated areas where such refrigeration
                                                                                                                     is necessary to stabilize the substances.

                                                                                                    3.1.2.3.         Packages and Containers

                                                                                                                        1) Dangerous goods shall be stored in packages or containers
                                                                                                                        a) made of materials that are compatible with the product they contain, and
                                                                                                                        b) of durable construction and designed to resist damage from normal material
                                                                                                                           handling activities.

                                                                                                                        2) Where the package or container for a specific type of dangerous goods is subject
                                                                                                                     to a standard established by a transportation regulatory authority, such package or
                                                                                                                     container shall conform with the applicable standard. (See Note A-3.1.2.3.(2).)

                                                                                                    3.1.2.4.         Storage Arrangement and Conditions

                                                                                                                       1) Dangerous goods shall be stored in stable piles such that they will not collapse
                                                                                                                     under normal operating conditions.

                                                                                                                        2) In addition to the provisions of Article 3.1.2.2., dangerous goods shall not be
                                                                                                                     stored in areas where they may be subject to
                                                                                                                         a) temperature extremes or atmospheric pressure that could cause their
                                                                                                                            containers to become deformed or rupture, or
                                                                                                                         b) physical impact or temperature extremes that could cause a chemical
                                                                                                                            reaction or chemical instability such that a fire could occur.

                                                                                                    3.1.2.5.         Compressed Gases

                                                                                                                        1) Cylinders and tanks of dangerous goods classified as compressed gases shall be
                                                                                                                     protected against mechanical damage.

                                                                                                                        2) Cylinders of dangerous goods classified as compressed gases that are in storage
                                                                                                                     shall be
                                                                                                                        a) protected against valve damage (see Note A-3.1.2.5.(2)(a)), and
                                                                                                                        b) firmly secured in a position that will not interfere with the operation of
                                                                                                                             the cylinder valve assembly.

                                                                                                                        3) Cylinders of dangerous goods classified as compressed gases shall be transported
                                                                                                                     in devices designed to provide restraint against movement in any direction.

                                                                                                                        4) Except for portable fire extinguishers, cylinders of dangerous goods classified
                                                                                                                     as compressed gases shall not be stored
                                                                                                                         a) in any exit or corridor providing access to exits,
                                                                                                                         b) under any fire escape, outside exit stair, passage or ramp, or
                                                                                                                         c) within 1 m of any exit.


                                                                                                    3-2 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                               3.1.3.3.

                                                                                                    3.1.2.6.          Reactive Materials
                                                                                                                      (See Note A-3.1.2.6.)
                                                                                                                         1) Reactive materials shall be stored based on their properties when classified
                                                                                                                      as dangerous goods.
                                                                                                                         2) Reactive materials that are unstable and susceptible to reactions, such as
                                                                                                                      polymerization, or self-accelerating decomposition initiated by heat, shock, vibration,
                                                                                                                      light, an increase in pressure, or sound waves, shall be stored in a location and manner
                                                                                                                      that will prevent the undesired reaction.
                                                                                                                         3) Reactive materials that may react with water or humidity shall be stored in
                                                                                                                      sealed containers in a dry location.




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                                                                                                                         4) Reactive materials that ignite spontaneously in air shall be stored in a liquid
                                                                                                                      that is inert to the material, in an inert atmosphere or in sealed containers.
                                                                                                                         5) For the purposes of this Code, unstable dangerous goods shall be considered as
                                                                                                                      reactive materials based on their reactive properties.

                                                                                                    3.1.2.7.          Fire Safety Plan
                                                                                                                         1) A fire safety plan conforming to Section 2.8. shall be prepared.

                                                                                                    3.1.3.            Industrial Trucks
                                                                                                    3.1.3.1.          Industrial Trucks
                                                                                                                        1) Except as provided in Sentences (2) and (3), the designation, use, maintenance
                                                                                                                      and operation of industrial trucks shall conform to NFPA 505, “Fire Safety Standard for
                                                                                                                      Powered Industrial Trucks Including Type Designations, Areas of Use, Conversions,
                                                                                                                      Maintenance, and Operations.”
                                                                                                                         2) Fuel-fired industrial trucks shall conform to ULC/ORD-C558, “Guide for the
                                                                                                                      Investigation of Internal Combustion Engine-Powered Industrial Trucks.”
                                                                                                                         3) Battery-powered industrial trucks shall conform to ULC/ORD-C583, “Guide for
                                                                                                                      the Investigation of Electric Battery Powered Industrial Trucks.”

                                                                                                    3.1.3.2.          Fuel-Fired Industrial Trucks
                                                                                                                         1) Fuel-fired industrial trucks shall be stored
                                                                                                                         a) in detached buildings,
                                                                                                                         b) in areas separated from the remainder of the storage area by a fire separation
                                                                                                                            having a fire-resistance rating of not less that 1 h, or
                                                                                                                         c) in areas where the vehicles will not create a fire hazard to the storage area.
                                                                                                                         2) Except as provided in Sentence (3), fuel-fired industrial trucks shall be refuelled
                                                                                                                      only at designated locations outside buildings.
                                                                                                                         3) Fuel-fired industrial trucks that are fuelled by replaceable propane cylinders
                                                                                                                      are permitted to have their cylinders replaced indoors, provided
                                                                                                                          a) cylinder replacement is done at a safe location that is at least 7.5 m from
                                                                                                                             ignition sources, open pits and underground entrances,
                                                                                                                          b) the cylinders' valves are closed,
                                                                                                                          c) when an automatic quick-closing coupling that closes in both directions
                                                                                                                             when uncoupled is not provided, the engine is operated until the fuel in
                                                                                                                             the system is consumed, and
                                                                                                                         d) spare propane cylinders are stored in conformance with Subsection 3.3.5.
                                                                                                                         4) Each fuel-fired industrial truck shall be equipped with at least one portable
                                                                                                                      extinguisher having a minimum rating of 2-A:30-B:C.

                                                                                                    3.1.3.3.          Battery-Powered Industrial Trucks
                                                                                                                         1) Battery-charging installations for battery-powered industrial trucks shall be
                                                                                                                      located
                                                                                                                          a) at least 1.5 m from combustible materials,


                                                                                                    National Fire Code of Canada 2020                                                                     Division B 3-3
                                                                                                    3.1.3.4.                                                                                           Division B

                                                                                                                        b) when serving more than 2 trucks, in well ventilated areas,
                                                                                                                        c) in areas where flammable gases or vapours, combustible dusts or combustible
                                                                                                                           fibres are not present in hazardous quantities, and
                                                                                                                        d) in areas where precautions are taken to prevent ignition sources, such as
                                                                                                                           open flames, sparks or electric arcs.
                                                                                                                        2) Battery-charging installations for battery-powered industrial trucks shall
                                                                                                                     be equipped with at least one portable extinguisher having a minimum rating of
                                                                                                                     2-A:30-B:C.

                                                                                                    3.1.3.4.         Training




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                                                                                                                        1)   Only trained and authorized personnel shall be permitted to
                                                                                                                        a)   operate industrial trucks,
                                                                                                                        b)   replace or refuel propane cylinders for fuel-fired industrial trucks,
                                                                                                                        c)   refuel fuel-fired industrial trucks, or
                                                                                                                        d)   charge batteries for battery-powered industrial trucks.

                                                                                                    3.1.4.           Electrical Installations
                                                                                                    3.1.4.1.         Hazardous Locations
                                                                                                                        1) Where wiring or electrical equipment is located in areas in which flammable
                                                                                                                     gases or vapours, combustible dusts or combustible fibres are present in quantities
                                                                                                                     sufficient to create a hazard, such wiring and electrical equipment shall conform to
                                                                                                                     Sentence 3.3.6.2.(4) of Division B of the NBC.


                                                                                                    Section 3.2. Indoor Storage
                                                                                                    3.2.1.           Scope
                                                                                                    3.2.1.1.         Application
                                                                                                                        1) Except as permitted in Sentence (2), this Section shall apply to buildings or parts
                                                                                                                     of buildings used for the storage of the following products:
                                                                                                                         a) Class I, II, III and IV commodities, and Group A, B and C plastics, as
                                                                                                                             defined in NFPA 13, “Standard for the Installation of Sprinkler Systems”
                                                                                                                             (see Note A-3.2.1.1.(1)(a)),
                                                                                                                         b) rubber tires and combustible fibres,
                                                                                                                         c) packaged Level 1, 2 and 3 aerosols, as described in Subsection 3.2.5.,
                                                                                                                         d) dangerous goods in packages or containers, as covered in Subsection 3.2.7., or
                                                                                                                         e) closed containers of distilled beverage alcohols.
                                                                                                                     (See Note A-3.2.1.1.(1).)
                                                                                                                        2) High rack storage warehouses with storage heights greater than 13 m, where
                                                                                                                     conditions exist that must be addressed by design and operational details specific to
                                                                                                                     the hazard, need not conform to this Section, where alternative protection is provided
                                                                                                                     in conformance with Article 1.2.1.1. of Division A.

                                                                                                    3.2.2.           General
                                                                                                    3.2.2.1.         Application
                                                                                                                        1) Unless otherwise specified, this Subsection shall apply to the indoor storage
                                                                                                                     of any product covered in this Section.

                                                                                                    3.2.2.2.         Access Aisles
                                                                                                                     (See Note A-3.2.2.2.)
                                                                                                                         1) Adequate access for firefighting purposes shall be provided and maintained to
                                                                                                                     all portions of the storage area.


                                                                                                    3-4 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                             3.2.2.5.

                                                                                                                         2) Access aisles not less than 1.0 m wide shall be provided to fire department
                                                                                                                      access panels and to fire protection equipment.
                                                                                                                         3) Aisles shall be maintained free of obstruction.
                                                                                                                         4) A storage room or area that is greater than 100 m2 shall be provided with at
                                                                                                                      least one main aisle conforming to Sentences (5) to (8).
                                                                                                                        5) Except as permitted in Sentence (6), main access aisles shall have a minimum
                                                                                                                      width of
                                                                                                                         a) 2.4 m for storage heights of not more than 6 m, and
                                                                                                                         b) 3.6 m for storage heights of more than 6 m.




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                                                                                                                         6) The width of main access aisles referred to in Sentence (5) need not exceed
                                                                                                                      2.4 m where the products are stored in racks and the building is sprinklered.
                                                                                                                         7) Main access aisles shall extend
                                                                                                                         a) the length of the storage area where only one main access aisle is provided,
                                                                                                                            or
                                                                                                                         b) the length or width of the storage area where 2 or more main access aisles
                                                                                                                            are provided.
                                                                                                                         8) Main access aisles shall be accessible from at least 2 fire department access
                                                                                                                      points, which shall be located such that, in the event one becomes unusable due to fire,
                                                                                                                      the other will still allow emergency responders to access the building.

                                                                                                    3.2.2.3.          Clearances
                                                                                                                         1) Wall clearances of not less than 600 mm shall be maintained where stored
                                                                                                                      products may swell or expand with the absorption of water.
                                                                                                                         2) In buildings that are not sprinklered, a clearance of not less than 1 m between
                                                                                                                      the top of storage and the underside of the floor or roof deck shall be maintained.
                                                                                                                      (See Note A-3.2.2.3.(2).)
                                                                                                                         3) If the top of storage in piles, on shelves, in bin boxes or on racks is above the
                                                                                                                      lower chords of floor or roof structural framing members, a clear space of not less than
                                                                                                                      300 mm shall be maintained between the storage and the structural members.
                                                                                                                         4) In sprinklered buildings, the clearance between the top of storage and ceiling
                                                                                                                      sprinkler deflectors shall conform to the standard used to design the sprinkler system.
                                                                                                                         5) Clearance between stored products and ducts of exhaust ventilation systems
                                                                                                                      shall be maintained in conformance with NFPA 91, “Standard for Exhaust Systems for
                                                                                                                      Air Conveying of Vapors, Gases, Mists, and Particulate Solids.” (See Note A-3.2.2.3.(5).)

                                                                                                    3.2.2.4.          Combustible Pallets
                                                                                                                         1) Except as permitted in Sentences (2) and (3), combustible pallets shall be stored
                                                                                                                      outdoors in conformance with Section 3.3.
                                                                                                                         2) Indoor storage of combustible pallets is permitted in a building that is not
                                                                                                                      sprinklered, provided
                                                                                                                          a) the height of storage of combustible pallets is not more than 1.2 m,
                                                                                                                          b) the width of an individual storage area is not more than 7.5 m, and
                                                                                                                          c) the aggregate area of storage is not more than
                                                                                                                                 i) 100 m2 for wood or solid deck non-expanded polyethylene
                                                                                                                                    pallets, or
                                                                                                                                ii) 50 m2 for plastic pallets not designated in Subclause (c)(i).
                                                                                                                         3) In a sprinklered building, the storage of combustible pallets is permitted to
                                                                                                                      exceed the values stated in Sentence (2), provided such storage conforms to NFPA 13,
                                                                                                                      “Standard for the Installation of Sprinkler Systems.” (See Note A-3.2.2.4.(3).)

                                                                                                    3.2.2.5.          Fire Safety Plan
                                                                                                                         1) A fire safety plan conforming to Section 2.8. and Sentence (2) shall be prepared.


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 3-5
                                                                                                    3.2.2.6.                                                                                                                Division B

                                                                                                                             2) The storage method and maximum height of storage as established in the fire
                                                                                                                          safety plan in accordance with Clauses 2.8.2.4.(2)(b) and (c) shall be posted in the
                                                                                                                          storage area.
                                                                                                                              3) Signs required in Sentence (2) shall have
                                                                                                                              a) a minimum dimension of 200 mm, and
                                                                                                                              b) letters not less than 25 mm high.

                                                                                                    3.2.2.6.              Smoking
                                                                                                                             1) Except as provided in Subsection 2.4.2., smoking shall not be permitted in
                                                                                                                          an indoor storage area.




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                                                                                                    3.2.2.7.              Storage Arrangements
                                                                                                                             1) The maximum permitted height of storage in any individual storage area shall be
                                                                                                                          determined according to
                                                                                                                             a) its base area and shape, and the stability of the stored products, and
                                                                                                                             b) the height limitations otherwise set in this Section.

                                                                                                    3.2.3.                General Indoor Storage
                                                                                                    3.2.3.1.              Application
                                                                                                                             1) This Subsection applies to the indoor storage of Class I to IV commodities,
                                                                                                                          Group A, B or C plastics, and closed containers of distilled beverage alcohol, in solid piles,
                                                                                                                          on pallets, on shelves or in bin boxes or racks.
                                                                                                                             2) When flammable liquids or combustible liquids are stored with products covered
                                                                                                                          by this Subsection, the liquids shall meet the requirements of the applicable provisions
                                                                                                                          of Part 4.

                                                                                                    3.2.3.2.              Individual Storage Areas
                                                                                                                             1) Except as provided in Sentence (2), the size of individual storage areas shall not
                                                                                                                          exceed the limits shown in Table 3.2.3.2.
                                                                                                                             2) In a sprinklered building, the height of storage in racks is permitted to exceed the
                                                                                                                          limits shown in Table 3.2.3.2. (See Note A-3.2.3.2.(2).)

                                                                                                                                                                   Table 3.2.3.2.
                                                                                                                                                     Size Limits for Individual Storage Areas
                                                                                                                                       Forming Part of Sentences 3.2.3.2.(1) and (2) and Clause 3.2.7.5.(1)(c)

                                                                                                                                                          Buildings that are not Sprinklered                   Sprinklered Buildings
                                                                                                                 Product Classification
                                                                                                                                                          Area, m2           Height of Storage, m      Area, m2            Height of Storage, m
                                                                                                     Class I commodities                                    500                       6.5               1 500                       9.0
                                                                                                     Class II commodities                                   500                       6.5               1 500                          9.0
                                                                                                     Class III commodities, Group C plastics                250                       4.5               1 000                          9.0
                                                                                                     Closed containers of distilled beverage alcohol        250                       4.5               1 000                          9.0
                                                                                                     Class IV commodities, Group B plastics                 250                       3.6               1 000                          9.0
                                                                                                     Group A plastics                                       250                       1.5                500                           6.1


                                                                                                    3.2.3.3.              Sprinkler Systems
                                                                                                                             1) Except as provided in Sentence (2), where a sprinkler system is required to
                                                                                                                          accommodate individual storage areas referred to in Article 3.2.3.2., the sprinkler system
                                                                                                                          shall be designed and installed in conformance with NFPA 13, “Standard for the
                                                                                                                          Installation of Sprinkler Systems.”
                                                                                                                             2) For closed containers of distilled beverage alcohol, the sprinkler system referred to
                                                                                                                          in Sentence (1) shall be designed in conformance with good engineering practice.
                                                                                                                          (See Note A-3.2.3.3.(2).)


                                                                                                    3-6 Division B                                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                    3.2.5.4.

                                                                                                    3.2.4.              Indoor Tire Storage
                                                                                                    3.2.4.1.            Application
                                                                                                                           1) This Subsection shall apply to buildings or parts of buildings used for the storage
                                                                                                                        of rubber tires.

                                                                                                    3.2.4.2.            Fire Separations
                                                                                                                           1) A tire storage area designed to contain more than 375 m3 of rubber tires shall be
                                                                                                                        separated from the remainder of the building by a fire separation conforming to Article
                                                                                                                        3.3.6.5. of Division B of the NBC. (See Note A-3.2.4.2.(1).)




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                                                                                                    3.2.4.3.            Sprinkler Protection
                                                                                                                          1) Buildings regulated by this Subsection shall be sprinklered in conformance with
                                                                                                                        NFPA 13, “Standard for the Installation of Sprinkler Systems,” whenever
                                                                                                                          a) the aggregate of individual storage areas in the building exceeds 500 m2,
                                                                                                                          b) any individual storage area exceeds 250 m2, or
                                                                                                                          c) the height of storage is more than 3.6 m, and the total volume of tires in the
                                                                                                                             building is more than 375 m3.

                                                                                                    3.2.4.4.            Portable Extinguishers
                                                                                                                           1) In addition to the requirements of Part 2, multi-purpose dry chemical portable
                                                                                                                        extinguishers having a rating of 4-A:80-B shall be installed
                                                                                                                            a) in every 500 m2 of floor area, and
                                                                                                                            b) so that the travel distance to any extinguisher does not exceed 25 m.

                                                                                                    3.2.5.              Indoor Storage of Aerosol Products
                                                                                                    3.2.5.1.            Application
                                                                                                                           1) This Subsection shall apply to the indoor storage of packaged aerosol products
                                                                                                                        as classified in Article 3.2.5.2. (See Note A-3.2.5.1.(1).)

                                                                                                    3.2.5.2.            Classification
                                                                                                                            1) For the purposes of this Subsection, aerosol products shall be classified as Level
                                                                                                                        1, 2 or 3 in conformance with NFPA 30B, “Code for the Manufacture and Storage of
                                                                                                                        Aerosol Products.” (See Note A-3.2.5.2.(1).)

                                                                                                    3.2.5.3.            Level 1 Aerosols
                                                                                                                          1) Packaged Level 1 aerosol products shall be protected as required for Class III
                                                                                                                        commodities, in both palletized and rack storage, in conformance with Article 3.2.3.2.

                                                                                                    3.2.5.4.            Level 2 and 3 Aerosols
                                                                                                                           1) The storage of packaged Level 2 and 3 aerosol products shall conform to
                                                                                                                        Table 3.2.5.4. and Articles 3.2.5.5. to 3.2.5.8.
                                                                                                                           2) Where storage of packaged aerosol products is mixed, protection shall be
                                                                                                                        provided for the most hazardous classification present.

                                                                                                                                                                 Table 3.2.5.4.
                                                                                                                                       Maximum Amount of Packaged Level 2 and 3 Aerosol Products, kg (1)
                                                                                                                                              Forming Part of Sentences 3.2.5.4.(1) and 3.2.5.5.(2)

                                                                                                                                                                                 Type of Dedicated Area Required
                                                                                                              Product Classification                   Buildings that are not Sprinklered                     Sprinklered Buildings
                                                                                                                                                    None              A (2)            B (3)          None            A (2)             B (3)
                                                                                                     Levels 2 and 3                                 1 000            5 000            10 000         10 000          50 000           No Limit


                                                                                                    National Fire Code of Canada 2020                                                                                            Division B 3-7
                                                                                                    3.2.5.5.                                                                                                  Division B

                                                                                                                                                                Table 3.2.5.4. (Continued)

                                                                                                    Notes to Table 3.2.5.4.:
                                                                                                    (1)   One pallet load of packaged aerosols is approximately 1 000 kg.
                                                                                                    (2)   See Article 3.2.5.6.
                                                                                                    (3)   See Article 3.2.5.7.


                                                                                                    3.2.5.5.               Sprinkler Systems
                                                                                                                              1) Where a sprinkler system is required to accommodate the storage limits
                                                                                                                           in Sentence 3.2.5.4.(1), the sprinkler system shall be designed and installed in
                                                                                                                           conformance with Article 3.2.3.3., with additional sprinkler protection provided




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                                                                                                                           in conformance with NFPA 30B, “Code for the Manufacture and Storage of Aerosol
                                                                                                                           Products,” for areas in which packaged aerosol products are stored.
                                                                                                                              2) Where the sprinkler system required to accommodate the storage limits in
                                                                                                                           Sentence 3.2.5.4.(1) does not conform to Sentence (1), the storage of packaged Level 2
                                                                                                                           or 3 aerosol products shall conform to Table 3.2.5.4. for buildings that are not sprinklered.

                                                                                                    3.2.5.6.               Type A Dedicated Areas
                                                                                                                               1) Where a Type A dedicated storage area is required to accommodate the
                                                                                                                           storage limits stated in Sentence 3.2.5.4.(1), it shall be separated from the remainder
                                                                                                                           of the building by chain link fencing or a noncombustible partition that is capable of
                                                                                                                           withstanding the impact of rocketing cans and that extends to the underside of the
                                                                                                                           roof deck or to the ceiling which must also be capable of withstanding the impact
                                                                                                                           of rocketing cans.
                                                                                                                              2) Chain link fencing referred to in Sentence (1) shall be not lighter than 2.9 mm
                                                                                                                           steel wire woven into a 50 mm diamond mesh.

                                                                                                    3.2.5.7.               Type B Dedicated Areas
                                                                                                                              1) Where a Type B dedicated storage area is required to accommodate the storage
                                                                                                                           limits in Sentence 3.2.5.4.(1), it shall be separated from the remainder of the building by
                                                                                                                           partitions
                                                                                                                               a) having not less than a 1 h fire-resistance rating,
                                                                                                                               b) capable of withstanding the impact of rocketing cans, and
                                                                                                                               c) extending to the underside of the roof or to a ceiling of construction
                                                                                                                                   equivalent to the partitions.

                                                                                                    3.2.5.8.               Storage Height
                                                                                                                              1) Except as provided in Sentence (2), the height of storage of packaged Level
                                                                                                                           2 or 3 aerosols shall be not greater than
                                                                                                                               a) 1.75 m where products are in solid piles or on pallets, or
                                                                                                                              b) 6.1 m where products are on racks.
                                                                                                                              2) Where the building is sprinklered in conformance with Article 3.2.5.5., and an
                                                                                                                           enclosure conforming to Articles 3.2.5.6. or 3.2.5.7. is provided, the height of storage of
                                                                                                                           packaged Level 2 or 3 aerosols shall be not greater than
                                                                                                                              a) 6.1 m where products are in solid piles or on pallets, or
                                                                                                                              b) the height limit determined by the design capacity of the sprinkler system
                                                                                                                                  where products are on racks.

                                                                                                    3.2.5.9.               Aisles
                                                                                                                              1) Aisles separating racks, shelves, or piles of packaged Level 2 or 3 aerosol
                                                                                                                           products shall be not less than 2.4 m wide.

                                                                                                    3.2.6.                 Indoor Storage of Combustible Fibres
                                                                                                    3.2.6.1.               Application
                                                                                                                               1) This Subsection shall apply to the storage of combustible fibres inside buildings.


                                                                                                    3-8 Division B                                                                               National Fire Code of Canada 2020
                                                                                                    Division B                                                                                              3.2.6.5.

                                                                                                    3.2.6.2.          Building Construction

                                                                                                                         1) Buildings or parts thereof used for the storage of baled combustible fibres shall
                                                                                                                      conform to Article 3.1.2.6. of Division B of the NBC.

                                                                                                    3.2.6.3.          Loose Combustible Fibres

                                                                                                                         1) Up to 3 m3 of loose combustible fibres are permitted to be kept in a fire
                                                                                                                      compartment provided they are stored in metal-lined bins equipped with self-closing
                                                                                                                      metal-lined covers.

                                                                                                                         2) Quantities of loose combustible fibres exceeding 3 m3 but not exceeding 15 m3




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                                                                                                                      shall be stored in rooms separated from the remainder of the building by a fire separation
                                                                                                                      having a fire-resistance rating of not less than 1 h.

                                                                                                                         3) Quantities of loose combustible fibres exceeding 15 m3 but not exceeding 30 m3
                                                                                                                      shall be stored in rooms separated from the remainder of the building by a fire separation
                                                                                                                      having a fire-resistance rating of not less than 2 h.

                                                                                                                         4) Quantities of loose combustible fibres that exceed 30 m3 shall be stored in an
                                                                                                                      individual room
                                                                                                                         a) that is sprinklered in conformance with NFPA 13, “Standard for the
                                                                                                                             Installation of Sprinkler Systems,”
                                                                                                                         b) that is separated from the remainder of the building by a fire separation
                                                                                                                             having a fire-resistance rating of not less than 2 h, and
                                                                                                                         c) except as provided in Sentence (5), with individual storage areas not exceeding
                                                                                                                             the design area of the sprinkler system.

                                                                                                                         5) The individual storage areas for loose combustible fibres described in Sentence (4)
                                                                                                                      shall not exceed 250 m2.

                                                                                                    3.2.6.4.          Baled Combustible Fibres

                                                                                                                         1) Except as permitted in Sentences (2), (3) and (4), baled combustible fibres shall be
                                                                                                                      stored so that
                                                                                                                          a) no individual storage area exceeds 250 m2,
                                                                                                                          b) the height of storage in an individual storage area does not exceed 4.5 m,
                                                                                                                          c) subsidiary aisles within individual storage areas are not less than 1 m wide,
                                                                                                                             and
                                                                                                                         d) the clearance between piles and building walls is not less than 1 m.

                                                                                                                         2) Except as permitted in Sentence (4), where baled combustible fibres are stored in
                                                                                                                      sprinklered buildings, the maximum area of any individual storage area shall be 500 m2.

                                                                                                                         3) Where baled raw pulp is stored in a building that is not sprinklered,
                                                                                                                         a) the maximum area of any individual storage area shall be 500 m2, and
                                                                                                                         b) the maximum height of storage shall be 6 m.

                                                                                                                         4) Where baled raw pulp is stored in a sprinklered building,
                                                                                                                         a) the maximum area of any individual storage area shall be 1 000 m2, and
                                                                                                                         b) the maximum height of storage shall be 6 m.

                                                                                                                         5) The sides of baled storage piles shall be inclined back from the base of the pile
                                                                                                                      with a slope of not less than 1 m for each 10 m of height.

                                                                                                    3.2.6.5.          Heating Equipment

                                                                                                                         1) Unless the use of fuel-fired appliances and electrical heating elements is
                                                                                                                      controlled in a manner such that they will not create a fire or explosion hazard, they
                                                                                                                      shall not be permitted in a storage area for combustible fibres.

                                                                                                                         2) Shields shall be provided that will prevent stored material from coming within
                                                                                                                      300 mm of any part of a heating system's heat distribution network.


                                                                                                    National Fire Code of Canada 2020                                                                       Division B 3-9
                                                                                                    3.2.7.1.                                                                                                             Division B

                                                                                                    3.2.7.                 Indoor Storage of Dangerous Goods

                                                                                                    3.2.7.1.               Application

                                                                                                                               1) Except as provided in Sentence (2) and Part 4 and except as otherwise specified
                                                                                                                           in this Code, this Subsection applies to buildings or parts of buildings where dangerous
                                                                                                                           goods in packages or containers are stored in a single fire compartment.

                                                                                                                              2) Where the amount of stored dangerous goods referred to in Sentence (1) does not
                                                                                                                           exceed the amount stated in Column C of Table 3.2.7.1., it shall be exempted from the
                                                                                                                           requirements of this Subsection.




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                                                                                                                              3) Where a product has multiple classes, the applicable small quantity exemption
                                                                                                                           referred to in Sentence (2) shall be determined using
                                                                                                                               a) Column A of Table 3.2.7.1. based on the class having precedence, as
                                                                                                                                  established in Section 2.8 of TC SOR/2001-286, “Transportation of Dangerous
                                                                                                                                  Goods Regulations (TDGR),”
                                                                                                                               b) Column B of Table 3.2.7.1. based on the class having precedence, as
                                                                                                                                  established in Table A-3.2.7.1.(3)(b), for controlled products under the
                                                                                                                                  “Workplace Hazardous Materials Information System (WHMIS)” as
                                                                                                                                  classified in Part 7 of HC SOR/2015-17, “Hazardous Products Regulations”
                                                                                                                                  (see Note A-3.2.7.1.(3)(b)), or
                                                                                                                               c) when the class having precedence cannot be established, Column C of
                                                                                                                                  Table 3.2.7.1. based on the lesser of the two small quantity exemptions.
                                                                                                                           (See Note A-3.2.7.1.(3).)

                                                                                                                                                                 Table 3.2.7.1.
                                                                                                                                               Small Quantity Exemptions for Dangerous Goods
                                                                                                                                Forming Part of Sentences 3.2.7.1.(2) and (3), 3.2.7.18.(2), and 3.3.4.1.(2) and (3)

                                                                                                                                                                        Column A                           Column B          Column C
                                                                                                                    NFC Class                                                                                            Maximum Exempt
                                                                                                                                                                                                            WHMIS
                                                                                                                                                                       TDG Class (1)                                     Amount of Stored
                                                                                                                                                                                                            Class (2)
                                                                                                                                                                                                                             Product
                                                                                                    Explosives                               1   Explosives                                                    —         See Article 3.1.1.3.
                                                                                                    Compressed Gases                             Gases                                                         A
                                                                                                                                                                                                              B1               25 kg (4)
                                                                                                        flammable gases/aerosols                     Division 1 (3) flammable gases
                                                                                                                                                                                                              B5        See Subsection 3.2.5.
                                                                                                        non-flammable, non-toxic gases               Division 2 non-flammable, non-toxic gases                 A               150 kg
                                                                                                                                             2
                                                                                                        oxidizing gases                              Division 2 with subsidiary Class 5.1                    A+C               75 kg (4)
                                                                                                                                                                                                             A+D1
                                                                                                        toxic gases                                  Division 3 (5) toxic gases                              A+D2                 0
                                                                                                                                                                                                             A+E
                                                                                                                                                                                                              B2
                                                                                                    Flammable Liquids                        3   Flammable Liquids                                                           See Part 4
                                                                                                                                                                                                              B3
                                                                                                    Flammable Solids                             Division 1 flammable solids                                  B4              100 kg (6)
                                                                                                    Pyrophoric Materials                     4   Division 2 substances liable to spontaneous combustion        —
                                                                                                                                                                                                                                50 kg
                                                                                                    Water-Reactive Substances                    Division 3 water-reactive substances                         B6
                                                                                                    Oxidizing Substances (7)                     Oxidizing Substances and Organic Peroxides                    —
                                                                                                                                                     Division 1 oxidizing substances (8)
                                                                                                                                                        Packing Group I                                        —
                                                                                                        oxidizers                            5                                                                            250 kg or 250 L
                                                                                                                                                        Packing Group II
                                                                                                                                                        Packing Group III
                                                                                                        organic peroxides                            Division 2 organic peroxides                             C (9)       100 kg or 100 L




                                                                                                    3-10 Division B                                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                                 3.2.7.2.

                                                                                                                                                                  Table 3.2.7.1. (Continued)

                                                                                                                                                                              Column A                                  Column B            Column C
                                                                                                                   NFC Class                                                                                                            Maximum Exempt
                                                                                                                                                                                                                         WHMIS
                                                                                                                                                                            TDG Class (1)                                               Amount of Stored
                                                                                                                                                                                                                         Class (2)
                                                                                                                                                                                                                                            Product
                                                                                                     Toxic and Infectious Substances                  Toxic and Infectious Substances                                       D
                                                                                                                                                          Division 1 toxic substances (8)                                   —
                                                                                                                                                              Packing Group I                                              D1A                   0
                                                                                                          toxic substances                      6             Packing Group II                                             D1B           100 kg or 100 L




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                                                                                                                                                                                                                           D2A
                                                                                                                                                              Packing Group III                                                        1 000 kg or 1 000 L
                                                                                                                                                                                                                           D2B
                                                                                                          infectious materials                            Division 2 infectious substances                                  D3                   0
                                                                                                     Radioactive Materials                      7     Radioactive Materials                                                 —           See Article 3.1.2.6.
                                                                                                                                                      Corrosives (8)                                                        —
                                                                                                                                                          Packing Group I                                                                500 kg or 500 L
                                                                                                     Corrosives                                 8
                                                                                                                                                          Packing Group II                                                  E          1 000 kg or 1 000 L
                                                                                                                                                          Packing Group III                                                            2 000 kg or 2 000 L
                                                                                                     Miscellaneous Dangerous Goods              9     Miscellaneous Products, Substances or Organisms                       —         See Article 3.1.2.1. (10)
                                                                                                     Dangerously Reactive Materials             —                                   —                                       F                    0

                                                                                                    Notes to Table 3.2.7.1.:
                                                                                                    (1)  The numbers refer to the class and division of dangerous goods as defined in TC SOR/2001-286, “Transportation of Dangerous Goods
                                                                                                         Regulations (TDGR).”
                                                                                                    (2) The categories and subcategories in the “Workplace Hazardous Materials Information System (WHMIS)” refer to controlled products classified in
                                                                                                         Part 7 of HC SOR/2015-17, “Hazardous Products Regulations.” See Note A-Table 3.2.7.1.
                                                                                                    (3) See Article 3.2.8.2.
                                                                                                    (4) See Note A-3.2.8.2.(2).
                                                                                                    (5) See Article 3.2.8.3.
                                                                                                    (6) 50 kg for nitrocellulose-based products; 10 kg for “strike anywhere” matches.
                                                                                                    (7) “Oxidizing substances” refers to solids or liquids, not gases.
                                                                                                    (8) The TDGR define “packing group” as “a group in which dangerous goods are included based on the inherent danger of the dangerous goods.”
                                                                                                         Packing Group I products are more hazardous than Packing Group III products.
                                                                                                    (9) Class C in the WHMIS applies to oxidizing materials. Oxidizers do not usually self-combust but they will feed a fire by supplying oxygen or cause
                                                                                                         other materials to suddenly ignite. Oxidizers exist in all three states: gas (oxygen, ozone), liquid (nitric acid, perchloric acid solutions) and solid
                                                                                                         (potassium permanganate, sodium chlorite). Some oxidizers, such as the organic peroxide family, have both combustibility and oxidizing properties,
                                                                                                         which means they can have strong reactions that can result in an explosion.
                                                                                                         The exempt amount listed for oxidizing materials in this Table applies to two categories of oxidizers based on the TDGR classification: oxidizing
                                                                                                         substances and organic peroxides. Since the WHMIS does not have a corresponding classification for these two categories of oxidizers, it was
                                                                                                         decided that the exempt amount applicable to Class C should be the more stringent one, thus reducing the potential that large quantities of
                                                                                                         oxidizing materials with combustibility properties will be stored without implementing the applicable safety measures in Subsection 3.2.7.
                                                                                                    (10) Small quantity exemptions may be determined by other authorities such as the TDGR, the WHMIS and environmental protection legislation.



                                                                                                    3.2.7.2.               Ignition Sources

                                                                                                                              1) Heating appliances shall not be permitted in a fire compartment used for the
                                                                                                                           storage of dangerous goods classified as flammable gases, flammable liquids, flammable
                                                                                                                           solids, pyrophoric materials, water-reactive substances, oxidizers or organic peroxides,
                                                                                                                           unless they are installed in a manner that will not create a fire or explosion hazard.

                                                                                                                              2) Smoking shall not be permitted within a fire compartment used for the storage of
                                                                                                                           dangerous goods and signs shall be posted in conformance with Article 2.4.2.2.

                                                                                                                              3) Except as provided in Subsection 3.1.3. and in Section 5.2., open flames and
                                                                                                                           spark-producing devices shall not be used in an area where dangerous goods are stored.
                                                                                                                           (See Note A-4.1.5.2.(1).)


                                                                                                    National Fire Code of Canada 2020                                                                                                        Division B 3-11
                                                                                                    3.2.7.3.                                                                                                   Division B

                                                                                                    3.2.7.3.               Ambient Conditions
                                                                                                                               1) Rooms or parts of buildings used for the storage of dangerous goods
                                                                                                                               a) shall be dry and cool, and
                                                                                                                               b) where the products being stored are capable of releasing flammable or toxic
                                                                                                                                  gases or vapours under normal ambient conditions, shall be provided with
                                                                                                                                  a ventilation system to exhaust such gases or vapours outdoors to an area
                                                                                                                                  where they will not return to the building (see Note A-3.2.7.3.(1)(b)).

                                                                                                    3.2.7.4.               Housekeeping
                                                                                                                             1) Areas where dangerous goods are stored shall be kept free of waste packaging




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                                                                                                                           materials, debris of any kind, or any spilled product.
                                                                                                                              2) Broken packages or containers of dangerous goods shall be moved to a safe
                                                                                                                           location and the product repackaged and labelled as soon as possible.

                                                                                                    3.2.7.5.               Storage Arrangements
                                                                                                                               1) The method of storage of dangerous goods shall
                                                                                                                               a) be determined to ensure the physical and chemical stability of the stored
                                                                                                                                  products,
                                                                                                                               b) except as provided in Sentences (2) and (5), not exceed the maximum
                                                                                                                                  heights of storage shown in Table 3.2.7.5., and
                                                                                                                               c) not exceed the maximum base areas for individual storage areas shown in
                                                                                                                                  Table 3.2.3.2. (see Note A-3.2.7.5.(1)(c)).
                                                                                                                              2) Storage heights for a protected storage area stated in Table 3.2.7.5. are permitted
                                                                                                                           to be exceeded provided the dangerous goods are stored on racks or shelves.
                                                                                                                              3) When a storage area is required by this Article to be protected, it shall be
                                                                                                                           sprinklered or protected with a special fire suppression system, in conformance with
                                                                                                                           Part 2 and good engineering practice with respect to specific dangerous goods. (See
                                                                                                                           Note A-3.2.7.9.(1).)
                                                                                                                              4) Stored dangerous goods other than compressed gases shall be kept not less than
                                                                                                                           100 mm above the floor level.
                                                                                                                              5) Flammable liquids and combustible liquids shall be stored in conformance with
                                                                                                                           Part 4.

                                                                                                                                                                Table 3.2.7.5.
                                                                                                                                              Storage Height Limits for Dangerous Goods, m
                                                                                                                                                Forming Part of Sentences 3.2.7.5.(1) and (2)

                                                                                                                     Packing Group (1)                      Unprotected Storage                     Protected Storage
                                                                                                      Packing Group I                                               1.8                                    2.4
                                                                                                      Packing Group II                                              2.4                                    4
                                                                                                      Packing Group III                                             4.5                                    6

                                                                                                    Notes to Table 3.2.7.5.:
                                                                                                    (1)   See Table 3.2.7.1.


                                                                                                                              6) Except as permitted in Table 3.2.7.6., solid and liquid dangerous goods classified
                                                                                                                           as oxidizers or organic peroxides shall be separated from the remainder of the building
                                                                                                                           in conformance with Sentence 3.3.6.2.(1) of Division B of the NBC.
                                                                                                                              7) Reactive materials shall be separated from the remainder of the building in
                                                                                                                           conformance with Sentence 3.3.6.2.(2) of Division B of the NBC.
                                                                                                                              8) Packages or containers of dangerous goods classified as organic peroxides shall
                                                                                                                           not be opened, or the product dispensed, in the same area where it is stored.


                                                                                                    3-12 Division B                                                                             National Fire Code of Canada 2020
                                                                                                    Division B                                                                                              3.2.7.6.

                                                                                                                        9) Except where the width of storage of dangerous goods is not more than 1.5 m,
                                                                                                                      measured out from the wall, wall clearances of not less than 400 mm shall be
                                                                                                                      maintained.

                                                                                                    3.2.7.6.          Separation from Other Dangerous Goods

                                                                                                                         1) Except as required in Sentences (3) and (4), Clause 3.2.8.2.(1)(g) and
                                                                                                                      Sentence 3.2.8.3.(2), dangerous goods shall be separated from other dangerous goods in
                                                                                                                      conformance with Table 3.2.7.6.

                                                                                                                         2) The fire-resistance rating of the fire separations delimiting each fire compartment
                                                                                                                      shall be determined in accordance with the applicable requirements of the Code. (See




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                                                                                                                      Note A-3.2.7.6.(2).)

                                                                                                                         3) In addition to the separation requirements in Sentence (1), dangerous goods shall
                                                                                                                      be stored in conformance with the information provided in the Safety Data Sheet for
                                                                                                                      the specific dangerous good. (See Note A-3.2.7.6.(3).)

                                                                                                                         4) Flammable liquids, combustible liquids and dangerous goods classified as corrosives
                                                                                                                      shall not be stored with dangerous goods classified as radioactive materials in quantities
                                                                                                                      or in a manner that would constitute an undue risk in the event of a fire.




                                                                                                    National Fire Code of Canada 2020                                                                      Division B 3-13
                                                                                            Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays



                                                                                                                                       Table 3.2.7.6.
                                                                                                                  Separation Chart for Storage of Dangerous Goods (1)(2)
                                                                                                   Forming Part of Sentences 3.2.7.5.(6), 3.2.7.6.(1), 3.2.7.9.(2), 3.3.4.3.(2) and 4.2.2.3.(2)

                                                                                                      Non-                                                                                                 Toxic Sub-                             Danger-
                                                                                                                                                                                                                                                              3.2.7.6.
                                                                                         Flammable                                                                       Water-re-
3-14 Division B

                                                                                                   flammable,   Oxidixing    Toxic     Flammable Flammable Pyrophoric                           Organic     stances/                               ously
                                            NFC Class                                      Gases/                                                                         active   Oxidizers                                   Corrosives
                                                                                                    Non-toxic    Gases       Gases       Liquids   Solids   Materials                          Peroxides   Infectious                             Reactive
                                                                                          Aerosols                                                                      Substances
                                                                                                      Gases                                                                                                 Materials                             Materials
                                                            TDG
                                                                                            2.1        2.2      2.2(5.1)      2.3         3         4.1        4.2         4.3        5.1         5.2          6                   8                 _
                                                           Class (3)
                                                                       WHMIS                                                                                                                                                       E
                                                                                          B1, B5        A         A+C       A+D, A+E    B2, B3      B4         —           B6          —          C            D                                     F
                                                                       Class (4)                                                                                                                                        Acid (5)       Base (6)
                                       Dangerously
                                                              —              F              X           X          X           X          X          X          X           X          X          X            X           X                X        P
                                     Reactive Materials
                                                                              Acid (5)      X           P          X          1m          1m        1m         1m           X          X          X           1m           P             1m          X
                                            Corrosives        8        E
                                                                              Base (6)      X           P         1m          1m          1m        1m         1m           X         1m          1m          1m          1m                P        X
                                     Toxic Substances/
                                         Infectious           6              D              X           P         1m          DS          DS        DS         DS          DS         1m          X            P          1m             1m          X
                                          Materials
                                     Organic Peroxides       5.2             C              X           P          X           X          X          X          X           X          X          P            X           X             1m          X
                                            Oxidizers        5.1             —              X           P          P          1m          X          X          X           X          P          X           1m           X             1m          X
                                          Water-reactive
                                                             4.3            B6              DS          P          X          DS          1m        DS         DS           P          X          X           DS           X                X        X
                                           Substances
                                            Pyrophoric
                                                             4.2             —              1m          P          X          1m          1m        1m          P          DS          X          X           DS          1m             1m          X
                                             Materials
                                     Flammable Solids        4.1            B4              P           P          X          1m          P          P         1m          DS          X          X           DS          1m             1m          X
                                     Flammable Liquids        3            B2, B3           P           P          X           X          P          P         1m          1m          X          X           DS          1m             1m          X
                                           Toxic Gases       2.3       A+D, A+E             X           P         1m           P          X         1m         1m          DS         1m          X           DS          1m             1m          X
                                      Oxidizing Gases      2.2(5.1)         A+C             X           P          P          1m          X          X          X           X          P          X           1m           X             1m          X
                                      Non-flammable,
                                                             2.2             A              P           P          P           P          P          P          P           P          P          P            P           P                P        X
                                      Non-toxic Gases
                                            Flammable
                                                             2.1           B1, B5           P           P          X           X          P          P         1m          DS          X          X            X           X                X        X
                                          Gases/Aerosols


                                    Notes to Table 3.2.7.6.:
                                    (1)     For the purpose of this Table:
                                                 • If a dangerous good has both a TDG Class and a WHMIS Class, the TDG Class shall apply.
                                                 • If two dangerous goods each have a TDG Class with or without a WHMIS Class, the TDG Class shall apply.
                                                 • If two dangerous goods each have a WHMIS Class but no TDG Class, the WHMIS Class shall apply.
                                                 • If a dangerous good has more than one WHMIS Class, the Class having precedence shall be determined using Table A-3.2.7.1.(3)(b).
National Fire Code of Canada 2020




                                                 • If one dangerous good has a WHMIS Class but no TDG Class and another dangerous good has a TDG Class but no WHMIS Class, the TDG Class and the WHMIS Class in combination shall apply.
                                                                                                                                                                                                                                                              Division B
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                                                                                                                          Table 3.2.7.6. (Continued)

                                    (2)   Definitions for entries in this table:
                                                    X = incompatible dangerous goods: these goods shall be stored in separate fire compartments.
                                                   1m = incompatible dangerous goods: these goods shall be separated by a horizontal distance of not less than 1 m.
                                                    P = permitted dangerous goods: these goods are permitted to be stored close together.
                                                                                                                                                                                                                                        Division B
                                                   DS = refer to Safety Data Sheet for these dangerous goods. See Note A-Table 3.2.7.6.
                                                 A+C = controlled products of Class A combined with C
                                                 A+D = controlled products of Class A combined with D
                                                  A+E = controlled products of Class A combined with E
                                              B2, B3 = controlled products of Class B2 or B3
National Fire Code of Canada 2020




                                              B1, B5 = controlled products of class B1 or B5
                                    (3)   The numbers refer to the classes and divisions of dangerous goods as defined in TC SOR/2001-286, “Transportation of Dangerous Goods Regulations (TDGR).”
                                    (4)   The letters and numbers refer to the categories and subcategories of controlled products under the “Workplace Hazardous Materials Information System (WHMIS)” as classified in Part 7 of HC
                                          SOR/2015-17, “Hazardous Products Regulations.” See Note A-Table 3.2.7.1.
                                    (5)   Acid: corrosive materials with a pH below 2 according to the Safety Data Sheet. See Note A-Table 3.2.7.6.
                                    (6)   Base: corrosive materials with a pH above 11.5 according to the Safety Data Sheet. See Note A-Table 3.2.7.6.




Division B 3-15
                                                                                                                                                                                                                                        3.2.7.6.
                                                                                                    3.2.7.7.                                                                                           Division B

                                                                                                    3.2.7.7.          Corrosion Protection
                                                                                                                         1) Measures shall be taken to prevent or minimize corrosion or deterioration of
                                                                                                                      shelving, racks, and piping system components due to contact with stored dangerous
                                                                                                                      goods.

                                                                                                    3.2.7.8.          Flooring Materials
                                                                                                                         1) Floors in areas where dangerous goods are stored shall be
                                                                                                                         a) constructed in conformance with Sentence 3.3.6.7.(1) of Division B of the
                                                                                                                            NBC, and
                                                                                                                         b) maintained as an impervious membrane.




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                                                                                                                         2) Dangerous goods classified as oxidizers or organic peroxides shall not be stored
                                                                                                                      on combustible floors or platforms.

                                                                                                    3.2.7.9.          Fire Suppression Systems
                                                                                                                         1) Except as permitted in Sentences (2) and (3) and in Part 4, buildings used for the
                                                                                                                      storage of dangerous goods regulated by this Subsection shall be equipped throughout
                                                                                                                      with a sprinkler system or other fire suppression system, designed in conformance
                                                                                                                      with Part 2 and good engineering practice with respect to specific dangerous goods.
                                                                                                                      (See Note A-3.2.7.9.(1).)
                                                                                                                         2) Buildings described in Sentence (1) need not be equipped throughout with a
                                                                                                                      sprinkler system or other fire suppression system, provided that
                                                                                                                          a) the sum of individual storage areas in the building used for the storage of
                                                                                                                             dangerous goods, other than substances classified as miscellaneous dangerous
                                                                                                                             goods with no other class and those covered in Part 4, does not exceed
                                                                                                                             100 m2, and
                                                                                                                         b) the dangerous goods are
                                                                                                                                i) separated in conformance with Table 3.2.7.6., and
                                                                                                                               ii) stored in fire compartments separated from the remainder of
                                                                                                                                   the building by a fire separation having a fire-resistance rating
                                                                                                                                   of not less than 2 h.
                                                                                                                         3) Buildings described in Sentence (1) need not be equipped throughout with a
                                                                                                                      sprinkler system or other fire suppression system, provided that storage consists only
                                                                                                                      of dangerous goods classified as non-flammable, non-toxic gases with no subsidiary class
                                                                                                                      of oxidizing substances.

                                                                                                    3.2.7.10.         Smoke Venting
                                                                                                                          1) Where the collective individual storage areas for dangerous goods exceed 10 m2 in a
                                                                                                                      fire compartment, means shall be provided for manual or automatic venting of smoke
                                                                                                                      and toxic gases from the storage area under fire conditions. (See Note A-3.2.7.10.(1).)

                                                                                                    3.2.7.11.         Spill Control
                                                                                                                         1) Measures to control spilled liquid or solid dangerous goods shall be provided in
                                                                                                                      conformance with Subsection 4.1.6.
                                                                                                                         2) Materials or liquids used in the cleanup of spills and leakages of dangerous
                                                                                                                      goods shall be
                                                                                                                         a) compatible and non-reactive with the dangerous goods being cleaned up, and
                                                                                                                         b) disposed of in conformance with Subsection 4.1.6.

                                                                                                    3.2.7.12.         Fire Department Access
                                                                                                                         1) Except as provided in Sentences (2) and (3), fire department access to buildings
                                                                                                                      described in Article 3.2.7.1. shall be in conformance with Section 2.5.
                                                                                                                          2) Where the collective individual storage area for dangerous goods exceeds 10 m2,
                                                                                                                      buildings regulated by Sentence (1) shall be accessible to fire department vehicles from
                                                                                                                      at least 2 sides for the purpose of firefighting. (See Note A-3.2.7.12.(2).)


                                                                                                    3-16 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                            3.2.7.18.

                                                                                                                         3) In buildings regulated by Sentence (1), access openings to each storey provided
                                                                                                                      in conformance with the NBC shall be not less than 750 mm wide by 1 100 mm high.
                                                                                                                      (See Note A-3.2.7.12.(3).)

                                                                                                    3.2.7.13.         Labels
                                                                                                                         1) Products classified as dangerous goods shall display appropriate identifying
                                                                                                                      labels from the time they enter a facility until they are issued as finished products or
                                                                                                                      waste material. (See Note A-3.2.7.13.(1).)

                                                                                                    3.2.7.14.         Placards




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                                                                                                                         1) Individual storage areas used for the storage of dangerous goods and laboratories
                                                                                                                      where dangerous goods are used shall be clearly designated as such by posted placards
                                                                                                                      conforming to TC SOR/2001-286, “Transportation of Dangerous Goods Regulations
                                                                                                                      (TDGR),” and Sentences (2) to (4). (See Note A-3.2.7.14.(1).)
                                                                                                                         2) Where the dangerous goods identified in Sentence (1) consist of a single product,
                                                                                                                      only the UN number need be posted.
                                                                                                                         3) Where the dangerous goods identified in Sentence (1) consist of multiple products
                                                                                                                      within the same class, the individual class and division placard shall be posted.
                                                                                                                         4) Where the dangerous goods identified in Sentence (1) consist of more than one
                                                                                                                      class of products, a placard for each individual class, or the ”Danger” placard shown
                                                                                                                      in TC SOR/2001-286, “Transportation of Dangerous Goods Regulations (TDGR),” shall
                                                                                                                      be posted at the entrance to the storage area.
                                                                                                                         5) Individual storage areas described in Sentence (1) shall be identified in the fire
                                                                                                                      safety plan as required in Article 2.8.2.4.

                                                                                                    3.2.7.15.         Training
                                                                                                                         1)   In a building regulated by this Subsection, at least one person shall be
                                                                                                                         a)   trained in conformance with Sentence (2),
                                                                                                                         b)   in responsible charge during operating hours, and
                                                                                                                         c)   available to respond to a day or night emergency.
                                                                                                                         2) The person in responsible charge specified in Sentence (1) shall be trained in
                                                                                                                      the correct procedures for the handling, storing and offering for transport of dangerous
                                                                                                                      goods in accordance with
                                                                                                                          a) the appropriate federal, provincial, or territorial occupational safety and
                                                                                                                              health regulations, or
                                                                                                                          b) in the absence of regulations mentioned in Clause (a),
                                                                                                                                 i) TC SOR/2001-286, “Transportation of Dangerous Goods
                                                                                                                                    Regulations (TDGR),” or
                                                                                                                                ii) the WHMIS 1988, “Workplace Hazardous Materials
                                                                                                                                    Information System (WHMIS).”
                                                                                                                         3) All employees involved in the storage and handling of dangerous goods shall be
                                                                                                                      trained in safe handling procedures and correct responses to an emergency situation.

                                                                                                    3.2.7.16.         Unauthorized Access
                                                                                                                        1) An area used for the storage of dangerous goods shall be secured against
                                                                                                                      unauthorized access.

                                                                                                    3.2.7.17.         Separation from Combustible Products
                                                                                                                         1) Except for Class I commodities, dangerous goods shall not be stored in the same
                                                                                                                      individual storage area with other products listed in Sentence 3.2.1.1.(1).

                                                                                                    3.2.7.18.         Storage of Oxidizers in Mercantile Occupancies
                                                                                                                         1) This Article applies to mercantile occupancies.


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 3-17
                                                                                                    3.2.8.1.                                                                                           Division B

                                                                                                                         2) Dangerous goods classified as oxidizers that are located within mercantile
                                                                                                                      occupancies in quantities not exceeding those permitted by Table 3.2.7.1. shall be
                                                                                                                      separated from ordinary combustible material by a distance of at least 1 m.
                                                                                                                         3) A clear space of not less than 2.4 m shall be maintained between the
                                                                                                                      oxidizing substances identified in Sentence (2) and any other dangerous goods. (See
                                                                                                                      Note A-3.1.2.6.)

                                                                                                    3.2.8.            Indoor Storage of Compressed Gases
                                                                                                    3.2.8.1.          Application




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                                                                                                                         1) Except as provided in Subsection 3.1.1., this Subsection applies to the indoor
                                                                                                                      storage of dangerous goods classified as compressed gases.

                                                                                                    3.2.8.2.          Flammable Gases
                                                                                                                         1) Except as provided in Sentences (2) and (3), cylinders of dangerous goods
                                                                                                                      classified as flammable gases stored indoors shall be located in a room that
                                                                                                                          a) is separated from the remainder of the building in conformance with
                                                                                                                              Sentence 3.3.6.3.(1) of Division B of the NBC,
                                                                                                                          b) is located on an exterior wall of the building,
                                                                                                                          c) can be entered from the exterior, and whose closures leading to the interior
                                                                                                                              of the building are in conformance with Sentence 3.3.6.3.(1) of Division B
                                                                                                                              of the NBC,
                                                                                                                          d) is designed to prevent critical structural and mechanical damage from
                                                                                                                              an internal explosion in conformance with good engineering practice
                                                                                                                              such as that described in NFPA 68, “Standard on Explosion Protection by
                                                                                                                              Deflagration Venting” (see Note A-3.2.8.2.(1)(d)),
                                                                                                                          e) is provided with natural or mechanical ventilation in conformance with
                                                                                                                              Subsection 4.1.7.,
                                                                                                                          f) does not contain fuel-fired appliances or high-temperature heating elements,
                                                                                                                              and
                                                                                                                          g) is used for no purpose other than the storage of dangerous goods classified
                                                                                                                              as compressed gases.
                                                                                                                         2) Cylinders of dangerous goods classified as flammable, lighter-than-air gases
                                                                                                                      are permitted to be stored outside of a room described in Sentence (1), provided the
                                                                                                                      aggregate capacity per fire compartment of expanded gas outside of the room is not
                                                                                                                      more than
                                                                                                                          a) 60 m3 in a building of combustible construction that is not sprinklered, and
                                                                                                                          b) 170 m3 in a sprinklered building or in a building of noncombustible construction.
                                                                                                                      (See Note A-3.2.8.2.(2).)
                                                                                                                         3) The storage of “single-trip” non-refillable cylinders (i.e. TC-39, TC-2P, and
                                                                                                                      TC-2Q) with water capacities of more than 375 g and less than 1.13 kg located within
                                                                                                                      mercantile occupancies shall conform to the provisions stipulated in CSA B149.2,
                                                                                                                      “Propane storage and handling code.”

                                                                                                    3.2.8.3.          Indoor Storage of Anhydrous Ammonia and Toxic or Oxidizing Gases
                                                                                                                         1) Cylinders of anhydrous ammonia or dangerous goods classified as toxic or
                                                                                                                      oxidizing gases stored indoors shall be located in a room that
                                                                                                                         a) is separated from the remainder of the building in conformance with
                                                                                                                             Sentence 3.3.6.3.(2) of Division B of the NBC,
                                                                                                                         b) is located on an exterior wall,
                                                                                                                         c) can be entered from the exterior, and whose closures leading to the interior
                                                                                                                             of the building are in conformance with Sentence 3.3.6.3.(2) of Division B
                                                                                                                             of the NBC, and
                                                                                                                         d) is provided with ventilation to the outdoors.
                                                                                                                         2) Cylinders of gases described in Sentence (1) shall not be stored in a room
                                                                                                                      containing combustible materials.


                                                                                                    3-18 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                               3.3.1.1.

                                                                                                    3.2.9.            Indoor Storage of Ammonium Nitrate
                                                                                                    3.2.9.1.          Application
                                                                                                                         1) This Subsection shall apply to the storage of ammonium nitrate mixtures
                                                                                                                      (Class 5.1 oxidizing substances) in quantities exceeding 1 000 kg inside buildings. (See
                                                                                                                      Note A-3.2.9.1.(1).)
                                                                                                                        2) The requirements of Subsection 3.2.3. regarding Class II commodities shall also
                                                                                                                      apply to bagged storage of ammonium nitrate. (See Note A-3.2.1.1.(1)(a).)

                                                                                                    3.2.9.2.          Storage Buildings




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                                                                                                                         1) The occupancy classification of buildings intended for the storage of ammonium
                                                                                                                      nitrate shall conform to Sentence 3.3.6.6.(1) of Division B of the NBC.
                                                                                                                         2) The height of buildings intended for the storage of ammonium nitrate shall
                                                                                                                      conform to Sentence 3.3.6.6.(2) of Division B of the NBC.
                                                                                                                         3) Buildings intended for the storage of ammonium nitrate shall
                                                                                                                         a) conform to Sentence 3.3.6.6.(3) of Division B of the NBC,
                                                                                                                         b) have ventilation in conformance with Sentence 3.3.6.6.(4) of Division B of
                                                                                                                            the NBC, and
                                                                                                                         c) be designed to prevent the ammonium nitrate from coming into contact
                                                                                                                            with building materials that may react with it as described in Sentence
                                                                                                                            3.3.6.6.(6) of Division B of the NBC.
                                                                                                                         4) All flooring in storage areas shall be constructed of noncombustible materials,
                                                                                                                      as stated in Sentence 3.3.6.6.(5) of Division B of the NBC.
                                                                                                                         5) Buildings used for the storage of ammonium nitrate shall incorporate spatial
                                                                                                                      separation and exposure protection in conformance with Subsection 3.2.3. of Division
                                                                                                                      B of the NBC. (See Note A-3.2.9.2.(5).)

                                                                                                    3.2.9.3.          Industrial Trucks
                                                                                                                         1) In addition to the requirements of Subsection 3.1.3., industrial trucks used or
                                                                                                                      stored within buildings where ammonium nitrate is also stored shall be maintained
                                                                                                                      so that fuels or hydraulic fluids do not contaminate the ammonium nitrate. (See
                                                                                                                      Note A-3.2.9.3.(1).)
                                                                                                                        2) Fuel-dispensing operations shall not be carried out in buildings where
                                                                                                                      ammonium nitrate is stored.
                                                                                                                         3) An internal combustion engine shall not be permitted to remain unattended in
                                                                                                                      a building where ammonium nitrate is stored, unless the engine is located in an area
                                                                                                                      that will prevent the spread of a fire originating in the engine.
                                                                                                                         4) Industrial trucks used for the transportation of ammonium nitrate shall be
                                                                                                                      cleaned of remaining material following use.

                                                                                                    3.2.9.4.          Portable Extinguishers
                                                                                                                         1) In addition to the requirements of Part 2, pressurized water portable fire
                                                                                                                      extinguishers having a rating of 2-A or larger shall be installed. (See Note A-3.2.9.4.(1).)


                                                                                                    Section 3.3. Outdoor Storage
                                                                                                    3.3.1.            Scope
                                                                                                    3.3.1.1.          Application
                                                                                                                         1) Except as permitted in Sentence (2), this Section shall apply to the outdoor
                                                                                                                      storage of the following products:
                                                                                                                          a) Class III and IV commodities, and Group A, B and C plastics, as described
                                                                                                                             in Section 3.2.,
                                                                                                                          b) rubber tires,


                                                                                                    National Fire Code of Canada 2020                                                                       Division B 3-19
                                                                                                    3.3.2.1.                                                                                          Division B

                                                                                                                         c) forest products, including lumber, timber and wood pallets,
                                                                                                                         d) forest by-products, including wood chips and hogged material (see
                                                                                                                            Note A-3.3.1.1.(1)(d)),
                                                                                                                         e) manufactured buildings (see Note A-3.3.1.1.(1)(e)),
                                                                                                                         f) wrecked vehicles in salvage yards, and
                                                                                                                         g) dangerous goods in packages or containers, as covered in Subsection 3.3.4.
                                                                                                                         2) This Section shall not apply to
                                                                                                                         a) a site where the total storage area is not more than 100 m 2, except
                                                                                                                                i) for distance requirements between stored products and a
                                                                                                                                   building, and
                                                                                                                               ii) requirements for dangerous goods classified as compressed




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                                                                                                                                   gases in Subsection 3.3.5.,
                                                                                                                         b) Class I and II commodities, as classified in Section 3.2.,
                                                                                                                         c) intermodal shipping containers, except when containing dangerous goods
                                                                                                                             (see Note A-3.3.1.1.(2)(c)),
                                                                                                                         d) buried products and landfill operations,
                                                                                                                         e) products stored on the roof of a building,
                                                                                                                          f) vehicles in parking areas or parking lots,
                                                                                                                         g) logs and similar untreated forest products in ranked piles (see
                                                                                                                             Note A-3.3.1.1.(2)(g)), or
                                                                                                                         h) bulk products, except as described in Clause (1)(d).

                                                                                                    3.3.2.            General
                                                                                                    3.3.2.1.          Application
                                                                                                                         1) Unless otherwise specified, this Subsection shall apply to the outdoor storage
                                                                                                                      of any product covered in this Section.

                                                                                                    3.3.2.2.          Height
                                                                                                                         1) The maximum permitted height of any individual storage area shall
                                                                                                                         a) be determined to ensure the physical stability of the stored products under
                                                                                                                            normal circumstances as well as under fire conditions,
                                                                                                                         b) be determined according to its base area and shape, and the type of
                                                                                                                            packaging, combustibility and chemical reactivity of the stored products,
                                                                                                                            and
                                                                                                                         c) not exceed the limits specified in Subsections 3.3.3. and 3.3.4.

                                                                                                    3.3.2.3.          Individual Storage Areas and Clearances
                                                                                                                         1) Except as provided in Sentence (2), the size limits and clearances for individual
                                                                                                                      storage areas shall conform to Subsections 3.3.3. and 3.3.4.
                                                                                                                         2) An outdoor storage area shall be arranged such that there is a clear space of
                                                                                                                      not less than
                                                                                                                         a) 30 m between stored products and brush or forested areas, and
                                                                                                                         b) 6 m between stored products and uncontrolled grass or weeds.

                                                                                                    3.3.2.4.          Storage beneath Power Lines
                                                                                                                         1) Products covered in this Section shall not be stored beneath electrical power
                                                                                                                      lines.

                                                                                                    3.3.2.5.          Fire Department Access
                                                                                                                         1) Except as provided in Sentence (2), an access route constructed in conformance
                                                                                                                      with Subsection 3.2.5. of Division B of the NBC shall be provided to permit the
                                                                                                                      approach of fire department vehicles to within 60 m travelling distance of any part of
                                                                                                                      an individual storage area.
                                                                                                                         2) Where the total storage area exceeds 6 000 m2, the access route required in
                                                                                                                      Sentence (1) shall be connected with a public thoroughfare in at least 2 locations.


                                                                                                    3-20 Division B                                                                      National Fire Code of Canada 2020
                                                                                                    Division B                                                                                            3.3.2.13.

                                                                                                    3.3.2.6.          Fencing
                                                                                                                         1)   An outdoor storage area shall be surrounded by a firmly anchored fence that is
                                                                                                                         a)   substantially constructed to discourage climbing and unauthorized entry,
                                                                                                                         b)   not less than 1.8 m high, and
                                                                                                                         c)   provided with gates that shall be locked when the storage area is not staffed.
                                                                                                                         2) When in a fire department access route, the gates required in Clause (1)(c) shall
                                                                                                                      be of adequate width and design, and in a location that readily permits the entry of fire
                                                                                                                      department vehicles, in conformance with Article 3.3.2.5. (See Note A-3.3.2.6.(2).)

                                                                                                    3.3.2.7.          Maintenance




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                                                                                                                         1) Any access route, gateway or clear space required in this Section shall be
                                                                                                                         a) maintained in conformance with Section 2.5., and
                                                                                                                         b) kept free of obstructions and piles of snow.
                                                                                                                        2) Private hydrants, fire department connections and private valves controlling
                                                                                                                      water supplies to fire protection systems shall be
                                                                                                                         a) maintained in conformance with Part 6, and
                                                                                                                         b) kept accessible to firefighters and their equipment at all times.

                                                                                                    3.3.2.8.          Ignition Sources
                                                                                                                         1) Unless controlled in a manner that will not create a fire hazard, a device,
                                                                                                                      operation or activity that produces open flames, sparks or heat shall not be permitted
                                                                                                                      in an outdoor storage area. (See Note A-4.1.5.2.(1).)
                                                                                                                         2) Except as provided in Subsection 2.4.2., smoking shall not be permitted in
                                                                                                                      an outdoor storage area.
                                                                                                                         3) Except as provided in Subsection 2.6.2., the burning of materials in an outdoor
                                                                                                                      storage area shall be performed only in a burner that is
                                                                                                                          a) designed, constructed and maintained in conformance with good
                                                                                                                             engineering practice, and
                                                                                                                          b) located not less than 15 m from a building or stored products.

                                                                                                    3.3.2.9.          Fire Safety Plan
                                                                                                                         1) A fire safety plan conforming to Section 2.8. shall be prepared.

                                                                                                    3.3.2.10.         Portable Extinguishers
                                                                                                                         1) Any building located in an outdoor storage area shall be provided with portable
                                                                                                                      extinguishers.
                                                                                                                         2) Each motorized vehicle operating in an outdoor storage area shall be equipped
                                                                                                                      with at least one portable extinguisher having a minimum rating of 2-A:30-B:C.

                                                                                                    3.3.2.11.         Site Preparation
                                                                                                                         1) The storage site shall be
                                                                                                                         a) level, and
                                                                                                                         b) solid ground or paved with asphalt, concrete or other hard surface material.

                                                                                                    3.3.2.12.         Fuel Dispensing
                                                                                                                         1) Except as provided in Sentence (2), the dispensing of flammable liquids or
                                                                                                                      combustible liquids into the fuel tank of a vehicle shall conform to Section 4.6.
                                                                                                                         2) A clear space of not less than 6 m shall be maintained between the stored
                                                                                                                      products and fuel dispensers.

                                                                                                    3.3.2.13.         Spill Control
                                                                                                                         1) Provision shall be made for the safe drainage and containment of waste oils
                                                                                                                      or dangerous goods emptied or escaping from stored products under normal storage
                                                                                                                      conditions or in a fire situation, in conformance with Subsection 4.1.6.


                                                                                                    National Fire Code of Canada 2020                                                                     Division B 3-21
                                                                                                    3.3.2.14.                                                                                                              Division B

                                                                                                    3.3.2.14.              Fire Separation
                                                                                                                              1) It is permitted to reduce the clear space between individual storage areas
                                                                                                                           prescribed in this Section if a noncombustible fire separation or a dirt berm, not less than
                                                                                                                           1.5 times the height of the stored products, is provided.

                                                                                                    3.3.2.15.              Fire Protection
                                                                                                                               1) It is permitted to increase the height and size of individual storage areas prescribed
                                                                                                                           in this Section if fire extinguishing measures conforming to good engineering practice
                                                                                                                           are provided.




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                                                                                                    3.3.3.                 General Outdoor Storage
                                                                                                    3.3.3.1.               Application
                                                                                                                              1) This Subsection applies to the outdoor storage of products other than dangerous
                                                                                                                           goods.

                                                                                                    3.3.3.2.               Individual Storage Areas and Clearance
                                                                                                                              1) Except as provided in Sentences (2) to (4), the size and clearances for individual
                                                                                                                           storage areas shall conform to Table 3.3.3.2. (See Note A-3.3.3.2.(1).)
                                                                                                                              2) Except as permitted in Sentences (3) and (4), a clear space of not less than 15 m
                                                                                                                           shall be maintained between stored products and a building on the same property to
                                                                                                                           reduce the risk of fire spreading from the outdoor storage area to the building.

                                                                                                                                                                      Table 3.3.3.2.
                                                                                                                                                  Size and Clearances for Individual Storage Areas (ISA)
                                                                                                                                                           Forming Part of Sentence 3.3.3.2.(1)

                                                                                                                                                                                           Max. Height of         Min. Clear Space Around
                                                                                                                     Product Classification (1)                  Max. Base Area, m2
                                                                                                                                                                                            Storage, m                  Each ISA, m
                                                                                                      Class III and IV commodities, Group A, B and C                   1 000                    ≤3                            6
                                                                                                      plastics, lumber, timber, manufactured buildings,                1 000                > 3 but ≤ 6           twice the height of storage
                                                                                                      wrecked vehicles
                                                                                                      Wood chips, hogged material                                     15 000                    18                            9
                                                                                                      Rubber tires, combustible pallets                                1 000                     3                            15

                                                                                                    Notes to Table 3.3.3.2.:
                                                                                                    (1)   See Sentence 3.3.1.1.(1).


                                                                                                                             3) The clearance requirement stated in Sentence (2) is permitted to be waived
                                                                                                                           where
                                                                                                                             a) the stored products do not consist of wood chips, hogged material, rubber
                                                                                                                                 tires or combustible pallets,
                                                                                                                             b) the exposed wall of the building has a fire-resistance rating of not less than
                                                                                                                                 2 h, and
                                                                                                                             c) the stored products are separated from any unprotected wall opening by a
                                                                                                                                 horizontal distance of not less than
                                                                                                                                     i) 3 m on either side of the opening, and
                                                                                                                                    ii) 6 m perpendicularly in front of the opening.
                                                                                                                             4) The clearance requirement stated in Sentence (2) is permitted to be waived
                                                                                                                           where an individual storage area has a base area not greater than 5 m2.

                                                                                                    3.3.3.3.               Rubber Tires
                                                                                                                              1) Any access route required in Article 3.3.2.5. shall be located so that a clear
                                                                                                                           space of not less than 6 m is provided between stored rubber tires and the nearest
                                                                                                                           side of the access route.


                                                                                                    3-22 Division B                                                                                         National Fire Code of Canada 2020
                                                                                                    Division B                                                                                               3.3.4.7.

                                                                                                    3.3.4.            Outdoor Storage of Dangerous Goods
                                                                                                    3.3.4.1.          Application
                                                                                                                        1) Except as provided in Part 4 or otherwise specified in this Code, this Subsection
                                                                                                                      applies to the outdoor storage of dangerous goods in packages or containers.
                                                                                                                         2) The storage of dangerous goods in quantities exceeding the maximum exempted
                                                                                                                      amounts stated in Table 3.2.7.1., in a single individual storage area, shall conform to
                                                                                                                      this Subsection.
                                                                                                                         3) Where a product has multiple classes, the applicable small quantity exemption
                                                                                                                      referred to in Sentence (2) shall be determined using




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                                                                                                                          a) Column A of Table 3.2.7.1. based on the class having precedence, as
                                                                                                                             established in Section 2.8 of TC SOR/2001-286, “Transportation of Dangerous
                                                                                                                             Goods Regulations (TDGR),”
                                                                                                                          b) Column B of Table 3.2.7.1. based on the class having precedence, as
                                                                                                                             established in Table A-3.2.7.1.(3)(b), for controlled products under the
                                                                                                                             “Workplace Hazardous Materials Information System (WHMIS)” as
                                                                                                                             classified in Part 7 of HC SOR/2015-17, “Hazardous Products Regulations,”
                                                                                                                             or
                                                                                                                          c) when the class having precedence cannot be established, Column C of
                                                                                                                             Table 3.2.7.1. based on the lesser of the two small quantity exemptions.
                                                                                                                      (See Note A-3.2.7.1.(3).)

                                                                                                    3.3.4.2.          Individual Storage Areas and Clearances
                                                                                                                         1) An individual storage area for dangerous goods shall not be greater than 1 000 m2.
                                                                                                                         2) Except for the distance between a building and cylinders of dangerous goods
                                                                                                                      classified as compressed gases, a clear space of not less than 6 m shall be provided
                                                                                                                      around each individual storage area for dangerous goods. (See Note A-3.3.3.2.(1).)
                                                                                                                         3) Dangerous goods shall not be stored to a height greater than 6 m.

                                                                                                    3.3.4.3.          Separation from Other Dangerous Goods
                                                                                                                         1) Except as provided in Sentences (2) and 3.3.4.8.(1), dangerous goods shall be
                                                                                                                      separated from other dangerous goods in conformance with Article 3.2.7.6.
                                                                                                                          2) Incompatible dangerous goods that are not allowed in Table 3.2.7.6. to be stored
                                                                                                                      in the same fire compartment are permitted to be separated by a minimum horizontal
                                                                                                                      distance of 3 m in lieu of a fire separation when in an outdoor storage area.

                                                                                                    3.3.4.4.          Separation from Combustible Products
                                                                                                                         1) Dangerous goods and other products described in Sentence 3.3.1.1.(1) shall not be
                                                                                                                      stored in the same individual storage area.

                                                                                                    3.3.4.5.          Identification
                                                                                                                        1) The outdoor storage of dangerous goods shall conform to Articles 3.2.7.13.
                                                                                                                      and 3.2.7.14.

                                                                                                    3.3.4.6.          Training
                                                                                                                         1) The training of personnel involved in the outdoor storage of dangerous goods
                                                                                                                      shall conform to Article 3.2.7.15.

                                                                                                    3.3.4.7.          Safety Precautions
                                                                                                                         1) When dangerous goods are stored outside of a building, safety precautions shall
                                                                                                                      be taken to prevent undesirable reactions from the effects of atmospheric conditions.
                                                                                                                         2) Damaged or leaking packages or containers of dangerous goods shall be moved
                                                                                                                      to a safe location and the product repackaged and labelled as soon as possible.


                                                                                                    National Fire Code of Canada 2020                                                                     Division B 3-23
                                                                                                    3.3.4.8.                                                                                                        Division B

                                                                                                    3.3.4.8.              Intermodal Shipping Containers
                                                                                                                             1) Intermodal shipping containers used for the transportation of dangerous
                                                                                                                          goods, as well as their contents, shall be stored in conformance with the segregation
                                                                                                                          requirements stated in IMO 2012, “International Maritime Dangerous Goods Code.”
                                                                                                                          (See Note A-3.3.1.1.(2)(c).)

                                                                                                    3.3.5.                Outdoor Storage of Compressed Gases
                                                                                                    3.3.5.1.              Application
                                                                                                                             1) Except as provided in Subsection 3.1.1., this Subsection applies to the outdoor




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                                                                                                                          storage of dangerous goods classified as compressed gases.

                                                                                                    3.3.5.2.              Location
                                                                                                                             1) Where cylinders of dangerous goods classified as compressed gases are stored
                                                                                                                          outdoors, they shall be
                                                                                                                             a) supported on raised concrete or other noncombustible platforms, and
                                                                                                                             b) located in an enclosure fenced in conformance with Article 3.3.2.6.

                                                                                                    3.3.5.3.              Clearances
                                                                                                                             1) Except as provided in Sentence (2), cylinders of anhydrous ammonia or
                                                                                                                          dangerous goods classified as flammable or toxic gases that are stored outdoors shall be
                                                                                                                          not less than
                                                                                                                             a) 1.5 m from any building opening, if the aggregate capacity of expanded
                                                                                                                                  gas is not more than 170 m3,
                                                                                                                             b) 7.5 m from any building opening, if the aggregate capacity of expanded gas
                                                                                                                                  is more than 170 m3 but less than 500 m3, and
                                                                                                                              c) 15 m from any building opening, if the aggregate capacity of expanded gas is
                                                                                                                                  500 m3 or more.
                                                                                                                          (See Note A-3.2.8.2.(2).)
                                                                                                                             2) The distances required in Sentence (1) need not apply where the building
                                                                                                                          opening leads into a room conforming to Subsection 3.2.8. that is used for storing
                                                                                                                          dangerous goods classified as compressed gases.


                                                                                                    Section 3.4. Objectives and Functional Statements
                                                                                                    3.4.1.                Objectives and Functional Statements
                                                                                                    3.4.1.1.              Attribution to Acceptable Solutions
                                                                                                                              1) For the purposes of compliance with this Code as required in
                                                                                                                          Clause 1.2.1.1.(1)(b) of Division A, the objectives and functional statements attributed
                                                                                                                          to the acceptable solutions in this Part shall be the objectives and functional statements
                                                                                                                          listed in Table 3.4.1.1. (See Note A-1.1.2.1.(1).)

                                                                                                                          Table 3.4.1.1.                                                Table 3.4.1.1. (Continued)
                                                                                                      Objectives and Functional Statements Attributed to the
                                                                                                                  Acceptable Solutions in Part 3                      Provision          Functional Statements and Objectives (1)
                                                                                                                Forming Part of Sentence 3.4.1.1.(1)                  3.1.1.4. Compressed Gases

                                                                                                     Provision            Functional Statements and Objectives (1)    (2)         [F01,F02,F03,F81-OS1.1,OS1.2]

                                                                                                    3.1.1.2. Radioactive Materials                                    (3)         [F01,F02,F03,F81-OS1.1,OS1.2]

                                                                                                    (1)          [F01,F02,F03,F81-OS1.1,OS1.2]                        3.1.2.2. Ambient Temperature

                                                                                                    3.1.1.3. Explosives                                               (1)         [F51-OS1.1]

                                                                                                    (1)          [F01,F02,F03,F81-OS1.1,OS1.2]                        (2)         [F51-OS1.1]
                                                                                                                                                                      (3)         [F51-OS1.1]


                                                                                                    3-24 Division B                                                                                  National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                              3.4.1.1.

                                                                                                                        Table 3.4.1.1. (Continued)                                      Table 3.4.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)   Provision              Functional Statements and Objectives (1)
                                                                                                     3.1.2.3. Packages and Containers                               (3)         (a) to (c) [F01-OS1.1]
                                                                                                     (1)         [F20,F43,F80,F81-OH5]                                          (a) to (c) [F01-OP1.1]
                                                                                                                 [F20,F43,F80,F81-OS3.4]                                        (d) [F01,F02-OP1.1]
                                                                                                                 [F20,F43,F80,F81,F01-OS1.1]                                    (d) [F01,F02-OS1.1]
                                                                                                     (2)         [F20,F43,F80,F81-OH5]                              (4)         [F03,F12-OS1.2]
                                                                                                                 [F20,F43,F80,F81-OS3.4]                                        [F02,F12-OP1.2]




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                                                                                                                 [F20,F43,F80,F81,F01-OS1.1]                        3.1.3.3. Battery-Powered Industrial Trucks
                                                                                                     3.1.2.4. Storage Arrangement and Conditions                    (1)         (a) [F03-OS1.2]
                                                                                                     (1)         [F01,F43-OS1.1]                                                (a) [F03-OP1.2]
                                                                                                                 [F43-OS3.4]                                                    (b) to (d) [F01-OS1.1]
                                                                                                                 [F10,F30-OS3.7]                                                (b) to (d) [F01-OP1.1]
                                                                                                                 [F01,F43-OP1.1]                                    (2)         [F02,F12-OP1.2]
                                                                                                                 [F43-OH5]                                                      [F02,F12-OS1.2]
                                                                                                     (2)         (b) [F01,F43-OS1.1]                                3.1.3.4. Training
                                                                                                                 (a) [F43-OS3.4]                                    (1)         [F12-OP1.1]
                                                                                                                 (b) [F01,F43-OP1.1]                                            [F12-OS1.1]
                                                                                                                 (a) [F43-OH5]                                                  [F12-OP1.2]
                                                                                                     3.1.2.5. Compressed Gases                                                  [F12-OS1.2]
                                                                                                     (1)         [F81-OS3.4]                                        3.2.1.1. Application
                                                                                                                 [F81-OS1.1]                                        (2)         [F02-OP1.2]
                                                                                                     (2)         [F81-OS3.4]                                                    [F02-OS1.2]
                                                                                                                 [F81-OS1.1]                                        3.2.2.2. Access Aisles
                                                                                                     (3)         [F81,F22-OS3.4]                                    (1)         [F12-OP1.2]
                                                                                                                 [F22,F81-OS1.1]                                                [F12-OS1.2]
                                                                                                     (4)         [F05-OS1.5]                                        (2)         [F12-OP1.2]
                                                                                                     3.1.2.6. Reactive Materials                                                [F12-OS1.2]
                                                                                                     (2)         [F22,F51,F81-OS1.1]                                (3)         [F12-OP1.2]
                                                                                                     (3)         [F01,F52-OS1.1]                                                [F12-OS1.2]
                                                                                                     (4)         [F01-OS1.1]                                        (4)         [F12-OP1.2]
                                                                                                     3.1.3.1. Industrial Trucks                                                 [F12-OS1.2]
                                                                                                     (1)         [F01,F81,F82-OS1.1]                                (5)         [F12-OP1.2]
                                                                                                     (2)         [F01,F81-OS1.1]                                                [F12-OS1.2] [F06-OS1.5]
                                                                                                     (3)         [F01,F81-OS1.1]                                    (6)         [F06,F02-OP1.2]
                                                                                                     3.1.3.2. Fuel-Fired Industrial Trucks                                      [F06-OS1.5] [F02-OS1.2]
                                                                                                     (1)         (a) [F03-OS1.2]                                    (7)         [F12-OP1.2]
                                                                                                                 (a) [F03-OP1.2]                                                [F12-OS1.2]
                                                                                                                 (b) [F03-OS1.2]                                    (8)         [F12-OP1.2]
                                                                                                                 (b) [F03-OP1.2]                                                [F12-OS1.2]
                                                                                                                 (c) [F01,F02-OS1.1]                                3.2.2.3. Clearances
                                                                                                                 (c) [F01,F02-OP1.1]                                (1)         [F21-OP1.3,OP1.2]
                                                                                                     (2)         [F01,F44-OS1.1]                                                [F21-OS1.3,OS1.2]
                                                                                                                 [F01,F44-OP1.1]                                    (2)         [F12-OP1.2]
                                                                                                                                                                                [F12-OS1.2]



                                                                                                    National Fire Code of Canada 2020                                                                                     Division B 3-25
                                                                                                    3.4.1.1.                                                                                                               Division B

                                                                                                                       Table 3.4.1.1. (Continued)                                             Table 3.4.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)           Provision           Functional Statements and Objectives (1)
                                                                                                    (3)          [F04-OP1.3,OP1.2]                                          3.2.5.5. Sprinkler Systems
                                                                                                                 [F04-OS1.3,OS1.2]                                          (1)         [F02,F81-OP1.2]
                                                                                                    (4)          [F02-OP1.2]                                                            [F02,F81-OS1.2]
                                                                                                                 [F02-OS1.2]                                                (2)         [F02,F03-OP1.2]
                                                                                                    (5)          [F01-OS1.1]                                                            [F02,F03-OS1.2]
                                                                                                    3.2.2.4. Combustible Pallets                                            3.2.5.6. Type A Dedicated Areas




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                                                                                                    (2)          [F02-OP1.2]                                                (1)         [F20-OS1.2]
                                                                                                                 [F02-OS1.2]                                                            [F20-OP1.2]
                                                                                                    (3)          [F02-OS1.2]                                                (2)         [F20-OS1.2]
                                                                                                                 [F02-OP1.2]                                                3.2.5.7. Type B Dedicated Areas
                                                                                                    3.2.2.5. Fire Safety Plan                                               (1)         [F03,F20-OP1.2]
                                                                                                    (2)          [F81,F02,F12-OP1.2]                                                    [F03,F20-OS1.2]
                                                                                                                 [F81-OS1.1] [F81,F02,F12-OS1.2]                            3.2.5.8. Storage Height
                                                                                                    (3)          [F81,F02,F12-OP1.2]                                        (1)         [F04-OP1.2]
                                                                                                                 [F81-OS1.1] [F81,F02,F12-OS1.2]                                        [F20,F81-OS1.1] [F04-OS1.2,OS1.5]
                                                                                                    3.2.2.6. Smoking                                                        (2)         (b) [F02,F03,F20,F04-OS1.2] [F20-OS1.1]
                                                                                                    (1)          [F01-OS1.1]                                                            (b) [F02,F03,F04,F20-OP1.2]
                                                                                                    3.2.2.7. Storage Arrangements                                                       (a) [F02,F03,F20-OP1.2]
                                                                                                    (1)          [F20-OS1.1,OS1.2] [F04-OS1.2,OS1.5]                                    (a) [F02,F03,F20-OS1.2]
                                                                                                    3.2.3.2. Individual Storage Areas                                       3.2.5.9. Aisles
                                                                                                    (1)          [F02-OS1.2]                                                (1)         [F03-OP1.2]
                                                                                                                 [F02-OP1.2]                                                            [F03-OS1.2] [F06-OS1.5]
                                                                                                                 [F04-OP1.2]                                                3.2.6.3. Loose Combustible Fibres
                                                                                                                 [F20-OS1.1] [F04-OS1.2,OS1.5]                              (1)         [F03,F02-OS1.2]
                                                                                                    (2)          [F04,F02-OP1.2]                                                        [F03,F02-OP1.2]
                                                                                                                 [F20-OS1.1] [F04,F02-OS1.2]                                (2)         [F03,F02-OP1.2]
                                                                                                    3.2.3.3. Sprinkler Systems                                                          [F03,F02-OS1.2]
                                                                                                    (1)          [F02,F81-OP1.2]                                            (3)         [F03,F02-OP1.2]
                                                                                                                 [F02,F81-OS1.2]                                                        [F03,F02-OS1.2]
                                                                                                    (2)          [F02,F81-OP1.2]                                            (4)         [F03,F02-OS1.2]
                                                                                                                 [F02,F81-OS1.2]                                                        [F03,F02-OP1.2]
                                                                                                    3.2.4.3. Sprinkler Protection                                           (5)         [F03,F02-OS1.2]
                                                                                                    (1)          [F02,F81-OP1.2]                                                        [F03,F02-OP1.2]
                                                                                                                 [F02,F81-OS1.2]                                            3.2.6.4. Baled Combustible Fibres
                                                                                                    3.2.4.4. Portable Extinguishers                                         (1)         (b) [F04-OS1.2,OS1.5]
                                                                                                    (1)          [F02,F12,F81-OP1.2]                                                    (a) [F02-OP1.2]
                                                                                                                 [F02,F12,F81-OS1.2]                                                    (d) [F21-OS1.3,OS1.2]
                                                                                                    3.2.5.4. Level 2 and 3 Aerosols                                                     (b) [F04-OP1.2]
                                                                                                    (1)          [F02,F03-OP1.2] Applies to conformance to Table 3.2.5.4.               (c) [F21-OS1.5]
                                                                                                                 [F02,F03-OS1.2] Applies to conformance to Table 3.2.5.4.               (d) [F21-OP1.3,OP1.2]
                                                                                                    (2)          [F02,F03-OP1.2]                                                        (a) [F02-OS1.2]
                                                                                                                 [F02,F03-OS1.2]                                            (2)         [F02-OP1.2]
                                                                                                                                                                                        [F02-OS1.2]



                                                                                                    3-26 Division B                                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                      3.4.1.1.

                                                                                                                       Table 3.4.1.1. (Continued)                                                 Table 3.4.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)            Provision             Functional Statements and Objectives (1)
                                                                                                     (3)         (b) [F04-OS1.5,OS1.2]                                       (9)         [F81,F82-OS3.4]
                                                                                                                 (b) [F04-OP1.2]                                                         [F81,F82-OS1.1] [F10-OS1.5]
                                                                                                                 (a) [F02-OP1.2]                                             3.2.7.6. Separation from Other Dangerous Goods
                                                                                                                 (a) [F02-OS1.2]                                             (1)         [F43-OS3.4]
                                                                                                     (4)         (b) [F04-OS1.5,OS1.2]                                                   [F01-OS1.1]
                                                                                                                 (b) [F04-OP1.2]                                             (3)         [F43-OS3.4]




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                 (a) [F02-OP1.2]                                                         [F01-OS1.1]
                                                                                                                 (a) [F02-OS1.2]                                             (4)         [F02-OS1.1,OS3.4]
                                                                                                     (5)         [F04-OP1.2]                                                 3.2.7.7. Corrosion Protection
                                                                                                                 [F04-OS1.5,OS1.2]                                           (1)         [F80-OS3.4]
                                                                                                     3.2.6.5. Heating Equipment                                                          [F80-OH5]
                                                                                                     (1)         [F01-OS1.1]                                                             [F80-OS1.1]
                                                                                                     (2)         [F01-OS1.1]                                                 3.2.7.8. Flooring Materials
                                                                                                     3.2.7.2. Ignition Sources                                               (1)         (b) [F01-OS1.1]
                                                                                                     (1)         [F01-OS1.1]                                                 (2)         [F01-OS1.1]
                                                                                                     (2)         [F01-OS1.1] Applies to portion of Code text: “Smoking       3.2.7.9. Fire Suppression Systems
                                                                                                                 shall not be permitted within a fire compartment used for
                                                                                                                                                                             (1)         [F02-OP1.2]
                                                                                                                 the storage of dangerous goods …”
                                                                                                                                                                                         [F02-OS1.2]
                                                                                                     (3)         [F01-OS1.1]
                                                                                                                                                                             (2)         [F02,F03-OP1.2] [F01-OP1.1]
                                                                                                     3.2.7.3. Ambient Conditions
                                                                                                                                                                                         [F02,F03-OS1.2] [F01-OS1.1]
                                                                                                     (1)         (b) [F01-OS1.1]
                                                                                                                                                                             3.2.7.10. Smoke Venting
                                                                                                                 (b) [F40-OS3.4]
                                                                                                                                                                             (1)         [F12,F02-OP1.2]
                                                                                                                 (a) [F51,F52-OS1.1]
                                                                                                                                                                                         [F12,F02-OS1.2,OS1.5]
                                                                                                                 (a) [F51,F52-OS3.4]
                                                                                                     3.2.7.4. Housekeeping                                                   3.2.7.11. Spill Control
                                                                                                                                                                             (2)         (a) [F43-OS3.4]
                                                                                                     (1)         [F81,F01-OS1.1]
                                                                                                     (2)                                                                                 (a) [F01-OS1.1]
                                                                                                                 [F43,F81-OS3.4]
                                                                                                                                                                             3.2.7.12. Fire Department Access
                                                                                                                 [F43-OH5]
                                                                                                                 [F43,F81-OS1.1]                                             (2)         [F12-OP1.2]

                                                                                                     3.2.7.5. Storage Arrangements                                                       [F12-OS1.2]
                                                                                                                                                                             (3)         [F12-OP1.2]
                                                                                                     (1)         (b) [F20-OS1.1,OS1.2] [F04-OS1.2,OS1.5]
                                                                                                                                                                                         [F12-OS1.2]
                                                                                                                 (b) [F20-OS3.4]
                                                                                                                                                                             3.2.7.13. Labels
                                                                                                                 (a) [F20-OS3.4]
                                                                                                                 (a) [F20-OS1.1,OS1.2] [F04-OS1.2,OS1.5]                     (1)         [F12,F81-OS3.4]

                                                                                                                 (c) [F02-OS1.1]                                                         [F12-OS1.1,OS1.2] [F81-OS1.1]

                                                                                                                 (c) [F02-OP1.2]                                             3.2.7.14. Placards

                                                                                                     (2)         [F20-OS1.1,OS1.2] [F04-OS1.2,OS1.5] [F02-OS1.2]             (1)         [F12,F81-OS3.4]

                                                                                                     (3)         [F02-OP1.2]                                                             [F12-OS1.1,OS1.2] [F81-OS1.1]

                                                                                                                 [F02-OS1.2]                                                 (2)         [F12-OS3.4]

                                                                                                     (4)         [F81,F43,F12-OS3.4]                                                     [F12-OS1.2]

                                                                                                                 [F81,F12-OH5]                                               (3)         [F12-OS3.4]

                                                                                                                 [F81,F01,F12-OS1.1]                                                     [F12-OS1.2]

                                                                                                     (8)         [F01-OP1.2]                                                 (4)         [F12-OS3.4]

                                                                                                                 [F01-OS1.2]                                                             [F12-OS1.2]



                                                                                                    National Fire Code of Canada 2020                                                                                             Division B 3-27
                                                                                                    3.4.1.1.                                                                                                        Division B

                                                                                                                         Table 3.4.1.1. (Continued)                                     Table 3.4.1.1. (Continued)

                                                                                                     Provision            Functional Statements and Objectives (1)   Provision           Functional Statements and Objectives (1)
                                                                                                    3.2.7.15. Training                                               3.3.2.3. Individual Storage Areas and Clearances
                                                                                                    (1)          (c) [F12-OS1.1,OS1.2] [F81-OS1.1]                   (2)         [F03-OP3.1]
                                                                                                                 (b) [F12-OS1.1,OS1.2] [F81-OS1.1]                   3.3.2.4. Storage beneath Power Lines
                                                                                                                 (b) [F12,F81-OS3.4]                                 (1)         [F06-OS1.1]
                                                                                                                 (c) [F12-OS3.4]                                                 [F01,F06-OP3.1]
                                                                                                    (2)          [F81-OS3.4]                                         3.3.2.5. Fire Department Access




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                                                                                                                 [F81-OS1.1]                                         (1)         [F12-OP3.1]
                                                                                                    (3)          [F81,F12-OS3.4]                                     (2)         [F12-OP3.1]
                                                                                                                 [F81,F12-OS1.1]                                     3.3.2.6. Fencing
                                                                                                    3.2.7.16. Unauthorized Access                                    (1)         [F34-OS3.4]
                                                                                                    (1)          [F34-OH5]                                                       [F34-OH5]
                                                                                                                 [F34-OS3.4]                                                     [F34-OP3.1]
                                                                                                                 [F34-OS1.1]                                         (2)         [F12-OP3.1]
                                                                                                    3.2.7.17. Separation from Combustible Products                   3.3.2.7. Maintenance
                                                                                                    (1)          [F03-OS1.2] [F01-OS1.1]                             (1)         (b) [F12-OP3.1]
                                                                                                    3.2.7.18. Storage of Oxidizers in Mercantile Occupancies         (2)         (b) [F12-OP3.1]
                                                                                                    (2)          [F03-OS1.2] [F01-OS1.1]                             3.3.2.8. Ignition Sources
                                                                                                    (3)          [F03-OS1.2] [F01-OS1.1]                             (1)         [F01-OP3.1]
                                                                                                    3.2.8.2. Flammable Gases                                         (2)         [F01-OP3.1]
                                                                                                    (1)          (d) [F02-OS1.3]                                     (3)         (b) [F03-OS1.2] Applies to portion of Code text: “…
                                                                                                                 (f) [F01-OS1.1]                                                 located not less than 15 m from a building …”

                                                                                                                 (b) [F12-OS1.2] [F01-OS1.1] [F02-OS1.3]                         [F01,F03-OP3.1]

                                                                                                                 (g) [F01,F02-OS1.1]                                 3.3.2.10. Portable Extinguishers

                                                                                                                 (b) [F02-OP1.3]                                     (2)         [F02-OP3.1]

                                                                                                    (2)          (a) [F01-OS1.1]                                     3.3.2.11. Site Preparation

                                                                                                                 (b) [F01-OS1.1] [F02-OS1.2]                         (1)         [F04-OS1.2]

                                                                                                    (3)          [F01,F02,F03,F81-OS1.1,OS1.2]                                   [F20-OS3.4]

                                                                                                    3.2.8.3. Indoor Storage of Anhydrous Ammonia and Toxic or                    [F04,F12-OP3.1]
                                                                                                    Oxidizing Gases                                                  3.3.2.12. Fuel Dispensing
                                                                                                    (1)          (d) [F44-OS1.2,OS1.5,OS1.1]                         (2)         [F03-OP3.1]
                                                                                                                 (b) [F12-OS1.2] [F01-OS1.1]                         3.3.2.14. Fire Separation
                                                                                                    (2)          [F01,F02-OS1.1,OS1.2,OS1.5]                         (1)         [F03-OP3.1]
                                                                                                    3.2.9.3. Industrial Trucks                                       3.3.2.15. Fire Protection
                                                                                                    (1)          [F01,F81-OS1.1]                                     (1)         [F02-OP3.1]
                                                                                                    (2)          [F01,F81-OS1.1]                                     3.3.3.2. Individual Storage Areas and Clearance
                                                                                                    (3)          [F03-OS1.2] [F01-OS1.1]                             (1)         [F04-OS1.5]
                                                                                                                 [F03-OP1.2] [F01-OP1.1]                                         [F02,F03-OP3.1] Applies to the maximum size (base
                                                                                                    (4)          [F01-OS1.1]                                                     area) and minimum clearances.
                                                                                                                                                                                 [F04-OP3.1] Applies to the maximum height.
                                                                                                    3.2.9.4. Portable Extinguishers
                                                                                                                                                                     (2)         [F03-OP3.1]
                                                                                                    (1)          [F02-OS1.2]
                                                                                                                                                                                 [F03-OS1.2]
                                                                                                    3.3.2.2. Height
                                                                                                                                                                     (3)         [F02,F03-OP3.1]
                                                                                                    (1)          [F04-OP3.1]
                                                                                                                                                                                 [F02,F03-OS1.2]
                                                                                                                 [F04-OS1.5]



                                                                                                    3-28 Division B                                                                                National Fire Code of Canada 2020
                                                                                                    Division B                                                          3.4.1.1.

                                                                                                                           Table 3.4.1.1. (Continued)

                                                                                                      Provision             Functional Statements and Objectives (1)
                                                                                                     (4)            [F02-OP3.1]
                                                                                                                    [F02-OS1.2]
                                                                                                     3.3.3.3. Rubber Tires
                                                                                                     (1)            [F06-OP3.1]
                                                                                                     3.3.4.2. Individual Storage Areas and Clearances
                                                                                                     (1)            [F02-OP3.1]




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                                                                                                                    [F02-OS1.2]
                                                                                                     (2)            [F03-OP3.1]
                                                                                                                    [F03-OS1.2]
                                                                                                     (3)            [F20-OS3.4]
                                                                                                                    [F20-OS1.1] [F04-OS1.2,OS1.5]
                                                                                                     3.3.4.3. Separation from Other Dangerous Goods
                                                                                                     (2)            [F43-OS3.4]
                                                                                                                    [F01-OS1.1]
                                                                                                     3.3.4.4. Separation from Combustible Products
                                                                                                     (1)            [F03,F01-OS1.1]
                                                                                                     3.3.4.7. Safety Precautions
                                                                                                     (1)            [F43-OS1.1]
                                                                                                     (2)            [F43,F81-OS3.4]
                                                                                                                    [F43-OH5]
                                                                                                                    [F43,F81-OS1.1]
                                                                                                     3.3.4.8. Intermodal Shipping Containers
                                                                                                     (1)            [F01-OS1.1]
                                                                                                                    [F43-OS3.4]
                                                                                                     3.3.5.2. Location
                                                                                                     (1)            (a) [F80,F81,F02-OS1.1]
                                                                                                                    (b) [F34-OS1.2]
                                                                                                                    (b) [F34-OP1.2]
                                                                                                     3.3.5.3. Clearances
                                                                                                     (1)            [F44-OS3.4]
                                                                                                                    [F44-OS1.1]
                                                                                                     (2)            [F44-OS3.4]
                                                                                                                    [F01,F44-OS1.1] [F03-OS1.2]

                                                                                                    Notes to Table 3.4.1.1.:
                                                                                                    (1)    See Parts 2 and 3 of Division A.




                                                                                                    National Fire Code of Canada 2020                                  Division B 3-29
                                    Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays




3-30 Division B




National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Notes to Part 3
                                                                                                    Indoor and Outdoor Storage




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                                                                                                    A-3.1.1.1.(1) Part 3 applies to the short- or long-term storage of products, whether raw or waste materials,
                                                                                                    goods in process, or finished goods.
                                                                                                    This Part does not deal with products or materials that are directly supplied to appliances, equipment or
                                                                                                    apparatus through piping, hose, ducts, etc. For example, the gas cylinders that are mounted on propane
                                                                                                    barbecues are not covered by Part 3: they are considered to be “in use” as opposed to “in storage” and are not
                                                                                                    intended to be regulated by the storage requirements stated in the NFC.

                                                                                                    A-3.1.1.4. Part 3 deals mainly with the storage of cylinders of dangerous goods classified as compressed
                                                                                                    gases. It is expected that gas installations that are not covered in the Code will conform to good engineering
                                                                                                    practice, such as that described in NFPA 55, “Compressed Gases and Cryogenic Fluids Code.”

                                                                                                    A-3.1.1.4.(1)(a) In the context of the exemption in Clause 3.1.1.4.(1)(a), a distributor is deemed to be
                                                                                                    a commercial enterprise regularly handling or storing more than 1 500 kg of dangerous goods classified as
                                                                                                    compressed gases for the purposes of resale. Such distributors are expected to follow the same good engineering
                                                                                                    practices as their suppliers. CGA P-1, “Standard for Safe Handling of Compressed Gases in Containers,”
                                                                                                    represents good engineering practice for the handling of dangerous goods classified as compressed gases.

                                                                                                    A-3.1.2.3.(2) The International Maritime Organization, the International Civil Aviation Organization, the
                                                                                                    United Nations and Transport Canada are examples of regulatory authorities that may establish standards for
                                                                                                    the design and construction of packages and containers for dangerous goods.

                                                                                                    A-3.1.2.5.(2)(a) Methods of preventing valve damage include the use of valve caps, storage in crates (for
                                                                                                    small cylinders) and the provision of steel rings or protective handles. Certain high pressure cylinders are
                                                                                                    required by other legislation to be equipped with valve caps.

                                                                                                    A-3.1.2.6. Reactive materials include various classes of unstable or reactive dangerous goods, such as
                                                                                                    flammable solids, pyrophoric materials, oxidizers, corrosives, water-reactive substances and organic peroxides.
                                                                                                    In general, it is unsafe to store highly reactive oxidizers close to liquids with low flash points, combustible
                                                                                                    products or chemically incompatible products. Quantities of oxidizers or other dangerously reactive materials
                                                                                                    should therefore be limited and the storage area should be constructed of noncombustible materials, should be
                                                                                                    kept cool and ventilated, and should not impede egress.
                                                                                                    In some cases, depending on the quantity and nature of the oxidizing agent, normal fire protection measures
                                                                                                    (e.g. sprinklers, fire hose and extinguishers) are ineffective due to the self-yielding of oxygen by the oxidizing
                                                                                                    agent.
                                                                                                    When containers of highly reactive oxidizers become damaged or are exposed to excessive heat, humidity or
                                                                                                    contamination (e.g. sawdust, petroleum products, or other chemicals), a very violent fire or explosion can result.
                                                                                                    The following oxidizing substances, among others, are known to supply oxygen: organic and inorganic
                                                                                                    peroxides; pool chemicals (e.g. calcium hypochlorite, sodium dichloroisocyanurate); oxides; permanganates;
                                                                                                    perrhenates; chlorates; perchlorates; persulfates; organic and inorganic nitrates; bromates; iodates; periodates;
                                                                                                    perselenates; chromates, dichromates; ozone; perborates.

                                                                                                    These Notes are included for explanatory purposes only and do not form part of the requirements. The number
                                                                                                    that introduces each Note corresponds to the applicable requirement in this Part.


                                                                                                    National Fire Code of Canada 2020                                                                             Division B 3-31
                                                                                                    A-3.2.1.1.(1)                                                                                    Division B

                                                                                                    When containers of dangerously reactive materials become damaged or are exposed to water or humidity, a
                                                                                                    flammable gas (such as hydrogen, ammonia or methane) or a toxic gas (such as hydrogen chloride, hydrogen
                                                                                                    bromide or phosphine) can be released.
                                                                                                    The following dangerously reactive materials, among others, are known to release a flammable gas in reaction
                                                                                                    to contact with water or humidity: alkali metals (e.g. sodium, potassium, cesium); reactive metals (e.g. zinc,
                                                                                                    aluminum, magnesium); metallic hydride (e.g. sodium borohydride, germanium tetrahydride, calcium
                                                                                                    hydride).
                                                                                                    The following dangerously reactive materials, among others, are known to release a toxic gas in reaction to
                                                                                                    contact with water or humidity: organic and inorganic chloride (e.g. phosphorus trichloride, phosphorus oxide
                                                                                                    trichloride, acetyl chloride); organic and inorganic bromide (e.g. phosphorus tribromide, aluminum tribromide,




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                                                                                                    acetyl bromide).

                                                                                                    A-3.2.1.1.(1) Section 3.2. applies to all parts of buildings, including warehousing or storage areas,
                                                                                                    manufacturing areas, shipping and receiving areas, and sales areas. It does not apply to the storage of
                                                                                                    unpackaged grain or coal. Additional requirements in Part 5 of this Code address the dust hazard associated
                                                                                                    with bulk grain or coal storage.

                                                                                                    A-3.2.1.1.(1)(a) NFPA 13, “Standard for the Installation of Sprinkler Systems,” gives an extensive
                                                                                                    description with numerous examples of commodities for classification purposes and should be consulted. The
                                                                                                    following is a brief overview of the NFPA 13 classification of commodities:
                                                                                                    A Class I commodity is defined as essentially noncombustible products in ordinary corrugated cartons or in
                                                                                                    ordinary paper wrappings, with or without combustible pallets.
                                                                                                    A Class II commodity is defined as Class I products in slatted wooden crates, solid wooden boxes, multiple
                                                                                                    thickness paperboard cartons or equivalent combustible packaging material, with or without combustible
                                                                                                    pallets.
                                                                                                    A Class III commodity is defined as wood, paper, natural fibre, cloth, or Group C plastics, with or without
                                                                                                    combustible pallets. Products may contain a limited amount of Group A or B plastics.
                                                                                                    A Class IV commodity is defined as Class I, II, or III products in corrugated cartons, containing an appreciable
                                                                                                    amount of Group A plastics or with Group A plastics packaging, with or without combustible pallets. Group B
                                                                                                    plastics and free-flowing Group A plastics are also included in this class.
                                                                                                    Group A plastics include, but are not limited to, ABS, acrylic, butyl rubber, fiberglass reinforced polyester,
                                                                                                    natural rubber (if expanded), nitrile rubber, polycarbonate, polyester elastomer, polyethylene, polypropylene,
                                                                                                    polystyrene, polyurethane, highly plasticized PVC, and SBR.
                                                                                                    Group B plastics include, but are not limited to, cellulosics, fluoroplastics, natural rubber (not expanded),
                                                                                                    nylon, and silicone rubber.
                                                                                                    Group C plastics include, but are not limited to, fluoroplastics, melamine, phenolic resins, rigid PVC, and
                                                                                                    urea formaldehyde.

                                                                                                    A-3.2.2.2. The purpose of Article 3.2.2.2. is to provide adequate access to the interior of the storage area for
                                                                                                    firefighting and overhaul operations. Means of egress must also be provided in accordance with Section 2.7..
                                                                                                    The use of dead-end aisles in storage areas should be minimized because of the potential hazard they
                                                                                                    create with respect to egress. Access aisles required in Sentence 3.2.2.2.(2) include aisles to fire department
                                                                                                    access panels, or to fire protection equipment such as sprinkler control valves, fire hose stations, portable
                                                                                                    extinguishers and manual stations.
                                                                                                    Sentences 3.2.2.2.(4) to (8) prescribe requirements for main access aisles in the storage area. More than one
                                                                                                    main access aisle may be required depending on the storage configuration and alternate arrangements to
                                                                                                    a single main access aisle are permitted in Sentence 3.2.2.2.(7). These requirements are in addition to the
                                                                                                    general requirement for 2.4 m aisles separating individual storage areas. The width of subsidiary aisles within
                                                                                                    individual storage areas is determined by material handling needs.
                                                                                                    Fire department access to a storage area can be by means of doors or access panels on exterior walls, or through
                                                                                                    doors from another fire compartment in the building, provided that fire compartment in turn has adequate fire
                                                                                                    department access. The access points should be as remote from each other as possible. Where practicable, the
                                                                                                    preferred arrangement is for main aisles to terminate at exterior doors on opposite sides of the building.


                                                                                                    3-32 Division B                                                                     National Fire Code of Canada 2020
                                                                                                    Division B                                                                                   A-3.2.5.2.(1)

                                                                                                    Where stored products are liable to expand with the absorption of water, there exists a significant danger of
                                                                                                    collapse of the products into the aisles. It does not matter whether the products are in racks or not, nor whether
                                                                                                    the water comes from hose streams or sprinklers. Examples of such products include certain paper products
                                                                                                    and baled rags. Numerous firefighters have been killed through being crushed by falling products, or through
                                                                                                    being trapped after their escape routes have become blocked by fallen products. Special consideration should be
                                                                                                    given in these cases to rack design, aisle widths and layout to prevent such hazards or to minimize their effect.

                                                                                                    A-3.2.2.3.(2) In buildings that are not sprinklered, a clear space is required above the storage to permit
                                                                                                    hose streams to be directed onto the top of storage.

                                                                                                    A-3.2.2.3.(5) Clearance between stored products and heating equipment must also be maintained in




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                                                                                                    conformance with Section 2.6., which references Part 6 of Division B of the NBC for installation requirements for
                                                                                                    heating systems. All stored combustible materials should be kept away from hot elements of heating equipment.

                                                                                                    A-3.2.2.4.(3) NFPA 13, “Standard for the Installation of Sprinkler Systems,” gives sprinkler system design
                                                                                                    criteria for areas where combustible pallets are stored, based on the height, area and type of pallets.

                                                                                                    A-3.2.3.2.(2) For self-contained, multi-tiered structural rack or shelf systems, the storage height should be
                                                                                                    determined as the height from the lowest floor level to the top of storage on the uppermost tier.

                                                                                                    A-3.2.3.3.(2) NFPA 13, “Standard for the Installation of Sprinkler Systems,” does not provide sufficient
                                                                                                    information on the design of sprinkler systems in buildings used for the storage of closed containers of distilled
                                                                                                    beverage alcohol.

                                                                                                    A-3.2.4.2.(1) The volume of tires in a storage area can be determined by measuring to the nearest 0.1 m
                                                                                                    the length, width and height of the piles or racks intended to contain the tires. In racks, the top shelf is
                                                                                                    assumed to be loaded to maximum possible height, while observing required clearances between structural
                                                                                                    elements and sprinklers.

                                                                                                    A-3.2.5.1.(1) Aerosol products that are displayed in mercantile occupancies represent a lower hazard and
                                                                                                    do not require specific storage limits or additional fire protection, provided they have been removed from their
                                                                                                    combustible cartons or cartons have been display-cut so that only the bottom and the lowest 50 mm of the side
                                                                                                    panels is retained. The storage of packaged aerosols in mercantile occupancies must nevertheless conform to
                                                                                                    Subsection 3.2.5.

                                                                                                    A-3.2.5.2.(1) This Code has adopted the aerosol classification system developed by the National Fire
                                                                                                    Protection Association in NFPA 30B, “Code for the Manufacture and Storage of Aerosol Products.”
                                                                                                    Examples of Level 1 aerosol products include shaving cream, spray starch, window cleaners, alkaline oven
                                                                                                    cleaners, rug shampoos, some air fresheners and some insecticides. These aerosols are less hazardous than
                                                                                                    Level 2 or Level 3 aerosols, and represent a storage hazard comparable to Class III commodities.
                                                                                                    Examples of Level 2 water-miscible flammable base aerosol products include most personal care products
                                                                                                    such as deodorants (except for oil-based antiperspirants), and hair sprays. They may also include antiseptics
                                                                                                    and anesthetics, some furniture polishes and windshield de-icers. Level 2 aerosols are less hazardous than
                                                                                                    Level 3 aerosols.
                                                                                                    Examples of Level 3 aerosol products include some automotive products such as engine and carburetor
                                                                                                    cleaners, undercoats and lubricants; some wood polishes, paints and lacquers; some insecticides; and oil
                                                                                                    based antiperspirants.
                                                                                                    In Canada, some aerosol products are required by HC SOR/2015-17, “Hazardous Products Regulations,”
                                                                                                    HC SOR/2001-269, “Consumer Chemicals and Containers Regulations,” and certain other legislation to
                                                                                                    bear flammability hazard symbols. The nature of the symbol on the can is determined on the basis of a
                                                                                                    flame projection test, which measures the susceptibility of the aerosol spray to ignite; this is most important
                                                                                                    for protecting consumers who, for example, might be smoking while using an aerosol product. A direct
                                                                                                    comparison between the flammability hazard symbols used in Canadian regulations and the NFPA Level 1,
                                                                                                    2 or 3 classification system used in the NFC is not reliable as the latter measures the overall contribution of
                                                                                                    flammable base product, combined with flammable gas propellant, to the rate of growth and severity of
                                                                                                    a fire involving a substantial number of aerosols.


                                                                                                    National Fire Code of Canada 2020                                                                   Division B 3-33
                                                                                                    A-Table 3.2.7.1.                                                                            Division B

                                                                                                    A-Table 3.2.7.1. Categories and Subcategories of Controlled Products (WHMIS). The letters
                                                                                                    and numbers in Column B of Table 3.2.7.1. refer to the categories and subcategories of controlled products
                                                                                                    under the “Workplace Hazardous Materials Information System (WHMIS)” as classified in Part 7 of HC
                                                                                                    SOR/2015-17, “Hazardous Products Regulations.”
                                                                                                      A: compressed gases
                                                                                                      B1: flammable gases
                                                                                                      B2: flammable liquids
                                                                                                      B3: combustible liquids
                                                                                                      B4: flammable solids
                                                                                                      B5: flammable aerosols
                                                                                                      B6: reactive flammable materials
                                                                                                      C: oxidizing materials




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                                                                                                      D: poisonous and infectious materials
                                                                                                            D1: materials causing immediate and serious toxic effects
                                                                                                            D1A: very toxic materials
                                                                                                            D1B: toxic materials
                                                                                                            D2: materials causing other toxic effects
                                                                                                            D2A: very toxic materials
                                                                                                            D2B: toxic materials
                                                                                                            D3: biohazardous infectious materials
                                                                                                      E: corrosive materials
                                                                                                      F: dangerously reactive materials
                                                                                                      A+C: controlled products of Class A combined with C
                                                                                                      A+D1, A+D2, A+E: controlled products of Class A combined with D1, or A combined with D2, or A
                                                                                                         combined with E

                                                                                                    A-3.2.7.1.(3) Small Quantity Exemptions for Dangerous Goods. Figure A-3.2.7.1.(3) illustrates
                                                                                                    the steps involved in determining which Class of dangerous goods has precedence for the purpose of applying
                                                                                                    the maximum exempt amount allowed to be stored using Table 3.2.7.1.




                                                                                                    3-34 Division B                                                                National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                  A-3.2.7.1.(3)(b)

                                                                                                                                                                        Dangerous
                                                                                                                                                                          Good




                                                                                                                                                   Has
                                                                                                                    Subsection 3.2.7.    No                      No      Has TDG
                                                                                                                                                  WHMIS
                                                                                                                     does not apply                                       Class?
                                                                                                                                                  Class?

                                                                                                                                                                              Yes




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                                                                                                                                                       Yes
                                                                                                                                                                                                Determine TDG Class having precedence
                                                                                                                                                                                        No           according to Section 2.8 of the
                                                                                                                                                                       Only one TDG
                                                                                                                                                                                                  Transportation of Dangerous Goods
                                                                                                                                                                          Class?
                                                                                                                                                                                                              Regulations

                                                                                                                                                                              Yes

                                                                                                                                                                  Determine the maximum
                                                                                                                                                               exempt amount according to the    No         More than one
                                                                                                                                                                TDG Class (Columns A and C                 TDG precedence
                                                                                                                                                                     of Table 3.2.7.1.)                        class?


                                                                                                                Determine WHMIS                                                                                     Yes
                                                                                                                  Class having            No    Only one
                                                                                                             precedence according to           WHMIS Class?                                     Determine the maximum exempt amount
                                                                                                               Table A-3.2.7.1.(3)(b)                                                         according to the worst-case scenario for the
                                                                                                                                                                                             primary or subsidiar y Class (Columns A and C
                                                                                                                                                       Yes                                                  of Table 3.2.7.1.)


                                                                                                                                           Determine the maximum
                                                                                                                                         exempt amount according to
                                                                                                                                        the WHMIS Class (Columns B
                                                                                                                                            and C of Table 3.2.7.1.)




                                                                                                                 More than one           No
                                                                                                                WHMIS precedence
                                                                                                                    class?


                                                                                                                          Yes

                                                                                                           Determine the maximum exempt
                                                                                                         amount according to the worst-case
                                                                                                         scenario for the Classes (Columns B
                                                                                                                and C of Table 3.2.7.1.)
                                                                                                                                                                                                                                   EG00783A


                                                                                                      Figure A-3.2.7.1.(3)
                                                                                                      Decision flow chart for small quantity exemptions applicable to dangerous goods


                                                                                                    A-3.2.7.1.(3)(b) Class of Controlled Product (WHMIS) Having Precedence. Where a dangerous
                                                                                                    good includes more than one class of controlled product, the class indicated in Table A-3.2.7.1.(3)(b) is
                                                                                                    considered as the primary class for segregation purposes only.




                                                                                                    National Fire Code of Canada 2020                                                                                          Division B 3-35
                                                                                                    A-3.2.7.3.(1)(b)                                                                                                                  Division B

                                                                                                                                                              Table A-3.2.7.1.(3)(b)
                                                                                                                                         Precedence of Classes of Controlled Products under the WHMIS (1)
                                                                                                                                                       Forming Part of Note A-3.2.7.1.(3)(b)

                                                                                                          WHMIS Class               B6                    C                   D1A                   D1B               D2A or D2B                   E
                                                                                                          Combinations                                             Class of Controlled Product Having Precedence
                                                                                                               B2                   B6                    B2                   B2                    B2                   B2                    B2
                                                                                                               B3                   B6                    B3                  D1A                   D1B                   B3                       E
                                                                                                               B4                   B6                    B4                  D1A                   D1B                   B4                       E
                                                                                                               B6                   —                     B6                  D1A                    B6                   B6                    B6




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                                                                                                               C                    B6                    —                   D1A                    C                     C                       C
                                                                                                              D1A                  D1A                   D1A                   —                    D1A                   D1A                   D1A
                                                                                                              D1B                   B6                    C                   D1A                    —                    D1B                   D1B
                                                                                                          D2A or D2B                B6                    C                   D1A                   D1B                    —                       E

                                                                                                    Notes to Table A-3.2.7.1.(3)(b):
                                                                                                    (1)   This Table is an adaptation of the Table entitled “Precedence of Classes, Class and Packing Group” presented in Section 2.8 of the “Transportation
                                                                                                          of Dangerous Goods Regulations (TDGR)” for the classes of controlled products under the “Workplace Hazardous Materials Information System
                                                                                                          (WHMIS).”


                                                                                                    Example 1– How to Use Table A-3.2.7.1.(3)(b)

                                                                                                    If, for example, a substance meets the criteria for inclusion in Classes B2, E and D1A, compare two classes at a time to determine the primary
                                                                                                          class. First, consider the combination of Classes B2 and E. Find Class B2 in the left-hand column of the Table and follow the row across to
                                                                                                          the column on the right that refers to E. The Class at the intersection of the row and the column is the class having precedence, which,
                                                                                                          in this case, is B2; Class E is therefore set aside.

                                                                                                                    WHMIS Class                     B6                 C               D1A                D1B          D2A or D2B              E
                                                                                                                         B2                         B6                B2                B2                B2                B2                B2


                                                                                                    Now consider the combination of Classes B2 and D1A. In this case, Class B2 also takes precedence; Class D1A is set aside, leaving Class B2
                                                                                                       as the primary class.

                                                                                                                    WHMIS Class                     B6                 C               D1A                D1B          D2A or D2B              E
                                                                                                                         B2                         B6                B2                B2                B2                B2                B2


                                                                                                    A-3.2.7.3.(1)(b) Part 4 of the NFC specifies ventilation rates to prevent the buildup of dangerous
                                                                                                    concentrations of flammable vapours in rooms used for storing flammable and combustible liquids. The same
                                                                                                    principles should apply to dangerous goods capable of releasing toxic gases, or where the accidental mixing of
                                                                                                    incompatible substances could generate flammable vapours or toxic gases. Where no guidance is given, the
                                                                                                    design of the ventilation system should conform to good engineering practice. Recommendations in the NFPA
                                                                                                    standards or in the ACGIH's “Industrial Ventilation: A Manual of Recommended Practice for Design” are
                                                                                                    considered examples of good engineering practice.

                                                                                                    A-3.2.7.5.(1)(c) Clause 3.2.7.5.(1)(c) requires compliance with Table 3.2.3.2. so as to ensure that the fuel
                                                                                                    load of stored dangerous goods, including packaging materials, does not exceed individual storage area size
                                                                                                    limits for sprinklered buildings and those that are not sprinklered.

                                                                                                    A-Table 3.2.7.6.

                                                                                                           Combinations of dangerous goods indicated by “DS”
                                                                                                           Where a combination of dangerous goods is indicated by “DS” in Table 3.2.7.6., refer to the Safety Data
                                                                                                           Sheet published by the products' manufacturer(s), or as needed, refer to a chemical database such as
                                                                                                           CAMEO Chemicals, which is an online library of more than 6000 data sheets containing response-related
                                                                                                           information and recommendations for hazardous materials that are commonly transported, used, and/or


                                                                                                    3-36 Division B                                                                                                  National Fire Code of Canada 2020
                                                                                                    Division B                                                                                     A-3.2.7.9.(1)

                                                                                                        stored. The CAMEO Chemicals database also contains the Chemical Reactivity Worksheet, which can be
                                                                                                        used to predict potential reactive hazards between chemicals of concern.

                                                                                                        Corrosive acids and bases
                                                                                                        The reaction between an acid (H+ releaser) and a base (OH- releaser) produces water (H2O) through an
                                                                                                        exothermic (i.e. heat-producing) reaction. The reaction between an acid and a base of high power and
                                                                                                        concentration can produce extreme heat. The power of an acid or a base can be determined based on its pH
                                                                                                        level, which is a measure of the acidity or basicity of a liquid material on a scale of 0 to 14. Liquid materials
                                                                                                        with a pH less than 7 are acidic and those with a pH greater than 7 are basic or alkaline. Pure water is
                                                                                                        neutral with a pH close to 7.0 at 25°C.




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                                                                                                        An acid that is classified as a corrosive is powerful and its pH value is generally lower than 2. A base that is
                                                                                                        classified as a corrosive is also powerful and its pH value is generally higher than 11.5. Consequently, the
                                                                                                        reaction between a corrosive base and a corrosive acid would be strong, likely producing a large amount of
                                                                                                        heat that could ignite surrounding combustible materials. When the corrosive is also a flammable liquid,
                                                                                                        the liquid itself could ignite. The dangerous goods classification of a corrosive does not indicate if it is a
                                                                                                        base or an acid; this information is available in the Safety Data Sheet for the substance.

                                                                                                    A-3.2.7.6.(2) For oxidizing or reactive materials, Sentences 3.2.7.5.(6) and (7) require a 2 h fire-resistance
                                                                                                    rating. For compressed gases, Subsection 3.2.8. requires a 1 h or 2 h fire-resistance rating depending on the type
                                                                                                    of gases. For aerosols, Subsection 3.2.5. applies following the same reasoning.

                                                                                                    A-3.2.7.6.(3) It is assumed that Safety Data Sheets will in many cases be provided as part of the
                                                                                                    documentation for TC SOR/2001-286, “Transportation of Dangerous Goods Regulations (TDGR),” or for
                                                                                                    the “Workplace Hazardous Materials Information System (WHMIS)” established in conformance with HC
                                                                                                    SOR/2015-17, “Hazardous Products Regulations.”
                                                                                                    The following are examples of basic principles that should apply to any storage situation involving dangerous
                                                                                                    goods:
                                                                                                      • Chemicals should not be stored using an alphabetical sequence system but should be grouped according
                                                                                                         to compatibility.
                                                                                                      • Organic materials should not be stored with either strong acids or oxidizers.
                                                                                                      • Alkalis should not be stored with strong acids or chlorinated hydrocarbons.
                                                                                                      • Strong acids should not be stored with oxidizers.
                                                                                                      • Sulphites, bisulphites and sulphides should not be stored with acids.
                                                                                                    Poisonous chemicals should not be stored together on the basis that they are poisons, but rather on the basis
                                                                                                    of compatibility. As with the storage of all chemicals, the primary consideration is what might happen in the
                                                                                                    event of a mishap causing them to be mixed. For instance, the following are all dangerous goods classified
                                                                                                    as toxic substances but will cause serious problems when mixed in the presence of water (such as water
                                                                                                    used for firefighting purposes):
                                                                                                       • sodium azide + dimethyl sulphate = explosion;
                                                                                                       • sodium cyanide + anhydrous chloral = highly toxic vapour cloud.
                                                                                                    Dangerous goods classified as toxic substances should not be stored in the vicinity of chemicals that are
                                                                                                    designated as B.P., B.P.C., U.S.P., F.C.C. and N.F. grades. Many of these chemicals find their way into cosmetics,
                                                                                                    pharmaceutical drugs and foodstuffs. A spill of a poisonous substance would not only cause contamination of
                                                                                                    the product itself, but also of the outside of the container and of the clean room in which it is processed.

                                                                                                    A-3.2.7.9.(1) So many types, quantities, and concentrations of dangerous goods could be present in a
                                                                                                    building that setting maximum quantities allowed in unprotected buildings is very difficult. The hazard
                                                                                                    presented by the dangerous goods is not necessarily a function of their inherent flammability, but rather a
                                                                                                    function of their potential for hampering firefighting. If the area involved in dangerous goods storage is large
                                                                                                    enough, the owner must provide some degree of built-in automatic fire suppression for the building. Therefore,
                                                                                                    the point at which installation of an active fire suppression system becomes mandatory is based on the total
                                                                                                    area involved in dangerous goods storage, regardless of the product stored.
                                                                                                    The active fire suppression system intended is a sprinkler system, installed throughout the building, not just in
                                                                                                    the area of dangerous goods storage. The objective is to control both a fire originating in a spot remote from
                                                                                                    the dangerous goods, so that it never threatens the dangerous goods, and a fire involving the dangerous
                                                                                                    goods themselves. Even if a fire originates in a dangerous good on which water should not be applied (stored
                                                                                                    pesticides for example), sprinklers may provide better control than alternative firefighting measures. A


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 3-37
                                                                                                    A-3.2.7.10.(1)                                                                                    Division B

                                                                                                    sprinkler system should control the fire, limit its spread, and minimize the number of containers that fail. The
                                                                                                    sprinkler alarm will notify responsible persons who can take corrective action while the fire is small. The
                                                                                                    amount of water applied to the pesticide by the sprinklers will be small in comparison to what will have to be
                                                                                                    applied by hose streams once the fire is established.
                                                                                                    Sentence 2.1.3.1.(1) refers to the NBC, which sets the basic criteria for sprinkler systems. These criteria may not
                                                                                                    be appropriate for specific dangerous goods. For example, water may not be the best extinguishing agent to use
                                                                                                    on a particular product. In such cases, special arrangements may be required, such as isolating that product in a
                                                                                                    room that is not sprinklered that is protected by a fixed fire suppression system conforming to Article 2.1.3.5.
                                                                                                    It is assumed that the fire suppression system will be designed by persons experienced in such design, using
                                                                                                    good engineering practice to establish design criteria, such as type of suppressant to use, and rate of application.




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                                                                                                    A-3.2.7.10.(1) Venting of smoke and other products of combustion can be achieved by opening roof vents,
                                                                                                    breaking skylights, removing panels or opening windows. Smoke and hot gases should be vented directly
                                                                                                    to the outdoors.

                                                                                                    A-3.2.7.12.(2) Access to at least 2 sides of a building used for the storage of dangerous goods is required
                                                                                                    so that, if necessary, firefighting operations can be set up on the upwind side of the building to minimize the
                                                                                                    adverse effects of toxic smoke.

                                                                                                    A-3.2.7.12.(3) Protective clothing worn by firefighters in a fire involving dangerous goods is bulkier than
                                                                                                    the usual firefighting turnout gear. Therefore, Sentence 3.2.7.12.(3) requires access openings into buildings used
                                                                                                    for the storage of dangerous goods to be wider than otherwise required by the NBC.

                                                                                                    A-3.2.7.13.(1) Firefighters need to identify the substances they may encounter in a building during a fire.
                                                                                                    Labelling of products to comply with the “Workplace Hazardous Materials Information System (WHMIS)” or
                                                                                                    other provincial, territorial or federal regulations is deemed to satisfy this requirement.

                                                                                                    A-3.2.7.14.(1) Some products are only classified under the “Workplace Hazardous Materials Information
                                                                                                    System (WHMIS)” and are not regulated by TC SOR/2001-286, “Transportation of Dangerous Goods
                                                                                                    Regulations (TDGR).” One or more placards should nonetheless be posted to identify the hazards associated
                                                                                                    with the product using its corresponding TDGR classification. For example, a TDGR placard for corrosives can
                                                                                                    be used to identify the hazard associated with a corrosive product that is only classified under the WHMIS.
                                                                                                    One or more placards are required at the door into a room used for the storage of dangerous goods, or into
                                                                                                    a laboratory where dangerous goods are used, to inform firefighters, emergency responders and occupants
                                                                                                    that dangerous goods are contained within. In larger storage areas containing a variety of dangerous goods in
                                                                                                    different individual storage areas, each individual storage area should have placards.
                                                                                                    It is understood that it is not reasonable to strictly enforce the use of placards conforming to the TDGR due to
                                                                                                    the limited space available on the exterior wall and/or door of laboratories in relation to the placard dimension
                                                                                                    requirement outlined in the TDGR. The intent of Sentence 3.2.7.14.(1)—as it applies to laboratories—is to ensure
                                                                                                    that the dangerous goods used within are either clearly identified by class or that their presence is signalled
                                                                                                    through the use of a “Danger” placard, either of which will help alert firefighters, emergency responders and
                                                                                                    occupants to the potential hazards associated with the presence of dangerous goods in the fire compartments
                                                                                                    containing laboratories.

                                                                                                    A-3.2.8.2.(1)(d) When a flammable mixture of air and vapour/gas/dust is ignited and causes an explosion,
                                                                                                    the exothermic reaction results in the rapid expansion of heated gases and the corresponding pressure waves
                                                                                                    travel through the mixture at sonic or supersonic velocities. The pressures developed by an explosion very
                                                                                                    rapidly reach levels that most buildings and equipment cannot withstand unless specifically designed to do so.
                                                                                                    Explosion venting consists of devices designed to open at a predetermined pressure to relieve internal pressure
                                                                                                    build-up inside a room or enclosure, hence limiting the structural and mechanical damage.
                                                                                                    The major parameters to be considered in designing an explosion venting system for a building are:
                                                                                                      • the physical and chemical properties of the flammable air mixture, such as the particle size or the
                                                                                                         droplet diameter, the moisture content, the minimum ignition temperature and explosive concentration,
                                                                                                         the burning velocity or explosibility classification, the maximum explosion pressure and the rate of
                                                                                                         pressure rise,
                                                                                                      • the concentration and dispersion of the flammable mixture in the room,
                                                                                                      • the turbulence and physical obstructions in the room,
                                                                                                      • the size and shape of the room, the type of construction and its ability to withstand internal pressures, and


                                                                                                    3-38 Division B                                                                      National Fire Code of Canada 2020
                                                                                                    Division B                                                                                        A-3.2.9.1.(1)

                                                                                                       • the type, size and location of relief panels, which should also be designed to reduce the possibility of
                                                                                                         injury to people in the immediate vicinity of the panels.

                                                                                                    A-3.2.8.2.(2) Table A-3.2.8.2.(2) lists the specific volume (m3/kg) of some common gases at normal
                                                                                                    temperature and pressure. This information is also available in the gas manufacturer's literature. Cylinder data
                                                                                                    for industrial gases can be found in FM Global Data Sheet 7-50, “Compressed Gases in Portable Cylinders.” All
                                                                                                    this information is needed to convert gas mass (kg) into gas expanded volume (m3), and vice versa.
                                                                                                    The volume, V, of gas in a compressed cylinder is a function of its pressure, P, in the cylinder. Applying the
                                                                                                    Ideal Gas Law—PV = nRT (where n is the number of moles, R is the gas constant, and T is the temperature) at
                                                                                                    constant temperature—provides the volume of gas in the cylinder at normal pressure and temperature. Since
                                                                                                    the temperature is kept constant, the following equation can then be derived:




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                                                                                                    where
                                                                                                         P1 = pressure of the compressed gas in the cylinder,
                                                                                                         V1 = internal volume of the cylinder (commonly referred to as water volume) based on the manufacturer's
                                                                                                               cylinder specification,
                                                                                                         P2 = atmospheric pressure (101.325 kPa or 14.7 psig), and
                                                                                                         V2 = expanded volume of gas in the cylinder at atmospheric pressure (V2 = P1V1/P2).
                                                                                                    Once V2 is calculated, the specific volumes for common gases listed in Table A-3.2.8.2.(2) or in the gas
                                                                                                    manufacturer's literature can be converted into units of mass.

                                                                                                                                                     Table A-3.2.8.2.(2)
                                                                                                                                            Specific Volume of Common Gases
                                                                                                                                             Forming Part of Note A-3.2.8.2.(2)

                                                                                                                                 Gas                                              Specific Volume, m3/kg
                                                                                                     Acetylene                                                                              0.9
                                                                                                     Ammonia, anhydrous                                                                    1.4
                                                                                                     Arsine                                                                                0.3
                                                                                                     Butane                                                                                0.4
                                                                                                     Carbon dioxide                                                                        0.5
                                                                                                     Chlorine                                                                              0.3
                                                                                                     Ethylene oxide                                                                        0.5
                                                                                                     Fluorine                                                                              0.6
                                                                                                     Hydrogen                                                                             12.0
                                                                                                     Methane                                                                               1.5
                                                                                                     Methyl acetylene                                                                      0.6
                                                                                                     Methyl chloride                                                                       0.5
                                                                                                     Nitrogen                                                                              0.9
                                                                                                     Oxygen                                                                                0.8
                                                                                                     Phosphine                                                                             0.7
                                                                                                     Propane                                                                               0.5
                                                                                                     Propylene                                                                             0.6


                                                                                                    A-3.2.9.1.(1) The chemical composition of ammonium nitrate is [NH4NO3], which makes it an inorganic
                                                                                                    nitrate. It comes in granular, prilled, flaked, crystalline or solid forms. Ammonium nitrate is manufactured
                                                                                                    in two densities used for different purposes and is treated with a wax or clay protective coating to prevent
                                                                                                    moisture absorption, which causes caking of the product.
                                                                                                    High-density ammonium nitrate is a fertilizer used in the agricultural sector. Subsection 3.2.9. applies only to
                                                                                                    ammonium nitrate mixtures designated as Class 5.1 oxidizing substances, which may be composed of as little


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 3-39
                                                                                                    A-3.2.9.2.(5)                                                                                     Division B

                                                                                                    as 45% ammonium nitrate. Sentence 3.2.9.1.(1) increases the maximum exempt amount stated in Table 3.2.7.1.
                                                                                                    from 250 kg to 1 000 kg.
                                                                                                    Low-density ammonium nitrate, when sensitized, is a blasting explosive used in the mining and construction
                                                                                                    sectors. When a carbonaceous or organic substance, such as fuel or diesel oil, nut hulls, or carbon black, is
                                                                                                    added and admixed with ammonium nitrate, the mixture may become a blasting explosive. This Code does not
                                                                                                    apply to ammonium-nitrate-based blasting explosives.
                                                                                                    Blasting explosives are classified as Class 1 explosives; their storage is regulated under NRCan R.S.C., 1985, c.
                                                                                                    E-17, “Explosives Act,” and its Regulations.

                                                                                                    A-3.2.9.2.(5) The minimum spatial separation stated in Subsection 3.2.3. of Division B of the NBC may be




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                                                                                                    increased by the authority having jurisdiction with respect to the nearness of assembly, institutional, residential
                                                                                                    and mercantile occupancies regarding the proximity of these exposures and congested commercial or industrial
                                                                                                    areas with due consideration to the exposure of toxic vapours from fires involving ammonium nitrate.

                                                                                                    A-3.2.9.3.(1) It is recommended that electric or LP-gas-powered industrial trucks be used rather than
                                                                                                    gasoline- or diesel-fuelled ones so as to reduce the potential for contamination of the ammonium nitrate.

                                                                                                    A-3.2.9.4.(1) Dry chemical extinguishers are not permitted to be used to fight fires involving ammonium
                                                                                                    nitrate, but may be used to extinguish fires involving industrial trucks, conveyors, etc.

                                                                                                    A-3.3.1.1.(1)(d) Hogged material can be described as mill waste consisting mainly of hogged bark but
                                                                                                    may include a mixture of bark, chips, dust, or other by-products from trees. This also includes material
                                                                                                    designated as hogged fuel.

                                                                                                    A-3.3.1.1.(1)(e) Factory-assembled combustible structures, such as mobile or modular homes and office
                                                                                                    trailers, that are transportable in one or more sections, are designated as manufactured buildings in this Section.

                                                                                                    A-3.3.1.1.(2)(c) An intermodal shipping container can be described as a standard sized reusable structure
                                                                                                    into which commodities are packed and designed to be used in more than one mode of transportation.

                                                                                                    A-3.3.1.1.(2)(g) Treated forest products are those that have been coated or impregnated with flammable or
                                                                                                    combustible liquids. Ranked piles are typically piles of logs evenly arranged by conveyor, crane or other means.

                                                                                                    A-3.3.2.6.(2) The width and location of gates in a fire department access route should take into account the
                                                                                                    connection with public thoroughfares, width of the roadway, radius of curves, and the type and size of fire
                                                                                                    department vehicles available in the municipality or area where the storage site is located. Padlocks that can be
                                                                                                    forced and replaced are preferred by fire departments for easy access to the storage site.

                                                                                                    A-3.3.3.2.(1) Where the adjoining property is land that may be built upon or used for storage, it is intended
                                                                                                    that the required clearance be maintained between the stored products and the property line. If the adjoining
                                                                                                    property does not present a fire exposure hazard, such as a street, right of way, watercourse, or park land, the
                                                                                                    required clearance could be beyond the property line. In all cases, care should be taken that the storage close to
                                                                                                    the property line does not defeat the purpose of other safety measures prescribed in this Code.




                                                                                                    3-40 Division B                                                                      National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Part 4
                                                                                                    Flammable and Combustible Liquids




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                                                                                                      4.1.          General
                                                                                                      4.1.1.        Scope ................................................ 4-1
                                                                                                      4.1.2.        Classification .................................... 4-1
                                                                                                      4.1.3.        Flash Point ........................................ 4-3
                                                                                                      4.1.4.        Electrical Installations ..................... 4-3
                                                                                                      4.1.5.        Fire Prevention and Protection ....... 4-3
                                                                                                      4.1.6.        Spill Control and Drainage
                                                                                                                    Systems ............................................. 4-4
                                                                                                      4.1.7.        Ventilation ......................................... 4-5
                                                                                                      4.1.8.        Handling of Flammable and
                                                                                                                    Combustible Liquids ........................ 4-7

                                                                                                      4.2.          Container Storage and
                                                                                                                    Handling
                                                                                                      4.2.1.        Scope ................................................ 4-8
                                                                                                      4.2.2.        General .............................................. 4-8
                                                                                                      4.2.3.        Containers and Portable Tanks ....... 4-9
                                                                                                      4.2.4.        Assembly and Residential
                                                                                                                    Occupancies ..................................... 4-9
                                                                                                      4.2.5.        Mercantile Occupancies ................ 4-10
                                                                                                      4.2.6.        Business and Personal
                                                                                                                    Services, Educational, Care,
                                                                                                                    Home-Type Care, Treatment and
                                                                                                                    Detention Occupancies ................. 4-11
                                                                                                      4.2.7.        Industrial Occupancies .................. 4-12
                                                                                                      4.2.8.        Incidental Use ................................. 4-15
                                                                                                      4.2.9.        Rooms for Container Storage
                                                                                                                    and Dispensing .............................. 4-16
                                                                                                      4.2.10.       Cabinets for Container Storage .... 4-17
                                                                                                      4.2.11.       Outdoor Container Storage ........... 4-18
                                                                                                      4.2.12.       Self-Service Storage Buildings ..... 4-19

                                                                                                      4.3.          Tank Storage
                                                                                                      4.3.1.        Design, Construction and Use
                                                                                                                    of Storage Tanks ............................ 4-19
                                                                                                      4.3.2.        Installation of Outside
                                                                                                                    Aboveground Storage Tanks ......... 4-21
                                                                                                      4.3.3.        Supports, Foundations and
                                                                                                                    Anchorage for Aboveground
                                                                                                                    Storage Tanks ................................. 4-23
                                                                                                      4.3.4.        Normal and Emergency Venting
                                                                                                                    for Aboveground Storage Tanks ... 4-24
                                                                                                      4.3.5.        Vent Piping for Aboveground
                                                                                                                    Storage Tanks ................................. 4-24
                                                                                                      4.3.6.        Openings Other than Vents in
                                                                                                                    Aboveground Storage Tanks ......... 4-24
                                                                                                      4.3.7.        Secondary Containment for
                                                                                                                    Aboveground Storage Tanks ......... 4-25


                                                                                                    National Fire Code of Canada 2020
                                                                                                                                                                                        Division B

                                                                                                    4.3.8.    Installation of Underground
                                                                                                              Storage Tanks ................................. 4-27
                                                                                                    4.3.9.    Sumps ............................................. 4-29
                                                                                                    4.3.10.   Corrosion Protection of
                                                                                                              Underground Steel Storage
                                                                                                              Tanks ............................................... 4-29
                                                                                                    4.3.11.   Vents for Underground Storage
                                                                                                              Tanks ............................................... 4-29
                                                                                                    4.3.12.   Openings Other than Vents in
                                                                                                              Underground Storage Tanks ......... 4-30
                                                                                                    4.3.13.   Installation of Storage Tanks
                                                                                                              inside Buildings ............................. 4-31




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                                                                                                    4.3.14.   Rooms for Storage Tanks .............. 4-34
                                                                                                    4.3.15.   Openings Other than Vents in
                                                                                                              Storage Tanks inside Buildings .... 4-34
                                                                                                    4.3.16.   Out of Service ................................. 4-34

                                                                                                    4.4.      Leak Detection of
                                                                                                              Storage Tanks and
                                                                                                              Piping Systems
                                                                                                    4.4.1.    General ............................................ 4-35
                                                                                                    4.4.2.    Leak Detection Testing and
                                                                                                              Monitoring Methods ....................... 4-38
                                                                                                    4.4.3.    Leak Detection Testing of
                                                                                                              Storage Tanks, Piping Systems
                                                                                                              and Sumps ...................................... 4-40
                                                                                                    4.4.4.    Leak Detection Monitoring
                                                                                                              of Storage Tanks and Piping
                                                                                                              Systems ........................................... 4-42

                                                                                                    4.5.      Piping and Transfer
                                                                                                              Systems
                                                                                                    4.5.1.    Scope .............................................. 4-42
                                                                                                    4.5.2.    Materials for Piping, Valves and
                                                                                                              Fittings ............................................ 4-42
                                                                                                    4.5.3.    Corrosion Protection of Piping
                                                                                                              Systems ........................................... 4-43
                                                                                                    4.5.4.    Identification of Piping Systems ... 4-43
                                                                                                    4.5.5.    Joints in Piping Systems ............... 4-44
                                                                                                    4.5.6.    Location and Arrangement of
                                                                                                              Piping .............................................. 4-44
                                                                                                    4.5.7.    Valves in Piping Systems .............. 4-47
                                                                                                    4.5.8.    Heating of Piping Systems ............ 4-48
                                                                                                    4.5.9.    Methods of Transfer in Piping
                                                                                                              Systems ........................................... 4-49
                                                                                                    4.5.10.   Operating Procedures for
                                                                                                              Piping Systems ............................... 4-50

                                                                                                    4.6.      Fuel-Dispensing Stations
                                                                                                    4.6.1.    Scope .............................................. 4-51
                                                                                                    4.6.2.    Storage and Handling .................... 4-51
                                                                                                    4.6.3.    Dispensing Systems ...................... 4-52
                                                                                                    4.6.4.    Shut-off Devices ............................. 4-53
                                                                                                    4.6.5.    Delivery Hose and Nozzles ............ 4-54
                                                                                                    4.6.6.    Remote Pumping Systems ............ 4-54
                                                                                                    4.6.7.    Spill Control .................................... 4-55
                                                                                                    4.6.8.    Supervision and Dispensing
                                                                                                              Procedures ...................................... 4-55
                                                                                                    4.6.9.    Fire Prevention and Protection ..... 4-58

                                                                                                    4.7.      Bulk Plants
                                                                                                    4.7.1.    Scope .............................................. 4-58
                                                                                                    4.7.2.    Storage ............................................ 4-58


                                                                                                                                                                           National Fire Code of Canada 2020
                                                                                                    Division B

                                                                                                      4.7.3.        Dispensing ...................................... 4-59
                                                                                                      4.7.4.        Loading and Unloading
                                                                                                                    Facilities .......................................... 4-59
                                                                                                      4.7.5.        Fire Protection ................................ 4-60
                                                                                                      4.7.6.        Spill Control .................................... 4-60

                                                                                                      4.8.          Piers and Wharves
                                                                                                      4.8.1.        Scope .............................................. 4-60
                                                                                                      4.8.2.        General ............................................ 4-61
                                                                                                      4.8.3.        Storage Tanks ................................. 4-61
                                                                                                      4.8.4.        Piping, Valves and Fittings ............ 4-61
                                                                                                      4.8.5.        Bonding and Grounding ................ 4-62




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                                                                                                      4.8.6.        Fire Protection ................................ 4-62
                                                                                                      4.8.7.        Bulk Transfer Stations ................... 4-63
                                                                                                      4.8.8.        Cargo Hose ..................................... 4-63
                                                                                                      4.8.9.        Cargo Pumps .................................. 4-63
                                                                                                      4.8.10.       Pump Houses ................................. 4-64
                                                                                                      4.8.11.       Transfer Operations ....................... 4-64

                                                                                                      4.9.          Process Plants
                                                                                                      4.9.1.        Scope .............................................. 4-65
                                                                                                      4.9.2.        Outdoor Processing Equipment ... 4-65
                                                                                                      4.9.3.        Processing Buildings .................... 4-65
                                                                                                      4.9.4.        Fire Prevention and Protection ..... 4-66

                                                                                                      4.10.         Distilleries
                                                                                                      4.10.1.       Scope .............................................. 4-66
                                                                                                      4.10.2.       General ............................................ 4-67
                                                                                                      4.10.3.       Storage Tanks and Containers ...... 4-67
                                                                                                      4.10.4.       Storage ............................................ 4-67
                                                                                                      4.10.5.       Piping and Pumping Systems ....... 4-67
                                                                                                      4.10.6.       Ventilation ....................................... 4-67
                                                                                                      4.10.7.       Spill Control .................................... 4-68
                                                                                                      4.10.8.       Fire Protection ................................ 4-68

                                                                                                      4.11.         Tank Vehicles
                                                                                                      4.11.1.       Scope .............................................. 4-68
                                                                                                      4.11.2.       General ............................................ 4-68
                                                                                                      4.11.3.       Loading, Unloading and
                                                                                                                    Dispensing from Tank Vehicles .... 4-69

                                                                                                      4.12.         Farms
                                                                                                      4.12.1.       Scope .............................................. 4-70

                                                                                                      4.13.         Objectives and
                                                                                                                    Functional Statements
                                                                                                      4.13.1.       Objectives and Functional
                                                                                                                    Statements ...................................... 4-70

                                                                                                                    Notes to Part 4 ................ 4-95




                                                                                                    National Fire Code of Canada 2020
                                    Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays




National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Part 4
                                                                                                    Flammable and Combustible Liquids




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                                                                                                    Section 4.1. General
                                                                                                    4.1.1.            Scope
                                                                                                    4.1.1.1.          Application
                                                                                                                         1) Except as provided in Sentences (2) and (3), this Part applies to the storage,
                                                                                                                      handling, use and processing of
                                                                                                                         a) flammable liquids and combustible liquids in buildings, structures and open
                                                                                                                             areas,
                                                                                                                         b) water-miscible liquid mixtures classified as flammable liquids or combustible
                                                                                                                             liquids in conformance with Article 4.1.2.2. in buildings, structures and open
                                                                                                                             areas, and
                                                                                                                          c) dangerous goods classified as flammable gases at fuel-dispensing stations.
                                                                                                                      (See Note A-4.1.1.1.(1).)
                                                                                                                         2) Areas in process plants, where conditions must be addressed by design and
                                                                                                                      operational details specific to the hazard, need not conform to this Part, where
                                                                                                                      alternative protection is provided in conformance with Article 1.2.1.1. of Division A.
                                                                                                                      (See Note A-4.1.1.1.(2).)
                                                                                                                         3) This Part shall not apply to
                                                                                                                         a) the transportation of flammable liquids or combustible liquids under TC
                                                                                                                            SOR/2001-286, “Transportation of Dangerous Goods Regulations (TDGR),”
                                                                                                                         b) appliances and their ancillary equipment within the scope of CSA
                                                                                                                            B139 Series, “Installation code for oil-burning equipment,” except for
                                                                                                                            aboveground storage tanks with an individual capacity exceeding 2 500 L
                                                                                                                            (see Note A-4.1.1.1.(3)(b)),
                                                                                                                         c) except as provided in Sentence (4), the storage of flammable liquids or
                                                                                                                            combustible liquids on farms for individual farm use, or
                                                                                                                         d) the storage of aerosol products covered under Subsection 3.2.5.
                                                                                                                         4) The storage of flammable liquids or combustible liquids on farms for individual
                                                                                                                      farm use shall be in conformance with Section 4.12.
                                                                                                                         5) In addition to the requirements in this Part, the storage, handling and use of
                                                                                                                      flammable liquids and combustible liquids in laboratories shall be in conformance with
                                                                                                                      Section 5.5.
                                                                                                                         6) Unless otherwise specified, this Section shall apply to all areas involved in the
                                                                                                                      storage, handling or use of flammable liquids and combustible liquids covered in this Part.

                                                                                                    4.1.2.            Classification
                                                                                                    4.1.2.1.          Classification
                                                                                                                      (See Note A-4.1.2.1.)
                                                                                                                          1) Except as provided in Article 4.1.2.2., for the purposes of this Part, flammable
                                                                                                                      liquids and combustible liquids shall be classified in conformance with Sentences (2)
                                                                                                                      and (3).


                                                                                                    National Fire Code of Canada 2020                                                                        Division B 4-1
                                                                                                    4.1.2.2.                                                                                          Division B

                                                                                                                        2) Flammable liquids shall be Class I liquids, and shall be subdivided into:
                                                                                                                        a) Class IA liquids, which shall include those having a flash point below 22.8°C
                                                                                                                           and a boiling point below 37.8°C,
                                                                                                                        b) Class IB liquids, which shall include those having a flash point below 22.8°C
                                                                                                                           and a boiling point at or above 37.8°C, and
                                                                                                                        c) Class IC liquids, which shall include those having a flash point at or above
                                                                                                                           22.8°C and below 37.8°C.

                                                                                                                        3) Combustible liquids shall be Class II or Class IIIA liquids, and shall be subdivided
                                                                                                                     into:
                                                                                                                         a) Class II liquids, which shall include those having a flash point at or above
                                                                                                                            37.8°C and below 60°C, and




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                                                                                                                         b) Class IIIA liquids, which shall include those having a flash point at or above
                                                                                                                            60°C and below 93.3°C (see Note A-4.1.2.1.(3)(b)).

                                                                                                    4.1.2.2.         Water-Miscible Liquid Mixtures
                                                                                                                     (See Note A-4.1.2.2.)

                                                                                                                        1) For the purposes of this Part, mixtures of methanol, ethanol, 2-propanol, acetone
                                                                                                                     or acetic acid and water shall be classified in conformance with Sentences (2) to (6).

                                                                                                                        2) A mixture of methanol and water shall be classified as
                                                                                                                        a) a Class IB liquid if the concentration of methanol is 90% or more by volume,
                                                                                                                        b) a Class IC liquid if the concentration of methanol is 30% or more but less
                                                                                                                           than 90% by volume, or
                                                                                                                        c) a Class II liquid if the concentration of methanol is 20% or more but less
                                                                                                                           than 30% by volume.

                                                                                                                        3) A mixture of ethanol and water shall be classified as
                                                                                                                        a) a Class IB liquid if the concentration of ethanol is 90% or more by volume,
                                                                                                                        b) a Class IC liquid if the concentration of ethanol is 30% or more but less
                                                                                                                           than 90% by volume, or
                                                                                                                        c) a Class II liquid if the concentration of ethanol is 20% or more but less than
                                                                                                                           30% by volume.

                                                                                                                        4) A mixture of 2-propanol and water shall be classified as a Class IC liquid if the
                                                                                                                     concentration of 2-propanol is 20% or more by volume.

                                                                                                                        5) A mixture of acetone and water shall be classified as a Class IB liquid if the
                                                                                                                     concentration of acetone is 5% or more by volume.

                                                                                                                        6) A mixture of acetic acid and water shall be classified as a Class IB liquid if the
                                                                                                                     concentration of acetic acid is 8% or more by volume.

                                                                                                    4.1.2.3.         Heated Liquids

                                                                                                                        1) When a liquid having a flash point at or above 37.8°C is being processed, stored,
                                                                                                                     handled or used at a temperature at or above its flash point, it shall be treated as a
                                                                                                                     Class I liquid.

                                                                                                    4.1.2.4.         Used Lubricating Oil
                                                                                                                     (See Note A-4.1.2.4.)

                                                                                                                        1) Except as provided in Sentence (2), used lubricating oil drained from motor
                                                                                                                     vehicles shall be classified as a Class IIIA liquid.

                                                                                                                        2) When Class I or II liquids are added to the used oils described in Sentence (1),
                                                                                                                     the resulting mixture shall be classified
                                                                                                                         a) through tests conforming to Subsection 4.1.3., or
                                                                                                                        b) in the absence of the tests referred to in Clause (a),
                                                                                                                                i) as a Class IC liquid if Class I liquids are added, or
                                                                                                                               ii) as a Class II liquid if only Class II liquids are added.


                                                                                                    4-2 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                               4.1.5.3.

                                                                                                    4.1.3.            Flash Point
                                                                                                    4.1.3.1.          Determination of Flash Point
                                                                                                                      (See Note A-4.1.3.1.)
                                                                                                                         1) Except as provided in Sentences (3) and (4), the flash point of liquids having a
                                                                                                                      kinematic viscosity less than 6 cSt at 37.8°C and a flash point below 93.3°C shall be
                                                                                                                      determined in conformance with ASTM D56, “Standard Test Method for Flash Point by
                                                                                                                      Tag Closed Cup Tester.”
                                                                                                                         2) Except as provided in Sentences (3) and (4), the flash point of liquids having a
                                                                                                                      kinematic viscosity of 6 cSt or more at 37.8°C or a flash point of 93.3°C or higher shall be




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                                                                                                                      determined in conformance with ASTM D93, “Standard Test Methods for Flash Point
                                                                                                                      by Pensky-Martens Closed Cup Tester.”
                                                                                                                          3) ASTM D3828, “Standard Test Methods for Flash Point by Small Scale Closed
                                                                                                                      Cup Tester,” is permitted to be used for testing aviation turbine fuels within the scope
                                                                                                                      of this procedure.
                                                                                                                         4) ASTM D3278, “Standard Test Methods for Flash Point of Liquids by Small
                                                                                                                      Scale Closed-Cup Apparatus,” is permitted to be used for paints, enamels, lacquers,
                                                                                                                      varnishes and related products and their components having flash points between 0°C
                                                                                                                      and 110°C, and having a kinematic viscosity less than 150 St at 25°C.

                                                                                                    4.1.4.            Electrical Installations
                                                                                                    4.1.4.1.          Hazardous Locations
                                                                                                                         1) Where flammable liquids or combustible liquids are present, electrical equipment
                                                                                                                      shall conform to CSA C22.1, “Canadian Electrical Code, Part I,” for hazardous
                                                                                                                      locations. (See Notes A-4.1.4.1.(1) and A-5.1.2.1.(1).)
                                                                                                                         2) Where refrigerators are used to store Class I liquids, they shall be designed
                                                                                                                      so that
                                                                                                                          a) electrical equipment located within the storage compartment, within the
                                                                                                                              outer shell, on the door and on the door frame of the refrigerator is in
                                                                                                                              conformance with CSA C22.1, “Canadian Electrical Code, Part I,” for Class I,
                                                                                                                              Zone 0 or 1 hazardous locations based on the frequency of occurrence and
                                                                                                                              duration of an explosive gaseous atmosphere, and
                                                                                                                          b) electrical equipment mounted on the outside surface of the refrigerator is
                                                                                                                                 i) in conformance with CSA C22.1, “Canadian Electrical Code,
                                                                                                                                    Part I,” for Class I, Zone 2 hazardous locations, or
                                                                                                                                ii) located above the top of the storage compartment.

                                                                                                    4.1.5.            Fire Prevention and Protection
                                                                                                    4.1.5.1.          Additional Fire Protection Equipment
                                                                                                                         1) Fire protection equipment shall be provided where there are special hazards
                                                                                                                      related to the use, handling, processing, dispensing or storage of flammable liquids or
                                                                                                                      combustible liquids.

                                                                                                    4.1.5.2.          Ignition Sources
                                                                                                                         1) Unless controlled in a manner that will not create a fire or explosion hazard,
                                                                                                                      a device, operation or activity that produces open flames, sparks or heat shall not be
                                                                                                                      permitted in an area described in Article 4.1.1.1. (See Note A-4.1.5.2.(1).)

                                                                                                    4.1.5.3.          Smoking
                                                                                                                        1) Except for designated safe smoking areas conforming to Subsection 2.4.2.,
                                                                                                                      smoking shall not be permitted in areas described in Article 4.1.1.1.


                                                                                                    National Fire Code of Canada 2020                                                                        Division B 4-3
                                                                                                    4.1.5.4.                                                                                             Division B

                                                                                                    4.1.5.4.         Removal of Combustibles
                                                                                                                        1) Areas described in Article 4.1.1.1. shall be kept clean and free of ground
                                                                                                                     vegetation and accumulations of combustible materials not essential to operations.
                                                                                                                        2) Used rags and similar materials contaminated with flammable liquids or
                                                                                                                     combustible liquids shall be stored in receptacles conforming to Article 2.4.1.3.

                                                                                                    4.1.5.5.         Emergency Planning
                                                                                                                         1) Emergency planning measures conforming to Section 2.8. shall be provided for
                                                                                                                     all buildings, parts of buildings and open areas.




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                                                                                                    4.1.5.6.         Access for Firefighting
                                                                                                                         1) Required aisles and other access paths shall be maintained to permit the
                                                                                                                     unobstructed movement of personnel and fire department apparatus so that
                                                                                                                     firefighting operations can be carried out in any part of an area used for the storage,
                                                                                                                     use or handling of flammable liquids or combustible liquids.

                                                                                                    4.1.5.7.         Hot Works
                                                                                                                        1) Hot works shall be performed in conformance with Section 5.2.

                                                                                                    4.1.5.8.         Basement Storage
                                                                                                                     (See Note A-4.1.5.8.)
                                                                                                                        1) Except as permitted in Sentence (2) and in dwelling units as described in
                                                                                                                     Article 4.2.4.5., and in mercantile occupancies as described in Sentence 4.2.5.3.(3), Class I
                                                                                                                     liquids shall not be stored, handled or used in basements or pits.
                                                                                                                        2) Up to 10 L of Class I liquid is permitted to be stored in basements, provided it is
                                                                                                                     stored in safety containers conforming to ULC/ORD-C30, “Safety Containers.”

                                                                                                    4.1.6.           Spill Control and Drainage Systems
                                                                                                    4.1.6.1.         Spill Control
                                                                                                                         1) Except as permitted in Sentence (3), a spill of flammable liquids or combustible
                                                                                                                     liquids shall be prevented from flowing outside the spill area and from reaching
                                                                                                                     waterways, sewer systems and potable water sources by
                                                                                                                         a) constructing a noncombustible barrier capable of containing the spill, or
                                                                                                                         b) grading the site or sloping the floor to divert the spill to a drainage system
                                                                                                                             conforming to Article 4.1.6.2.
                                                                                                                     (See Note A-4.1.6.1.(1).)
                                                                                                                        2) When barriers required in Sentence (1) are provided to contain accidental
                                                                                                                     spillage from aboveground storage tanks, they shall conform to the requirements for
                                                                                                                     secondary containment in Subsection 4.3.7.
                                                                                                                        3) Water-miscible effluent from spills and firefighting operations is permitted to
                                                                                                                     be directed into a sewer system, provided it does not create a fire hazard or any risk to
                                                                                                                     public health or safety.
                                                                                                                        4) Aboveground storage tanks shall be provided with a spill containment device as
                                                                                                                     required by Sentences 4.3.6.4.(4) and 4.3.15.1.(3).

                                                                                                    4.1.6.2.         Drainage Systems
                                                                                                                        1) A drainage system referred to in Clause 4.1.6.1.(1)(b) shall
                                                                                                                        a) terminate at a location where a spill of flammable liquids or combustible liquids
                                                                                                                           will not create a fire hazard or any risk to public health or safety, and
                                                                                                                        b) direct the spill away from the areas identified in Article 2.8.2.7.
                                                                                                                        2) Closed drainage systems shall be equipped with a trap. (See Note A-4.1.6.2.(2).)


                                                                                                    4-4 Division B                                                                          National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                4.1.7.2.

                                                                                                    4.1.6.3.          Spills and Leaks
                                                                                                                          1) Maintenance and operating procedures shall be established to prevent the
                                                                                                                      escape of flammable liquids or combustible liquids to areas where they could create a
                                                                                                                      fire or explosion hazard.
                                                                                                                         2) Except as provided in Sentence (3), all reasonable steps shall be taken to recover
                                                                                                                      escaped liquid and to remove or treat contaminated soil.
                                                                                                                         3) Spilled or leaked flammable liquids or combustible liquids shall be
                                                                                                                         a) flushed to a location where they will not create a fire or explosion hazard, or
                                                                                                                            any risk to public health or safety, or




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                                                                                                                         b) neutralized or absorbed and cleaned up with the aid of a product that
                                                                                                                            is compatible and non-reactive with the liquid being cleaned up (see
                                                                                                                            Note A-4.1.6.3.(3)(b)), and
                                                                                                                                i) deposited in a receptacle conforming to Article 2.4.1.3., or
                                                                                                                               ii) disposed of in a manner that does not create a fire or
                                                                                                                                   explosion hazard.

                                                                                                    4.1.7.            Ventilation
                                                                                                    4.1.7.1.          Rooms or Enclosed Spaces
                                                                                                                          1) Where flammable liquids and combustible liquids are processed, handled, stored,
                                                                                                                      dispensed, transferred or used within rooms or enclosed spaces, ventilation shall
                                                                                                                      conform to the appropriate provincial or territorial regulations or municipal bylaws, or
                                                                                                                      in the absence of such legislation, to this Part and the NBC. (See Note A-4.1.7.1.(1).)

                                                                                                    4.1.7.2.          Ventilation Measures
                                                                                                                         1) Except as permitted in Sentence (2), a room or enclosed space referred to in
                                                                                                                      Article 4.1.7.1. shall be provided with one of the following ventilation systems:
                                                                                                                         a) continuous mechanical ventilation where Class I liquids are processed,
                                                                                                                              dispensed or used in a manner that releases flammable vapours into the
                                                                                                                              room or enclosed space, or
                                                                                                                         b) either natural or continuous mechanical ventilation where
                                                                                                                                 i) Class I liquids are stored, processed, dispensed or used in a
                                                                                                                                    manner that does not release flammable vapours into the
                                                                                                                                    room or enclosed space, or
                                                                                                                                ii) Class II liquids are processed, dispensed or used.
                                                                                                                         2) Ventilation referred to in Clause (1)(b) need not be provided for the storage
                                                                                                                      of Class I liquids if
                                                                                                                          a) storage consists of only closed containers, and
                                                                                                                         b) no dispensing operations are performed.
                                                                                                                         3) Ventilation required in Sentence (1) shall be sufficient to ensure that flammable
                                                                                                                      vapour concentrations outside the zone identified as Class I, Zone 0 or 1 in conformance
                                                                                                                      with Article 4.1.4.1. do not exceed 25% of the lower explosive limit of the flammable
                                                                                                                      vapour. (See Note A-4.1.7.2.(3).)
                                                                                                                         4) A mechanical ventilation system is deemed to comply with Sentence (3) if it is
                                                                                                                      capable of exhausting at least 18 m3/h/m2 of room area, but not less than 250 m3/h.
                                                                                                                         5) Where continuous mechanical ventilation is installed in order to meet the
                                                                                                                      conditions of Sentence (1), it shall
                                                                                                                         a) be provided with automatic interlocks so that the activity generating
                                                                                                                             flammable vapours cannot be performed when the ventilation system is
                                                                                                                             not in operation,
                                                                                                                         b) sound an audible alarm in an attended area upon shut-down of the
                                                                                                                             ventilation system, and
                                                                                                                         c) conform to NFPA 91, “Standard for Exhaust Systems for Air Conveying of
                                                                                                                             Vapors, Gases, Mists, and Particulate Solids.”


                                                                                                    National Fire Code of Canada 2020                                                                         Division B 4-5
                                                                                                    4.1.7.3.                                                                                          Division B

                                                                                                    4.1.7.3.         Location of Air Inlets and Outlets
                                                                                                                        1) Ventilation air inlets and outlets within a room or enclosed space referred to
                                                                                                                     in Article 4.1.7.1. shall be arranged so as to provide air movement in all portions of
                                                                                                                     the room to prevent the accumulation of flammable vapours in conformance with
                                                                                                                     Sentence 4.1.7.2.(3).
                                                                                                                        2) Inlets and outlets conforming to Sentence (3) or (4) shall be deemed to have met
                                                                                                                     the requirements of Sentence (1).
                                                                                                                        3) Where the flammable vapour being removed is heavier than air,
                                                                                                                        a) at least one air inlet shall be located at a point near a wall, and no higher
                                                                                                                           than 300 mm from the floor, and




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                                                                                                                        b) at least one air outlet shall be located near the opposite wall, no higher than
                                                                                                                           300 mm from the floor.
                                                                                                                        4) Where the flammable vapour being removed is lighter than air,
                                                                                                                        a) at least one air inlet shall be located at a point near a wall, and no lower
                                                                                                                           than 300 mm from the ceiling, and
                                                                                                                        b) at least one air outlet shall be located near the opposite wall, no lower than
                                                                                                                           300 mm from the ceiling.

                                                                                                    4.1.7.4.         Location of Mechanical Ventilation Exhaust Air Outlets
                                                                                                                        1) Except as provided in Article 4.1.7.6., the exhaust air outlet from a mechanical
                                                                                                                     ventilation system required in Article 4.1.7.2. shall be
                                                                                                                        a) located outdoors, not less than 3 m from any building opening, and
                                                                                                                        b) arranged so that the exhaust air does not discharge toward any unprotected
                                                                                                                             opening within 7.5 m of the discharge point.

                                                                                                    4.1.7.5.         Make-up Air
                                                                                                                        1) Make-up air for a natural or mechanical ventilation system shall be taken from
                                                                                                                     a point remote from any exhaust air discharge described in Article 4.1.7.4.
                                                                                                                        2) Make-up air for a natural ventilation system shall be taken from a point outside
                                                                                                                     the building.
                                                                                                                        3) Subject to the provisions in Clause 3.2.8.2.(1)(c), where make-up air for a
                                                                                                                     mechanical ventilation system is taken from within the building, the opening into the
                                                                                                                     room or enclosed space shall be provided with a fire damper.

                                                                                                    4.1.7.6.         Recirculating Ventilation Systems
                                                                                                                        1) Where a mechanical ventilation system is installed in conformance with
                                                                                                                     Article 4.1.7.2., and where exhaust air is recirculated, a fail-safe vapour detection and
                                                                                                                     alarm system shall be provided
                                                                                                                         a) to continuously monitor the flammable vapour concentration in the exhaust
                                                                                                                             air, and
                                                                                                                         b) if the vapour concentration in Clause (a) exceeds 25% of the lower explosive
                                                                                                                             limit of the vapour, to
                                                                                                                                 i) sound an alarm in an attended area,
                                                                                                                                ii) stop the recirculation of air, and
                                                                                                                               iii) redirect the exhaust air to an outdoor location.

                                                                                                    4.1.7.7.         Exclusive Use of Ducts
                                                                                                                        1) Ducts used in a ventilation system conforming to Article 4.1.7.2. shall not be
                                                                                                                     used for any other ventilation or exhaust system.

                                                                                                    4.1.7.8.         Maintenance
                                                                                                                       1) All components of the ventilation system shall be kept free of obstructions that
                                                                                                                     may interfere with its operation.


                                                                                                    4-6 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                4.1.8.4.

                                                                                                    4.1.8.            Handling of Flammable and Combustible Liquids

                                                                                                    4.1.8.1.          Containers and Storage Tanks

                                                                                                                          1) Except as provided in Sentence 4.1.8.4.(1), flammable liquids and combustible
                                                                                                                      liquids shall be kept in containers conforming to Subsection 4.2.3. or in storage tanks
                                                                                                                      conforming to Subsection 4.3.1.

                                                                                                                         2) Containers and storage tanks for flammable liquids or combustible liquids shall
                                                                                                                      be kept closed when not in use.




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                                                                                                                         3) Containers and storage tanks shall not be filled beyond their safe filling level.

                                                                                                    4.1.8.2.          Control of Static Electric Charge

                                                                                                                         1) When Class I liquids are dispensed from or into a container or a storage tank,
                                                                                                                         a) all metallic or electrically conducting material in the transfer system shall be
                                                                                                                            electrically bonded and grounded, or
                                                                                                                         b) if the container or tank is made of non-electrically conducting material,
                                                                                                                            measures shall be taken to minimize the potential for static electric charge to
                                                                                                                            develop (see Note A-4.1.8.2.(1)(b)).

                                                                                                                         2) Except as provided in Sentence (3), when Class I liquids are transferred into a
                                                                                                                      storage tank through the top of the tank, the fill pipe shall terminate within 150 mm of
                                                                                                                      the bottom of the tank.

                                                                                                                         3) Sentence (2) shall not apply when
                                                                                                                         a) the storage tank vapour space cannot exceed 25% of the lower explosive limit or
                                                                                                                            is filled with an inert gas that prevents the ignition of the vapour mixture, or
                                                                                                                         b) the liquid being transferred has a minimum conductivity that prevents the
                                                                                                                            accumulation of static electricity (see Note A-4.1.8.2.(3)(b)).

                                                                                                                        4) Fill pipes referred to in Sentence (2) shall be installed in such a way as to
                                                                                                                      minimize vibration of the pipe.

                                                                                                    4.1.8.3.          Transfer

                                                                                                                         1) Class I liquids shall be drawn from or transferred into containers or storage
                                                                                                                      tanks within a building
                                                                                                                          a) through a piping or transfer system conforming to Section 4.5.,
                                                                                                                         b) by means of a pump designed in conformance with good engineering
                                                                                                                             practice on top of the container or storage tank, or
                                                                                                                          c) by gravity through a self-closing valve designed in conformance with good
                                                                                                                             engineering practice.
                                                                                                                      (See Note A-4.1.8.3.(1).)

                                                                                                                         2) Except as provided in Subsection 4.5.9., the transfer of flammable liquids or
                                                                                                                      combustible liquids by means of pressure applied to a container or storage tank shall
                                                                                                                      not be permitted.

                                                                                                    4.1.8.4.          Fuel Tanks of Vehicles

                                                                                                                         1) It is permitted to use movable tanks for dispensing flammable liquids or
                                                                                                                      combustible liquids into the fuel tanks of vehicles or other motorized equipment,
                                                                                                                      provided such movable tanks are used in conformance with the requirements of this
                                                                                                                      Part for storage tanks.

                                                                                                                         2) Only enclosed pumping equipment designed in conformance with good
                                                                                                                      engineering practice shall be used to transfer Class I liquids to or from the fuel tanks of
                                                                                                                      vehicles inside buildings. (See Note A-4.1.8.3.(1).)


                                                                                                    National Fire Code of Canada 2020                                                                         Division B 4-7
                                                                                                    4.2.1.1.                                                                                           Division B

                                                                                                    Section 4.2. Container Storage and Handling
                                                                                                    4.2.1.           Scope
                                                                                                    4.2.1.1.         Application
                                                                                                                       1) Except as provided in Sentence (2), this Section shall apply to the storage,
                                                                                                                     handling and use of flammable liquids or combustible liquids that are in
                                                                                                                        a) containers conforming to Clauses 4.2.3.1.(1)(a) to (d) having an individual
                                                                                                                            capacity of not more than 230 L,
                                                                                                                        b) portable tanks conforming to Clause 4.2.3.1.(1)(e) having an individual




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                                                                                                                            capacity of not more than 2 500 L, or
                                                                                                                        c) intermediate bulk containers conforming to Clause 4.2.3.1.(1)(a) having an
                                                                                                                            individual capacity of not more than 3 000 L.
                                                                                                                        2) Except as otherwise stated in this Code, this Section shall not apply to
                                                                                                                        a) bulk plants covered in Section 4.7., refineries covered in Section 4.9. and
                                                                                                                           distilleries covered in Section 4.10.,
                                                                                                                        b) liquids in the fuel tank of motors or engines,
                                                                                                                        c) distilled beverage alcohol in closed containers when stored in conformance
                                                                                                                           with Part 3,
                                                                                                                        d) food and pharmaceutical products when in closed containers having a
                                                                                                                           capacity of not more than 5 L, or
                                                                                                                        e) products containing not more than 50% by volume of water-miscible
                                                                                                                           flammable liquids or combustible liquids with the remainder of the solution
                                                                                                                           being non-flammable, when in closed containers having a capacity of not
                                                                                                                           more than 5 L.
                                                                                                                        3) Portable tanks having a capacity greater than 2 500 L shall be installed in
                                                                                                                     conformance with Section 4.3.
                                                                                                                        4) For the purpose of this Section, unstable liquids shall meet the requirements
                                                                                                                     for Class IA liquids.
                                                                                                                       5) Except as otherwise stated, requirements for containers in this Part shall also
                                                                                                                     apply to portable tanks described in Sentence (1).

                                                                                                    4.2.2.           General
                                                                                                    4.2.2.1.         Prohibited Locations
                                                                                                                        1) Flammable liquids or combustible liquids shall not be stored in or adjacent to exits,
                                                                                                                     elevators or principal routes that provide access to exits.

                                                                                                    4.2.2.2.         Storage Arrangement and Conditions
                                                                                                                        1) Flammable liquids and combustible liquids shall be stored in stable piles such that
                                                                                                                     they will not collapse under normal operating conditions.
                                                                                                                       2) Flammable liquids and combustible liquids shall not be stored in areas where they
                                                                                                                     may be subject to
                                                                                                                       a) temperature extremes or atmospheric pressure that could cause their
                                                                                                                           containers to become deformed or rupture, or
                                                                                                                       b) physical impact or temperature extremes that could cause a chemical
                                                                                                                           reaction or chemical instability such that a fire could occur.

                                                                                                    4.2.2.3.         Separation from Other Dangerous Goods
                                                                                                                        1) Except as provided in Sentence (2), flammable liquids and combustible liquids shall
                                                                                                                     be separated from other dangerous goods in conformance with Sections 3.2. and 3.3.
                                                                                                                        2) For the purpose of applying Table 3.2.7.6., Class IIIA and B3 liquids shall be
                                                                                                                     treated as dangerous goods classified as flammable liquids. (See Note A-4.2.2.3.(2).)


                                                                                                    4-8 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                  4.2.4.2.

                                                                                                    4.2.3.            Containers and Portable Tanks
                                                                                                    4.2.3.1.          Design and Construction
                                                                                                                         1) Except as permitted in Article 4.2.3.3., containers and portable tanks for
                                                                                                                      flammable liquids or combustible liquids shall be built in conformance with the following:
                                                                                                                          a) TC SOR/2001-286, “Transportation of Dangerous Goods Regulations
                                                                                                                             (TDGR),”
                                                                                                                          b) CSA B376-M, “Portable Containers for Gasoline and Other Petroleum Fuels,”
                                                                                                                          c) CSA B306-M, “Portable Fuel Tanks for Marine Use,”
                                                                                                                          d) ULC/ORD-C30, “Safety Containers,” or
                                                                                                                          e) CSA B620, “Highway tanks and TC portable tanks for the transportation




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                                                                                                                             of dangerous goods.”

                                                                                                    4.2.3.2.          Markings or Labels
                                                                                                                          1) Except as provided in Sentence (2) and Article 4.2.3.1., containers for flammable
                                                                                                                      liquids or combustible liquids shall be distinctly marked or labelled in easily legible
                                                                                                                      type that is in contrast to any other printed matter on the label with a warning to
                                                                                                                      indicate that
                                                                                                                          a) the material in the container is flammable,
                                                                                                                          b) it should be kept away from heat, sparks and open flames, and
                                                                                                                          c) it should be kept closed when not in use.
                                                                                                                          2) Markings referred to in Sentence (1) are not required when the container
                                                                                                                      is labelled in conformance with
                                                                                                                           a) TC SOR/2001-286, “Transportation of Dangerous Goods Regulations
                                                                                                                              (TDGR),”
                                                                                                                          b) HC R.S.C., 1985, c. H-3, “Hazardous Products Act,” or
                                                                                                                           c) HC S.C. 2002, c. 28, “Pest Control Products Act.”

                                                                                                    4.2.3.3.          Other Types of Containers
                                                                                                                         1) The storage, handling and use of flammable liquids or combustible liquids in a
                                                                                                                      container other than one of those listed in Article 4.2.3.1. shall be permitted only if
                                                                                                                         a) the required purity of the liquid would be affected by containers of the
                                                                                                                             types listed in Article 4.2.3.1. or if the liquid would cause the excessive
                                                                                                                             corrosion of those types of containers,
                                                                                                                         b) the container not conforming to Article 4.2.3.1. has a capacity of not more
                                                                                                                             than 1 L if used for Class I liquids and not more than 5 L if used for Class II
                                                                                                                             or IIIA liquids, or
                                                                                                                         c) the container not conforming to Article 4.2.3.1. is a sample container used
                                                                                                                             for quality control purposes or for testing by regulatory officials.

                                                                                                    4.2.4.            Assembly and Residential Occupancies
                                                                                                    4.2.4.1.          Application
                                                                                                                         1) This Subsection shall apply to the storage and handling of flammable liquids and
                                                                                                                      combustible liquids in buildings classified as assembly or residential occupancies, except
                                                                                                                      that it shall not apply to nonresidential schools, universities or colleges covered in
                                                                                                                      Subsection 4.2.6.

                                                                                                    4.2.4.2.          Maximum Quantities
                                                                                                                         1) Except as provided in Sentence (4) and in Articles 4.2.4.5. and 4.2.4.6., the
                                                                                                                      maximum quantity of flammable liquids or combustible liquids stored in a fire compartment
                                                                                                                      with a fire-resistance rating of at least 1 h shall conform to Sentences (2) and (3).
                                                                                                                         2) When a single class of flammable liquid or combustible liquid is stored in a fire
                                                                                                                      compartment with a fire-resistance rating of at least 1 h, the total quantity of liquid shall
                                                                                                                      not exceed
                                                                                                                         a) 30 L of Class I liquids,


                                                                                                    National Fire Code of Canada 2020                                                                           Division B 4-9
                                                                                                    4.2.4.3.                                                                                            Division B

                                                                                                                         b) 150 L of Class II liquids, or
                                                                                                                         c) 600 L of Class IIIA liquids.

                                                                                                                          3) When 2 or more classes of flammable liquid or combustible liquid are stored in the
                                                                                                                      same building, the total quantity permitted for each class of liquid shall be calculated as
                                                                                                                      follows:




                                                                                                                      where




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                                                                                                                             qI = actual quantity of Class I liquids present,
                                                                                                                            qII = actual quantity of Class II liquids present, and
                                                                                                                          qIIIA = actual quantity of Class IIIA liquids present.

                                                                                                                         4) Quantities of flammable liquids or combustible liquids exceeding those permitted
                                                                                                                      in Sentence (1) are permitted, provided they are kept
                                                                                                                          a) in storage cabinets conforming to Subsection 4.2.10., except that the total
                                                                                                                             quantity of flammable liquids and combustible liquids stored in such cabinets
                                                                                                                             shall not exceed the quantity permitted for one cabinet, or
                                                                                                                          b) in a storage room conforming to Subsection 4.2.9. and having no openings
                                                                                                                             that communicate directly with the public portions of the building.

                                                                                                    4.2.4.3.          Storage Cabinets and Storage Rooms

                                                                                                                         1) The storage cabinets referred to in Sentence 4.2.4.2.(4) shall not be located
                                                                                                                      above or below the first storey.

                                                                                                                         2) The location of storage rooms referred to in Sentence 4.2.4.2.(4) shall conform to
                                                                                                                      Article 3.3.2.16. and Sentence 3.3.4.3.(4) of Division B of the NBC.

                                                                                                    4.2.4.4.          Exterior Balconies

                                                                                                                         1) Flammable liquids and combustible liquids shall not be stored on exterior balconies.

                                                                                                    4.2.4.5.          Dwelling Units

                                                                                                                         1) Not more than 30 L of flammable liquids and combustible liquids, of which not
                                                                                                                      more than 10 L shall be Class I liquids, are permitted to be stored in each dwelling unit.
                                                                                                                      (See Sentence 4.1.1.1.(3) for oil-burning appliances.)

                                                                                                    4.2.4.6.          Attached Garages and Sheds

                                                                                                                         1) Not more than 50 L of flammable liquids and combustible liquids, of which not
                                                                                                                      more than 30 L shall be Class I liquids, are permitted to be stored in a garage or shed
                                                                                                                      attached to a dwelling unit.

                                                                                                    4.2.5.            Mercantile Occupancies

                                                                                                    4.2.5.1.          Application

                                                                                                                         1) This Subsection applies to the storage and handling of flammable liquids and
                                                                                                                      combustible liquids in mercantile occupancies.

                                                                                                    4.2.5.2.          Maximum Quantities

                                                                                                                         1) Except as provided in Sentence (5), the quantities of flammable liquids and
                                                                                                                      combustible liquids stored in mercantile occupancies shall not exceed those in Sentences (2)
                                                                                                                      to (4).


                                                                                                    4-10 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                4.2.6.2.

                                                                                                                         2) In mercantile occupancies that are not sprinklered, the maximum quantity of
                                                                                                                      flammable liquids and combustible liquids permitted to be stored in a single suite shall
                                                                                                                      be the lesser of
                                                                                                                          a) 8 L/m2 of the total area of the suite, provided that not more than 2 L/m2 are
                                                                                                                              Class I liquids, of which not more than 0.3 L/m2 shall be Class IA, Class IB,
                                                                                                                              or any combination of these 2 classes, or
                                                                                                                          b) 8 000 L, provided that not more than 2 000 L are Class I liquids, of which not
                                                                                                                              more than 300 L shall be Class IA, Class IB, or any combination of these 2
                                                                                                                              classes.
                                                                                                                        3) In sprinklered mercantile occupancies, the maximum quantity of flammable liquids
                                                                                                                      and combustible liquids permitted to be stored in a single suite shall be the lesser of




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                                                                                                                         a) 24 L/m2 of the total area of the suite, provided that not more than 6 L/m2 are
                                                                                                                             Class I liquids, of which not more than 1 L/m2 shall be Class IA, Class IB, or
                                                                                                                             any combination of these 2 classes, or
                                                                                                                         b) 24 000 L, provided that not more than 6 000 L are Class I liquids, of which
                                                                                                                             not more than 1 000 L shall be Class IA, Class IB, or any combination of
                                                                                                                             these 2 classes.
                                                                                                                        4) For the purposes of calculating permissible quantities in Sentences (2) and (3),
                                                                                                                      mercantile occupancies of less than 250 m2 floor area shall be assumed to be 250 m2 in area.
                                                                                                                         5) Quantities of flammable liquids and combustible liquids in excess of those permitted
                                                                                                                      in Sentences (2) to (4) shall be kept in a storage area conforming to Subsection 4.2.7.

                                                                                                    4.2.5.3.          Containers
                                                                                                                         1) Flammable liquids and combustible liquids in mercantile occupancies shall be kept
                                                                                                                      in closed containers.
                                                                                                                         2) Closed containers of Class I and II liquids shall not be stacked more than 1.5 m
                                                                                                                      high on floors, or 1 m high on individual fixed shelves.
                                                                                                                        3) Class I liquids in closed containers are permitted to be stored in basements of
                                                                                                                      mercantile occupancies.

                                                                                                    4.2.5.4.          Transfer
                                                                                                                         1) Except as permitted in Sentence (2), in mercantile occupancies, the transfer of
                                                                                                                      flammable liquids or combustible liquids from or into containers shall only be permitted in
                                                                                                                      a storage room conforming to Subsection 4.2.9. (See Note A-4.2.5.4.(1).)
                                                                                                                         2) Tinting operations involving paint containers not exceeding 25 L in capacity
                                                                                                                      may be carried out in mercantile occupancies outside of a storage room conforming
                                                                                                                      to Subsection 4.2.9.

                                                                                                    4.2.6.            Business and Personal Services, Educational, Care,
                                                                                                                      Home-Type Care, Treatment and Detention Occupancies
                                                                                                    4.2.6.1.          Application
                                                                                                                         1) This Subsection shall apply to the storage, handling and use of flammable liquids
                                                                                                                      and combustible liquids in business and personal services, care, home-type care, treatment or
                                                                                                                      detention occupancies and shall include non-residential schools, universities and colleges.

                                                                                                    4.2.6.2.          Storage Cabinets and Storage Rooms
                                                                                                                         1) Except as permitted in Article 4.2.6.3., flammable liquids and combustible liquids
                                                                                                                      shall be kept in closed containers and stored
                                                                                                                         a) in cabinets conforming to Subsection 4.2.10., except that the total quantity
                                                                                                                              of flammable liquids and combustible liquids stored in such cabinets shall not
                                                                                                                              exceed the quantity permitted for one cabinet, or
                                                                                                                         b) in a room having no openings communicating directly with the public
                                                                                                                              portions of the building and conforming to Subsection 4.2.9.


                                                                                                    National Fire Code of Canada 2020                                                                        Division B 4-11
                                                                                                    4.2.6.3.                                                                                                Division B

                                                                                                    4.2.6.3.          Maximum Quantities

                                                                                                                         1) Except as provided in Sentence (2), the storage of flammable liquids and
                                                                                                                      combustible liquids outside of a cabinet or storage room required in Article 4.2.6.2. is
                                                                                                                      permitted, provided such storage does not exceed
                                                                                                                         a) 10 L, including not more than 5 L of Class I liquids, in a single room, or
                                                                                                                         b) 250 L, including not more than 60 L of Class II liquids, or 10 L of Class I
                                                                                                                             liquids, in a single fire compartment with a fire-resistance rating of at least
                                                                                                                             45 min.

                                                                                                                         2) In the automotive shops or industrial arts area of an educational facility, storage
                                                                                                                      of up to 75 L of flammable liquids and combustible liquids, including not more than 25 L of




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                                                                                                                      Class I liquids, shall be permitted outside of a cabinet or storage room as required in
                                                                                                                      Article 4.2.6.2.

                                                                                                    4.2.6.4.          Containers

                                                                                                                         1) Where individual containers with a capacity of more than 5 L are required for
                                                                                                                      the storage of flammable liquids or combustible liquids in a building, safety containers of
                                                                                                                      not more than 25 L capacity conforming to ULC/ORD-C30, “Safety Containers,” shall
                                                                                                                      be used.

                                                                                                    4.2.6.5.          Separation of Dangerous Goods

                                                                                                                         1) Flammable liquids or combustible liquids stored in cabinets or storage rooms shall
                                                                                                                      be separated from other dangerous goods in conformance with Article 4.2.2.3.

                                                                                                    4.2.7.            Industrial Occupancies

                                                                                                    4.2.7.1.          Application

                                                                                                                          1) Except as provided in Subsection 4.2.12. regarding self-service storage buildings,
                                                                                                                      this Subsection applies to the storage of flammable liquids and combustible liquids in
                                                                                                                      closed containers in industrial occupancies.

                                                                                                    4.2.7.2.          Storage Facilities

                                                                                                                         1)   In industrial occupancies, flammable liquids and combustible liquids shall be stored
                                                                                                                         a)   in conformance with Subsection 4.2.8.,
                                                                                                                         b)   in cabinets conforming to Subsection 4.2.10.,
                                                                                                                         c)   in rooms conforming to Subsection 4.2.9., or
                                                                                                                         d)   in storage areas conforming to Article 4.2.7.5.

                                                                                                    4.2.7.3.          Fire Compartments

                                                                                                                         1) Fire compartments regulated by this Subsection shall be separated from the
                                                                                                                      remainder of the building by a fire separation having a fire-resistance rating of at least 2 h.

                                                                                                    4.2.7.4.          Dispensing and Transfer

                                                                                                                         1) Except as permitted in Subsection 4.2.8. and in Sentence (2), the dispensing
                                                                                                                      or transfer of Class I or II liquids shall be conducted in rooms conforming to
                                                                                                                      Subsection 4.2.9.

                                                                                                                         2) It is permitted to dispense or transfer Class I or II liquids in a storage area
                                                                                                                      conforming to Article 4.2.7.5., provided
                                                                                                                         a) the storage area does not exceed 100 m2, and
                                                                                                                         b) the dispensing or transfer operations conform to the applicable requirements
                                                                                                                            of Subsection 4.2.9.


                                                                                                    4-12 Division B                                                                           National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                            4.2.7.5.

                                                                                                    4.2.7.5.                Maximum Quantities

                                                                                                                               1) Except as provided in Sentence (2), the storage of flammable liquids and
                                                                                                                            combustible liquids in storage areas specified in Clause 4.2.7.2.(1)(d) shall
                                                                                                                               a) conform to Table 4.2.7.5.-A
                                                                                                                                      i) where it consists of palletized or solid piled storage, or
                                                                                                                                     ii) where stored in racks in buildings not protected in
                                                                                                                                          conformance with Article 4.2.7.6., or
                                                                                                                               b) conform to Table 4.2.7.5.-B where stored in racks in buildings protected in
                                                                                                                                  conformance with Article 4.2.7.6.




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                                                                                                                                                                 Table 4.2.7.5.-A
                                                                                                                           Indoor Container Storage (Palletized or Solid Piled Storage and Unprotected Rack Storage)
                                                                                                                                     Forming Part of Sentences 4.2.7.5.(1) and (4), 4.2.8.4.(3) and 4.2.9.1.(3)

                                                                                                                                                            Protected Storage (1)                                   Unprotected Storage
                                                                                                                                                                                      Maximum                                               Maximum
                                                                                                          Class of                           Maximum             Maximum              Quantity       Maximum             Maximum            Quantity
                                                                                                                           Storage Level
                                                                                                           Liquid                           Quantity per      Storage Height,         per Fire      Quantity per      Storage Height,       per Fire
                                                                                                                                              ISA, L                m               Compartment,      ISA, L                m             Compartment,
                                                                                                                                                                                         L                                                     L
                                                                                                                       First storey            10 000               1.5                50 000          2 500                1.5              2 500
                                                                                                                       Storeys above the
                                                                                                     Class IA                                  7 500                1.5                30 000          2 500                1.5              2 500
                                                                                                                       first storey
                                                                                                                       Basement             Not permitted      Not permitted        Not permitted   Not permitted      Not permitted      Not permitted
                                                                                                                       First storey            20 000               2.0                60 000          10 000               1.5              10 000
                                                                                                     Class IB or       Storeys above the
                                                                                                                                               10 000               2.0                50 000          10 000               1.5              10 000
                                                                                                     IC                first storey
                                                                                                                       Basement             Not permitted      Not permitted        Not permitted   Not permitted      Not permitted      Not permitted
                                                                                                                       First storey and
                                                                                                                       storeys above the       40 000               3.0               100 000          15 000               3.0              30 000
                                                                                                     Class II          first storey
                                                                                                                       Basement                25 000               1.5                25 000       Not permitted      Not permitted      Not permitted
                                                                                                                       First storey and
                                                                                                                       storeys above the       60 000               6.0               200 000          50 000               4.5             100 000
                                                                                                     Class IIIA        first storey
                                                                                                                       Basement                40 000               3.0               100 000       Not permitted      Not permitted      Not permitted

                                                                                                    Notes to Table 4.2.7.5.-A:
                                                                                                    (1)   See Article 4.2.7.6.




                                                                                                    National Fire Code of Canada 2020                                                                                                   Division B 4-13
                                                                                                    4.2.7.5.                                                                                                         Division B

                                                                                                                                                                Table 4.2.7.5.-B
                                                                                                                                              Indoor Container Storage (Protected Rack Storage) (1)
                                                                                                                                                  Forming Part of Sentences 4.2.7.5.(1) and (4)

                                                                                                                                                                                                           Maximum Quantity per ISA and
                                                                                                                Class of Liquid                     Storage Level           Maximum Storage Height, m
                                                                                                                                                                                                             per Fire Compartment, L
                                                                                                                                         First storey                                  7.5                            30 000
                                                                                                     Class IA                            Storeys above first storey                    4.5                            17 000
                                                                                                                                         Basement                                 Not permitted                    Not permitted
                                                                                                                                         First storey                                  7.5                            60 000




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                                                                                                     Class IB or IC                      Storeys above first storey                    4.5                            35 000
                                                                                                                                         Basement                                 Not permitted                    Not permitted
                                                                                                                                         First storey                                  7.5                           100 000
                                                                                                     Class II                            Storeys above first storey                    7.5                           100 000
                                                                                                                                         Basement                                      4.5                            35 000
                                                                                                                                         First storey                                 12.0                           200 000
                                                                                                     Class IIIA                          Storeys above first storey                    6.0                           200 000
                                                                                                                                         Basement                                      6.0                           100 000

                                                                                                    Notes to Table 4.2.7.5.-B:
                                                                                                    (1)   See Article 4.2.7.6.


                                                                                                                                2) Where a building or part of a building is designed for the storage of flammable
                                                                                                                            liquids or combustible liquids, there is no limit on the total quantity of storage per fire
                                                                                                                            compartment, provided the building or part of building is separated from adjacent
                                                                                                                            buildings or parts of buildings by
                                                                                                                                a) a firewall having a fire-resistance rating of at least 4 h, or
                                                                                                                                b) spatial separation in conformance with the NBC.
                                                                                                                            (See Note A-4.2.7.5.(2).)

                                                                                                                               3) Where containers for 2 or more liquids having different flash points are stored
                                                                                                                            together in a single individual storage area, the maximum quantity permitted in the
                                                                                                                            individual storage area shall equal that permitted for the liquid with the lowest flash point.

                                                                                                                               4) Where flammable liquids or combustible liquids are stored in solid pile or rack
                                                                                                                            storage configurations or a combination of both in a single fire compartment, the
                                                                                                                            maximum quantity permitted for each class of liquid shall be calculated as follows:




                                                                                                                            where
                                                                                                                            qIA, IB or IC = actual quantity of Class IA, IB or IC liquids present in a rack or solid pile,
                                                                                                                                     qII = actual quantity of Class II liquids present in a rack or solid pile,
                                                                                                                                  qIIIA = actual quantity of Class IIIA liquids present in a rack or solid pile,
                                                                                                                            QIA, IB, IC = maximum quantity of Class IA, IB or IC liquids permitted in Table 4.2.7.5.-A
                                                                                                                                            or Table 4.2.7.5.-B for the arrangement,
                                                                                                                                    QII = maximum quantity of Class II liquids permitted in Table 4.2.7.5.-A or
                                                                                                                                            Table 4.2.7.5.-B for the arrangement, and
                                                                                                                                 QIIIA = maximum quantity of Class IIIA liquids permitted in Table 4.2.7.5.-A or
                                                                                                                                            Table 4.2.7.5.-B for the arrangement.




                                                                                                    4-14 Division B                                                                                     National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                4.2.8.2.

                                                                                                    4.2.7.6.          Fire Suppression Systems
                                                                                                                         1) Where protection is required by this Code, storage areas for flammable liquids
                                                                                                                      and combustible liquids shall be
                                                                                                                         a) sprinklered in conformance with NFPA 30, “Flammable and Combustible
                                                                                                                            Liquids Code,” or
                                                                                                                         b) protected by an automatic fire suppression system.
                                                                                                                      (See Note A-4.2.7.6.(1).)

                                                                                                    4.2.7.7.          Clearances
                                                                                                                         1) The clearance between the top of storage and the lowest structural members




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                                                                                                                      shall not be less than 450 mm.
                                                                                                                         2) The clearance between the top of storage and the ceiling sprinkler deflectors or
                                                                                                                      other overhead fire protection systems shall be in accordance with the standard used
                                                                                                                      for the design of the respective system.
                                                                                                                         3) A clearance of not less than 400 mm shall be maintained between stored
                                                                                                                      flammable liquids and combustible liquids and walls, except that where the width of
                                                                                                                      storage adjacent to the wall is not more than 1.5 m, such wall clearance is not required.
                                                                                                                      (See Note A-4.2.7.7.(3).)

                                                                                                    4.2.7.8.          Aisles
                                                                                                                         1) Except as provided in Article 4.2.7.9., main aisles, access aisles and aisles
                                                                                                                      defining individual storage areas shall be in conformance with Article 3.2.2.2.

                                                                                                    4.2.7.9.          Separation from Other Dangerous Goods
                                                                                                                         1) Flammable liquids and combustible liquids shall not be stored with other dangerous
                                                                                                                      goods unless in conformance with Article 4.2.2.3.

                                                                                                    4.2.7.10.         Separation from Combustible Products
                                                                                                                         1) Except for Class I commodities, flammable liquids and combustible liquids
                                                                                                                      shall not be stored in the same individual storage area with other products listed in
                                                                                                                      Sentence 3.2.1.1.(1).

                                                                                                    4.2.7.11.         Absorbents
                                                                                                                         1) Absorbent materials shall be available in the storage area for use in clean-up of
                                                                                                                      spilled flammable liquids or combustible liquids in conformance with Article 4.1.6.3.

                                                                                                    4.2.8.            Incidental Use
                                                                                                    4.2.8.1.          Application
                                                                                                                          1) Except as otherwise noted in this Part, this Subsection applies to industrial
                                                                                                                      occupancies where the use, storage and handling of flammable liquids or combustible
                                                                                                                      liquids is secondary to the principal activity. (See Note A-4.2.8.1.(1).)

                                                                                                    4.2.8.2.          Maximum Quantities
                                                                                                                          1) Except as provided in Sentences (2) and (3) and in Article 4.2.8.4., the quantity
                                                                                                                      of flammable liquids and combustible liquids permitted to be located outside of storage
                                                                                                                      rooms conforming to Subsection 4.2.7., 4.2.9. or 4.3.14., or storage cabinets conforming
                                                                                                                      to Subsection 4.2.10., in any one fire compartment of a building, shall not be more than
                                                                                                                           a) 600 L of flammable liquids and combustible liquids in closed containers, of which
                                                                                                                              not more than 100 L shall be Class IA liquids, and
                                                                                                                          b) 5 000 L of Class IB, IC, II and IIIA liquids in storage tanks or portable tanks.
                                                                                                                         2) Where required for normal plant activity, quantities of flammable liquids and
                                                                                                                      combustible liquids are permitted to exceed those specified in Sentence (1), but shall not
                                                                                                                      be greater than the supply for one day of normal operation.


                                                                                                    National Fire Code of Canada 2020                                                                       Division B 4-15
                                                                                                    4.2.8.3.                                                                                             Division B

                                                                                                                        3) Where larger quantities than those permitted by Sentence (2) are required, such
                                                                                                                      quantities shall be in storage tanks installed in conformance with Sentence 4.3.13.4.(2).

                                                                                                    4.2.8.3.          Handling
                                                                                                                         1) Areas in which flammable liquids or combustible liquids are transferred from one
                                                                                                                      container or storage tank to another, or where they are used in such a way as to release
                                                                                                                      potentially explosive concentrations of flammable vapours, shall be separated from
                                                                                                                      possible sources of ignition by a spatial separation of not less than 6 m, or by a fire
                                                                                                                      separation. (See Note A-4.2.8.3.(1).) (See also Note A-4.1.5.2.(1).)

                                                                                                    4.2.8.4.          General Storage Areas




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                                                                                                                          1) In a general storage area covered in Subsection 3.2.3., quantities of flammable
                                                                                                                      liquids and combustible liquids are permitted to exceed those in Sentence 4.2.8.2.(1),
                                                                                                                      provided the storage area is in conformance with Sentences (2) to (6).
                                                                                                                         2) The storage area referred to in Sentence (1) shall be sprinklered in conformance
                                                                                                                      with Article 3.2.3.3., providing a level of protection not less than that required for Class
                                                                                                                      IV commodities stored up to a height of 6 m.
                                                                                                                        3) The height of storage of flammable liquids and combustible liquids shall be not
                                                                                                                      more than that permitted for unprotected storage in Table 4.2.7.5.-A.
                                                                                                                         4) When a single class of liquid is stored, the total quantity in a single fire
                                                                                                                      compartment shall be not more than
                                                                                                                         a) 2 500 L of Class IB and IC liquids,
                                                                                                                         b) 5 000 L of Class II liquids, or
                                                                                                                         c) 10 000 L of Class IIIA liquids.
                                                                                                                         5) When 2 or more classes of liquid are stored in the same fire compartment, the
                                                                                                                      total quantity permitted for each class of liquid shall be calculated as follows:




                                                                                                                      where
                                                                                                                             qI = actual quantity of Class IB and IC liquids present,
                                                                                                                            qII = actual quantity of Class II liquids present, and
                                                                                                                          qIIIA = actual quantity of Class IIIA liquids present.
                                                                                                                         6) When 2 or more classes of liquid are stored in the same individual storage area,
                                                                                                                      the maximum quantity permitted in the individual storage area shall be that permitted
                                                                                                                      for the liquid with the lowest limit listed in Sentence (4).

                                                                                                    4.2.9.            Rooms for Container Storage and Dispensing
                                                                                                    4.2.9.1.          Maximum Quantities
                                                                                                                         1) Except as provided in Sentences (2) and (3), where flammable liquids and
                                                                                                                      combustible liquids are stored in a room required in this Part, the storage densities
                                                                                                                      averaged over the total room area and the total quantities of such liquids shall conform
                                                                                                                      to Table 4.2.9.1.

                                                                                                                                                           Table 4.2.9.1.
                                                                                                                                          Rooms for Container Storage and Dispensing
                                                                                                                                           Forming Part of Sentences 4.2.9.1.(1) and (2)

                                                                                                               Maximum Quantity, L             Minimum Fire Separation Around Room, h        Maximum Density, L/m2
                                                                                                                     10 000                                      2                                   200
                                                                                                                      1 500                                      1                                   100


                                                                                                    4-16 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                              4.2.10.3.

                                                                                                                          2) The maximum quantities and densities of flammable liquids and combustible
                                                                                                                      liquids shown in Table 4.2.9.1. are permitted to be doubled, provided the storage room
                                                                                                                      is protected by an automatic fire suppression system conforming to Article 4.2.7.6.
                                                                                                                          3) The maximum quantities of Class I liquids in an unprotected storage room with
                                                                                                                      a fire separation having a fire-resistance rating of not less than 2 h shall
                                                                                                                           a) not exceed those specified for unprotected storage in Table 4.2.7.5.-A, and
                                                                                                                           b) comply with Sentences 4.2.7.5.(3) and (4).

                                                                                                    4.2.9.2.          Spill Control
                                                                                                                        1) Storage rooms referred to in Article 4.2.9.1. shall be liquid-tight where the




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                                                                                                                      walls join the floor.

                                                                                                    4.2.9.3.          Aisles
                                                                                                                         1) The contents of flammable liquid and combustible liquid storage rooms referred to
                                                                                                                      in Article 4.2.9.1. shall be arranged to provide aisle widths of not less than 1 m.

                                                                                                    4.2.9.4.          Dispensing
                                                                                                                         1) Dispensing of flammable liquids or combustible liquids from containers having a
                                                                                                                      capacity of more than 30 L shall be by pumps or through self-closing valves designed
                                                                                                                      in conformance with good engineering practice. (See Note A-4.1.8.3.(1).)

                                                                                                    4.2.9.5.          Explosion Venting
                                                                                                                         1) Except for the storage of distilled beverage alcohol, where Class IA or IB liquids
                                                                                                                      are used, dispensed or stored in open containers within a storage room, or where
                                                                                                                      Class IA liquids are stored in containers exceeding 4 L in capacity, the room shall
                                                                                                                      be designed to prevent critical structural and mechanical damage from an internal
                                                                                                                      explosion in conformance with Sentence 3.3.6.4.(2) of Division B of the NBC. (See
                                                                                                                      Note A-3.2.8.2.(1)(d).)

                                                                                                    4.2.10.           Cabinets for Container Storage
                                                                                                    4.2.10.1.         Containers
                                                                                                                         1) Flammable liquids and combustible liquids stored in cabinets required in this Part
                                                                                                                      shall be in closed containers conforming to Article 4.2.3.1.

                                                                                                    4.2.10.2.         Maximum Quantity per Cabinet
                                                                                                                         1) The maximum quantity of flammable liquids and combustible liquids stored in
                                                                                                                      a cabinet shall be 500 L.

                                                                                                    4.2.10.3.         Maximum Quantity per Fire Compartment
                                                                                                                          1) Except as provided in Sentences (2) and (3), the total quantity of flammable
                                                                                                                      liquids and combustible liquids stored in cabinets in a single fire compartment shall not
                                                                                                                      exceed the quantity permitted in Article 4.2.10.2. for 3 cabinets.
                                                                                                                         2) In industrial occupancies, quantities of flammable liquids and combustible liquids
                                                                                                                      greater than those specified in Sentence (1) are permitted in a single fire compartment,
                                                                                                                      provided
                                                                                                                         a) the total quantity stored in a group of cabinets is not more than the quantity
                                                                                                                             permitted for 3 cabinets, and
                                                                                                                         b) the distance between groups of cabinets described in Clause (a) is not less
                                                                                                                             than 30 m.
                                                                                                                         3) In care, home-type care, treatment or detention occupancies, the total quantity of
                                                                                                                      flammable liquids and combustible liquids stored in cabinets in a single fire compartment
                                                                                                                      shall not exceed the quantity permitted for one cabinet.


                                                                                                    National Fire Code of Canada 2020                                                                        Division B 4-17
                                                                                                    4.2.10.4.                                                                                                        Division B

                                                                                                    4.2.10.4.             Labelling
                                                                                                                             1) Cabinets for container storage shall be labelled in conspicuous lettering to
                                                                                                                          indicate that the cabinet contains flammable materials and that open flames must
                                                                                                                          be kept away.

                                                                                                    4.2.10.5.             Fire Endurance
                                                                                                                             1) Storage cabinets required in this Part shall conform to ULC/ORD-C1275, “Guide
                                                                                                                          for the Investigation of Storage Cabinets for Flammable Liquid Containers.”

                                                                                                    4.2.10.6.             Ventilation




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                                                                                                                            1) Where a storage cabinet required in this Part is provided with ventilation
                                                                                                                          openings,
                                                                                                                             a) the ventilation openings shall be sealed with materials providing a fire
                                                                                                                                protection at least equivalent to that required for the construction of the
                                                                                                                                cabinet, or
                                                                                                                             b) the cabinet shall be vented outdoors using vent piping providing a fire
                                                                                                                                protection at least equivalent to that required in Clause (a) for seals.

                                                                                                    4.2.11.               Outdoor Container Storage
                                                                                                    4.2.11.1.             Quantities and Clearances
                                                                                                                              1) Except as provided in Sentence (2), the quantities and clearances for flammable
                                                                                                                          liquids and combustible liquids stored in containers in outdoor storage areas shall
                                                                                                                          conform to Table 4.2.11.1.

                                                                                                                                                               Table 4.2.11.1.
                                                                                                                                                         Outdoor Container Storage
                                                                                                                                                     Forming Part of Sentence 4.2.11.1.(1)

                                                                                                                                                                                                          Minimum Distance to a Property
                                                                                                                                                                            Minimum Distance between
                                                                                                                Class of Liquid        Maximum Total Quantity per Pile, L                                  Line or to a Building on the
                                                                                                                                                                                    Piles, m
                                                                                                                                                                                                                Same Property, m
                                                                                                     Class IA                                        5 000                            1.5                               6
                                                                                                     Class IB or IC                                 15 000                            1.5                               6
                                                                                                     Class II                                       35 000                            1.5                               6
                                                                                                     Class IIIA                                     85 000                            1.5                               6


                                                                                                                             2) The clearances required in Sentence (1) do not apply where not more than
                                                                                                                          5 000 L of flammable liquids or combustible liquids are stored adjacent to a building on
                                                                                                                          the same property, provided that either
                                                                                                                              a) the building is limited to 1 storey in building height and is used primarily for
                                                                                                                                 the storage or handling of flammable liquids or combustible liquids, or
                                                                                                                              b) the exposed wall has a fire-resistance rating of at least 2 h and has no openings
                                                                                                                                 within 3 m of such outdoor storage.

                                                                                                    4.2.11.2.             Mixed Storage
                                                                                                                             1) Where 2 or more liquids with different flash points are stored outdoors in
                                                                                                                          containers that form a single pile, the maximum total quantity permitted in the pile
                                                                                                                          shall be equal to that permitted for the liquid with the lowest flash point.

                                                                                                    4.2.11.3.             Fire Department Access
                                                                                                                             1) An access route not less than 6 m wide constructed in conformance with
                                                                                                                          Subsection 3.2.5. of Division B of the NBC shall be provided in outdoor storage areas to
                                                                                                                          permit the approach of fire department vehicles to within 60 m of any part of a pile.


                                                                                                    4-18 Division B                                                                                    National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                4.3.1.2.

                                                                                                    4.2.11.4.         Spill Control
                                                                                                                         1) Outdoor storage areas for flammable liquids or combustible liquids shall be
                                                                                                                      designed to accommodate possible spillage in conformance with Subsection 4.1.6.

                                                                                                    4.2.11.5.         Fencing
                                                                                                                          1) An outdoor area used for the container storage of flammable liquids or combustible
                                                                                                                      liquids shall be fenced in conformance with Article 3.3.2.6.

                                                                                                    4.2.12.           Self-Service Storage Buildings




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                                                                                                    4.2.12.1.         Application
                                                                                                                         1) This Subsection applies to the storage and handling of flammable liquids and
                                                                                                                      combustible liquids in self-service storage buildings within the scope of Section 3.9. of
                                                                                                                      Division B of the NBC.

                                                                                                    4.2.12.2.         Maximum Quantities
                                                                                                                         1) Not more than 50 L of flammable liquids and combustible liquids, of which not
                                                                                                                      more than 30 L shall be Class I liquids, are permitted to be stored in individual
                                                                                                                      self-service storage units.

                                                                                                    4.2.12.3.         Dispensing and Handling
                                                                                                                        1) Except within a dwelling unit, the dispensing and handling of flammable liquids
                                                                                                                      and combustible liquids shall not be permitted within self-service storage buildings.


                                                                                                    Section 4.3. Tank Storage
                                                                                                    4.3.1.            Design, Construction and Use of Storage Tanks
                                                                                                    4.3.1.1.          Application
                                                                                                                         1) This Section applies to storage tanks for flammable liquids and combustible liquids.

                                                                                                    4.3.1.2.          Atmospheric Storage Tanks
                                                                                                                         1) Except as permitted in Sentence (3) and in Section 4.10., atmospheric storage tanks
                                                                                                                      shall be built in conformance with the following:
                                                                                                                         a) except as provided in Sentence (2), API SPEC 12B, “Specification for Bolted
                                                                                                                              Tanks for Storage of Production Liquids,”
                                                                                                                         b) except as provided in Sentence (2), API SPEC 12D, “Specification for Field
                                                                                                                              Welded Tanks for Storage of Production Liquids,”
                                                                                                                         c) except as provided in Sentence (2), API SPEC 12F, “Specification for Shop
                                                                                                                              Welded Tanks for Storage of Production Liquids,”
                                                                                                                         d) API STD 650, “Welded Tanks for Oil Storage,”
                                                                                                                         e) CAN/ULC-S601, “Standard for Shop Fabricated Steel Aboveground Tanks
                                                                                                                              for Flammable and Combustible Liquids,”
                                                                                                                          f) CAN/ULC-S602, “Standard for Steel Aboveground Tanks for Fuel Oil and
                                                                                                                              Lubricating Oil,”
                                                                                                                         g) CAN/ULC-S603, “Standard for Steel Underground Tanks for Flammable
                                                                                                                              and Combustible Liquids,”
                                                                                                                         h) CAN/ULC-S603.1, “Standard for External Corrosion Protection Systems for
                                                                                                                              Steel Underground Tanks for Flammable and Combustible Liquids,”
                                                                                                                          i) CAN/ULC-S615, “Standard for Fibre Reinforced Plastic Underground Tanks
                                                                                                                              for Flammable and Combustible Liquids,”
                                                                                                                          j) CAN/ULC-S652, “Standard for Tank Assemblies for the Collection, Storage
                                                                                                                              and Removal of Used Oil,”
                                                                                                                         k) CAN/ULC-S653, “Standard for Aboveground Horizontal Steel Contained
                                                                                                                              Tank Assemblies for Flammable and Combustible Liquids,”


                                                                                                    National Fire Code of Canada 2020                                                                        Division B 4-19
                                                                                                    4.3.1.3.                                                                                            Division B

                                                                                                                         l) CAN/ULC-S655, “Standard for Aboveground Protected Tank Assemblies
                                                                                                                            for Flammable and Combustible Liquids,”
                                                                                                                        m) CAN/ULC-S677, “Standard for Fire Tested Aboveground Tank Assemblies
                                                                                                                            for Flammable and Combustible Liquids,” or
                                                                                                                        n) ANSI/CAN/UL/ULC 2258, “Standard for Aboveground Nonmetallic Tanks
                                                                                                                            for Fuel Oil and Other Combustible Liquids.”

                                                                                                                         2) Tanks built in conformance with Clause (1)(a), (b) or (c) shall be
                                                                                                                         a) used only for the storage of crude petroleum and oil field production
                                                                                                                            liquids, and
                                                                                                                         b) provided with emergency venting that (see Note A-4.3.1.2.(2)(b))
                                                                                                                                i) conforms to API STD 2000, “Venting Atmospheric and




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                                                                                                                                   Low-Pressure Storage Tanks,” and
                                                                                                                               ii) is compatible with the design features of the tank.

                                                                                                                         3) When necessitated by possible contamination of the liquid to be stored or
                                                                                                                      possible rapid corrosion of the tank, storage tanks need not conform to Sentence (1),
                                                                                                                      provided that they are designed and built in conformance with good engineering
                                                                                                                      practice for the material being used. (See Note A-4.3.1.2.(3).)

                                                                                                                         4) Atmospheric storage tanks shall not be used for the storage of flammable liquids or
                                                                                                                      combustible liquids at temperatures at or above their boiling points.

                                                                                                    4.3.1.3.          Low Pressure Storage Tanks and Pressure Vessels

                                                                                                                         1) Low pressure storage tanks shall be constructed in conformance with
                                                                                                                         a) API STD 620, “Design and Construction of Large, Welded, Low-Pressure
                                                                                                                            Storage Tanks,” or
                                                                                                                         b) ASME BPVC, “Boiler and Pressure Vessel Code.”

                                                                                                                         2) Pressure vessels shall be constructed in conformance with CSA B51, “Boiler,
                                                                                                                      pressure vessel, and pressure piping code.”

                                                                                                                         3) Low pressure storage tanks and pressure vessels are permitted to be used as
                                                                                                                      atmospheric storage tanks.

                                                                                                    4.3.1.4.          Operating Pressure

                                                                                                                         1) The normal operating pressure of a storage tank shall not exceed its design
                                                                                                                      pressure.

                                                                                                    4.3.1.5.          Corrosion Protection

                                                                                                                          1) Aboveground storage tanks and their integral fittings that are subject to
                                                                                                                      corrosion shall be protected by any means against exposure to conditions that would
                                                                                                                      initiate corrosion.

                                                                                                    4.3.1.6.          Floating Roofs

                                                                                                                          1) Except for perimeter sealing material, floating roof assemblies or internal
                                                                                                                      floating covers installed in storage tanks shall be constructed of metal or other materials
                                                                                                                      and designed in conformance with one of the tank construction standards listed
                                                                                                                      in this Subsection.

                                                                                                    4.3.1.7.          Identification

                                                                                                                         1) A storage tank and its filling and emptying connections shall be identified in
                                                                                                                      conformance with CFA 1990, “Using the Canadian Fuels Colour-Symbol System to
                                                                                                                      Mark Equipment and Vehicles For Product Identification.”


                                                                                                    4-20 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                              4.3.2.1.

                                                                                                    4.3.1.8.          Overfill Protection
                                                                                                                         1) Except as required in Sentences (2) and (3), a storage tank shall be prevented
                                                                                                                      from being overfilled by providing
                                                                                                                         a) continuous supervision of the filling operations by personnel qualified to
                                                                                                                            supervise such operations, or
                                                                                                                         b) an overfill protection device conforming to CAN/ULC-S661, “Standard for
                                                                                                                            Overfill Protection Devices for Flammable and Combustible Liquid Storage
                                                                                                                            Tanks” (see Note A-4.3.1.8.(1)(b)).
                                                                                                                         2) Except as provided in Sentence (3), tight-filled aboveground horizontal storage
                                                                                                                      tanks and underground storage tanks shall be prevented from being overfilled by




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                                                                                                                      providing a positive shut-off device conforming to CAN/ULC-S661, “Standard for
                                                                                                                      Overfill Protection Devices for Flammable and Combustible Liquid Storage Tanks.”
                                                                                                                      (See Note A-4.3.1.8.(2).)
                                                                                                                         3) Storage tanks that are filled remotely with used lubricating oil described in
                                                                                                                      Article 4.1.2.4. shall be prevented from being overfilled by providing an overfill
                                                                                                                      protection device in accordance with Clause (1)(b).

                                                                                                    4.3.1.9.          Installation and Use
                                                                                                                         1) Unless otherwise specified in this Code, a storage tank shall be installed and
                                                                                                                      used in conformance with the applicable installation and use provisions of the design
                                                                                                                      document to which the storage tank was built as required by this Section.

                                                                                                    4.3.1.10.         Reuse
                                                                                                                         1) A storage tank that has been taken out of service shall not be reused for the
                                                                                                                      storage of flammable liquids or combustible liquids unless it has been
                                                                                                                          a) refurbished so as to conform to one of the standards listed in
                                                                                                                             Sentence 4.3.1.2.(1),
                                                                                                                          b) refurbished so as to conform to CAN/ULC-S676, “Standard for Refurbishing
                                                                                                                             of Storage Tanks for Flammable and Combustible Liquids,” or
                                                                                                                          c) refurbished in conformance with Sentence (2) or (3).
                                                                                                                         2) A storage tank is permitted to be refurbished for aboveground use in
                                                                                                                      conformance with good engineering practice such as that described in
                                                                                                                         a) API STD 653, “Tank Inspection, Repair, Alteration, and Reconstruction,” and
                                                                                                                         b) STI/SPFA SP031, “Standard for Repair of Shop Fabricated Aboveground
                                                                                                                            Tanks for Storage of Flammable and Combustible Liquids.”
                                                                                                                         3) A storage tank is permitted to be refurbished for underground use in
                                                                                                                      conformance with good engineering practice such as that described in CAN/ULC-S669,
                                                                                                                      “Standard for Internal Retrofit Systems for Underground Tanks for Flammable and
                                                                                                                      Combustible Liquids.” (See Note A-4.3.1.10.(3).)
                                                                                                                         4) A riveted storage tank shall not be relocated.

                                                                                                    4.3.2.            Installation of Outside Aboveground Storage Tanks
                                                                                                    4.3.2.1.          Location
                                                                                                                         1) Every outside aboveground storage tank for the storage of flammable liquids or
                                                                                                                      combustible liquids shall be located in conformance with Sentences (2) to (5) with respect
                                                                                                                      to a property line or a building on the same property.
                                                                                                                         2) Except as provided in Sentences (6) and (7), every aboveground storage tank
                                                                                                                      containing stable liquids and having a working pressure of not more than 17 kPa
                                                                                                                      (gauge) shall be separated from a property line or a building on the same property by
                                                                                                                      distances
                                                                                                                          a) half those in Table 4.3.2.1., where protection is provided against fire or
                                                                                                                             explosion in the tank in conformance with Sentence 4.3.2.5.(2), or
                                                                                                                          b) equal to those in Table 4.3.2.1., where protection referred to in Clause (a)
                                                                                                                             is not provided.


                                                                                                    National Fire Code of Canada 2020                                                                     Division B 4-21
                                                                                                    4.3.2.2.                                                                                                        Division B

                                                                                                                                                           Table 4.3.2.1.
                                                                                                                                              Location of Aboveground Storage Tanks
                                                                                                                               Forming Part of Sentences 4.3.2.1.(2), (3) and (4), and 4.9.2.1.(2) and (3)

                                                                                                                                                                             Minimum Distance to a Property Line or to a Building
                                                                                                                       Maximum Tank Capacity, L
                                                                                                                                                                                         on the Same Property, m
                                                                                                                               250 000                                                                3
                                                                                                                               500 000                                                               4.5
                                                                                                                              2 500 000                                                               9
                                                                                                                              5 000 000                                                              12




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                                                                                                                            > 5 000 000                                                              15


                                                                                                                         3) Every aboveground storage tank containing unstable liquids and having a
                                                                                                                      working pressure of not more than 17 kPa (gauge) shall be separated from a property
                                                                                                                      line or a building on the same property by distances
                                                                                                                          a) equal to those in Table 4.3.2.1., but not less than 7.5 m, where protection
                                                                                                                              is provided against fire or explosion in the tank in conformance with
                                                                                                                              Sentence 4.3.2.5.(2), or
                                                                                                                          b) 3 times those in Table 4.3.2.1., but not less than 15 m, where protection
                                                                                                                              referred to in Clause (a) is not provided.
                                                                                                                         4) Every aboveground storage tank containing boil-over liquids shall be separated
                                                                                                                      from a property line or a building on the same property by distances
                                                                                                                         a) 0.75 times those in Table 4.3.2.1., where protection is provided against fire
                                                                                                                             or explosion in the tank in conformance with Sentence 4.3.2.5.(2), or
                                                                                                                         b) equal to those in Table 4.3.2.1., where protection referred to in Clause (a)
                                                                                                                             is not provided.
                                                                                                                      (See Note A-4.3.2.1.(4).)
                                                                                                                         5) Where a storage tank containing stable liquids or unstable liquids has a working
                                                                                                                      pressure greater than 17 kPa (gauge), the distances from a property line or a building on
                                                                                                                      the same property shall be those specified in Sentences (2) and (3) multiplied by 1.5,
                                                                                                                      but shall be not less than 7.5 m.
                                                                                                                         6) The minimum distance required in Sentence (2) from a storage tank containing
                                                                                                                      only Class II or IIIA liquids to a building on the same property is permitted to be
                                                                                                                      reduced to
                                                                                                                         a) 1.5 m provided the tank capacity is not more than 50 000 L, or
                                                                                                                         b) zero provided the tank capacity is not more than 2 500 L.
                                                                                                                         7) The minimum distance required in Sentence (2) is permitted to be waived,
                                                                                                                      provided the storage tank is in conformance with CAN/ULC-S655, “Standard for
                                                                                                                      Aboveground Protected Tank Assemblies for Flammable and Combustible Liquids.”
                                                                                                                         8) Where end failure of horizontal storage tanks may endanger adjacent property,
                                                                                                                      the tanks shall be placed with the longitudinal axis parallel to such property.

                                                                                                    4.3.2.2.          Spacing between Storage Tanks
                                                                                                                         1) Except as required in Sentences (2) and (3) and in Article 4.3.2.3., the minimum
                                                                                                                      distance between every combination of 2 aboveground storage tanks shall be 0.25 times
                                                                                                                      the sum of their diameters, but shall be not less than 1 m.
                                                                                                                         2) The minimum distance between any 2 storage tanks, neither of which has a
                                                                                                                      capacity of more than 250 000 L, shall be 1 m.
                                                                                                                         3) Where either of 2 aboveground storage tanks contains unstable liquids, the
                                                                                                                      distance required in Sentences (1) and (2) shall be doubled.

                                                                                                    4.3.2.3.          Clearances from Liquefied Petroleum Gas Cylinders and Tanks
                                                                                                                         1) The minimum separation between a flammable liquid or combustible liquid storage
                                                                                                                      tank and a liquefied petroleum gas cylinder or tank shall be 6 m.


                                                                                                    4-22 Division B                                                                                  National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                4.3.3.3.

                                                                                                                         2) Secondary containments for flammable liquid and combustible liquid storage tanks
                                                                                                                      shall not contain any liquefied petroleum gas cylinder or tank, and the centre line of
                                                                                                                      the secondary containment wall shall be not less than
                                                                                                                          a) 3 m away from a liquefied petroleum gas cylinder, and
                                                                                                                         b) 6 m away from a liquefied petroleum gas tank.

                                                                                                    4.3.2.4.          Fire Department Access
                                                                                                                         1) Except as provided in Sentences (2) and (3), storage tanks for flammable liquids or
                                                                                                                      combustible liquids shall be spaced so that each storage tank is accessible for firefighting
                                                                                                                      purposes.




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                                                                                                                          2) An access route constructed in conformance with Subsection 3.2.5. of Division B
                                                                                                                      of the NBC shall be provided in outdoor storage areas to permit the approach of fire
                                                                                                                      department vehicles to within 60 m travelling distance of any storage tank.
                                                                                                                         3) Where firefighting access to storage tanks containing Class I or II liquids is
                                                                                                                      not provided, fire extinguishing measures conforming to Sentence 4.3.2.5.(2) shall
                                                                                                                      be provided.

                                                                                                    4.3.2.5.          Fire Protection Systems
                                                                                                                      (See Note A-4.3.2.5.)
                                                                                                                         1) Where the diameter of a storage tank exceeds 45 m, the storage tank shall be
                                                                                                                      provided with protection against fires or explosions in conformance with Sentence (2).
                                                                                                                          2) Protection against fires or explosions required for a storage tank shall consist
                                                                                                                      of fixed protection systems designed in conformance with good engineering practice
                                                                                                                      such as that described in
                                                                                                                          a) NFPA 11, “Standard for Low-, Medium-, and High-Expansion Foam,”
                                                                                                                          b) NFPA 15, “Standard for Water Spray Fixed Systems for Fire Protection,” and
                                                                                                                           c) NFPA 69, “Standard on Explosion Prevention Systems.”

                                                                                                    4.3.3.            Supports, Foundations and Anchorage for Aboveground
                                                                                                                      Storage Tanks
                                                                                                    4.3.3.1.          Foundations and Supports
                                                                                                                        1) Storage tanks shall rest on the ground or on foundations, supports or piling
                                                                                                                      made of concrete, masonry or steel.
                                                                                                                         2) Tank supports shall be installed on firm foundations designed to minimize
                                                                                                                      uneven settling of the tank and to minimize corrosion of the part of the tank resting
                                                                                                                      on the foundation.
                                                                                                                         3) Where the clearance below the base of the tank exceeds 300 mm, tank supports
                                                                                                                      shall have a minimum fire-resistance rating of 2 h.
                                                                                                                         4) Every aboveground storage tank shall be supported in a manner that will prevent
                                                                                                                      the allowable design stress of the tank from being exceeded.

                                                                                                    4.3.3.2.          Earthquake Protection
                                                                                                                         1) In areas subject to earthquake forces, storage tanks, supports and connections
                                                                                                                      shall be designed to resist such forces in conformance with
                                                                                                                         a) Part 4 of Division B of the NBC, and
                                                                                                                         b) Appendix A2 of CAN/ULC-S601, “Standard for Shop Fabricated Steel
                                                                                                                              Aboveground Tanks for Flammable and Combustible Liquids.”

                                                                                                    4.3.3.3.          Protection against Flooding
                                                                                                                         1) When aboveground storage tanks are located in an area that is subject to
                                                                                                                      flooding, the tanks shall be securely anchored to prevent floating.


                                                                                                    National Fire Code of Canada 2020                                                                       Division B 4-23
                                                                                                    4.3.4.1.                                                                                          Division B

                                                                                                    4.3.4.            Normal and Emergency Venting for Aboveground Storage
                                                                                                                      Tanks
                                                                                                    4.3.4.1.          Design and Installation
                                                                                                                        1) Atmospheric and low pressure storage tanks shall be provided with normal and
                                                                                                                      emergency venting in conformance with
                                                                                                                        a) API STD 2000, “Venting Atmospheric and Low-Pressure Storage Tanks,” or
                                                                                                                        b) the tank design standards listed in Sentence 4.3.1.2.(1).

                                                                                                    4.3.4.2.          Unstable Liquids




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                                                                                                                         1) When unstable liquids are stored, the effects of heat or gas resulting from
                                                                                                                      polymerization, decomposition, condensation or self-reactivity shall be allowed for in
                                                                                                                      the determination of the total venting capacity.

                                                                                                    4.3.5.            Vent Piping for Aboveground Storage Tanks
                                                                                                    4.3.5.1.          Materials and Construction
                                                                                                                         1) Except at distilleries covered in Section 4.10., vent piping materials and
                                                                                                                      construction shall conform to Subsections 4.5.2., 4.5.3. and 4.5.5.

                                                                                                    4.3.5.2.          Location of Vent Pipe Outlets
                                                                                                                         1) Normal vent pipe outlets for storage tanks of Class I liquids
                                                                                                                         a) shall be located outside buildings not less than
                                                                                                                               i) 3.5 m above the adjacent ground level, and
                                                                                                                              ii) 1.5 m from any building opening, and
                                                                                                                         b) shall discharge so that flammable vapours will not enter the building or be
                                                                                                                            trapped near any part of the building.
                                                                                                                         2) Normal vent pipe outlets for storage tanks of Class II or IIIA liquids shall
                                                                                                                      discharge outside buildings not less than
                                                                                                                          a) 2 m above the adjacent ground level, and
                                                                                                                         b) 1.5 m from any building opening.
                                                                                                                         3) Emergency vent outlets for storage tanks shall discharge outside buildings not
                                                                                                                      less than 1.5 m from any building opening and from any combustible component of any
                                                                                                                      building's exterior wall.

                                                                                                    4.3.5.3.          Interconnection of Vent Piping
                                                                                                                          1) Except as provided in Sentence (2), 2 or more storage tanks are permitted to be
                                                                                                                      connected to a common vent pipe for normal relief venting, provided the vent pipe size
                                                                                                                      is designed to vent the combined vapours produced in the connected tanks without
                                                                                                                      exceeding the allowable stresses of the tanks.
                                                                                                                         2) Vent piping for storage tanks for Class I liquids shall not be connected to vent
                                                                                                                      piping for storage tanks for Class II or IIIA liquids, unless an effective arrangement is
                                                                                                                      provided to prevent the vapours from the Class I liquids from entering the other tanks.

                                                                                                    4.3.6.            Openings Other than Vents in Aboveground Storage Tanks
                                                                                                    4.3.6.1.          Provision of Valves
                                                                                                                         1) Each connection to an aboveground storage tank through which the liquid can
                                                                                                                      normally flow shall be provided with an internal or external shut-off valve located as
                                                                                                                      close as practical to the shell of the tank.
                                                                                                                         2) Each connection to an aboveground storage tank that is below the liquid level
                                                                                                                      and through which liquid does not normally flow shall be provided with a liquid-tight
                                                                                                                      closing device.


                                                                                                    4-24 Division B                                                                      National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                4.3.7.2.

                                                                                                    4.3.6.2.          Materials
                                                                                                                        1) Valves and their connections to a storage tank shall be made of steel, except that
                                                                                                                      when the chemical characteristics of the liquid stored are incompatible with steel,
                                                                                                                      materials other than steel are permitted to be used.
                                                                                                                         2) Materials for valves and their connections to a storage tank shall be suitable for
                                                                                                                      the pressures, stresses and temperatures that may be expected, including those of
                                                                                                                      possible fire exposure.

                                                                                                    4.3.6.3.          Openings for Liquid Level Measurements
                                                                                                                         1) Openings for measuring liquid levels in storage tanks for Class I liquids shall




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                                                                                                                      be equipped with caps or covers which shall be opened only when measuring the
                                                                                                                      liquid level.

                                                                                                    4.3.6.4.          Connections for Filling and Emptying
                                                                                                                         1) Except as provided in Sentence (3), connections used as part of normal
                                                                                                                      operating conditions for filling or emptying storage tanks for flammable liquids and
                                                                                                                      combustible liquids shall be located
                                                                                                                         a) outside buildings,
                                                                                                                         b) at a location free of sources of ignition, and
                                                                                                                         c) not less than 1.5 m away from building openings.
                                                                                                                         2) Connections for filling or emptying storage tanks shall be kept closed to prevent
                                                                                                                      leakage when not in use.
                                                                                                                         3) A filling connection described in Sentence (1) is permitted to be located inside a
                                                                                                                      building if
                                                                                                                          a) this is made necessary
                                                                                                                                  i) by a process or activity located indoors and to which the
                                                                                                                                     tank is directly associated, or
                                                                                                                                ii) for the collection of used liquids, and
                                                                                                                          b) the fill piping is provided with means to prevent flammable vapours from
                                                                                                                              returning to the building.
                                                                                                                         4) Connections for filling or emptying storage tanks shall be provided with a spill
                                                                                                                      containment device designed to catch, retain and provide for the evacuation of spilled
                                                                                                                      flammable liquids or combustible liquids in conformance with CAN/ULC-S663, “Standard
                                                                                                                      for Spill Containment Devices for Flammable and Combustible Liquid Aboveground
                                                                                                                      Storage Tanks.”

                                                                                                    4.3.7.            Secondary Containment for Aboveground Storage Tanks
                                                                                                    4.3.7.1.          General
                                                                                                                         1) The area surrounding a storage tank or group of storage tanks shall be designed
                                                                                                                      to accommodate accidental spillage in conformance with Subsection 4.1.6.
                                                                                                                         2) Where barriers described in Sentence 4.1.6.1.(1) are provided to contain
                                                                                                                      accidental spillage from aboveground storage tanks, they shall conform to the
                                                                                                                      requirements for secondary containment in this Subsection.
                                                                                                                         3) A storage tank conforming to Sentence 4.3.7.4.(2) shall be considered as
                                                                                                                      conforming to this Subsection provided it is used and maintained in conformance
                                                                                                                      with Articles 4.3.7.8. and 4.3.7.9.

                                                                                                    4.3.7.2.          Construction
                                                                                                                        1) The base and walls of a secondary containment shall be made of noncombustible
                                                                                                                      materials, and shall be designed, constructed and maintained to
                                                                                                                         a) withstand full hydrostatic head, and
                                                                                                                        b) provide a permeability of not more than 10-6 cm/s to the flammable liquids or
                                                                                                                             combustible liquids contained in the storage tanks.


                                                                                                    National Fire Code of Canada 2020                                                                        Division B 4-25
                                                                                                    4.3.7.3.                                                                                            Division B

                                                                                                                         2) A membrane providing the level of impermeability required in Clause (1)(b)
                                                                                                                      shall
                                                                                                                         a) conform to CAN/ULC-S668, “Standard for Liners Used for Secondary
                                                                                                                            Containment of Aboveground Flammable and Combustible Liquid Tanks,”
                                                                                                                            and
                                                                                                                         b) be installed in accordance with the manufacturer's instructions.
                                                                                                                         3) Except as provided in Sentence (4), openings shall not be permitted in a
                                                                                                                      secondary containment.
                                                                                                                         4) Where piping passes through a secondary containment, such passages shall
                                                                                                                      conform to Sentences (1) and (2).




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                                                                                                    4.3.7.3.          Capacity
                                                                                                                      (See Note A-4.1.6.1.(1).)
                                                                                                                         1) Except as permitted in Sentence (3), a secondary containment for a single storage
                                                                                                                      tank shall have a volumetric capacity of not less than 110% of the capacity of the tank.
                                                                                                                         2) Except as permitted in Sentence (3), a secondary containment for more than one
                                                                                                                      storage tank shall have a volumetric capacity of not less than the sum of
                                                                                                                          a) the capacity of the largest storage tank located in the contained space, and
                                                                                                                          b) 10% of the greater of
                                                                                                                                 i) the capacity specified in Clause (a), or
                                                                                                                                ii) the aggregate capacity of all other storage tanks located in
                                                                                                                                    the contained space.
                                                                                                                         3) When the secondary containment is designed to prevent the entry of
                                                                                                                      precipitation and water used for firefighting purposes into the contained space, it
                                                                                                                      shall have a volumetric capacity of not less than the capacity of the largest storage tank
                                                                                                                      located in the contained space.

                                                                                                    4.3.7.4.          Clearances
                                                                                                                         1) Except as provided in Sentence (2), no part of a secondary containment wall
                                                                                                                      shall be less than 1.5 m from a storage tank shell.
                                                                                                                         2) The distance required in Sentence (1) is permitted to be waived, provided
                                                                                                                      the storage tank
                                                                                                                          a) has a capacity of not more than 80 000 L and is constructed in accordance
                                                                                                                              with
                                                                                                                                 i) Clause 4.3.1.2.(1)(j), (k) or (m), incorporating secondary
                                                                                                                                    containment, or
                                                                                                                                ii) Clause 4.3.1.2.(1)(e) for double-walled storage tanks, or
                                                                                                                         b) conforms to CAN/ULC-S655, “Standard for Aboveground Protected Tank
                                                                                                                              Assemblies for Flammable and Combustible Liquids.”
                                                                                                                         3) Aboveground storage tanks shall be protected by posts or guardrails where they
                                                                                                                      are exposed to potential collision damage.

                                                                                                    4.3.7.5.          Access to Storage Tanks and Ancillary Equipment
                                                                                                                         1) A secondary containment shall permit
                                                                                                                         a) access to storage tanks, valves and ancillary equipment,
                                                                                                                         b) egress from the contained space, and
                                                                                                                          c) access for firefighting as specified in Article 4.3.2.4.
                                                                                                                      (See Note A-4.3.7.5.(1).)
                                                                                                                         2) Where a storage tank contains Class I liquids, provisions shall be made for the
                                                                                                                      normal operation of valves and for access to the storage tank roof without entering the
                                                                                                                      contained space created by the secondary containment where
                                                                                                                          a) the average height of the secondary containment exceeds 3.5 m, measured
                                                                                                                             from the ground level of the interior of the contained area, or
                                                                                                                         b) the distance between the tank shell and the top inside edge of the secondary
                                                                                                                             containment wall is less than the height of this wall.
                                                                                                                      (See Note A-4.3.7.5.(2).)


                                                                                                    4-26 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                             4.3.8.3.

                                                                                                    4.3.7.6.          Emergency Venting

                                                                                                                         1) Where the secondary containment is not open to the atmosphere, emergency
                                                                                                                      venting shall be provided to relieve any buildup of internal pressure in the contained
                                                                                                                      space when exposed to heat or fire.

                                                                                                    4.3.7.7.          Leak Detection

                                                                                                                         1) Where the contained space created by the secondary containment is not
                                                                                                                      accessible for an internal visual examination, and the secondary containment is not
                                                                                                                      sloped so as to permit liquid to flow to a specific location that can be monitored, a
                                                                                                                      monitoring device shall be provided to indicate the loss of integrity of the secondary




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                                                                                                                      containment.

                                                                                                    4.3.7.8.          Drainage

                                                                                                                         1) Liquids, debris and precipitation shall not accumulate in the contained space
                                                                                                                      created by the secondary containment.

                                                                                                                         2) Provisions shall be made for removing liquid from the secondary containment
                                                                                                                      in conformance with Subsection 4.1.6.

                                                                                                                         3)   Controls for the liquid removal system required in Sentence (2) shall be
                                                                                                                         a)   normally closed,
                                                                                                                         b)   accessible under fire exposure conditions, and
                                                                                                                         c)   located so they can be operated from outside the contained space.

                                                                                                    4.3.7.9.          Use of Secondary Containment

                                                                                                                         1) The contained space created by a secondary containment shall not be used for
                                                                                                                      storage purposes.

                                                                                                    4.3.8.            Installation of Underground Storage Tanks

                                                                                                    4.3.8.1.          Construction

                                                                                                                         1) Storage tanks installed underground shall be of double-walled construction and
                                                                                                                      shall be built in conformance with the underground storage tank standards identified in
                                                                                                                      Sentence 4.3.1.2.(1).

                                                                                                    4.3.8.2.          Location

                                                                                                                         1) Underground storage tanks shall be located so that loads from building
                                                                                                                      foundations and supports are not transmitted to the tank.

                                                                                                                         2) Underground storage tanks shall be separated by a horizontal distance of not
                                                                                                                      less than
                                                                                                                          a) 600 mm from adjacent underground tanks or structures,
                                                                                                                          b) 1 m from a building foundation or a street line, and
                                                                                                                          c) 1.5 m from other property lines.

                                                                                                    4.3.8.3.          Ground Cover

                                                                                                                         1) Except as required in Sentences (2) to (4), underground storage tanks shall be
                                                                                                                      installed with not less than 600 mm of ground cover over the tank.

                                                                                                                         2) Except as required in Sentence (3), storage tanks subjected to vehicular traffic
                                                                                                                      shall be installed not less than 1 m below finished ground level.

                                                                                                                         3) Either a 150 mm reinforced concrete slab or a 200 mm unreinforced concrete
                                                                                                                      slab over not less than 450 mm of sand is permitted in lieu of the protection described
                                                                                                                      in Sentence (2), provided the slab extends at least 300 mm beyond the storage tank.


                                                                                                    National Fire Code of Canada 2020                                                                    Division B 4-27
                                                                                                    4.3.8.4.                                                                                            Division B

                                                                                                                         4) Where subsurface conditions make it impracticable to install a storage tank
                                                                                                                      totally below adjacent ground level, an underground storage tank shall be installed
                                                                                                                      so that at least
                                                                                                                          a) 75% of its mass is below adjacent ground level, provided there is not less
                                                                                                                              than 600 mm of ground cover over the portion of the tank above adjacent
                                                                                                                              ground level, or
                                                                                                                          b) 50% of its mass is below adjacent ground level, provided there is not less
                                                                                                                              than 1 m of ground cover over the portion of the tank above adjacent
                                                                                                                              ground level.

                                                                                                    4.3.8.4.          Damage Repair




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                                                                                                                         1) Underground storage tanks that are in the process of being installed shall be
                                                                                                                      inspected, and any damage to the tank shell, protective coating, fittings or anodes shall
                                                                                                                      be repaired before they are lowered into the excavation.
                                                                                                                         2) Damage to storage tank shells shall not be repaired on site.

                                                                                                    4.3.8.5.          Damage Prevention
                                                                                                                          1) Underground storage tanks shall be lowered into the excavation by the use of
                                                                                                                      lifting lugs and hooks and, where necessary, spreader bars to prevent damage to the
                                                                                                                      tank shell, protective coating, fittings or anodes.
                                                                                                                          2) Any method of handling that might result in damage to the protective coating
                                                                                                                      of the tank shall not be used.

                                                                                                    4.3.8.6.          Installation
                                                                                                                         1) Underground steel storage tanks shall be installed in conformance with
                                                                                                                      Appendix A of CAN/ULC-S603.1, “Standard for External Corrosion Protection Systems
                                                                                                                      for Steel Underground Tanks for Flammable and Combustible Liquids.”
                                                                                                                         2) Underground reinforced plastic storage tanks shall be installed in conformance
                                                                                                                      with Appendix B of CAN/ULC-S615, “Standard for Fibre Reinforced Plastic
                                                                                                                      Underground Tanks for Flammable and Combustible Liquids.”
                                                                                                                         3) Underground storage tanks shall not be placed in direct contact with reinforced
                                                                                                                      concrete slabs but shall be separated by not less than 150 mm of sand or other suitable
                                                                                                                      material to evenly distribute the weight of the tank on the supporting base.

                                                                                                    4.3.8.7.          Filling
                                                                                                                         1) Flammable liquids or combustible liquids shall not be placed in an underground
                                                                                                                      storage tank until
                                                                                                                          a) the fill pipe and vent line have been installed in the tank, and
                                                                                                                          b) all other openings have been sealed.

                                                                                                    4.3.8.8.          Spillage
                                                                                                                         1) If a spillage occurs, the escaped liquid and all soil contaminated by the spill
                                                                                                                      shall be removed in conformance with Subsection 4.1.6.

                                                                                                    4.3.8.9.          Anchorage
                                                                                                                         1) Underground storage tanks shall be protected against hydrostatic forces which
                                                                                                                      can cause the uplift of the tanks once they are empty. (See Note A-4.3.8.9.(1).)
                                                                                                                          2) Where anchors and ground straps are used to resist the uplift forces referred
                                                                                                                      to in Sentence (1), they shall be
                                                                                                                          a) electrically isolated from the tank, and
                                                                                                                          b) installed in such a manner that they do not damage the tank's shell,
                                                                                                                              protective coating, fittings or anodes.


                                                                                                    4-28 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                           4.3.11.3.

                                                                                                    4.3.9.            Sumps
                                                                                                    4.3.9.1.          Installation
                                                                                                                         1) A dispenser sump shall be provided under a dispenser, unless the dispenser is
                                                                                                                      located on top of an aboveground storage tank.
                                                                                                                          2) A spill containment sump shall be provided at every underground storage tank
                                                                                                                      fill point.
                                                                                                                         3) A transition sump shall be provided for all mechanical pipe connections located
                                                                                                                      below grade.




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                                                                                                                         4) A turbine sump shall be provided for all turbine pump assemblies located below
                                                                                                                      grade or above grade where they are not readily visible.
                                                                                                                         5) In addition to the requirements of Article 4.3.9.2., the sumps referred to in
                                                                                                                      Sentences (1) to (4) shall be installed in conformance with the sump manufacturer's
                                                                                                                      instructions.

                                                                                                    4.3.9.2.          Construction
                                                                                                                         1) Sumps required by Article 4.3.9.1. shall be constructed in accordance with
                                                                                                                      CAN/ULC-S664, “Standard for Containment Sumps, Sump Fittings, and Accessories
                                                                                                                      for Flammable and Combustible Liquids.”

                                                                                                    4.3.9.3.          Leak Detection Monitoring
                                                                                                                         1) Where dispenser sumps, turbine sumps and transition sumps referred to in
                                                                                                                      Article 4.3.9.1. are used in underground applications, they shall be provided with an
                                                                                                                      electronic monitoring device to indicate the presence of liquid.

                                                                                                    4.3.10.           Corrosion Protection of Underground Steel Storage Tanks
                                                                                                    4.3.10.1.         Corrosion Protection
                                                                                                                         1) Underground steel storage tanks and integral fittings subject to corrosion shall be
                                                                                                                         a) protected in conformance with CAN/ULC-S603.1, “Standard for External
                                                                                                                            Corrosion Protection Systems for Steel Underground Tanks for Flammable
                                                                                                                            and Combustible Liquids,” or
                                                                                                                         b) protected by impressed current in conformance with NACE SP0285,
                                                                                                                            “Corrosion Control of Underground Storage Tank Systems by Cathodic
                                                                                                                            Protection.”

                                                                                                    4.3.11.           Vents for Underground Storage Tanks
                                                                                                    4.3.11.1.         Vent Design
                                                                                                                         1) Underground storage tanks shall be provided with vent openings and piping of
                                                                                                                      sufficient cross-sectional area designed to vent the tanks during the maximum filling
                                                                                                                      or withdrawal rate without causing the allowable stress for the tank to be exceeded.

                                                                                                    4.3.11.2.         Materials and Construction
                                                                                                                         1) Except at distilleries covered in Section 4.10., vent piping materials and
                                                                                                                      construction shall conform to Subsections 4.5.2., 4.5.3. and 4.5.5.

                                                                                                    4.3.11.3.         Installation
                                                                                                                         1) Vent pipe outlets from underground storage tanks for Class I liquids
                                                                                                                         a) shall be located outside buildings higher than the fill pipe openings but not
                                                                                                                            less than
                                                                                                                               i) 3.5 m above the adjacent ground level,


                                                                                                    National Fire Code of Canada 2020                                                                    Division B 4-29
                                                                                                    4.3.11.4.                                                                                           Division B

                                                                                                                              ii) 1.5 m from any building opening, and
                                                                                                                             iii) 7.5 m from any dispenser, and
                                                                                                                         b) shall discharge so that flammable vapours will not enter building openings
                                                                                                                            or be trapped near any part of the building.
                                                                                                                         2) Vent pipe outlets from underground storage tanks for Class II or IIIA liquids
                                                                                                                      shall be located outside buildings at a height that is above the fill pipe opening but not
                                                                                                                      less than 2 m above finished ground level.
                                                                                                                          3) Vent pipes from underground storage tanks for flammable liquids or combustible
                                                                                                                      liquids shall not be obstructed by any device that may cause excessive back pressure,
                                                                                                                      except that vent pipes from underground storage tanks for Class II or IIIA liquids are




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                                                                                                                      permitted to be fitted with return bends, coarse screens or other devices to minimize
                                                                                                                      the entry of foreign material.
                                                                                                                         4) Vent piping shall enter the storage tank through the top of the tank and shall not
                                                                                                                      extend into the tank more than 25 mm.
                                                                                                                         5) Vent piping shall be
                                                                                                                         a) installed so that any nominally horizontal run shall slope towards the
                                                                                                                            storage tank,
                                                                                                                         b) constructed without traps,
                                                                                                                         c) adequately supported to prevent sagging, and
                                                                                                                         d) where necessary, protected against mechanical damage.
                                                                                                                         6) Vent piping shall be tested for leaks at the commissioning stage in conformance
                                                                                                                      with Clause 4.4.1.2.(1)(a).

                                                                                                    4.3.11.4.         Interconnection of Vent Pipes
                                                                                                                         1) Except as permitted in Sentence (2), where vent piping connects 2 or more
                                                                                                                      storage tanks, pipe sizes shall be designed to vent the combined vapours produced in
                                                                                                                      the connected underground storage tanks without exceeding the allowable stresses of
                                                                                                                      the tanks when being filled simultaneously.
                                                                                                                         2) Where it is not possible to fill the connected storage tanks referred to in
                                                                                                                      Sentence (1) simultaneously, or where the connected vents have a vapour recovery
                                                                                                                      system, the vent piping shall be sized to accommodate the maximum vapour flow
                                                                                                                      possible in the system.
                                                                                                                         3) Vent piping for an underground storage tank containing a Class I liquid shall not
                                                                                                                      be connected to the vent piping for a storage tank containing a Class II or IIIA liquid,
                                                                                                                      unless an effective method is provided to prevent the vapours from the Class I liquid
                                                                                                                      storage tank from entering the other tank.

                                                                                                    4.3.12.           Openings Other than Vents in Underground Storage Tanks
                                                                                                    4.3.12.1.         Connections
                                                                                                                        1) Connections for all openings in underground storage tanks shall be liquid- and
                                                                                                                      vapour-tight.

                                                                                                    4.3.12.2.         Openings for Measuring Liquid Level
                                                                                                                         1) Openings for measuring liquid levels in underground storage tanks if
                                                                                                                      independent of the fill pipe shall be equipped with a vapour-tight cap or cover which
                                                                                                                      shall be opened only when measuring the liquid level.

                                                                                                    4.3.12.3.         Fill Piping and Discharge Piping
                                                                                                                         1) Fill piping and discharge piping shall enter underground storage tanks only
                                                                                                                      through the top of the tank and discharge piping used in suction systems shall be
                                                                                                                      sloped toward the storage tanks.
                                                                                                                         2) The fill point of an underground storage tank shall not be located higher than the
                                                                                                                      discharge point of the tank's vent.


                                                                                                    4-30 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                4.3.13.4.

                                                                                                                         3) Except as provided in Sentence (5), connections used as part of normal
                                                                                                                      operating conditions for filling or emptying storage tanks for flammable liquids and
                                                                                                                      combustible liquids shall be located
                                                                                                                         a) outside buildings,
                                                                                                                         b) at a location free of sources of ignition, and
                                                                                                                         c) not less than 1.5 m away from building openings.
                                                                                                                         4) Connections for filling or emptying storage tanks described in Sentence (3) shall
                                                                                                                      be kept closed to prevent leakage when not in use.
                                                                                                                         5) A filling connection described in Sentence (3) is permitted to be located inside a
                                                                                                                      building if




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                                                                                                                          a) this is made necessary
                                                                                                                                  i) by a process or activity located indoors and to which the
                                                                                                                                     storage tank is directly associated, or
                                                                                                                                ii) for the collection of used liquids, and
                                                                                                                          b) the fill piping is provided with means to prevent flammable vapours from
                                                                                                                              returning to the building.
                                                                                                                         6) If a fill piping system has an offset component from the fill point on the storage
                                                                                                                      tank, all fill pipes shall be
                                                                                                                          a) double-walled,
                                                                                                                         b) sloped to the storage tank, and
                                                                                                                          c) electronically monitored for leak detection in conformance with Section 4.4.
                                                                                                                      (See Note A-4.3.12.3.(6).)
                                                                                                                         7) Where the fill point is below the normal liquid level in the storage tank,
                                                                                                                         a) the fill line shall be equipped with a manual or automatic valve located at
                                                                                                                            the fill point to prevent spillage when the fill cap is removed, and
                                                                                                                         b) if the storage tank contains flammable liquids or combustible liquids, the fill line
                                                                                                                            drop tube shall be equipped with a method to prevent siphoning of the
                                                                                                                            tank's content should a leak occur in the fill line.

                                                                                                    4.3.13.           Installation of Storage Tanks inside Buildings
                                                                                                    4.3.13.1.         Occupancy
                                                                                                                         1) Except as provided in Article 4.3.13.2., storage tanks located inside buildings shall
                                                                                                                      conform to Subsections 4.3.13. to 4.3.15. and be permitted in
                                                                                                                         a) industrial occupancies, and
                                                                                                                         b) occupancies other than industrial occupancies where combustible liquids are
                                                                                                                            stored and used as fuel for oil-burning equipment, emergency generators
                                                                                                                            and fire pumps.

                                                                                                    4.3.13.2.         Stationary Combustion Engines
                                                                                                                         1) Installations using Class I liquids as fuel supplies for stationary engines inside
                                                                                                                      buildings shall conform to NFPA 37, “Standard for the Installation and Use of Stationary
                                                                                                                      Combustion Engines and Gas Turbines.”

                                                                                                    4.3.13.3.         Maximum Static Head
                                                                                                                         1) The static head imposed on a storage tank inside a building shall not exceed
                                                                                                                      70 kPa (gauge) at the bottom of the tank when the vent or fill pipe is filled with liquid
                                                                                                                      unless the tank is designed for greater pressures.

                                                                                                    4.3.13.4.         Maximum Quantities and Location
                                                                                                                         1) Except as provided in Subsection 4.2.8. and in Sentence (2), storage tanks for
                                                                                                                      flammable liquids or combustible liquids shall be
                                                                                                                          a) located in dedicated storage rooms conforming to Subsection 4.3.14., and
                                                                                                                          b) located in conformance with Tables 4.3.13.4.-A and 4.3.13.4.-B (see
                                                                                                                             Note A-4.3.13.4.(1)(b)).


                                                                                                    National Fire Code of Canada 2020                                                                          Division B 4-31
                                                                                                    4.3.13.5.                                                                                                                        Division B

                                                                                                                                                                  Table 4.3.13.4.-A
                                                                                                                                                  Indoor Tank Storage in Industrial Occupancies
                                                                                                                                            Forming Part of Sentences 4.3.13.4.(1) and (2), and 4.3.13.8.(1)

                                                                                                                                                                                                Maximum Quantity per Storage Room (1), L
                                                                                                                Class of Liquid                         Storage Level                                        One or More Tanks
                                                                                                                                                                                         Protected Storage (2)                Unprotected Storage
                                                                                                                                            First storey                                       40 000                                25 000
                                                                                                      Class I                               Storeys above the first storey                      7 500                            Not permitted
                                                                                                                                            Basement                                        Not permitted                        Not permitted




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                                                                                                                                            First storey                                       200 000                              100 000
                                                                                                      Classes II and IIIA                   Storeys above the first storey                     20 000                            Not permitted
                                                                                                                                            Basement                                           20 000                            Not permitted

                                                                                                    Notes to Table 4.3.13.4.-A:
                                                                                                    (1)   See Subsection 4.3.14.
                                                                                                    (2)   See Article 4.2.7.6.


                                                                                                                                                             Table 4.3.13.4.-B
                                                                                                                Indoor Tank Storage in Occupancies Using Oil-Burning Equipment, Emergency Generators and Fire Pumps
                                                                                                                                       Forming Part of Sentences 4.3.13.4.(1) and 4.3.13.5.(1) and (2)

                                                                                                                                                                                                Quantity per Protected Storage Room (1), L
                                                                                                                Class of Liquid                         Storage Level
                                                                                                                                                                                           Individual Tank                         Aggregate
                                                                                                                                                                                              > 2 500 (3)
                                                                                                                                            First storey (2)                                                                        200 000
                                                                                                                                                                                             > 20 000 (4)
                                                                                                     Classes II and IIIA
                                                                                                                                            Basement and storeys above the                    > 2 500 (3)                            20 000
                                                                                                                                            first storey                                     > 20 000 (4)                            45 000

                                                                                                    Notes to Table 4.3.13.4.-B:
                                                                                                    (1)   See Article 4.2.7.6.
                                                                                                    (2)   For industrial occupancies where the tanks are located in a separate storage room from the equipment, refer to Table 4.3.13.4.-A.
                                                                                                    (3)   See Sentence 4.3.13.5.(1).
                                                                                                    (4)   See Sentence 4.3.13.5.(2).


                                                                                                                                2) When quantities greater than those permitted for incidental use in
                                                                                                                            Subsection 4.2.8. are required for special process operations, storage tanks for flammable
                                                                                                                            liquids or combustible liquids are permitted to be located outside of a storage room
                                                                                                                            referred to in Sentence (1), provided that
                                                                                                                                a) total quantities per fire compartment are not more than one-half the quantities
                                                                                                                                    permitted in Table 4.3.13.4.-A,
                                                                                                                                b) they are located on the first storey, and
                                                                                                                                c) the installation conforms to Articles 4.3.13.9. to 4.3.13.12.

                                                                                                    4.3.13.5.               Storage Tank Construction

                                                                                                                               1) Storage tanks with an individual capacity exceeding 2 500 L but not exceeding
                                                                                                                            20 000 L that are used in conformance with Table 4.3.13.4.-B shall be
                                                                                                                                a) of double-walled construction in conformance with Clause 4.3.1.2.(1)(e) or a
                                                                                                                                   minimum of 300 deg. secondarily contained construction, and
                                                                                                                                b) monitored for leakage in conformance with Sentence 4.4.2.1.(7).

                                                                                                                               2) Storage tanks with an individual capacity exceeding 20 000 L that are used in
                                                                                                                            conformance with Table 4.3.13.4.-B shall
                                                                                                                               a) conform to Clause 4.3.1.2.(1)(l), and
                                                                                                                               b) be monitored for leakage in conformance with Sentence 4.4.2.1.(7).


                                                                                                    4-32 Division B                                                                                                 National Fire Code of Canada 2020
                                                                                                    Division B                                                                                             4.3.13.12.

                                                                                                    4.3.13.6.         Piping Systems

                                                                                                                          1) Piping systems serving oil-burning equipment, diesel-engine-driven emergency
                                                                                                                      generators and fire pumps shall conform to CSA B139 Series, “Installation code for
                                                                                                                      oil-burning equipment.”

                                                                                                    4.3.13.7.         Fire Compartments

                                                                                                                         1) Fire compartments regulated by this Subsection shall be separated from the
                                                                                                                      remainder of the building by a fire separation having a fire-resistance rating of not less
                                                                                                                      than 2 h.




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                                                                                                    4.3.13.8.         Mixed Storage

                                                                                                                          1) When 2 or more classes of liquids are stored in a single storage room referred
                                                                                                                      to in Sentence 4.3.13.4.(1), the total quantity permitted for each class of liquid shall
                                                                                                                      be calculated as follows:




                                                                                                                      where
                                                                                                                               qI = actual quantity of Class I liquids present,
                                                                                                                       qII + IIIA = actual quantity of Class II and IIIA liquids present,
                                                                                                                              QI = maximum quantity of Class I liquids permitted in Table 4.3.13.4.-A, and
                                                                                                                       QII + IIIA = maximum quantity of Class II and IIIA liquids permitted in Table 4.3.13.4.-A.

                                                                                                    4.3.13.9.         Storage Tanks outside Storage Rooms

                                                                                                                         1) Where storage tanks for flammable liquids or combustible liquids are located outside
                                                                                                                      of storage rooms conforming to Subsection 4.3.14.,
                                                                                                                          a) provision shall be made to contain a spill equal to at least 100% of the
                                                                                                                              volume of the largest storage tank, or to drain away spilled flammable liquids
                                                                                                                              or combustible liquids, and
                                                                                                                          b) the area in which the storage tanks are located shall be ventilated (see
                                                                                                                              Note A-4.3.13.9.(1)(b)).

                                                                                                    4.3.13.10.        Vents

                                                                                                                         1) Except as provided in Sentence (2), normal and emergency vents for storage
                                                                                                                      tanks in buildings shall be provided in conformance with Subsections 4.3.4. and 4.3.5.
                                                                                                                      (See Note A-4.3.13.10.(1).)

                                                                                                                         2) The use of weak roof-to-side shell seams, designed to rupture before the
                                                                                                                      allowable design stress of the storage tank is reached, shall not be permitted as a means
                                                                                                                      of emergency venting of storage tanks inside buildings.

                                                                                                    4.3.13.11.        Supports, Foundations and Anchorage

                                                                                                                         1) Except as provided in Sentence (2), where storage tanks for flammable liquids
                                                                                                                      or combustible liquids are installed inside buildings, the supports, foundations and
                                                                                                                      anchorage for such storage tanks shall be in conformance with Subsection 4.3.3.

                                                                                                                         2) Where a storage tank is suspended, rather than supported on a foundation,
                                                                                                                      supports shall be designed and installed in conformance with good engineering
                                                                                                                      practice. (See Note A-4.3.13.11.(2).)

                                                                                                    4.3.13.12.        Bonding and Grounding

                                                                                                                         1) Where storage tanks for flammable liquids or combustible liquids are installed inside
                                                                                                                      buildings, tanks, piping and discharge equipment shall be bonded and grounded.


                                                                                                    National Fire Code of Canada 2020                                                                         Division B 4-33
                                                                                                    4.3.14.1.                                                                                            Division B

                                                                                                    4.3.14.           Rooms for Storage Tanks
                                                                                                    4.3.14.1.         Design and Construction
                                                                                                                         1) Rooms for storage tanks inside buildings, referred to in Sentence 4.3.13.4.(1),
                                                                                                                      shall be
                                                                                                                         a) separated from the rest of the building by a fire separation having a
                                                                                                                              fire-resistance rating of at least 2 h,
                                                                                                                         b) designed to contain a spill equal to at least 100% of the volume of the largest
                                                                                                                              storage tank, or to drain away spilled flammable liquids or combustible liquids,
                                                                                                                         c) made liquid-tight where the walls join the floor, and
                                                                                                                         d) used for no other purposes than the storage and handling of flammable




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                                                                                                                              liquids or combustible liquids.

                                                                                                    4.3.14.2.         Clearances
                                                                                                                         1) A minimum clear space of 550 mm shall be maintained between the walls of a
                                                                                                                      room described in Article 4.3.14.1. and the sides of any storage tanks within the room.

                                                                                                    4.3.14.3.         Explosion Venting
                                                                                                                         1) Where Class IA or IB liquids are dispensed within a storage room, the room
                                                                                                                      shall be designed to prevent critical structural and mechanical damage from an
                                                                                                                      internal explosion in conformance with NFPA 68, “Standard on Explosion Protection
                                                                                                                      by Deflagration Venting.” (See Note A-3.2.8.2.(1)(d).)

                                                                                                    4.3.14.4.         Placards
                                                                                                                         1) Placards conforming to Article 3.2.7.14. that identify the liquids stored as
                                                                                                                      flammable liquids or combustible liquids and the capacities of the storage tanks shall be
                                                                                                                      posted in a conspicuous location outside of the room.

                                                                                                    4.3.15.           Openings Other than Vents in Storage Tanks inside
                                                                                                                      Buildings
                                                                                                    4.3.15.1.         Connections
                                                                                                                        1) Connections for all openings in storage tanks in buildings shall be liquid- and
                                                                                                                      vapour-tight.
                                                                                                                         2) Connections to storage tanks through which liquid can flow shall be provided
                                                                                                                      with valves located as close as practicable to the tank.
                                                                                                                         3) Connections for filling or emptying storage tanks shall be provided with a spill
                                                                                                                      containment device in accordance with Sentence 4.3.6.4.(4).

                                                                                                    4.3.15.2.         Openings for Liquid Level Measurement
                                                                                                                         1) Openings that are independent of the fill pipe and are used for measuring the
                                                                                                                      liquid level in storage tanks containing Class I or II liquids shall be equipped with a
                                                                                                                      vapour-tight cap which shall be opened only when measuring the liquid level.
                                                                                                                         2) Openings referred to in Sentence (1) shall be protected against overflow and
                                                                                                                      vapour pressure by means of a spring-loaded check valve.

                                                                                                    4.3.16.           Out of Service
                                                                                                    4.3.16.1.         Underground Storage Tanks
                                                                                                                         1) The removal, abandonment in place, disposal or temporary taking out of
                                                                                                                      service of an underground storage tank shall be in conformance with good engineering
                                                                                                                      practice. (See Note A-4.3.16.1.(1).)


                                                                                                    4-34 Division B                                                                         National Fire Code of Canada 2020
                                                                                                    Division B                                                                                            4.4.1.2.

                                                                                                    4.3.16.2.         Aboveground Storage Tanks
                                                                                                                         1) When an aboveground storage tank will be out of service or unsupervised for
                                                                                                                      a period not exceeding 180 days, the piping from the tank shall be capped or the
                                                                                                                      valves that are necessary to achieve similar isolation of the tank shall be closed and
                                                                                                                      securely locked.
                                                                                                                         2) Where a storage tank referred to in Sentence (1) contains flammable liquids or
                                                                                                                      combustible liquids, the liquid level in the tank shall be measured and compared with
                                                                                                                      subsequent readings taken at intervals not greater than one month.
                                                                                                                         3) When an aboveground storage tank will be out of service or unsupervised for a
                                                                                                                      period exceeding 180 days, all liquid and vapours shall be removed from the storage




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                                                                                                                      tank and its connected piping.

                                                                                                    4.3.16.3.         Disposal
                                                                                                                         1) When a storage tank is to be permanently disposed of, sufficient openings shall
                                                                                                                      be cut in the tank to render it unfit for further use.

                                                                                                    4.3.16.4.         Underground Piping Systems
                                                                                                                         1) The removal, abandonment in place, disposal or temporary taking out of service
                                                                                                                      of an underground piping system shall be in conformance with good engineering
                                                                                                                      practice. (See Note A-4.3.16.1.(1).)


                                                                                                    Section 4.4. Leak Detection of Storage Tanks and
                                                                                                    Piping Systems
                                                                                                    4.4.1.            General
                                                                                                    4.4.1.1.          Application
                                                                                                                         1) Except as provided in Sentence (2) and except as otherwise specified in this
                                                                                                                      Code, this Section provides the minimum requirements regarding the detection of
                                                                                                                      leaks in aboveground and underground storage tanks, piping systems and sumps.
                                                                                                                         2) This Section shall not apply to storage tanks that have been taken out of service
                                                                                                                      in compliance with the applicable provisions of Subsection 4.3.16.

                                                                                                    4.4.1.2.          Frequency and Methods of Leak Detection Testing and Monitoring
                                                                                                                          1) Every storage tank, piping system and sump, including those at fuel-dispensing
                                                                                                                      stations, shall be tested and monitored for leaks in conformance with Tables 4.4.1.2.-A
                                                                                                                      to 4.4.1.2.-E, which establish the minimum requirements regarding the frequency and
                                                                                                                      methods to be used for
                                                                                                                          a) commissioning testing,
                                                                                                                          b) subsequent in-service monitoring, and
                                                                                                                          c) testing when a leak is suspected.
                                                                                                                      (See Note A-4.4.1.2.(1).)
                                                                                                                         2) The methods referred to in Sentence (1) shall conform to Subsections 4.4.2.
                                                                                                                      to 4.4.4.
                                                                                                                         3) The commissioning testing referred to in Sentence (1) shall be performed at
                                                                                                                      the time of installation
                                                                                                                          a) once backfill and surfacing have been completed but before being put into
                                                                                                                             service, in the case of an underground storage tank or underground piping
                                                                                                                             system,
                                                                                                                         b) before being put into service, in the case of an aboveground storage tank or
                                                                                                                             exposed piping system, and
                                                                                                                          c) once the final surface materials have been installed but before being put
                                                                                                                             into service, in the case of a sump.


                                                                                                    National Fire Code of Canada 2020                                                                    Division B 4-35
                                                                                                    4.4.1.2.                                                                                                                           Division B

                                                                                                                               4) The frequency of the in-service monitoring referred to in Sentence (1) shall be
                                                                                                                            calculated from the date of the commissioning test.
                                                                                                                               5) Immediate action shall be taken when a leak is suspected and the leak detection
                                                                                                                            testing referred to in Sentence (1) shall be performed if
                                                                                                                                a) a loss of liquid or a gain of water is indicated by any of the leak detection
                                                                                                                                    measures described in this Section, or
                                                                                                                                b) the level of water at the bottom of an underground storage tank exceeds
                                                                                                                                    50 mm.
                                                                                                                               6) Where dispenser sumps, transition sumps and turbine sumps are provided with
                                                                                                                            electronic monitoring devices in accordance with Sentence 4.3.9.3.(1), the devices shall




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                                                                                                                            be interlocked with the dispenser or pump to shut it down upon detection of either
                                                                                                                            product or a high liquid level.
                                                                                                                               7) The minimum requirements referred to in Sentence (1) shall not preclude the
                                                                                                                            appropriate use of alternative solutions, innovative new technologies, or methods
                                                                                                                            capable of achieving the same objectives. (See Note A-4.4.1.2.(7).)

                                                                                                                                                                  Table 4.4.1.2.-A
                                                                                                                                       Leak Detection Testing and Monitoring of Underground Storage Tanks
                                                                                                                                                Forming Part of Sentences 4.4.1.2.(1) and 4.4.2.1.(5)

                                                                                                                                                                                      In-Service Monitoring
                                                                                                          Type of Containment            Commissioning Test                                                                            Leak Suspected
                                                                                                                                                                            Continuous                        Periodic
                                                                                                                                                                                                  Precision Leak Detection
                                                                                                                                                                    Inventory Reconciliation
                                                                                                                                                                                                  Test every 2 years
                                                                                                                                                                    Inventory Reconciliation
                                                                                                                                                                    and Monitoring Wells          Precision Leak Detection
                                                                                                                                                                                                  Test every 5 years             Precision Leak Detection
                                                                                                     Single-walled (1)               Not applicable (2)             Statistical Inventory
                                                                                                                                                                                                                                 Test
                                                                                                                                                                    Reconciliation (SIR)
                                                                                                                                                                    Automatic Tank Gauge
                                                                                                                                                                    Continuous In-Tank Leak       None required
                                                                                                                                                                    Detection
                                                                                                                                     Precision Leak Detection                                                                    Precision Leak Detection
                                                                                                                                                                    Secondary Containment
                                                                                                     Double-walled (3)               Test or Secondary                                            None required                  Test or Secondary
                                                                                                                                                                    Monitoring
                                                                                                                                     Containment Test (4)                                                                        Containment Test (4)

                                                                                                    Notes to Table 4.4.1.2.-A:
                                                                                                    (1)   Applies to single-walled storage tanks of typical construction, including storage tanks that do not meet the requirements for double-walled
                                                                                                          storage tanks.
                                                                                                    (2)   Not applicable because underground storage tanks must be of double-walled construction as per Sentence 4.3.8.1.(1).
                                                                                                    (3)   Applies to double-walled storage tanks, which have an interstitial space that allows for monitoring using high- or low-tech methods.
                                                                                                    (4)   The Secondary Containment Test is a precision test capable of detecting leaks in the interstitial space of the storage tank. Risers, connections and
                                                                                                          vents are also susceptible to leakage and must therefore also be precision-tested.


                                                                                                                                                                 Table 4.4.1.2.-B
                                                                                                                                       Leak Detection Testing and Monitoring of Aboveground Storage Tanks
                                                                                                                                                        Forming Part of Sentence 4.4.1.2.(1)

                                                                                                                                                                                      In-Service Monitoring
                                                                                                          Type of Containment (1)        Commissioning Test                                                                            Leak Suspected
                                                                                                                                                                            Continuous                        Periodic
                                                                                                                                                                                                  API STD 653 or
                                                                                                     Contained open (2)              Visual inspection (3) during                                                                API STD 653 or
                                                                                                                                                                    Inventory Reconciliation      Tank floor inspection every
                                                                                                     vertical tank                   Liquid Media Test                                                                           Tank floor inspection
                                                                                                                                                                    and Secondary                 10 years
                                                                                                     Contained open (2)              Visual inspection (3) during   Containment Monitoring
                                                                                                                                                                                                  None required                  Visual inspection (3)
                                                                                                     horizontal tank                 Liquid Media Test
                                                                                                                                                                    Secondary Containment                                        Secondary Containment
                                                                                                     Double-walled (4)               Visual inspection (3)                                        None required
                                                                                                                                                                    Monitoring                                                   Test


                                                                                                    4-36 Division B                                                                                                      National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                                 4.4.1.2.

                                                                                                                                                                 Table 4.4.1.2.-B (Continued)

                                                                                                    Notes to Table 4.4.1.2.-B:
                                                                                                    (1)   See Subsection 4.3.7.
                                                                                                    (2)   Applies to storage tanks contained in an open arrangement that do not meet the requirements for double-walled storage tanks.
                                                                                                    (3)   Visual leak detection may apply to single- or double-walled storage tanks and piping. See Sentence 4.4.2.1.(8).
                                                                                                    (4)   Applies to double-walled storage tanks, which have an interstitial space that allows for monitoring using high- or low-tech methods.


                                                                                                                                                                 Table 4.4.1.2.-C
                                                                                                                                      Leak Detection Testing and Monitoring of Underground Piping Systems
                                                                                                                                                       Forming Part of Sentence 4.4.1.2.(1)




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                                                                                                                                                                                       In-Service Monitoring
                                                                                                          Type of Containment            Commissioning Test                                                                             Leak Suspected
                                                                                                                                                                            Continuous                       Periodic
                                                                                                                                                                                                   Pipe Leak Detection Test (4)
                                                                                                                                                                   Inventory Reconciliation        every 2 years (annually for
                                                                                                                                                                                                   mechanical connections)
                                                                                                                                                                   Inventory Reconciliation
                                                                                                                                                                   and Monitoring Wells            Pipe Leak Detection Test (4)
                                                                                                                                                                                                   every 5 years (annually for
                                                                                                                                                                   SIR
                                                                                                     Single-walled (1) and                                                                         mechanical connections)
                                                                                                     single-walled, buried                                         Single Check Valve (5)
                                                                                                                                     Not applicable (3)                                                                           Pipe Leak Detection Test (4)
                                                                                                     mechanical threaded                                           Electronic Line Leak
                                                                                                                                                                                                   Electronic Line Leak
                                                                                                     connections (2)                                               Detection (with a
                                                                                                                                                                                                   Detection (with a detectable
                                                                                                                                                                   detectable limit of 0.76 L/h
                                                                                                                                                                                                   limit of 0.38 L/h annually)
                                                                                                                                                                   monthly)
                                                                                                                                                                   Continuous Electronic Line      Continuous Electronic Line
                                                                                                                                                                   and Tank Leak Detection         and Tank Leak Detection
                                                                                                                                                                   (with a detectable limit of     (with a detectable limit of
                                                                                                                                                                   0.76 L/h monthly)               0.38 L/h annually)
                                                                                                                                     Pipe Leak Detection                                                                          Pipe Leak Detection Test (4)
                                                                                                                                                                   Secondary Containment
                                                                                                     Double-walled (6)               Test and Secondary                                            None required                  or Secondary Containment
                                                                                                                                                                   Monitoring
                                                                                                                                     Containment Test (7)                                                                         Test (7)

                                                                                                    Notes to Table 4.4.1.2.-C:
                                                                                                    (1)   Applies to single-walled piping systems of typical construction, including piping systems that do not meet the requirements for double-walled
                                                                                                          piping systems.
                                                                                                    (2)   See Article 4.5.5.6.
                                                                                                    (3)   Not applicable because underground piping systems must be of double-walled construction as per Sentence 4.5.6.1.(1).
                                                                                                    (4)   The Pipe Leak Detection Test results shall conform to Sentence 4.4.3.4.(9) with a probability of detection of 0.95 or greater and a probability
                                                                                                          of false alarm of 0.05 or less.
                                                                                                    (5)   Applies to suction line only.
                                                                                                    (6)   Applies to double-walled piping systems, which have an interstitial space that allows for monitoring using high- or low-tech methods. Monitoring
                                                                                                          of the sump using high-tech methods in accordance with Table 4.4.1.2.-E is considered as meeting the requirements for monitoring of an
                                                                                                          open-draining interstitial space of double-walled piping.
                                                                                                    (7)   The Secondary Containment Test shall conform to Article 4.4.3.3.


                                                                                                                                                                  Table 4.4.1.2.-D
                                                                                                                                         Leak Detection Testing and Monitoring of Exposed Piping Systems
                                                                                                                                                        Forming Part of Sentence 4.4.1.2.(1)

                                                                                                                                                                                        In-Service Monitoring
                                                                                                          Type of Containment            Commissioning Test                                                                             Leak Suspected
                                                                                                                                                                             Continuous                         Periodic
                                                                                                     Single-walled (1)                                                                             None required
                                                                                                     Flexible hose lines over                                       Visual inspection (2)          Pipe Leak Detection Test (3)   Identify and repair
                                                                                                     water                                                                                         every 12 months
                                                                                                                                     Pipe Leak Detection Test
                                                                                                                                                                    Secondary Containment
                                                                                                     Double-walled (4)                                                                             None required                  Identify and repair
                                                                                                                                                                    Monitoring
                                                                                                     Contained open (5)                                             Visual inspection (2)          None required                  Identify and repair


                                                                                                    National Fire Code of Canada 2020                                                                                                        Division B 4-37
                                                                                                    4.4.1.3.                                                                                                                          Division B

                                                                                                                                                                Table 4.4.1.2.-D (Continued)

                                                                                                    Notes to Table 4.4.1.2.-D:
                                                                                                    (1)   Applies to single-walled piping systems of typical construction, including piping systems that do not meet the requirements for double-walled or
                                                                                                          contained open piping systems.
                                                                                                    (2)   See Sentence 4.4.2.1.(8).
                                                                                                    (3)   The Pipe Leak Detection Test results shall conform to Sentence 4.4.3.4.(9) with a probability of detection of 0.95 or greater and a probability
                                                                                                          of false alarm of 0.05 or less.
                                                                                                    (4)   Applies to double-walled piping systems with an interstitial space contiguous to the primary containment that can be monitored using high-
                                                                                                          or low-tech methods.
                                                                                                    (5)   Applies to piping systems contained in an open arrangement that do not meet the requirements for double-walled piping systems and do not




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                                                                                                          conform to Subsection 4.3.7.


                                                                                                                                                             Table 4.4.1.2.-E
                                                                                                                   Leak Detection Testing and Monitoring of Turbine, Transition, Dispenser and Spill Containment Sumps
                                                                                                                                                   Forming Part of Sentence 4.4.1.2.(1)

                                                                                                                                                                                     In-Service Monitoring
                                                                                                          Type of Containment            Commissioning Test                                                                           Leak Suspected
                                                                                                                                                                           Continuous                        Periodic
                                                                                                     Dispenser, turbine and                                        Weekly visual inspection or
                                                                                                     transition sumps                Static Liquid Media Leak      electronic monitoring (2)
                                                                                                                                                                                                  Annual visual inspection (3)       Identify and repair
                                                                                                                                     Detection Test (1)            Weekly visual inspection at
                                                                                                     Spill containment sumps
                                                                                                                                                                   fill point

                                                                                                    Notes to Table 4.4.1.2.-E:
                                                                                                    (1)   See Article 4.4.3.5.
                                                                                                    (2)   Electronic monitoring devices need to be tested at least once annually in conformance with the manufacturer's recommendations.
                                                                                                    (3)   See Note A-4.4.1.2.(1).


                                                                                                    4.4.1.3.               Remedial Action

                                                                                                                              1) Except as provided in Sentence (2), when a leak detection test required by this
                                                                                                                           Section detects a leak in a storage tank, piping system or sump, the leaking components
                                                                                                                           or system shall be
                                                                                                                               a) repaired and tested,
                                                                                                                               b) replaced, or
                                                                                                                               c) removed.

                                                                                                                              2) When a leak detection test required by this Section detects a leak in a
                                                                                                                           single-walled construction underground storage tank or piping system, the leaking
                                                                                                                           components or system shall be
                                                                                                                              a) replaced in conformance with Articles 4.3.8.1. and 4.5.6.1., or
                                                                                                                              b) taken out of service in conformance with Subsection 4.3.16.

                                                                                                                              3) Where a leak is detected as described in Sentence (1) or (2), the escaped liquid
                                                                                                                           shall be removed in conformance with Subsection 4.1.6.

                                                                                                    4.4.1.4.               Retention of Records

                                                                                                                              1) Records of the tests referred to in this Section shall be retained in conformance
                                                                                                                           with Article 2.2.1.2. of Division C.

                                                                                                    4.4.2.                 Leak Detection Testing and Monitoring Methods

                                                                                                    4.4.2.1.               Definition and Performance of Leak Detection Testing and Monitoring
                                                                                                                           Methods

                                                                                                                              1) This Subsection applies to the leak detection testing and monitoring methods
                                                                                                                           referred to in this Section.


                                                                                                    4-38 Division B                                                                                                     National Fire Code of Canada 2020
                                                                                                    Division B                                                                                              4.4.2.1.

                                                                                                                         2) Inventory reconciliation referred to in this Section shall
                                                                                                                         a) for the time period designated, determine product loss or gain based on
                                                                                                                            the reconciliation of
                                                                                                                                i) change in physical inventory,
                                                                                                                               ii) inventory additions (deliveries),
                                                                                                                              iii) inventory removals (sales), and
                                                                                                                              iv) miscellaneous inventory alterations, and
                                                                                                                         b) determine the level of water in the tank.
                                                                                                                      (See Note A-4.4.2.1.(2).)

                                                                                                                         3) A leak detection method that monitors vapours in the soil or liquids on the
                                                                                                                      groundwater shall conform to good engineering practice and meet the requirements of




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                                                                                                                      vapour monitoring or groundwater monitoring systems. (See Note A-4.4.2.1.(3).)

                                                                                                                         4) Statistical inventory reconciliation (SIR) methodology shall be capable of
                                                                                                                      detecting a leak
                                                                                                                          a) of 0.38 L/h with a probability of detection of 0.95 or greater and a probability
                                                                                                                             of false alarm of 0.05 or less, based on an inventory record of specified
                                                                                                                             length to be considered as an annual test, or
                                                                                                                         b) of 0.76 L/h with a probability of detection of 0.95 or greater and a probability
                                                                                                                             of false alarm of 0.05 or less, based on an inventory record of specified
                                                                                                                             length to be considered as a monthly test.
                                                                                                                      (See Note A-4.4.2.1.(4).)

                                                                                                                         5) Where inventory reconciliation is performed using automatic tank gauging
                                                                                                                      referred to in Sentence (2), the system shall conform to good engineering practice and
                                                                                                                      meet the requirements of a precision leak detection test when a leak is suspected in
                                                                                                                      conformance with Table 4.4.1.2.-A. (See Note A-4.4.2.1.(5).)

                                                                                                                         6) A continuous in-tank leak detection system shall conform to good engineering
                                                                                                                      practice and meet the requirements of a precision leak detection test. (See
                                                                                                                      Note A-4.4.2.1.(6).)

                                                                                                                         7) High-tech secondary containment monitoring referred to in this Section shall
                                                                                                                      include the use of an automatic device that continuously monitors the interstitial
                                                                                                                      space between the inner tank or inner piping and the secondary containment. (See
                                                                                                                      Sentence 4.3.7.7.(1).) (See Note A-4.4.2.1.(7) for low-tech method.)

                                                                                                                         8) Visual inspection referred to in this Section shall,
                                                                                                                         a) in the case of an exposed piping system, conform to Article 4.5.10.5., and
                                                                                                                         b) in the case of an aboveground storage tank, consist of
                                                                                                                               i) a visual examination of the tank shell, or
                                                                                                                              ii) if the bottom of the tank is not amenable to a visual
                                                                                                                                  examination, testing the bottom of the tank (see
                                                                                                                                  Note A-4.4.2.1.(8)(b)(ii)).

                                                                                                                         9) A static liquid media leak detection test shall conform to Article 4.4.3.5.

                                                                                                                        10) The precision leak detection test for underground storage tanks that is referred to
                                                                                                                      in this Section shall
                                                                                                                          a) be capable of detecting a storage tank leak rate as small as 0.38 L/h within
                                                                                                                              24 h with a probability of detection of 0.95 or greater and a probability of
                                                                                                                              false alarm of 0.05 or less (see Note A-4.4.2.1.(10)(a)), and
                                                                                                                          b) be conducted by an individual who has been trained in the proper care and
                                                                                                                              use of the test equipment and the operating procedures.
                                                                                                                      (See also Sentences 4.4.3.1.(2) and (3).)

                                                                                                                        11) Pipe leak detection referred to in this Section shall conform to
                                                                                                                      ULC/ORD-C107.12, “Line Leak Detection Devices for Flammable Liquid Piping.” (See
                                                                                                                      also Articles 4.4.3.3. and 4.4.3.4.)

                                                                                                                       12) A single vertical check valve referred to in this Section shall
                                                                                                                        a) consist of a vertical check valve located immediately under the pump,


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 4-39
                                                                                                    4.4.3.1.                                                                                              Division B

                                                                                                                         b) be installed with no other check valve between the suction pump and the
                                                                                                                             storage tank, and
                                                                                                                          c) be part of an installation where lines must be sufficiently sloped so that any
                                                                                                                             liquid in the line will drain back into the storage tank should a leak occur
                                                                                                                             in the piping system.
                                                                                                                      (See Note A-4.4.2.1.(12).)

                                                                                                    4.4.3.            Leak Detection Testing of Storage Tanks, Piping Systems
                                                                                                                      and Sumps
                                                                                                    4.4.3.1.          Leak Detection Tests




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                                                                                                                         1) Where field test methods are included in the storage tank construction standards
                                                                                                                      referred to in Articles 4.3.1.2. and 4.3.1.3., such tests shall be permitted for storage tanks
                                                                                                                      conforming to those standards.
                                                                                                                         2) If a precision leak detection test referred to in Sentence 4.4.2.1.(10) detects a leak
                                                                                                                      rate exceeding 0.38 L/h on an underground storage tank, the tank shall be considered
                                                                                                                      to be leaking.
                                                                                                                         3) During a leak detection test on a storage tank, the pressure at the bottom of the
                                                                                                                      tank shall not exceed the tank manufacturer's specifications.

                                                                                                    4.4.3.2.          Pneumatic Leak Detection Tests
                                                                                                                          1) Pneumatic leak detection tests using compressed air shall not be performed on
                                                                                                                      storage tanks and piping systems having once contained flammable liquids or combustible
                                                                                                                      liquids.
                                                                                                                          2) Except as provided in Sentence (1), pneumatic leak detection tests using
                                                                                                                      compressed air or an inert gas shall include the application of soap and water to the
                                                                                                                      storage tank and piping surface, fittings, joints and connections to help in the detection
                                                                                                                      of leaks.
                                                                                                                         3) In the case of underground storage tanks or piping, the test referred to in
                                                                                                                      Sentence (2) shall be conducted prior to covering the tank or piping system.
                                                                                                                         4) Where a pneumatic leak detection test is conducted before an underground
                                                                                                                      storage tank is backfilled, in the case of a new tank, or after the tank is uncovered, in
                                                                                                                      the case of a previously installed tank, the test pressure shall be in conformance with
                                                                                                                      the production testing requirements of
                                                                                                                          a) CAN/ULC-S603, “Standard for Steel Underground Tanks for Flammable
                                                                                                                              and Combustible Liquids,” or
                                                                                                                          b) CAN/ULC-S615, “Standard for Fibre Reinforced Plastic Underground Tanks
                                                                                                                              for Flammable and Combustible Liquids.”
                                                                                                                         5) Pneumatic leak detection tests shall not be performed on field-erected
                                                                                                                      aboveground storage tanks.
                                                                                                                         6) Measures shall be taken to guard against the hazards associated with pneumatic
                                                                                                                      leak detection testing in areas where explosive mixtures of flammable liquid or
                                                                                                                      combustible liquid vapours and air may be present in the vicinity of a storage tank that
                                                                                                                      has been in use.

                                                                                                    4.4.3.3.          Protocols for Pneumatic Leak Detection Testing of Piping Systems
                                                                                                                         1) A pressure decline test using an inert gas is permitted to be used as a leak
                                                                                                                      detection test for piping systems that
                                                                                                                         a) are new or in use, and
                                                                                                                         b) convey a volume of less than 1 000 L.
                                                                                                                         2) A pressure decline test performed on a piping system shall conform to
                                                                                                                      Sentences (3) to (9).
                                                                                                                         3) The design and installation of the piping system permitting, the piping system's
                                                                                                                      contents shall be drained prior to conducting the pressure decline test procedure.


                                                                                                    4-40 Division B                                                                          National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                4.4.3.5.

                                                                                                                         4) Pumps, dispensers and other auxiliary equipment that are connected to the
                                                                                                                      piping system and cannot withstand the pressure of the test shall be isolated from the
                                                                                                                      test procedure to prevent damage to the equipment.
                                                                                                                         5) A stabilization period of up to 30 min is required after pressurization.
                                                                                                                         6) Pipe volumes of 500 L or less shall be pressurized for at least 60 min after
                                                                                                                      stabilization.
                                                                                                                         7) Pipe volumes greater than 500 L but less than 1 000 L shall be pressurized
                                                                                                                      for at least 2 h after stabilization.
                                                                                                                         8) Test pressures shall




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                                                                                                                         a) be the greater of 350 kPa (gauge) or 1.5 times the maximum operating
                                                                                                                            pressure, and
                                                                                                                         b) not exceed the piping manufacturer's test specifications.
                                                                                                                         9) The piping system shall be considered to be leaking if any pressure decline is
                                                                                                                      detected within the time periods stated.

                                                                                                    4.4.3.4.          Protocols for Liquid Media Leak Detection Testing of Piping Systems
                                                                                                                         1) Liquid media leak detection testing of piping systems shall conform to
                                                                                                                      Sentences (2) to (9).
                                                                                                                        2) Test devices and methods shall conform to the performance requirements of
                                                                                                                      ULC/ORD-C107.12, “Line Leak Detection Devices for Flammable Liquid Piping.”
                                                                                                                         3) Tests shall be conducted by an individual who has been trained in the proper
                                                                                                                      use of the test device and the operating procedures.
                                                                                                                         4) A sufficient amount of time shall be allocated to stabilize the temperature of the
                                                                                                                      liquid throughout the volume of the piping during the test.
                                                                                                                         5) Except as provided in Sentences (6) and (7), test pressure shall
                                                                                                                         a) be the greater of 350 kPa (gauge) or 1.5 times the maximum operating
                                                                                                                            pressure, and
                                                                                                                         b) not exceed the piping manufacturer's test specifications.
                                                                                                                         6) Test pressures exceeding 700 kPa (gauge) shall not be permitted unless the
                                                                                                                      piping system is designed for such pressures.
                                                                                                                         7) Where test pressures exceed the design pressures for pumps or similar
                                                                                                                      components connected to the piping system being tested, such pumps or components
                                                                                                                      shall be isolated from the test procedure.
                                                                                                                         8) Class I liquids shall not be used for pressure testing piping systems, except that
                                                                                                                      pressure piping normally containing Class I liquids is permitted to be tested with such
                                                                                                                      liquids at pressures not exceeding their maximum operating pressures.
                                                                                                                         9) The piping system shall be considered to be leaking if the leak rate exceeds
                                                                                                                      0.38 L/h.

                                                                                                    4.4.3.5.          Protocols for Leak Detection Testing of Sumps
                                                                                                                        1) Static liquid media leak detection testing of turbine, transition, dispenser and
                                                                                                                      pump sumps shall conform to Sentences (2) to (4).
                                                                                                                         2) Static liquid media testing of sumps shall be performed at the installation stage
                                                                                                                      after all electrical and mechanical work passing through the sump wall has been
                                                                                                                      completed, but before any backfilling around the exterior of the sump is completed.
                                                                                                                         3) The liquid used for the test shall
                                                                                                                         a) exceed the elevation of the piping and other points of entry into the sump
                                                                                                                            by at least 50 mm, and
                                                                                                                         b) not be a flammable liquid or a combustible liquid.
                                                                                                                         4) The minimum duration of the test shall be 1 h with no visual or measured
                                                                                                                      evidence of leakage.


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 4-41
                                                                                                    4.4.4.1.                                                                                            Division B

                                                                                                    4.4.4.            Leak Detection Monitoring of Storage Tanks and Piping
                                                                                                                      Systems
                                                                                                    4.4.4.1.          Inventory Reconciliation
                                                                                                                      (See Note A-4.4.4.1.)
                                                                                                                         1) Where inventory reconciliation is required by this Section, the liquid level in
                                                                                                                      any storage tank shall be measured at intervals not greater than 7 days in conformance
                                                                                                                      with Sentences (2) to (4), except that at fuel-dispensing stations the measurements shall
                                                                                                                      be taken each day the station is in operation.
                                                                                                                        2) The level of water at the bottom of an underground storage tank shall be




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                                                                                                                      measured at intervals not greater than 7 days, except that at fuel-dispensing stations the
                                                                                                                      measurements shall be taken each day the station is in operation.
                                                                                                                         3) Investigative action shall be undertaken if the inventory reconciliation described
                                                                                                                      in Sentence 4.4.2.1.(2) indicates the following inexplicable conditions:
                                                                                                                          a) a monthly loss of
                                                                                                                                i) 0.5 percent or more of the throughput from an underground
                                                                                                                                   storage tank, or
                                                                                                                               ii) 1.0 percent or more of the throughput from an aboveground
                                                                                                                                   storage tank,
                                                                                                                          b) three consecutive losses greater than 200 L/day, and
                                                                                                                          c) a water level greater than 50 mm.
                                                                                                                         4) A record of the measurements for each storage tank and of the computations
                                                                                                                      described in Sentence (3) shall be retained in conformance with Article 2.2.1.2. of
                                                                                                                      Division C.

                                                                                                    4.4.4.2.          Leakage Detection
                                                                                                                         1) Where continuous leak detection is provided on an underground piping
                                                                                                                      system, it shall conform to ULC/ORD-C107.12, “Line Leak Detection Devices for
                                                                                                                      Flammable Liquid Piping.”


                                                                                                    Section 4.5. Piping and Transfer Systems
                                                                                                    4.5.1.            Scope
                                                                                                    4.5.1.1.          Application
                                                                                                                         1) This Section applies to piping and transfer systems for flammable liquids and
                                                                                                                      combustible liquids.
                                                                                                                          2) Except where otherwise stated in this Part, this Section shall not apply to the
                                                                                                                      following:
                                                                                                                          a) tubing or casings and piping for oil or gas wells,
                                                                                                                          b) transmission pipelines,
                                                                                                                          c) piping for vehicles, aircraft, watercraft and portable or stationary engines,
                                                                                                                          d) piping systems in fuel-dispensing stations and distilleries, and
                                                                                                                          e) piping that falls within the scope of the applicable provincial or territorial
                                                                                                                             codes regulating boilers and pressure vessels.

                                                                                                    4.5.2.            Materials for Piping, Valves and Fittings
                                                                                                    4.5.2.1.          Materials
                                                                                                                         1) Materials for piping systems containing flammable liquids or combustible liquids
                                                                                                                      shall be suitable for the maximum anticipated working pressures and operating
                                                                                                                      temperatures and for the chemical properties of the contained liquid.


                                                                                                    4-42 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                 4.5.4.2.

                                                                                                                         2) Except as provided in Sentence (3), the use of the following materials for piping
                                                                                                                      systems referred to in Sentence (1) shall not be permitted:
                                                                                                                          a) materials that are subject to failure from internal stress or rupture by
                                                                                                                             mechanical damage, or
                                                                                                                         b) combustible or low-melting-point materials that are subject to failure even
                                                                                                                             in moderate fires.
                                                                                                                         3) Metallic and non-metallic piping systems are permitted to be used for
                                                                                                                      underground installations, provided they conform to CAN/ULC-S679, “Standard
                                                                                                                      for Metallic and Nonmetallic Underground Piping for Flammable and Combustible
                                                                                                                      Liquids.”




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                                                                                                                           4) Except as provided in Sentence (5), where steel piping is used, it shall conform
                                                                                                                      to
                                                                                                                           a) API SPEC 5L, “Line Pipe,”
                                                                                                                           b) ASTM A53/A53M, “Standard Specification for Pipe, Steel, Black and
                                                                                                                              Hot-Dipped, Zinc-Coated, Welded and Seamless,” or
                                                                                                                           c) CSA Z245.1, “Steel pipe.”
                                                                                                                          5) Where service pressures exceeding 875 kPa (gauge) may occur, piping and
                                                                                                                      fittings shall be designed in conformance with ASME B31.3, “Process Piping.”
                                                                                                                         6) Underground piping systems shall include piping in tank sumps, transition
                                                                                                                      sumps and dispenser sumps.

                                                                                                    4.5.2.2.          Special Materials
                                                                                                                         1) Where problems of corrosion, contamination, or sanitation or standards of
                                                                                                                      purity require special materials, it is permitted to use non-metallic materials for piping,
                                                                                                                      valves and fittings in conformance with Clause 1.2.1.1.(1)(b) of Division A.

                                                                                                    4.5.3.            Corrosion Protection of Piping Systems
                                                                                                    4.5.3.1.          Corrosion Protection
                                                                                                                         1) Underground metallic piping systems in contact with the soil or groundwater
                                                                                                                      shall be protected against corrosion in conformance with
                                                                                                                         a) CAN/ULC-S603.1, “Standard for External Corrosion Protection Systems for
                                                                                                                              Steel Underground Tanks for Flammable and Combustible Liquids,” or
                                                                                                                         b) NACE SP0169, “Control of External Corrosion on Underground or
                                                                                                                              Submerged Metallic Piping Systems.”

                                                                                                    4.5.4.            Identification of Piping Systems
                                                                                                    4.5.4.1.          Identification
                                                                                                                         1) Pipelines for flammable liquids or combustible liquids shall be marked with the
                                                                                                                      contents of the line, and these markings shall be maintained in a clearly legible form.
                                                                                                                           2) Piping for flammable liquids or combustible liquids shall not be painted red.
                                                                                                                         3) Transfer points in piping systems for flammable liquids and combustible liquids
                                                                                                                      shall be identified in conformance with CFA 1990, “Using the Canadian Fuels
                                                                                                                      Colour-Symbol System to Mark Equipment and Vehicles For Product Identification.”

                                                                                                    4.5.4.2.          Documentation
                                                                                                                         1) Documentation on the piping systems for flammable liquids or combustible liquids,
                                                                                                                      including the tank and pumping arrangements, shall be made available to the fire
                                                                                                                      department upon request.
                                                                                                                         2) Documents referred to in Sentence (1) shall be kept at two separate locations so
                                                                                                                      that one copy remains readily available in the event the other is inaccessible due to fire.


                                                                                                    National Fire Code of Canada 2020                                                                         Division B 4-43
                                                                                                    4.5.5.1.                                                                                         Division B

                                                                                                    4.5.5.            Joints in Piping Systems
                                                                                                    4.5.5.1.          Threaded Joints
                                                                                                                         1) Threaded joints in piping systems for flammable liquids or combustible liquids
                                                                                                                      shall be made using joint compound or polytetrafluoroethylene tape conforming to
                                                                                                                      CAN/ULC-S642, “Standard for Compounds and Tapes for Threaded Pipe Joints.”

                                                                                                    4.5.5.2.          Welded Piping
                                                                                                                         1) Welding of piping for flammable liquids or combustible liquids shall conform to
                                                                                                                      Section 5.2. and to the appropriate provincial or territorial regulations or municipal
                                                                                                                      bylaws, or in the absence of such regulations, to API STD 1104, “Welding of Pipelines




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                                                                                                                      and Related Facilities.”
                                                                                                                         2) Flanged joints for piping shall be provided in welded systems at intervals
                                                                                                                      that will facilitate dismantling and avoid subsequent in-place cutting and welding
                                                                                                                      operations.

                                                                                                    4.5.5.3.          Flanged Joints
                                                                                                                         1) Except as permitted in Sentence (2), flanged joints for piping shall be made with
                                                                                                                      forged or cast steel flanges designed, constructed and installed in conformance with
                                                                                                                      ASME B16.5, “Pipe Flanges and Flanged Fittings: NPS ½ through NPS 24 Metric/Inch
                                                                                                                      Standard.”
                                                                                                                         2) Bronze flanges for 50 mm diameter or smaller size piping referred to in
                                                                                                                      Article 4.5.5.2. are permitted to be used where copper and brass piping is permitted.

                                                                                                    4.5.5.4.          Bolting Materials
                                                                                                                         1) Bolting materials for flanged connections in steel piping systems for
                                                                                                                      flammable liquids or combustible liquids shall be of alloy steel equivalent to ASTM
                                                                                                                      A193/A193M, “Standard Specification for Alloy-Steel and Stainless Steel Bolting for
                                                                                                                      High Temperature or High Pressure Service and Other Special Purpose Applications,”
                                                                                                                      Grade B-7.

                                                                                                    4.5.5.5.          Gaskets
                                                                                                                         1) Gaskets in flanged connections shall be of a material resistant to the liquid
                                                                                                                      being carried and capable of withstanding temperatures of at least 650°C without
                                                                                                                      damage that would impair their function.

                                                                                                    4.5.5.6.          Mechanical Connections
                                                                                                                      (See Note A-4.5.5.6.)
                                                                                                                         1)   Mechanical connections in underground piping systems shall
                                                                                                                         a)   be readily accessible for inspection and maintenance,
                                                                                                                         b)   not be in direct contact with the soil, and
                                                                                                                         c)   be provided within a transition sump.

                                                                                                    4.5.5.7.          Penetrations into Sumps
                                                                                                                         1) All penetrations into a sump shall be situated at least 50 mm from the bottom of
                                                                                                                      the sump. (See Note A-4.5.5.7.(1).)

                                                                                                    4.5.6.            Location and Arrangement of Piping
                                                                                                    4.5.6.1.          Construction
                                                                                                                         1) Except for vent risers and vertical fill piping systems, underground piping
                                                                                                                      systems shall be of double-walled construction.

                                                                                                    4.5.6.2.          Location
                                                                                                                         1) Piping shall be installed outdoors whenever possible and located so it will not
                                                                                                                      create a hazard to buildings or equipment.


                                                                                                    4-44 Division B                                                                     National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                4.5.6.6.

                                                                                                                         2) Where piping for flammable liquids or combustible liquids is installed within a
                                                                                                                      building, the length of piping shall be as direct and as short as practicable.
                                                                                                                        3) It is not permitted to use any portion of a piping system in a manner that could
                                                                                                                      damage it or for any purpose other than the transfer of product.
                                                                                                                         4) Vent piping and connections for filling and emptying storage tanks shall be
                                                                                                                      located in conformance with Section 4.3.

                                                                                                    4.5.6.3.          Supports for Aboveground Outdoor Piping
                                                                                                                         1) Aboveground outdoor piping shall be supported and arranged to prevent




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                                                                                                                      excessive vibration and stress on equipment connected to it.
                                                                                                                         2) Where vehicular, watercraft or floatplane impact or physical damage is possible,
                                                                                                                      protective guarding devices shall be provided for aboveground outdoor piping.
                                                                                                                         3) Aboveground piping systems shall be supported such that they are not in direct
                                                                                                                      contact with the surface of the ground.

                                                                                                    4.5.6.4.          Arrangement of Aboveground Outdoor Piping
                                                                                                                         1) Aboveground outdoor piping shall not be located
                                                                                                                         a) on the exterior of walls except on those of noncombustible construction, or
                                                                                                                         b) above windows.
                                                                                                                         2) Aboveground outdoor piping shall not be located above roofs, except above
                                                                                                                      roofs of impermeable and noncombustible construction with provision for accidental
                                                                                                                      spillage provided in conformance with Subsection 4.1.6.
                                                                                                                         3) Where aboveground piping crosses roadways or railway sidings, ample
                                                                                                                      overhead clearance and warning signs indicating the clearance height shall be
                                                                                                                      provided.
                                                                                                                          4) Piping passing though the secondary containment walls of an aboveground
                                                                                                                      storage tank shall be designed to prevent excessive stress resulting from settlement or
                                                                                                                      fire exposure.

                                                                                                    4.5.6.5.          Arrangement of Underground Piping
                                                                                                                         1) Underground piping shall be located so it will not be damaged as a result of
                                                                                                                      vibrations or settling of an adjacent building or structure.
                                                                                                                         2) Underground piping shall be located not less than 300 mm away from the
                                                                                                                      foundations of any building or structure, except where such piping enters the building
                                                                                                                      as permitted in Article 4.5.6.8.
                                                                                                                         3) Piping passing under railway tracks shall be installed in conformance with TC
                                                                                                                      2001, “Standards Respecting Pipeline Crossings Under Railways.”
                                                                                                                        4) Piping adjacent to railway tracks shall be installed in conformance with
                                                                                                                      TC General Order No. O-32, C.R.C., c. 1148, “Flammable Liquids Bulk Storage
                                                                                                                      Regulations.”

                                                                                                    4.5.6.6.          Installation of Underground Piping
                                                                                                                         1) Underground piping shall be
                                                                                                                         a) supported on
                                                                                                                               i) undisturbed or compacted soil, or
                                                                                                                              ii) not less than 150 mm of clean sand, pea gravel or clean
                                                                                                                                  crushed stone, and
                                                                                                                         b) backfilled on the top and sides with not less than
                                                                                                                               i) 300 mm of pea gravel or clean crushed stone, or
                                                                                                                              ii) 300 mm of clean sand, free of cinders and stones, and
                                                                                                                                  compacted in layers not more than 300 mm thick.


                                                                                                    National Fire Code of Canada 2020                                                                     Division B 4-45
                                                                                                    4.5.6.7.                                                                                            Division B

                                                                                                    4.5.6.7.          Piping in Service Tunnels
                                                                                                                         1) Piping for flammable liquids or combustible liquids shall not be located in service
                                                                                                                      tunnels that are used for pedestrian traffic other than maintenance personnel.

                                                                                                    4.5.6.8.          Piping at Entrances to Buildings
                                                                                                                        1) Piping for flammable liquids or combustible liquids shall be located aboveground
                                                                                                                      where the piping enters a building.
                                                                                                                         2) Piping referred to in Sentence (1) shall be provided with inside and outside
                                                                                                                      shut-off valves.
                                                                                                                         3) Where piping referred to in Sentence (1) passes through a wall that would




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                                                                                                                      restrict the expansion or contraction of the piping, pipe sleeves shall be provided at the
                                                                                                                      wall penetration to facilitate such movement.

                                                                                                    4.5.6.9.          Indoor Piping
                                                                                                                         1) Indoor piping for flammable liquids or combustible liquids shall either be supported
                                                                                                                      overhead or be located in trenches conforming to Article 4.5.6.10.
                                                                                                                         2) Piping referred to in Sentence (1) shall not be installed under combustible
                                                                                                                      flooring.
                                                                                                                        3) Piping in trenches referred to in Sentence (1) shall be covered with
                                                                                                                      noncombustible material.

                                                                                                    4.5.6.10.         Piping in Trenches
                                                                                                                         1) Where indoor piping for flammable liquids or combustible liquids is installed in
                                                                                                                      trenches, a trapped drainage system shall be provided.
                                                                                                                         2) When piping referred to in Sentence (1) contains Class I liquids, the trench shall
                                                                                                                      be provided with ventilation designed to prevent the accumulation of flammable
                                                                                                                      vapours in accordance with Sentence 6.9.1.2.(2) of Division B of the NBC.

                                                                                                    4.5.6.11.         Overhead Piping
                                                                                                                          1) Overhead piping for flammable liquids or combustible liquids shall be installed
                                                                                                                      close to the ceiling or beams or along walls not less than 1.8 m above the floor to protect
                                                                                                                      it against mechanical damage.
                                                                                                                         2) Where practicable, overhead piping referred to in Sentence (1) shall be
                                                                                                                      supported from building framing members.
                                                                                                                         3) In buildings of steel frame construction, piping referred to in Sentence (1) shall
                                                                                                                      be fastened to steel beams or columns by pipe hangers attached to the flanges.
                                                                                                                         4) Piping under concrete ceilings shall be suspended with the use of through
                                                                                                                      bolts or expansion shields.

                                                                                                    4.5.6.12.         Supports for Overhead Piping
                                                                                                                         1) Piping shall be supported on pipe hangers or other supports so that allowable
                                                                                                                      stresses in the pipe are not exceeded. (See Note A-4.5.6.12.(1).)
                                                                                                                          2) Anchors of the expansion shield type used to suspend piping shall not be used
                                                                                                                      to suspend piping from unsound or lightweight concrete or from gypsum assemblies.

                                                                                                    4.5.6.13.         Protection of Pipe Risers
                                                                                                                         1) Exposed pipe risers shall be protected against mechanical damage by
                                                                                                                         a) installing such risers
                                                                                                                                i) adjacent to walls or pilasters,
                                                                                                                               ii) between flanges of steel columns, or
                                                                                                                              iii) within securely anchored larger perforated pipe, and
                                                                                                                         b) providing mechanical guards where the risers are exposed to mobile
                                                                                                                            equipment.


                                                                                                    4-46 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                 4.5.7.4.

                                                                                                    4.5.6.14.         Provision for Expansion and Contraction
                                                                                                                         1) In the design of piping systems for flammable liquids or combustible liquids,
                                                                                                                      provision shall be made for the expansion and contraction of the piping system and of
                                                                                                                      the product it conveys.
                                                                                                                         2) To prevent excessive stresses resulting from vibration, settling or temperature
                                                                                                                      changes,
                                                                                                                         a) flexible non-metallic hose connectors conforming to CAN/ULC-S633,
                                                                                                                            “Standard for Flexible Connector Piping for Fuels Connectors for Flammable
                                                                                                                            and Combustible Liquids,” are permitted to be used where necessary in
                                                                                                                            underground piping systems carrying flammable liquids or combustible liquids,




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                                                                                                                         b) flexible metallic and non-metallic pipe and fittings conforming to
                                                                                                                            CAN/ULC-S679, “Standard for Metallic and Nonmetallic Underground
                                                                                                                            Piping for Flammable and Combustible Liquids,” are permitted to be used
                                                                                                                            where necessary in underground piping systems carrying flammable liquids
                                                                                                                            or combustible liquids, or
                                                                                                                         c) flexible metallic hose connectors conforming to ULC/ORD-C536, “Flexible
                                                                                                                            Metallic Hose,” are permitted to be used where necessary in aboveground
                                                                                                                            and underground piping systems carrying flammable liquids or combustible
                                                                                                                            liquids.

                                                                                                    4.5.7.            Valves in Piping Systems
                                                                                                    4.5.7.1.          Design
                                                                                                                         1) Except as provided in Sentences (2) and (3), valves in piping systems
                                                                                                                      for flammable liquids or combustible liquids shall be designed to accommodate the
                                                                                                                      temperatures and pressures of those systems and shall conform to ULC/ORD-C842,
                                                                                                                      “Guide for the Investigation of Valves for Flammable and Combustible Liquids.”
                                                                                                                        2) Every hose nozzle valve shall conform to CAN/ULC-S620, “Standard for Hose
                                                                                                                      Nozzle Valves for Flammable and Combustible Liquids.”
                                                                                                                        3) Every emergency valve shall conform to CAN/ULC-S651, “Standard for
                                                                                                                      Emergency Valves for Flammable and Combustible Liquids.”

                                                                                                    4.5.7.2.          Shut-off Valves
                                                                                                                         1) Shut-off valves shall be provided in all flammable liquid or combustible liquid
                                                                                                                      piping and pumping systems.
                                                                                                                         2) Where practicable, valves referred to in Sentence (1) shall be located outdoors
                                                                                                                      or be immediately accessible from outdoors.
                                                                                                                         3)    Except as permitted in Sentence (4), steel shut-off valves shall be provided
                                                                                                                         a)    at connections to all aboveground storage tanks,
                                                                                                                         b)    on supply piping where it enters buildings or structures,
                                                                                                                         c)    on branch lines from the main supply line,
                                                                                                                         d)    on supply lines at dispensing locations,
                                                                                                                         e)    to isolate one part of a piping system from another, and
                                                                                                                          f)   to isolate meters and air eliminators.
                                                                                                                        4) Stainless steel, monel metal or lined steel bodied valves are permitted to be used
                                                                                                                      when special conditions warrant their use.

                                                                                                    4.5.7.3.          Diaphragm Valves
                                                                                                                         1) Diaphragm valves shall have no direct connections between the liquid and air
                                                                                                                      sections that might permit leakage of the liquid past the packing into the air lines.

                                                                                                    4.5.7.4.          Globe Valves
                                                                                                                         1) Globe valves shall be arranged so that the packing is on the low pressure side.


                                                                                                    National Fire Code of Canada 2020                                                                         Division B 4-47
                                                                                                    4.5.7.5.                                                                                           Division B

                                                                                                    4.5.7.5.          Indicating Valves

                                                                                                                         1) Rising stem or other indicating valves shall be used where necessary to
                                                                                                                      determine whether the valves are open or shut.

                                                                                                    4.5.7.6.          Identification

                                                                                                                         1) All valves shall be identified in conformance with CFA 1990, “Using the
                                                                                                                      Canadian Fuels Colour-Symbol System to Mark Equipment and Vehicles For Product
                                                                                                                      Identification.”

                                                                                                                         2) Every identification tag shall be kept clean so that its colour and inscription




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                                                                                                                      are easily recognizable.

                                                                                                    4.5.8.            Heating of Piping Systems

                                                                                                    4.5.8.1.          Design

                                                                                                                         1) Heating equipment for piping systems containing flammable liquids or
                                                                                                                      combustible liquids shall be designed not to overheat or create an ignition source for
                                                                                                                      the liquids being heated.

                                                                                                    4.5.8.2.          Steam Heating

                                                                                                                         1) Flammable liquid and combustible liquid piping is permitted to be heated by steam
                                                                                                                      lines provided the minimum steam temperature and pressure to make the liquid fluid
                                                                                                                      are used and Sentences (2) and (3) are complied with.

                                                                                                                         2) A pressure regulator shall be provided in the steam line with a relief valve
                                                                                                                      on the downstream side of the regulator.

                                                                                                                         3) Piping and steam lines shall be enclosed in insulation conforming to the NBC.

                                                                                                    4.5.8.3.          Electrical Heating Cables

                                                                                                                         1) Electrical heating cables including electrical induction heating shall conform
                                                                                                                      to Subsection 4.1.4.

                                                                                                    4.5.8.4.          Thermal Electrical Conduction Heating

                                                                                                                         1) Thermal electrical conduction heating conforming to Sentence (2) is permitted
                                                                                                                      to be used by passing a low-voltage alternating current through the pipe.

                                                                                                                         2) Systems permitted in Sentence (1) shall be installed and tested as complete
                                                                                                                      units and shall conform to the following:
                                                                                                                         a) unheated sections of piping shall be isolated from heated sections by means
                                                                                                                             of nonconductive fittings,
                                                                                                                         b) thermostatic controls, high temperature limit controls and fuses shall have
                                                                                                                             the lowest practical rating to ensure satisfactory operation,
                                                                                                                         c) all parts of the piping and fittings shall be enclosed by insulating coverings
                                                                                                                             of a type that will prevent accidental grounding of the systems, and
                                                                                                                         d) switches, transformers, contactors and other spark-producing equipment
                                                                                                                             shall be located in an area not subject to flammable vapours.

                                                                                                                         3) Upon completion of installation, systems permitted in Sentence (1) shall be
                                                                                                                      tested to ensure that all components are functioning as intended.

                                                                                                    4.5.8.5.          Open Flames

                                                                                                                         1) The use of open flames as a heat source shall not be permitted for heating
                                                                                                                      piping for flammable liquids or combustible liquids.


                                                                                                    4-48 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                             4.5.9.6.

                                                                                                    4.5.9.            Methods of Transfer in Piping Systems
                                                                                                    4.5.9.1.          Location of Outdoor Pumps
                                                                                                                         1) Pumps for flammable liquid or combustible liquid piping systems installed
                                                                                                                      aboveground and outside of buildings shall be located not less than
                                                                                                                         a) 3 m from the property line, and
                                                                                                                         b) 1.5 m from building openings.

                                                                                                    4.5.9.2.          Pump Houses and Pump Rooms
                                                                                                                        1) Pumps located indoors shall be in rooms built in conformance with
                                                                                                                      Subsection 4.2.9. (See Note A-4.5.9.2.(1).)




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                                                                                                                         2) Pump houses and pump rooms shall not be used for any purpose other than to
                                                                                                                      serve the pumping equipment.

                                                                                                    4.5.9.3.          Pits
                                                                                                                         1) Pits for subsurface pumps for piping systems or for piping connected to
                                                                                                                      submersible pumps shall be designed to withstand the forces to which they may be
                                                                                                                      subjected without causing damage to the system.
                                                                                                                         2) Pits provided in conformance with Sentence (1) shall not be larger than
                                                                                                                      necessary for inspection and maintenance and shall be provided with a cover.

                                                                                                    4.5.9.4.          Control Switches
                                                                                                                         1) Pumps for piping systems shall be provided with duplicate control switches to
                                                                                                                      shut down the pumps in case of emergency, with one located in the operating area and
                                                                                                                      the other at a remote location.

                                                                                                    4.5.9.5.          Hydraulic Transfer Systems
                                                                                                                         1) Where flammable liquids or combustible liquids are transferred by water pressure
                                                                                                                      as a result of displacement, such system shall not be used for liquids that are miscible
                                                                                                                      in water.
                                                                                                                         2) All pressure vessels for hydraulic transfer systems referred to in Sentence (1)
                                                                                                                      shall be constructed, installed and tested in conformance with ASME BPVC, “Boiler
                                                                                                                      and Pressure Vessel Code.”
                                                                                                                         3) Hydraulic transfer systems referred to in Sentence (1) shall be designed to
                                                                                                                      prevent water pressure in excess of the design pressure of the tank or piping.
                                                                                                                         4) Operating pressures shall be controlled by a constant-level float valve or a
                                                                                                                      pressure-regulating valve on the water supply side of the hydraulic transfer system
                                                                                                                      referred to in Sentence (1).
                                                                                                                         5) Hydraulic transfer systems referred to in Sentence (1) shall be arranged so that
                                                                                                                      there is no water pressure on the system except when liquid is being discharged.
                                                                                                                          6) Check valves shall be provided for both water and flammable liquid or
                                                                                                                      combustible liquid piping to prevent backflow in hydraulic transfer systems referred
                                                                                                                      to in Sentence (1).

                                                                                                    4.5.9.6.          Inert Gas Transfer Systems
                                                                                                                         1) Where flammable liquids or combustible liquids are transferred as a result of
                                                                                                                      displacement by the expansion of nitrogen, carbon dioxide or other inert gases, all
                                                                                                                      pressure vessels involved shall be constructed, installed and tested in conformance with
                                                                                                                      ASME BPVC, “Boiler and Pressure Vessel Code.”
                                                                                                                         2) Pressure regulators for inert gas transfer systems referred to in Sentence (1)
                                                                                                                      shall be provided in the gas line to control the pressure of the gas at the minimum
                                                                                                                      pressure required to force the liquid through the piping system at the required rate.
                                                                                                                         3) A relief valve with a slightly higher setting than the pressure required in
                                                                                                                      Sentence (2) shall be provided on the downstream side of the regulator or on the tank.


                                                                                                    National Fire Code of Canada 2020                                                                    Division B 4-49
                                                                                                    4.5.9.7.                                                                                            Division B

                                                                                                                          4) Means of automatically shutting off the gas supply and bleeding the gas
                                                                                                                      pressure in the event of fire shall be provided on all inert gas transfer systems referred
                                                                                                                      to in Sentence (1).

                                                                                                    4.5.9.7.          Non-Inert Gas Transfer
                                                                                                                         1) Except as permitted in Sentence (2), the transfer of flammable liquids or
                                                                                                                      combustible liquids in a closed piping system by means of compressed air or other
                                                                                                                      non-inert gas pressure shall not be permitted.
                                                                                                                         2) A non-inert gas pressure is permitted to be used in a closed piping system
                                                                                                                      referred to in Sentence (1), provided
                                                                                                                          a) it is the vapour or gas of the flammable liquid or combustible liquid being




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                                                                                                                             transferred, or
                                                                                                                          b) it is a vapour or gas that will not support combustion reaction and is
                                                                                                                             non-reactive with the flammable liquid or combustible liquid being transferred.

                                                                                                    4.5.10.           Operating Procedures for Piping Systems
                                                                                                    4.5.10.1.         Procedures
                                                                                                                          1) Standard procedures for normal operation and for emergencies shall be given
                                                                                                                      in printed form to all employees engaged in the operation of equipment for the transfer
                                                                                                                      of flammable liquids or combustible liquids and shall be posted for convenient reference.

                                                                                                    4.5.10.2.         Training
                                                                                                                         1) All employees concerned with transfer operations involving flammable liquids
                                                                                                                      or combustible liquids shall be trained in
                                                                                                                          a) the procedures referred to in Article 4.5.10.1.,
                                                                                                                          b) the importance of constant attendance during all loading or unloading
                                                                                                                             operations,
                                                                                                                          c) extinguishing procedures for fires involving flammable liquids and combustible
                                                                                                                             liquids, and
                                                                                                                          d) the flammable liquid and combustible liquid colour coding and identification
                                                                                                                             system required in Article 4.5.7.6.
                                                                                                                          2) Employees engaged in the operation of equipment for the transfer of flammable
                                                                                                                      liquids or combustible liquids shall be trained in the location, function and operation of
                                                                                                                      valves used for the operation of fire protection equipment and manual emergency
                                                                                                                      shut-off valves.

                                                                                                    4.5.10.3.         Emergency Valves
                                                                                                                         1) Signs indicating the location of valves used for the operation of fire protection
                                                                                                                      equipment and manual emergency shut-off valves shall be posted in conspicuous
                                                                                                                      locations.

                                                                                                    4.5.10.4.         Portable Extinguishers
                                                                                                                          1) At least one portable extinguisher having a rating of 80-B:C shall be provided
                                                                                                                      in the vicinity of pumps and ancillary equipment used for the transfer of flammable
                                                                                                                      liquids or combustible liquids.

                                                                                                    4.5.10.5.         Visual Inspections
                                                                                                                         1) A visual inspection routine for the prompt detection of obviously abnormal
                                                                                                                      conditions shall be established and shall be performed at least once each shift.
                                                                                                                         2) A visual inspection shall be made at least once during each day of operation
                                                                                                                      of all aboveground piping systems, pumps and other ancillary equipment to detect
                                                                                                                      leakage, and any leakage shall be repaired as quickly as practicable.
                                                                                                                         3) Where necessary, flammable vapour indicators shall be used to detect leakage.
                                                                                                                         4) Open flames and spark-producing devices shall not be used for leakage
                                                                                                                      detection referred to in Sentence (2).


                                                                                                    4-50 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                4.6.2.1.

                                                                                                    4.5.10.6.         Operational Tests
                                                                                                                         1) To ensure proper operation, frequent inspections and tests shall be made of all
                                                                                                                      safety shut-off valves and other fire safety devices, with particular attention directed to
                                                                                                                      normally open, fusible-link-operated valves, float valves and automatic controls.

                                                                                                    4.5.10.7.         Maintenance
                                                                                                                         1) Except as provided in Sentence (6), maintenance shall not be carried out on
                                                                                                                      piping systems while they are under pressure.
                                                                                                                         2) If connections or piping are to be opened, the system shall be drained of
                                                                                                                      flammable liquids and combustible liquids.




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                                                                                                                         3) Where equipment for handling flammable liquids or combustible liquids has to be
                                                                                                                      repaired, it shall be removed and taken to maintenance areas when possible.
                                                                                                                        4) Tags shall be attached to all valves on piping systems that are shut off for
                                                                                                                      maintenance purposes to indicate that such valves are not to be opened.
                                                                                                                          5) Piping that has been used for the transfer of flammable liquids or combustible
                                                                                                                      liquids shall be removed or capped when it is no longer intended to be used.
                                                                                                                         6) The maintenance of pressurized piping systems shall be carried out in
                                                                                                                      conformance with good engineering practice. (See Note A-4.5.10.7.(6).)


                                                                                                    Section 4.6. Fuel-Dispensing Stations
                                                                                                    4.6.1.            Scope
                                                                                                    4.6.1.1.          Application
                                                                                                                      (See Note A-4.6.1.1.)
                                                                                                                          1) This Section applies to the storage, handling and use of flammable liquids,
                                                                                                                      combustible liquids and dangerous goods classified as flammable gases at fuel-dispensing
                                                                                                                      stations.
                                                                                                                         2) Except as provided in this Section, the storage and dispensing of dangerous goods
                                                                                                                      classified as flammable gases at fuel-dispensing stations shall conform to
                                                                                                                          a) CSA B108, “Natural gas refuelling stations installation code,”
                                                                                                                          b) CSA B149.1, “Natural gas and propane installation code,” and
                                                                                                                          c) CSA B149.2, “Propane storage and handling code.”
                                                                                                                         3) Requirements of this Section that pertain to the location of dispensers, storage
                                                                                                                      tanks, pumps, piping and their ancillary equipment inside buildings shall not apply to a
                                                                                                                      canopy that is open on not less than 75% of its perimeter.

                                                                                                    4.6.2.            Storage and Handling
                                                                                                    4.6.2.1.          Outside Aboveground Storage Tanks
                                                                                                                         1) Except as provided in Sentences (2) to (5), the installation of outside
                                                                                                                      aboveground storage tanks at fuel-dispensing stations shall be in conformance with
                                                                                                                      Subsection 4.3.2.
                                                                                                                         2) Except as permitted in Sentence (3), outside aboveground storage tanks at
                                                                                                                      fuel-dispensing stations shall have an individual capacity of not more than 80 000 L, and
                                                                                                                      their aggregate capacity shall not exceed 200 000 L.
                                                                                                                          3) The individual capacity of outside aboveground storage tanks at fuel-dispensing
                                                                                                                      stations is permitted to exceed the individual capacity limit of 80 000 L required in
                                                                                                                      Sentence (2), provided
                                                                                                                          a) they conform to CAN/ULC-S655, “Standard for Aboveground Protected
                                                                                                                              Tank Assemblies for Flammable and Combustible Liquids,” and
                                                                                                                          b) their aggregate capacity does not exceed 200 000 L.


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 4-51
                                                                                                    4.6.2.2.                                                                                               Division B

                                                                                                                         4) Outside aboveground storage tanks at fuel-dispensing stations shall be provided
                                                                                                                      with
                                                                                                                         a) physical protection against collision damage,
                                                                                                                         b) measures to prevent unauthorized access to the storage tank and its ancillary
                                                                                                                            equipment,
                                                                                                                         c) measures to contain accidental spillage in conformance with
                                                                                                                            Subsection 4.3.7.,
                                                                                                                         d) an overfill protection device in conformance with Sentence 4.3.1.8.(2), where
                                                                                                                            a tight-filled connection is provided, and
                                                                                                                         e) where the piping is connected to the storage tank at a point that is lower
                                                                                                                            than the maximum fill level, an external valve to prevent gravity discharge
                                                                                                                            in the event the piping is severed.




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                                                                                                                         5) In cases where a compartmentalized tank is used, the entire tank shall be
                                                                                                                      treated as one tank with the aggregate of all compartments totaling the total capacity of
                                                                                                                      that tank.

                                                                                                    4.6.2.2.          Containers
                                                                                                                         1) All packaged flammable liquid and combustible liquid products stored or sold
                                                                                                                      at a fuel-dispensing station shall be in closed containers conforming to Article 4.2.3.1.,
                                                                                                                      distinctly marked with the generic name of the liquid they contain.

                                                                                                    4.6.2.3.          Piping
                                                                                                                         1) All piping for flammable liquids or combustible liquids at a fuel-dispensing station
                                                                                                                      shall be in conformance with Article 4.5.2.1.
                                                                                                                         2) Joints in piping systems shall comply with Subsection 4.5.5.
                                                                                                                         3) Underground piping systems shall comply with Sentence 4.5.6.1.(1).
                                                                                                                         4) Piping shall be supported and backfilled in accordance with the manufacturer's
                                                                                                                      instructions.
                                                                                                                         5) In the design of the piping system, provisions shall be made for the expansion,
                                                                                                                      contraction, vibration, settling and temperature changes of piping in accordance with
                                                                                                                      Article 4.5.6.14.

                                                                                                    4.6.2.4.          Corrosion Protection for Piping
                                                                                                                         1) All piping, valves and fittings at a fuel-dispensing station shall be protected
                                                                                                                      against corrosion in conformance with Article 4.5.3.1.

                                                                                                    4.6.2.5.          Piping Supports and Guards
                                                                                                                         1) Piping shall be firmly supported and protected by means of guarding devices
                                                                                                                      where necessary to prevent vehicular, watercraft or floatplane impact damage, or
                                                                                                                      other physical damage.

                                                                                                    4.6.2.6.          Pits
                                                                                                                         1) Pits for subsurface pumps or for piping connected to submersed pumps shall
                                                                                                                      conform to Article 4.5.9.3.

                                                                                                    4.6.3.            Dispensing Systems
                                                                                                    4.6.3.1.          Dispensers
                                                                                                                        1) Fixed dispensers for flammable liquids or combustible liquids shall conform to CSA
                                                                                                                      B346-M, “Power-Operated Dispensing Devices for Flammable Liquids.”

                                                                                                    4.6.3.2.          Dispenser Sumps
                                                                                                                         1) Dispenser sumps shall conform to the construction and performance
                                                                                                                      requirements of ULC/ORD-C107.21, “Under-Dispenser Sumps.”


                                                                                                    4-52 Division B                                                                          National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                  4.6.4.3.

                                                                                                    4.6.3.3.          Location
                                                                                                                         1) Fixed dispensers for Class I liquids shall be installed outside buildings and
                                                                                                                      not less than
                                                                                                                         a) 3 m from any right-of-way and any property line,
                                                                                                                         b) 3 m from any propane gas dispenser,
                                                                                                                          c) 1.5 m from any natural gas dispenser,
                                                                                                                         d) 6 m horizontally from any fixed source of ignition,
                                                                                                                         e) 6 m horizontally from any liquefied petroleum gas cylinder or storage tank,
                                                                                                                              and
                                                                                                                          f) 3 m from any building openings, other than those that serve as shelter
                                                                                                                              for operating personnel and in which electrical installations conform to




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                                                                                                                              Article 4.1.4.1.
                                                                                                                         2) Fixed dispensers for Class II or IIIA liquids are permitted to be installed inside
                                                                                                                      a building when
                                                                                                                          a) the building is not open to the public,
                                                                                                                         b) the dispensers are located on the first storey,
                                                                                                                          c) drainage is provided, and
                                                                                                                         d) ventilation is provided in conformance with Subsection 4.1.7. and with
                                                                                                                              the requirements for storage garages in Subsection 6.3.1. of Division B of
                                                                                                                              the NBC.
                                                                                                                        3) The location of dispensers of Class I liquids within a building shall conform to
                                                                                                                      Subsection 3.3.5. of Division B of the NBC.

                                                                                                    4.6.3.4.          Protection against Collision Damage
                                                                                                                         1) Fixed dispensers shall be protected against collision damage by
                                                                                                                         a) a concrete island not less than 100 mm high, or
                                                                                                                         b) posts or guardrails.

                                                                                                    4.6.3.5.          Marine Fuel-Dispensing Stations
                                                                                                                         1) Dispensers at marine fuel-dispensing stations shall be in a location that will
                                                                                                                      prevent watercraft or floatplane impact, or other physical damage.

                                                                                                    4.6.4.            Shut-off Devices
                                                                                                    4.6.4.1.          Location and Identification
                                                                                                                         1) A device to shut off power to all dispensers and pumps shall be provided at a
                                                                                                                      location not less than 6 m and not more than 30 m away from the dispensers and
                                                                                                                      pumps. (See Note A-4.6.4.1.(1) and (2).)
                                                                                                                         2) The device required in Sentence (1) shall be clearly identified and readily
                                                                                                                      accessible to attendants and emergency responders. (See Note A-4.6.4.1.(1) and (2).)
                                                                                                                         3) Steel shut-off valves shall be provided at connecting outlets on aboveground
                                                                                                                      storage tanks.

                                                                                                    4.6.4.2.          Self-service Outlets
                                                                                                                         1) Except as provided in Sentence (2) and in addition to the device required by
                                                                                                                      Sentence 4.6.4.1.(1), an emergency shut-off switch to simultaneously stop the flow of
                                                                                                                      fuel at all dispensers at self-service outlets shall be located at the central control console
                                                                                                                      described in Sentence 4.6.8.2.(2) so that it is readily accessible to the attendant.
                                                                                                                         2) At card- or key-activated self-service outlets, the emergency shut-off switch
                                                                                                                      required in Sentence (1) shall be readily accessible to the customer.

                                                                                                    4.6.4.3.          Marine Fuel-Dispensing Stations
                                                                                                                         1) At marine fuel-dispensing stations, a readily accessible valve shall be provided in
                                                                                                                      each pipeline at or within 7.5 m of the pier to shut off the supply from shore.


                                                                                                    National Fire Code of Canada 2020                                                                          Division B 4-53
                                                                                                    4.6.5.1.                                                                                               Division B

                                                                                                    4.6.5.            Delivery Hose and Nozzles
                                                                                                    4.6.5.1.          Delivery Hose
                                                                                                                        1) Delivery hose shall conform to CAN/ULC-S612, “Standard for Hose and Hose
                                                                                                                      Assemblies for Flammable and Combustible Liquids.”
                                                                                                                          2) Except as permitted in Sentences (3) and (4), hose through which flammable
                                                                                                                      liquids or combustible liquids are dispensed at a fuel-dispensing station shall be restricted
                                                                                                                      to a maximum extended length of 4.5 m.
                                                                                                                         3) Where a retracting mechanism is used, a maximum extended length of 6 m
                                                                                                                      shall be permitted.




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                                                                                                                         4) At marine fuel-dispensing stations or at card- or key-activated dispensers, the
                                                                                                                      length of extended hose is permitted to exceed the values in Sentences (2) and (3).

                                                                                                    4.6.5.2.          Hose Nozzle Valves
                                                                                                                        1) Every hose nozzle valve through which a Class I or II liquid is dispensed by a
                                                                                                                      motorized dispenser into a vehicle tank shall
                                                                                                                        a) be automatic closing, as required in Sentence (2), and
                                                                                                                        b) conform to CAN/ULC-S620, “Standard for Hose Nozzle Valves for
                                                                                                                            Flammable and Combustible Liquids.”
                                                                                                                         2) Except as provided in Sentences (3) to (5), a hose nozzle valve shall be
                                                                                                                      constructed so that the valve
                                                                                                                         a) can be kept open only by the continuous application of manual pressure, or
                                                                                                                         b) is equipped with a hold-open device that is an integral part of the nozzle
                                                                                                                             and that will
                                                                                                                                i) allow automatic dispensing,
                                                                                                                               ii) automatically shut off when the vehicle tank is filled, and
                                                                                                                              iii) shut off if the nozzle is dropped or falls from the fill pipe.
                                                                                                                         3) A hose nozzle valve at a marine fuel-dispensing station shall be of the type without
                                                                                                                      a hold-open device, in conformance with Clause (2)(a).
                                                                                                                          4) When a hose nozzle valve with a hold-open device is used at an attended
                                                                                                                      self-service outlet, a break-away coupling conforming to CAN/ULC-S644, “Standard
                                                                                                                      for Emergency Breakaway Fittings for Flammable and Combustible Liquids,” shall
                                                                                                                      be provided.
                                                                                                                         5) When the flow of liquid can be stopped other than by the hose nozzle valve, a
                                                                                                                      hose nozzle valve with a hold-open device is permitted to be used only if it is provided
                                                                                                                      with a device that will automatically close the hose nozzle valve upon a drop of
                                                                                                                      pressure in the dispensing hose.

                                                                                                    4.6.6.            Remote Pumping Systems
                                                                                                    4.6.6.1.          Application
                                                                                                                         1) This Subsection shall apply to systems for dispensing flammable liquids or
                                                                                                                      combustible liquids where such liquids are transferred from bulk storage to individual or
                                                                                                                      multiple dispensers by pumps located elsewhere than at the dispensers.

                                                                                                    4.6.6.2.          Pumps and Control Equipment
                                                                                                                         1) Pumps, including associated control equipment, shall be designed so that the
                                                                                                                      system will not be subject to pressures above the design working pressure.
                                                                                                                         2) Pumps shall be securely anchored and protected against damage from vehicles.

                                                                                                    4.6.6.3.          Emergency Valves
                                                                                                                         1) An emergency valve conforming to CAN/ULC-S651, “Standard for Emergency
                                                                                                                      Valves for Flammable and Combustible Liquids,” shall be installed in the supply line
                                                                                                                      so that the shear point of the valve is at a level not higher than the base of the dispenser
                                                                                                                      nor more than 25 mm below it.


                                                                                                    4-54 Division B                                                                          National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                 4.6.8.1.

                                                                                                                         2) The emergency valve required in Sentence (1) shall be maintained in operating
                                                                                                                      condition and serviced at intervals not greater than 12 months.

                                                                                                    4.6.6.4.          Pump Location
                                                                                                                         1) Pumps installed aboveground and outside buildings shall be located not less
                                                                                                                      than
                                                                                                                         a) 3 m from any property line, and
                                                                                                                         b) 1.5 m from any building opening.
                                                                                                                         2) When an outside pump location is impractical, pumps are permitted to be
                                                                                                                      installed inside buildings or in pits as provided in Article 4.6.2.6.




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                                                                                                    4.6.6.5.          Marine Fuel-Dispensing Stations
                                                                                                                         1) Except as permitted in Sentence (2), tanks and pumps not integral with the
                                                                                                                      dispenser at marine fuel-dispensing stations shall be located on the shore or on a pier of
                                                                                                                      the solid-fill type.
                                                                                                                         2) Where shore locations would result in excessively long supply lines to the
                                                                                                                      dispenser, storage tanks are permitted to be installed on a pier, provided that
                                                                                                                         a) the applicable portions of Subsection 4.3.7. relating to spacing, secondary
                                                                                                                             containment and piping are complied with, and
                                                                                                                         b) the quantity stored does not exceed 5 000 L aggregate capacity.
                                                                                                                         3) No storage tank at a marine fuel-dispensing station shall be located closer than
                                                                                                                      4.5 m horizontally from the normal annual high-water mark.
                                                                                                                         4) Storage tanks located on shore and supplying marine fuel-dispensing stations
                                                                                                                      are permitted to be located aboveground where rock or a high water table make
                                                                                                                      underground tanks impracticable.
                                                                                                                         5) Where storage tanks at a marine fuel-dispensing station are elevated above the
                                                                                                                      dispenser, an automatically operated valve that is designed to open only when the
                                                                                                                      dispenser is being operated, so as to prevent gravity draining of the tank in the event of
                                                                                                                      a rupture of the supply line to the dispenser, shall be provided at the storage tank outlet,
                                                                                                                      positioned adjacent to and outside the valve specified in Article 4.3.6.1.
                                                                                                                          6) Piping between storage tanks located on shore and dispensers at a marine
                                                                                                                      fuel-dispensing station shall conform to Section 4.5., except that where dispensing
                                                                                                                      is from a floating structure, it is permitted to use suitable lengths of flexible hose
                                                                                                                      designed in conformance with good engineering practice between the piping on shore
                                                                                                                      and the piping on the floating structure. (See Note A-4.8.8.1.(1)(a).)

                                                                                                    4.6.7.            Spill Control
                                                                                                    4.6.7.1.          Spill Control
                                                                                                                         1) Areas where flammable liquids or combustible liquids are dispensed shall be
                                                                                                                      designed to
                                                                                                                         a) be able to handle accidental spillage in conformance with Subsection 4.1.6.,
                                                                                                                             and
                                                                                                                         b) control a spill of not less than 1 000 L.

                                                                                                    4.6.8.            Supervision and Dispensing Procedures
                                                                                                    4.6.8.1.          Attendants
                                                                                                                        1) Except as provided in Sentences (2) and (5), every fuel-dispensing station shall
                                                                                                                      have at least one attendant referred to in Article 4.6.8.5. on duty when the station is
                                                                                                                      open for business.
                                                                                                                         2) Fuel-dispensing stations that do not serve the general public do not require an
                                                                                                                      attendant.


                                                                                                    National Fire Code of Canada 2020                                                                       Division B 4-55
                                                                                                    4.6.8.2.                                                                                               Division B

                                                                                                                         3) Except as permitted at self-service outlets, a qualified attendant shall be in
                                                                                                                      constant control of the dispensing of Class I and II liquids into the fuel tanks of motor
                                                                                                                      vehicles, watercraft or floatplanes, or into containers.
                                                                                                                         4) Duties of attendants and fuel-dispensing procedures, as stated in
                                                                                                                      Articles 4.6.8.5. and 4.6.8.6., shall be posted at every fuel-dispensing station.
                                                                                                                         5) At fuel-dispensing stations that offer both attended service and self-service,
                                                                                                                      the attendant required in Sentence (1) is permitted to dispense flammable liquids
                                                                                                                      or combustible liquids at an attended service dispenser, provided that there is an
                                                                                                                      additional attendant supervising the activities at the self-service dispensers from
                                                                                                                      a location in close proximity to one of the emergency shut-off devices required in




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                                                                                                                      Sentences 4.6.4.1.(1) and 4.6.4.2.(1).

                                                                                                    4.6.8.2.          Self-service Outlets
                                                                                                                         1) Instructions for the operation of dispensers at self-service outlets shall be posted
                                                                                                                      in a conspicuous location.
                                                                                                                         2) A control console shall be provided at self-service outlets within 25 m of all
                                                                                                                      dispensers so that the attendant has an unobstructed view of all units at the same time.
                                                                                                                         3) The control console referred to in Sentence (2) shall be equipped to regulate
                                                                                                                      the operation of each dispenser.
                                                                                                                          4) A 2-way communication system between the control console and each pump
                                                                                                                      island shall be provided at self-service outlets.

                                                                                                    4.6.8.3.          Special Dispensers
                                                                                                                         1) Except as provided in Article 4.6.8.4. for card- or key-activated equipment,
                                                                                                                      special dispensers, including coin-operated, card-operated and preset units, shall
                                                                                                                      not be permitted at self-service outlets unless there is at least one qualified attendant
                                                                                                                      on duty for each 12 hoses that can be operated simultaneously while the outlet is
                                                                                                                      open to the public.

                                                                                                    4.6.8.4.          Card- or Key-Activated Dispensers
                                                                                                                         1) Card- or key-activated dispensers are permitted at unattended self-service outlets
                                                                                                                      and fuel-dispensing stations that are not open to the general public, in conformance with
                                                                                                                      Sentences (2) to (6). (See Note A-4.6.8.4.(1).)
                                                                                                                         2) Except as provided in Sentences (3) to (6), the installation of card- or
                                                                                                                      key-activated dispensers shall conform to the requirements for self-service outlets and
                                                                                                                      fuel-dispensing stations in this Section.
                                                                                                                         3) Operation of card- or key-activated dispensers shall be restricted to persons
                                                                                                                      authorized by the supply agent to possess a card or key to operate the dispensers.
                                                                                                                         4) Clearly legible operating instructions, visible at all times, shall be posted at
                                                                                                                      every dispenser island.
                                                                                                                         5) A telephone or other clearly identified means to notify the fire department shall
                                                                                                                      be provided in a location readily accessible to the user.
                                                                                                                         6) Emergency instructions, including the telephone number of the local fire
                                                                                                                      department, shall be conspicuously posted to advise the user, in the event of a spill or
                                                                                                                      accident,
                                                                                                                          a) to use the emergency shut-off switch required in Article 4.6.4.2., and
                                                                                                                         b) to call the fire department.

                                                                                                    4.6.8.5.          Duties of Attendants
                                                                                                                         1) Attendants on duty at fuel-dispensing stations shall
                                                                                                                         a) supervise the dispensing of flammable liquids and combustible liquids,
                                                                                                                         b) activate the controls to permit the dispensing of fuel at an individual
                                                                                                                            dispenser only after the customer at the unit is ready to activate the nozzle,


                                                                                                    4-56 Division B                                                                           National Fire Code of Canada 2020
                                                                                                    Division B                                                                                              4.6.8.8.

                                                                                                                         c) prevent the dispensing of flammable liquids and combustible liquids into
                                                                                                                            containers that
                                                                                                                               i) do not conform to Article 4.2.3.1., or
                                                                                                                              ii) are in a vehicle,
                                                                                                                         d) take appropriate measures to prevent sources of ignition from creating a
                                                                                                                            hazard at the dispensers,
                                                                                                                         e) take appropriate action in the event of a spill to reduce the risk of fire,
                                                                                                                         f) shut off the power to all dispensers in the event of a spill or fire, and
                                                                                                                         g) perform routine visual inspections in accordance with Article 4.5.10.5.
                                                                                                                         2) In addition to the requirements in Sentence (1), attendants on duty at marine
                                                                                                                      fuel-dispensing stations shall




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                                                                                                                          a) activate the controls to permit the dispensing of fuel at an individual
                                                                                                                              dispenser only after all ports and hatches on the watercraft have been
                                                                                                                              closed, and
                                                                                                                          b) ensure that containers for flammable liquids and combustible liquids,
                                                                                                                                 i) are not filled beyond their safe filling level, and
                                                                                                                                ii) are filled only after they have been removed from the
                                                                                                                                    watercraft or floatplane.
                                                                                                                         3) Attendants shall be trained on how to conduct their duties.

                                                                                                    4.6.8.6.          Fuel-Dispensing Procedures
                                                                                                                         1) Except as provided in Sentence (2), flammable liquids and combustible liquids
                                                                                                                      shall not be dispensed into the fuel tank of a motor vehicle, watercraft or floatplane
                                                                                                                      while the engine is running.
                                                                                                                         2) A Class II or IIIA liquid is permitted to be dispensed into the fuel tank of a
                                                                                                                      motor vehicle while its engine is running, provided the liquid is dispensed not less
                                                                                                                      than 6 m away from any Class I liquid dispenser. (See Note A-4.6.8.6.(2).)
                                                                                                                          3) Class I and II liquids shall not be dispensed at a fuel-dispensing station into the
                                                                                                                      fuel tank of a motor vehicle while any part of the motor vehicle or any vehicle attached
                                                                                                                      to it is on a street.
                                                                                                                         4) Every person dispensing flammable liquids and combustible liquids shall
                                                                                                                         a) take precautions to prevent overflow or spillage of the liquid being
                                                                                                                             dispensed,
                                                                                                                         b) not knowingly overfill the fuel system,
                                                                                                                         c) except as otherwise stated in Article 4.6.8.5., in the event of spillage,
                                                                                                                             immediately apply an absorbent material to soak up the spillage in
                                                                                                                             conformance with Article 4.1.6.3.,
                                                                                                                         d) not dispense Class I or II liquids in proximity to open sources of ignition,
                                                                                                                         e) not use any object or device that is not an integral part of the hose nozzle
                                                                                                                             valve assembly to maintain the flow of fuel, and
                                                                                                                          f) not dispense the liquids into containers that are in a vehicle, watercraft
                                                                                                                             or floatplane.

                                                                                                    4.6.8.7.          Sources of Ignition
                                                                                                                         1) Smoking and non-fixed sources of ignition shall not be permitted within 7.5 m
                                                                                                                      of a dispenser at a fuel-dispensing station.

                                                                                                    4.6.8.8.          Signs
                                                                                                                         1) At least one weather-resistant sign conforming to Sentences (2) to (4) shall
                                                                                                                      be provided for each dispenser in a location visible to every driver approaching the
                                                                                                                      dispenser.
                                                                                                                          2) The sign required in Sentence (1) shall indicate that smoking is not permitted in
                                                                                                                      the vicinity of the dispenser and that the ignition must be turned off while the vehicle
                                                                                                                      is being refuelled. (See Note A-4.6.8.8.(2).)


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 4-57
                                                                                                    4.6.8.9.                                                                                            Division B

                                                                                                                         3) The sign required in Sentence (1) shall
                                                                                                                         a) have a minimum dimension of 200 mm, and
                                                                                                                         b) except as permitted in Sentence (4), have letters not less than 25 mm high.
                                                                                                                        4) The sign required in Sentence (1) is permitted to display the international “No
                                                                                                                      Smoking – Ignition Off” symbol not less than 100 mm in diameter.

                                                                                                    4.6.8.9.          Training Procedures
                                                                                                                          1) Personnel involved in the transfer operations of flammable liquids or combustible
                                                                                                                      liquids shall be trained in accordance with Article 4.5.10.2.




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                                                                                                    4.6.9.            Fire Prevention and Protection
                                                                                                    4.6.9.1.          Portable Extinguishers
                                                                                                                         1) At least 2 portable extinguishers, each having a rating of not less than 40-B:C,
                                                                                                                      shall be provided at every fuel-dispensing station.

                                                                                                    4.6.9.2.          Absorbent Materials
                                                                                                                         1) Absorbent material to soak up liquid spillage shall be provided for use by
                                                                                                                      attendants at fuel-dispensing stations in conformance with Article 4.1.6.3.


                                                                                                    Section 4.7. Bulk Plants
                                                                                                    4.7.1.            Scope
                                                                                                    4.7.1.1.          Application
                                                                                                                         1) This Section shall apply to that portion of a property where flammable liquids
                                                                                                                      or combustible liquids are received in bulk quantities and are stored or handled for
                                                                                                                      the purpose of being distributed.

                                                                                                    4.7.2.            Storage
                                                                                                    4.7.2.1.          Storage
                                                                                                                         1) Flammable liquids and combustible liquids shall be stored in
                                                                                                                         a) closed containers, in conformance with Article 4.7.2.4., or
                                                                                                                         b) storage tanks, in conformance with Section 4.3.

                                                                                                    4.7.2.2.          Storage Tanks
                                                                                                                          1) At bulk plant rail loading and unloading facilities, the minimum distance from
                                                                                                                      a storage tank to a railway line shall be in conformance with TC General Order No.
                                                                                                                      O-32, C.R.C., c. 1148, “Flammable Liquids Bulk Storage Regulations.”

                                                                                                    4.7.2.3.          Hydraulic Pressure Shock
                                                                                                                         1) Bulk storage tanks, piping, pumps, valves and associated components shall
                                                                                                                      be designed, installed and maintained to accommodate hydraulic pressure shock
                                                                                                                      on the system.

                                                                                                    4.7.2.4.          Container Storage
                                                                                                                         1) Containers for flammable liquids or combustible liquids stored indoors shall be
                                                                                                                      stored in conformance with Subsection 4.2.7.
                                                                                                                         2) Containers for flammable liquids or combustible liquids stored outdoors shall
                                                                                                                      be stored in conformance with Subsection 4.2.11., except that the distance between
                                                                                                                      the piles and property lines and the distance between piles need not apply when
                                                                                                                      the containers are stored in an area that does not present a hazard to neighbouring
                                                                                                                      property.


                                                                                                    4-58 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                4.7.4.3.

                                                                                                    4.7.2.5.          Spill Control
                                                                                                                         1) An outdoor storage area shall be designed to accommodate accidental spillage
                                                                                                                      in conformance with Subsection 4.1.6.

                                                                                                    4.7.2.6.          Fencing
                                                                                                                         1) The outdoor area occupied by aboveground storage tanks, container storage,
                                                                                                                      ancillary equipment and unloading facilities shall be fenced in conformance with
                                                                                                                      Article 3.3.2.6.

                                                                                                    4.7.3.            Dispensing




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                                                                                                    4.7.3.1.          Interconnection
                                                                                                                         1) Dispensing systems for Class I liquids shall not be interconnected with
                                                                                                                      dispensing systems for Class II and IIIA liquids.

                                                                                                    4.7.3.2.          Dispensing into Vehicles
                                                                                                                         1) Dispensers used by the general public to dispense flammable liquids or
                                                                                                                      combustible liquids into the fuel tanks of vehicles shall not be located at a bulk plant
                                                                                                                      unless separated by a fence or equivalent barrier from the area in which the bulk
                                                                                                                      storage operations are conducted.
                                                                                                                         2) Where a dispenser referred to in Sentence (1) is supplied from an aboveground
                                                                                                                      storage tank,
                                                                                                                          a) an automatically operated valve that is designed to open only when the
                                                                                                                              dispenser is being operated shall be provided at the tank outlet, and
                                                                                                                          b) an emergency valve shall be provided for the dispenser in conformance
                                                                                                                              with Sentence 4.6.6.3.(1).

                                                                                                    4.7.3.3.          Dispensing into Metal Containers or Tanks
                                                                                                                         1) Class I liquids shall not be dispensed into a metal container or storage tank
                                                                                                                      unless it is electrically connected in conformance with Article 4.1.8.2.

                                                                                                    4.7.4.            Loading and Unloading Facilities
                                                                                                                      (See Note A-4.7.4.)

                                                                                                    4.7.4.1.          Clearances
                                                                                                                         1) At a loading or unloading facility for tank vehicles or tank cars, the horizontal
                                                                                                                      distance from the fill stem to an aboveground storage tank, a building or a property
                                                                                                                      line shall be not less than
                                                                                                                          a) 7.5 m for Class I liquids, and
                                                                                                                          b) 4.5 m for Class II and IIIA liquids.
                                                                                                                          2) At bulk plant rail loading and unloading facilities, the minimum distance from
                                                                                                                      a loading structure to a railway line shall be in conformance with TC General Order
                                                                                                                      No. O-32, C.R.C., c. 1148, “Flammable Liquids Bulk Storage Regulations.”
                                                                                                                         3) Buildings for the shelter of personnel or pumps shall be considered a part of
                                                                                                                      the loading or unloading facility.

                                                                                                    4.7.4.2.          Multi-purpose Facilities
                                                                                                                         1) When piping and pumping systems have been used for the transfer of either
                                                                                                                      flammable liquids or combustible liquids at loading or unloading facilities, the system shall
                                                                                                                      be cleaned of vapours before the other class of liquid is introduced.

                                                                                                    4.7.4.3.          Check Valves
                                                                                                                         1) Systems through which tank cars or tank vehicles discharge into aboveground
                                                                                                                      storage tanks by means of pumps shall be provided with check valves to prevent
                                                                                                                      backflow and the inadvertent mixing of liquids.


                                                                                                    National Fire Code of Canada 2020                                                                        Division B 4-59
                                                                                                    4.7.4.4.                                                                                              Division B

                                                                                                                         2) Systems referred to in Sentence (1) shall be designed, installed and maintained
                                                                                                                      to prevent leakage or spillage.

                                                                                                    4.7.4.4.          Control Valves
                                                                                                                         1) Valves installed to control the filling of tank vehicles or tank cars shall be of
                                                                                                                      the self-closing type.
                                                                                                                         2) Control valves referred to in Sentence (1) shall be held open manually, except
                                                                                                                      where automatic devices are provided for shutting off the flow in order to prevent the
                                                                                                                      overfilling of tank vehicle or tank car compartments. (See Note A-4.7.4.4.(2).)

                                                                                                    4.7.4.5.          Bonding and Grounding




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                                                                                                                      (See Note A-4.7.4.5.)
                                                                                                                         1) Bonding, grounding and isolation components for protection against static
                                                                                                                      charges during the loading or unloading of tank vehicles or tank cars shall be provided
                                                                                                                      when transferring flammable liquids or combustible liquids.
                                                                                                                          2) Where flammable liquids or combustible liquids are transferred from or into
                                                                                                                      railway tank cars, the railway tracks shall be bonded throughout their length and
                                                                                                                      permanently grounded in conformance with TC SOR/82-1015, “Railway Prevention
                                                                                                                      of Electric Sparks Regulations.”
                                                                                                                          3) Bonding required in Sentence (1) shall consist of a metallic bond wire connected
                                                                                                                      to the fill stem or to some part of the loading or unloading structure that is in electrical
                                                                                                                      contact with the fill stem in conformance with Subsection 4.1.4.
                                                                                                                         4) Bonding wires for tank vehicles shall be provided with a pull-off connector
                                                                                                                      attached so as to be in electrical contact with the cargo tank of the tank vehicle.
                                                                                                                         5) The bonding connection required in Sentence (1) shall be fixed to the tank vehicle
                                                                                                                      or storage tank before dome covers are raised and shall remain in place until filling is
                                                                                                                      completed and all dome covers have been closed and secured.

                                                                                                    4.7.4.6.          Downspouts
                                                                                                                          1) Except as provided in Sentence 4.1.8.2.(3), when tank vehicles or tank cars are
                                                                                                                      filled with Class I or II liquids through the top of the tank, the fill pipe shall terminate
                                                                                                                      within 150 mm of the bottom of the tank.

                                                                                                    4.7.5.            Fire Protection
                                                                                                    4.7.5.1.          Portable Extinguishers
                                                                                                                         1) At least 2 portable extinguishers, each having a rating of not less than 80-B:C,
                                                                                                                      shall be provided at hazardous locations in bulk storage plants for flammable liquids
                                                                                                                      and combustible liquids.

                                                                                                    4.7.6.            Spill Control
                                                                                                    4.7.6.1.          Spill Control
                                                                                                                         1) Facilities to control possible spills of flammable liquids or combustible liquids shall
                                                                                                                      be provided at loading and unloading points, in conformance with Subsection 4.1.6.


                                                                                                    Section 4.8. Piers and Wharves
                                                                                                    4.8.1.            Scope
                                                                                                    4.8.1.1.          Application
                                                                                                                         1) This Section applies to flammable liquid and combustible liquid installations on
                                                                                                                      piers and wharves, but does not include marine fuel-dispensing stations.


                                                                                                    4-60 Division B                                                                          National Fire Code of Canada 2020
                                                                                                    Division B                                                                                             4.8.4.4.

                                                                                                    4.8.2.            General
                                                                                                    4.8.2.1.          Clearances
                                                                                                                         1) Piers and wharves where cargos of flammable liquids or combustible liquids are
                                                                                                                      transferred in bulk quantities to or from tanks of marine vessels shall be not less than
                                                                                                                      30 m from
                                                                                                                          a) any bridge over a navigable waterway, and
                                                                                                                          b) an entrance to a superstructure of any vehicular or railroad tunnel under
                                                                                                                             a waterway.
                                                                                                                         2) The termination of fixed piping for loading and unloading flammable liquids or
                                                                                                                      combustible liquids shall be not less than 60 m from a bridge or from an entrance to




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                                                                                                                      a tunnel.

                                                                                                    4.8.2.2.          Construction
                                                                                                                         1) The substructure and deck of a pier or wharf shall be designed for its intended
                                                                                                                      use and shall be constructed of heavy timber or material that will provide adequate
                                                                                                                      flexibility, resistance to shock, durability, strength and fire resistance.

                                                                                                    4.8.3.            Storage Tanks
                                                                                                    4.8.3.1.          Installation
                                                                                                                         1) Except as permitted in Sentences (2) and (3), storage tanks shall be installed on
                                                                                                                      shore in conformance with Subsections 4.3.2. to 4.3.7.
                                                                                                                         2) Storage tanks are permitted to be located in buildings on piers and wharves of
                                                                                                                      solid-fill or noncombustible construction, provided they conform to Subsections 4.3.13.
                                                                                                                      to 4.3.15.
                                                                                                                         3) Storage tanks are permitted to be buried in piers and wharves of the solid-fill
                                                                                                                      type, provided they conform to Subsections 4.3.8. to 4.3.12.

                                                                                                    4.8.4.            Piping, Valves and Fittings
                                                                                                    4.8.4.1.          Installation and Materials
                                                                                                                         1) The method of installation and materials used for piping, valves and fittings
                                                                                                                      shall conform to Section 4.5.

                                                                                                    4.8.4.2.          Pipe Supports
                                                                                                                         1) Piping shall be properly supported and arranged to prevent excessive vibration
                                                                                                                      or strain on equipment connected to it.
                                                                                                                         2)   Piping supports shall consist of
                                                                                                                         a)   wood having no dimension less than 140 mm,
                                                                                                                         b)   steel, or
                                                                                                                         c)   concrete.
                                                                                                                         3) Where pipe is supported more than 1.2 m above the pier deck, piping supports
                                                                                                                      shall have a minimum fire-resistance rating of 2 h.

                                                                                                    4.8.4.3.          Guards
                                                                                                                         1) In areas where general cargo is handled or where piping might be subject to
                                                                                                                      physical damage from vehicles, watercraft or floatplanes, the piping shall be protected
                                                                                                                      by means of guarding devices.

                                                                                                    4.8.4.4.          Flexible Connections
                                                                                                                         1) Piping between the shore and piers or wharves shall be provided with swing
                                                                                                                      joints or flexible connections designed in conformance with good engineering practice
                                                                                                                      to permit the independent movement of the pier or wharf and shore piping without
                                                                                                                      strain on the pipe.


                                                                                                    National Fire Code of Canada 2020                                                                     Division B 4-61
                                                                                                    4.8.4.5.                                                                                            Division B

                                                                                                    4.8.4.5.          Shut-off Valves

                                                                                                                         1) A readily accessible valve to shut off the supply from shore shall be provided in
                                                                                                                      each pipeline within 7.5 m of piers and wharves.

                                                                                                    4.8.4.6.          Access Openings for Inspection

                                                                                                                         1) Access openings for inspection purposes below deck shall be provided for
                                                                                                                      valves required in Article 4.8.4.5. and for connections to pipelines, and suitable signs
                                                                                                                      shall be posted indicating their locations.

                                                                                                                         2) No freight or materials shall be placed on piers and wharves in such a manner




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                                                                                                                      as to obstruct the access openings required in Sentence (1).

                                                                                                    4.8.4.7.          Identification

                                                                                                                          1) Identification tags or labels of metal or other material impervious to water and
                                                                                                                      to the flammable liquids or combustible liquids being transferred shall be attached to and
                                                                                                                      maintained on all pipelines and control valves to designate their use.

                                                                                                    4.8.4.8.          Leakage Testing

                                                                                                                         1) Piping systems shall be tested for leakage in conformance with Section 4.4.
                                                                                                                      before being put into service and before reactivation when used on a seasonal basis.

                                                                                                                         2) Underground piping systems referred to in Sentence (1) shall be tested at
                                                                                                                      intervals no greater than 12 months.

                                                                                                    4.8.5.            Bonding and Grounding

                                                                                                    4.8.5.1.          Bonding and Grounding

                                                                                                                         1) Railway tracks on piers and wharves shall be bonded throughout their
                                                                                                                      length and permanently grounded in conformance with TC SOR/82-1015, “Railway
                                                                                                                      Prevention of Electric Sparks Regulations.”

                                                                                                                        2) Insulating joints shall be placed in all rails where entering upon the pier or
                                                                                                                      wharf.

                                                                                                    4.8.6.            Fire Protection

                                                                                                    4.8.6.1.          Portable Extinguishers

                                                                                                                         1) Portable extinguishers having a rating of 40-B:C shall be provided in the vicinity
                                                                                                                      of Class I liquid pumps and fuel dispensers.

                                                                                                                          2) Portable extinguishers shall be kept in the pump house or other suitable
                                                                                                                      location where they will be accessible in the event of an emergency, but not accessible
                                                                                                                      to the public.

                                                                                                                          3) Where marine vessels are loading or unloading flammable liquids or combustible
                                                                                                                      liquids or are being refuelled, portable extinguishers with a rating of not less than
                                                                                                                      40-B:C shall be placed on the pier or wharf in the vicinity of loading or unloading
                                                                                                                      operations so that they are accessible in the event of a fire emergency.

                                                                                                                        4) Portable extinguishers provided in conformance with Sentence (3) shall be in
                                                                                                                      addition to those provided on board the marine vessels.

                                                                                                    4.8.6.2.          Training

                                                                                                                        1) Operating personnel shall be trained on how to summon the nearest fire
                                                                                                                      department in the event of fire.


                                                                                                    4-62 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                             4.8.9.2.

                                                                                                    4.8.7.            Bulk Transfer Stations
                                                                                                    4.8.7.1.          Location
                                                                                                                         1) Except as permitted in Sentence (2), the bulk transfer of flammable liquids or
                                                                                                                      combustible liquids shall be permitted only on piers and wharves used exclusively for
                                                                                                                      that purpose.
                                                                                                                         2) Where it is not practicable to locate bulk transfer stations on separate piers
                                                                                                                      and wharves, such stations are permitted to be located on general purpose piers and
                                                                                                                      wharves, provided that guards or fences are installed around valves or pumping
                                                                                                                      equipment to prevent entry of unauthorized personnel.




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                                                                                                    4.8.7.2.          Leakage and Spill Control
                                                                                                                         1) Measures to accommodate possible leakage or spillage from hose couplings
                                                                                                                      shall be provided in conformance with Subsection 4.1.6.
                                                                                                                         2) Provision shall be made to prevent spillage resulting from the disconnection
                                                                                                                      of hoses.

                                                                                                    4.8.7.3.          Hose Connections
                                                                                                                         1) Except as provided in Sentence (2), hose connections on piping shall be of the
                                                                                                                      bolted flange type, and all such connections shall be provided with shut-off valves.
                                                                                                                         2) The use of cam-locking connections up to 105 mm in size shall be permitted.
                                                                                                                         3) Hose connections shall not project beyond the face of piers and wharves.

                                                                                                    4.8.8.            Cargo Hose
                                                                                                    4.8.8.1.          Cargo Hose
                                                                                                                         1) The transfer of flammable liquids or combustible liquids between tanks of marine
                                                                                                                      vessels and piers or wharves shall be through
                                                                                                                         a) flexible cargo hose designed in conformance with good engineering practice
                                                                                                                             (see Note A-4.8.8.1.(1)(a)), or
                                                                                                                         b) jointed tubing or piping
                                                                                                                                i) suitable for the cargo to be transferred, and
                                                                                                                               ii) designed to withstand the maximum design working
                                                                                                                                   pressure.

                                                                                                    4.8.8.2.          Maintenance and Testing
                                                                                                                         1) Cargo hose shall be maintained in satisfactory operating condition and be
                                                                                                                      pressure tested at intervals not greater than 12 months to 1.5 times the maximum
                                                                                                                      working pressure but not less than 350 kPa (gauge).

                                                                                                    4.8.8.3.          Supports
                                                                                                                         1) Cargo hose shall be supported where it is not run on a solid foundation.

                                                                                                    4.8.9.            Cargo Pumps
                                                                                                    4.8.9.1.          Pressure Relief
                                                                                                                         1) Cargo pumps capable of producing pressures in excess of the safe working
                                                                                                                      pressure of the cargo hose shall be provided with pressure relief devices, such as
                                                                                                                      return lines or relief valves.

                                                                                                    4.8.9.2.          Location
                                                                                                                         1) Except as permitted in Sentence (2), cargo pumps shall be located
                                                                                                                         a) on shore or on piers and wharves either of noncombustible construction or of
                                                                                                                            the solid-fill type, and
                                                                                                                         b) not less than 3 m from other buildings or structures.


                                                                                                    National Fire Code of Canada 2020                                                                   Division B 4-63
                                                                                                    4.8.10.1.                                                                                          Division B

                                                                                                                         2) Where it is not practicable to install cargo pumps as required in Sentence (1),
                                                                                                                      they are permitted to be installed on piers and wharves of combustible construction if
                                                                                                                      located in pump houses
                                                                                                                          a) conforming to Subsection 4.8.10., and
                                                                                                                         b) located not less than 3 m from other buildings.

                                                                                                    4.8.10.           Pump Houses
                                                                                                    4.8.10.1.         Construction
                                                                                                                         1) Pump houses shall be of noncombustible construction with floors that are




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                                                                                                                      chemically resistant to the liquid being handled, liquid-tight and equipped with curbs
                                                                                                                      or flashings around the base of the wall not less than 100 mm in height to contain
                                                                                                                      any spilled liquid.

                                                                                                    4.8.11.           Transfer Operations
                                                                                                    4.8.11.1.         Supervision
                                                                                                                         1) Transfer operations shall be carried out only under the continuous supervision
                                                                                                                      of a person qualified to supervise such operations.
                                                                                                                         2) Cargo shall not be transferred to or from the tank of a marine vessel unless
                                                                                                                      sufficient personnel are on board to control the operation.
                                                                                                                         3) The person responsible for directing the operations shall
                                                                                                                         a) prior to the transfer of cargo, ascertain that no unauthorized repair work is
                                                                                                                            being carried out on the pier or wharf and that there are no open flames in
                                                                                                                            the vicinity,
                                                                                                                         b) during the transfer of cargo, monitor the progress of the loading and
                                                                                                                            unloading to prevent overflow, and
                                                                                                                         c) inspect the hose and connections for leakage and, if leakage occurs, stop
                                                                                                                            the operations.

                                                                                                    4.8.11.2.         Bonding and Grounding
                                                                                                                          1) Tanks of marine vessels shall be electrically connected to the shore piping prior
                                                                                                                      to the connection of cargo hose, except when cathodic protection facilities are operating.
                                                                                                                         2) Electrical connections to tanks of marine vessels shall be maintained until the
                                                                                                                      cargo hose has been disconnected and any spillage has been removed.

                                                                                                    4.8.11.3.         Equipment
                                                                                                                         1) Cargo hose shall be of adequate length to allow for movement of the marine
                                                                                                                      vessel.
                                                                                                                         2) Gaskets shall be used in all hose joints and pipe couplings to prevent leakage.
                                                                                                                         3) Flanged joints shall be tightly bolted to prevent leakage.
                                                                                                                        4) Drip pans shall be placed under hose connections on piers and wharves, except
                                                                                                                      where a sump pit or settling basin is provided.

                                                                                                    4.8.11.4.         Spill Control
                                                                                                                         1) When transfer operations are completed,
                                                                                                                         a) the valves on the hose connections shall be closed, and
                                                                                                                         b) unless the cargo hose is equipped with a device that automatically prevents
                                                                                                                            liquid from draining from the hose upon its disconnection, the hose shall be
                                                                                                                            drained so as not to create a fire or explosion hazard.
                                                                                                                        2) Care shall be taken that no liquid is discharged on a pier or wharf or overboard
                                                                                                                      during draining and emptying operations.


                                                                                                    4-64 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                 4.9.3.4.

                                                                                                    Section 4.9. Process Plants
                                                                                                    4.9.1.            Scope
                                                                                                    4.9.1.1.          Application
                                                                                                                         1) Except as provided in Sentence (2), this Section applies to process plants,
                                                                                                                      including refineries, that contain industrial processes involving flammable liquids or
                                                                                                                      combustible liquids.
                                                                                                                         2) This Section does not apply to distilleries covered in Section 4.10.




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                                                                                                    4.9.2.            Outdoor Processing Equipment
                                                                                                    4.9.2.1.          Location
                                                                                                                          1) The location of outdoor processing equipment in process plants shall be based on
                                                                                                                      its flammable liquid or combustible liquid capacity as described in Sentences (2) to (4).
                                                                                                                         2) Except as provided in Sentence (4), outdoor processing equipment having
                                                                                                                      emergency relief venting and a working pressure of not more than 17 kPa (gauge) shall
                                                                                                                      be separated from property lines and buildings on the same property by distances
                                                                                                                          a) equal to those in Table 4.3.2.1. for stable liquids, and
                                                                                                                          b) 2.5 times those in Table 4.3.2.1. for unstable liquids.
                                                                                                                         3) Except as provided in Sentence (4), outdoor processing equipment having
                                                                                                                      emergency relief venting and a working pressure more than 17 kPa (gauge) shall be
                                                                                                                      separated from property lines and buildings on the same property by distances
                                                                                                                         a) 1.5 times those in Table 4.3.2.1. for stable liquids, and
                                                                                                                         b) 4 times those in Table 4.3.2.1. for unstable liquids.
                                                                                                                         4) Where protection is not provided against fires or explosions in processing
                                                                                                                      equipment, the distances in Sentences (2) and (3) shall be doubled. (See
                                                                                                                      Sentence 4.3.2.5.(2).)

                                                                                                    4.9.3.            Processing Buildings
                                                                                                    4.9.3.1.          Explosion Venting
                                                                                                                         1) Except as provided in Article 4.9.4.2., where Class IA liquids or unstable liquids
                                                                                                                      are processed within a room or a building, the room or building shall be designed to
                                                                                                                      prevent critical structural and mechanical damage from an internal explosion in
                                                                                                                      conformance with NFPA 68, “Standard on Explosion Protection by Deflagration
                                                                                                                      Venting.” (See Note A-3.2.8.2.(1)(d).)

                                                                                                    4.9.3.2.          Fire Separations
                                                                                                                         1) Areas where unstable liquids are handled or where small scale unit chemical
                                                                                                                      processes occur shall conform to Article 3.3.6.8. of Division B of the NBC.

                                                                                                    4.9.3.3.          Basements and Pits
                                                                                                                         1) Process plants where Class I and II liquids are handled shall not have basements
                                                                                                                      or covered pits.

                                                                                                    4.9.3.4.          Ventilation
                                                                                                                         1) Equipment used in a building and the ventilation of the building shall be
                                                                                                                      designed so as to limit flammable vapour-air mixtures under normal operating
                                                                                                                      conditions to the interior of equipment, and to not more than 1.5 m from such
                                                                                                                      equipment. (See Note A-4.9.3.4.(1).)


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 4-65
                                                                                                    4.9.4.1.                                                                                             Division B

                                                                                                    4.9.4.            Fire Prevention and Protection
                                                                                                    4.9.4.1.          Spill and Vapour Control
                                                                                                                         1) Processing equipment shall be designed and arranged to
                                                                                                                         a) prevent the unintentional escape of liquids and vapours, and
                                                                                                                         b) minimize the quantity escaping in the event of accidental release.

                                                                                                    4.9.4.2.          Explosion Protection
                                                                                                                         1) Processing equipment where an explosion hazard is present shall be
                                                                                                                         a) designed to withstand the explosion pressure without damage to the




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                                                                                                                            equipment,
                                                                                                                         b) provided with explosion venting in conformance with NFPA 68, “Standard
                                                                                                                            on Explosion Protection by Deflagration Venting,” or
                                                                                                                         c) provided with an explosion prevention system in conformance with NFPA
                                                                                                                            69, “Standard on Explosion Prevention Systems.”

                                                                                                    4.9.4.3.          Fire Protection
                                                                                                                         1)    The risks of fire and explosion at process plants shall be evaluated based on
                                                                                                                         a)    material properties,
                                                                                                                         b)    material quantities,
                                                                                                                         c)    operating conditions,
                                                                                                                         d)    arrangement of stored materials,
                                                                                                                         e)    transportation of materials,
                                                                                                                          f)   process design, and
                                                                                                                         g)    operating and maintenance procedures.
                                                                                                                         2) Based on the evaluation required in Sentence (1), measures to minimize the
                                                                                                                      occurrence of fires and explosions and to mitigate their effects shall be identified.
                                                                                                                         3) Where the process warrants protection, process plants shall be supplied with
                                                                                                                         a) water supplies of adequate pressure and quantity to meet the probable
                                                                                                                            fire demands,
                                                                                                                         b) hydrants,
                                                                                                                         c) hoses connected to a permanent water supply and located so that all
                                                                                                                            equipment containing flammable liquids or combustible liquids, including
                                                                                                                            pumps, can be reached with at least one hose stream, and
                                                                                                                         d) fire protection systems conforming to Part 2.

                                                                                                    4.9.4.4.          Emergency Procedures
                                                                                                                          1) Emergency procedures conforming to Article 4.1.5.5. shall be established for
                                                                                                                      refineries and process plants.


                                                                                                    Section 4.10. Distilleries
                                                                                                    4.10.1.           Scope
                                                                                                    4.10.1.1.         Application
                                                                                                                          1) This Section applies only to those areas or buildings in distilleries where
                                                                                                                      distilled beverage alcohols are concentrated, blended, mixed, stored or packaged. (See
                                                                                                                      Note A-4.10.1.1.(1).)
                                                                                                                         2) The storage, handling and use of flammable liquids or combustible liquids other
                                                                                                                      than distilled beverage alcohols in a distillery shall conform to Part 4.
                                                                                                                         3) Where there is a conflict between the requirements of this Section and other
                                                                                                                      requirements in Part 4, this Section shall govern.


                                                                                                    4-66 Division B                                                                         National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                4.10.6.1.

                                                                                                    4.10.2.           General
                                                                                                    4.10.2.1.         Building Classification
                                                                                                                          1) Except as provided in Sentence (2), buildings or parts of buildings in which
                                                                                                                      distilled beverage alcohol is distilled, processed or stored in bulk shall be classified as
                                                                                                                      high-hazard industrial occupancies.
                                                                                                                         2) Buildings or parts of buildings used for the storage of closed containers of distilled
                                                                                                                      beverage alcohols shall be classified as medium-hazard industrial occupancies.

                                                                                                    4.10.3.           Storage Tanks and Containers




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                                                                                                    4.10.3.1.         Design, Fabrication and Testing
                                                                                                                         1) Storage tanks, wooden vats, barrels, drums or containers used for the storage or
                                                                                                                      processing of distilled beverage alcohols shall be designed, fabricated and tested for the
                                                                                                                      anticipated maximum working pressure, operating temperature, internal corrosion
                                                                                                                      conditions and structural stresses to which they could be subjected.

                                                                                                    4.10.3.2.         Supports, Foundations and Anchorage
                                                                                                                      (See Note A-4.10.3.2.)
                                                                                                                        1) Supports, foundations and anchorage of storage tanks shall comply with
                                                                                                                      Subsection 4.3.3., except that timber supports shall be permitted.
                                                                                                                         2) Storage tank supports having less than a 2 h fire-resistance rating shall be
                                                                                                                      protected by an automatic fire suppression system.
                                                                                                                         3) The area underneath any storage tank greater than 1.2 m in diameter shall be
                                                                                                                      protected by an automatic fire suppression system.

                                                                                                    4.10.3.3.         Storage Tank Vents
                                                                                                                         1) Normal and emergency vents shall be provided on storage tanks in conformance
                                                                                                                      with good engineering practice. (See Note A-4.10.3.3.(1).)

                                                                                                    4.10.4.           Storage
                                                                                                    4.10.4.1.         Storage Tanks, Drums and Barrels
                                                                                                                         1) Where more than 25 000 L of distilled beverage alcohol in storage tanks, drums or
                                                                                                                      barrels are stored inside buildings, such buildings shall be sprinklered.

                                                                                                    4.10.4.2.         Closed Containers and Storage Aids
                                                                                                                        1) Storage of closed containers of distilled beverage alcohols, packaging materials and
                                                                                                                      empty bottles, drums, barrels and pallets shall be in conformance with Part 3.

                                                                                                    4.10.5.           Piping and Pumping Systems
                                                                                                    4.10.5.1.         Design and Installation
                                                                                                                         1) The design, fabrication, assembly and inspection of piping and pumping
                                                                                                                      systems containing distilled beverage alcohols shall be suitable for the anticipated
                                                                                                                      maximum working pressures, operating temperatures, internal corrosion conditions
                                                                                                                      and structural stresses to which they could be subjected. (See Note A-4.10.5.1.(1).)

                                                                                                    4.10.6.           Ventilation
                                                                                                    4.10.6.1.         Ventilation
                                                                                                                         1) Natural or mechanical ventilation shall be provided for all areas where alcohol
                                                                                                                      vapours are released from storage tanks or process equipment under normal operating
                                                                                                                      conditions, to prevent the concentration of vapours from exceeding 25% of the lower


                                                                                                    National Fire Code of Canada 2020                                                                          Division B 4-67
                                                                                                    4.10.7.1.                                                                                           Division B

                                                                                                                      explosive limit, measured 1.5 m from any equipment or from any opening subject to
                                                                                                                      vapour release.

                                                                                                    4.10.7.           Spill Control
                                                                                                    4.10.7.1.         Spill Control
                                                                                                                          1) Emergency drainage systems shall be provided to direct any spilled or leaked
                                                                                                                      distilled beverage alcohol to a safe location.

                                                                                                    4.10.8.           Fire Protection




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                                                                                                    4.10.8.1.         Portable Extinguishers
                                                                                                                        1) Except as permitted in Sentence (2), in maturing warehouses, at least one
                                                                                                                      portable extinguisher having a rating of 4-A:30-B:C shall be located adjacent to each exit.
                                                                                                                         2) Hose stations are permitted to be installed in lieu of portable extinguishers at
                                                                                                                      locations required in Sentence (1), and spaced so that the travel distance to the nearest
                                                                                                                      hose is not greater than 25 m.
                                                                                                                         3) At least one portable extinguisher having a rating of 30-B:C shall be located on
                                                                                                                      each industrial lift truck.

                                                                                                    4.10.8.2.         Standpipe and Hose Systems
                                                                                                                         1) Except as provided in Sentence (2), standpipe and hose systems shall be
                                                                                                                      provided and installed in distilleries in conformance with Article 2.1.3.1.
                                                                                                                         2) Where a building is sprinklered in conformance with Sentence 2.1.3.1.(1), small
                                                                                                                      hose (38 mm) stations are permitted to be supplied from interior sprinkler piping.


                                                                                                    Section 4.11. Tank Vehicles
                                                                                                    4.11.1.           Scope
                                                                                                    4.11.1.1.         Application
                                                                                                                         1) This Section applies to tank vehicles when located on a property covered in
                                                                                                                      this Code.

                                                                                                    4.11.2.           General
                                                                                                    4.11.2.1.         Portable Extinguishers
                                                                                                                        1) A tank vehicle shall be provided with at least one portable extinguisher having a
                                                                                                                      minimum rating of 80-B:C.
                                                                                                                         2) Portable extinguishers on a tank vehicle shall be readily accessible.

                                                                                                    4.11.2.2.         Hot Works
                                                                                                                         1) Hot works performed on or in close proximity to a tank vehicle shall conform
                                                                                                                      to Section 5.2.

                                                                                                    4.11.2.3.         Parking inside Buildings
                                                                                                                         1) A tank vehicle shall not be parked inside a building unless
                                                                                                                         a) the building is specifically designed for that purpose,
                                                                                                                         b) there is sufficient space in the tank vehicle compartment to accommodate the
                                                                                                                            thermal expansion of the flammable liquid or combustible liquid, and
                                                                                                                         c) the tank vehicle has no leaks of flammable liquid or combustible liquid.


                                                                                                    4-68 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                             4.11.3.8.

                                                                                                    4.11.2.4.         Parking outside Buildings
                                                                                                                        1) Except as provided in Sentence (2), a tank vehicle is permitted to be left
                                                                                                                      unattended by the vehicle operator outside a building for not more than 1 h.
                                                                                                                         2) A tank vehicle is permitted to be left unattended by the vehicle operator outside
                                                                                                                      a building for more than 1 h, but only in a parking space
                                                                                                                          a) that is located not less than 15 m from a building, and
                                                                                                                          b) where the tank vehicle is not exposed to undue hazard from accident or
                                                                                                                              collision.

                                                                                                    4.11.3.           Loading, Unloading and Dispensing from Tank Vehicles




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                                                                                                    4.11.3.1.         Loading and Unloading
                                                                                                                         1) Unless otherwise stated in this Subsection, the loading and unloading of
                                                                                                                      tank vehicles shall be conducted in conformance with the applicable provisions in
                                                                                                                      Subsection 4.7.4.

                                                                                                    4.11.3.2.         Ignition Sources
                                                                                                                         1) During loading and unloading operations, a tank vehicle and its delivery
                                                                                                                      equipment shall be separated from ignition sources by distances conforming to the
                                                                                                                      requirements for dispensers in Articles 4.6.3.3. and 4.6.8.7.

                                                                                                    4.11.3.3.         Static Electric Charges
                                                                                                                         1) During loading and unloading of a tank vehicle, measures shall be taken against
                                                                                                                      static electric charges in conformance with Articles 4.1.8.2. and 4.7.4.5.

                                                                                                    4.11.3.4.         Supervision
                                                                                                                        1) During loading and unloading of a tank vehicle, trained personnel shall be in a
                                                                                                                      position to shut off the flow of liquid in an emergency.

                                                                                                    4.11.3.5.         Multi-use Compartments
                                                                                                                         1) When a compartment of a tank vehicle has been used to carry a Class I liquid,
                                                                                                                      the compartment, piping and accessory delivery equipment shall be drained of liquid
                                                                                                                      before a Class II or IIIA liquid is loaded.

                                                                                                    4.11.3.6.         Engine
                                                                                                                         1) When the loading or unloading of Class I liquids is done without the use of
                                                                                                                      the engine of the tank vehicle, the engine ignition shall be shut off during the transfer
                                                                                                                      operations.

                                                                                                    4.11.3.7.         Unloading
                                                                                                                         1) Before a tank vehicle is unloaded, the volume of liquid in the receiving tank shall
                                                                                                                      be measured to ensure that the tank can accept the volume to be unloaded.
                                                                                                                         2) If the vents of the receiving or delivery tank are obstructed, the transfer of
                                                                                                                      liquid shall be stopped.
                                                                                                                         3) A tank vehicle shall not be parked on a street, shoulder or sidewalk while
                                                                                                                      unloading at a fuel-dispensing station.

                                                                                                    4.11.3.8.         Dispensing into Vehicles
                                                                                                                         1) Dispensing Class I liquids into the fuel tank of vehicles directly from a tank
                                                                                                                      vehicle shall not be permitted.
                                                                                                                         2) Dispensing Class II or IIIA liquids into the fuel tank of vehicles directly from a
                                                                                                                      tank vehicle having a capacity greater than 3 000 L shall be permitted only if
                                                                                                                          a) the vehicles are located outdoors on a property where they are
                                                                                                                                 i) not less than 6 m away from any building, and
                                                                                                                                ii) not exposed to undue hazard from accident or collision,


                                                                                                    National Fire Code of Canada 2020                                                                       Division B 4-69
                                                                                                    4.12.1.1.                                                                                           Division B

                                                                                                                         b) at least 2 portable extinguishers having a minimum rating of 80-B:C are
                                                                                                                            provided on the tank vehicle,
                                                                                                                         c) the delivery hoses and automatically closing hose nozzle valves used for the
                                                                                                                            fuel-dispensing operations conform to Subsection 4.6.5.,
                                                                                                                         d) the tank vehicle operator is given training and equipment for controlling any
                                                                                                                            spillage that may occur during the fuel-dispensing operations, and
                                                                                                                         e) in cases where fuel-dispensing operations are carried out at a site not
                                                                                                                            conforming to Subsection 4.1.6., measures are in place to control a spill of
                                                                                                                            not less than 1 000 L.


                                                                                                    Section 4.12. Farms




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                                                                                                    4.12.1.           Scope

                                                                                                    4.12.1.1.         Application

                                                                                                                         1) This Section applies to the storage of flammable liquids or combustible liquids on
                                                                                                                      farms for individual farm use.

                                                                                                    4.12.1.2.         Containers and Tanks

                                                                                                                         1) Except as provided in Sentence (3), storage containers of flammable liquids or
                                                                                                                      combustible liquids used for fuel in quantities exceeding 100 L shall be
                                                                                                                         a) stored outdoors or in buildings used only for the storage of such containers,
                                                                                                                            and
                                                                                                                         b) separated from other occupancies and property lines by a distance of not
                                                                                                                            less than 12 m.

                                                                                                                         2) Vehicles, equipment and containers filled directly from a storage container
                                                                                                                      referred to in Sentence (1) shall be located not less than 12 m away from any building or
                                                                                                                      property line.

                                                                                                                         3) Underground storage tanks for flammable liquids or combustible liquids shall be
                                                                                                                      separated from buildings and property lines by a distance of not less than 1.5 m.

                                                                                                                         4) The minimum separation between a flammable liquid or combustible liquid storage
                                                                                                                      tank and a liquefied petroleum gas cylinder or tank shall be in conformance with
                                                                                                                      Sentence 4.3.2.3.(1).

                                                                                                    4.12.1.3.         Pesticide Storage Areas

                                                                                                                         1) Storage areas for pesticides classified as flammable liquids or combustible liquids
                                                                                                                      shall be
                                                                                                                         a) accessible only from the outdoors, and
                                                                                                                         b) secured against unauthorized entry.


                                                                                                    Section 4.13. Objectives and Functional Statements
                                                                                                    4.13.1.           Objectives and Functional Statements

                                                                                                    4.13.1.1.         Attribution to Acceptable Solutions

                                                                                                                          1) For the purposes of compliance with this Code as required in
                                                                                                                      Clause 1.2.1.1.(1)(b) of Division A, the objectives and functional statements attributed
                                                                                                                      to the acceptable solutions in this Part shall be the objectives and functional statements
                                                                                                                      listed in Table 4.13.1.1. (See Note A-1.1.2.1.(1).)


                                                                                                    4-70 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                 4.13.1.1.

                                                                                                                         Table 4.13.1.1.                                                       Table 4.13.1.1. (Continued)
                                                                                                      Objectives and Functional Statements Attributed to the
                                                                                                                  Acceptable Solutions in Part 4                             Provision           Functional Statements and Objectives (1)
                                                                                                               Forming Part of Sentence 4.13.1.1.(1)
                                                                                                                                                                             (2)         [F03-OS1.2]
                                                                                                     Provision            Functional Statements and Objectives (1)           4.1.6.3. Spills and Leaks
                                                                                                     4.1.3.1. Determination of Flash Point                                   (1)         [F82,F44-OS1.1,OS1.2]
                                                                                                     (1)         [F01-OS1.1]                                                             [F82,F44-OP1.1,OP1.2]
                                                                                                     (2)         [F01-OS1.1]                                                 (2)         [F44-OP1.1,OP1.2]
                                                                                                     (3)         [F01-OS1.1]                                                             [F44-OS1.1,OS1.2]




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                                                                                                     (4)         [F01-OS1.1]                                                             [F44-OH5]
                                                                                                     4.1.4.1. Hazardous Locations                                            (3)         (a) [F01,F02-OS1.1]
                                                                                                                                                                                         (b) [F02-OS1.1,OS1.2]
                                                                                                     (1)         [F01-OS1.1]
                                                                                                                                                                                         (a) [F44-OP1.1,OP1.2]
                                                                                                     (2)         [F01-OS1.1]                                                             (b) [F02-OP1.1,OP1.2]
                                                                                                     4.1.5.1. Additional Fire Protection Equipment                           4.1.7.1. Rooms or Enclosed Spaces
                                                                                                     (1)         [F02,F03-OS1.2]                                             (1)         [F01-OS1.1] Applies to conformance to the appropriate
                                                                                                                 [F02,F03-OP1.2]                                                         provincial or territorial legislation.
                                                                                                     4.1.5.2. Ignition Sources                                                           [F01-OS1.1] Applies to portion of Code text: “… shall
                                                                                                                                                                                         conform … to this Part and the NBC.”
                                                                                                     (1)         [F01-OS1.1] Applies to portion of Code text: “… a device,
                                                                                                                 operation or activity that produces open flames, sparks     4.1.7.2. Ventilation Measures
                                                                                                                 or heat shall not be permitted in an area described in      (1)         [F01-OS1.1]
                                                                                                                 Article 4.1.1.1.”
                                                                                                                                                                             (2)         [F43-OS1.1]
                                                                                                                 [F01-OS1.1] Applies to portion of Code text: “Unless
                                                                                                                 controlled in a manner that will not create a fire or       (3)         [F01-OS1.1]
                                                                                                                 explosion hazard …”                                         (4)         [F01-OS1.1]
                                                                                                     4.1.5.3. Smoking                                                                    [F01-OP1.1]
                                                                                                     (1)         [F01-OS1.1]                                                 (5)         (a) [F01-OS1.1]
                                                                                                     4.1.5.4. Removal of Combustibles                                                    (b) [F11-OS1.1]
                                                                                                     (1)         [F01-OS1.1]                                                             (c) [F01,F02-OS1.1,OS1.2]
                                                                                                     4.1.5.6. Access for Firefighting                                                    (c) [F02-OP1.2]
                                                                                                     (1)         [F12-OS1.2]                                                 4.1.7.3. Location of Air Inlets and Outlets
                                                                                                                 [F12-OP1.2]                                                 (1)         [F01-OS1.1]
                                                                                                                 [F12-OP3.1]                                                 (3)         [F01-OS1.1]
                                                                                                     4.1.5.8. Basement Storage                                               (4)         [F01-OS1.1]
                                                                                                     (1)         [F43,F01-OS1.1]                                             4.1.7.4. Location of Mechanical Ventilation Exhaust Air Outlets
                                                                                                     (2)         [F02,F43-OS1.1]                                             (1)         (a) [F01-OS1.1]
                                                                                                     4.1.6.1. Spill Control                                                              (b) [F03-OP1.2]
                                                                                                     (1)         [F44-OS1.1,OS1.2] Applies to preventing spills from                     (b) [F03-OP3.1]
                                                                                                                 flowing outside the spill area.
                                                                                                                                                                                         (b) [F01-OS1.1] [F03-OS1.2]
                                                                                                                 [F44-OP1.1,OP1.2] Applies to preventing spills from
                                                                                                                 flowing outside the spill area.                             4.1.7.5. Make-up Air

                                                                                                                 [F44-OH5]                                                   (1)         [F01-OS1.1]
                                                                                                     (3)         [F44-OH5]                                                   (2)         [F01,F44-OS1.2]
                                                                                                                 [F44-OS1.1,OS1.2]                                           (3)         [F03-OS1.2]
                                                                                                     4.1.6.2. Drainage Systems                                                           [F03-OP1.2]

                                                                                                     (1)         (a) [F44-OH5] Applies to the termination of the drainage    4.1.7.6. Recirculating Ventilation Systems
                                                                                                                 system where it will not create a risk to public health.    (1)         [F01-OS1.1]
                                                                                                                 [F44-OS1.1,OS1.2,OS1.4]                                                 (a),(b),(b)(i) [F11,F01-OS1.1]
                                                                                                                 [F44-OP1.1,OP1.2]



                                                                                                    National Fire Code of Canada 2020                                                                                           Division B 4-71
                                                                                                    4.13.1.1.                                                                                                                 Division B

                                                                                                                        Table 4.13.1.1. (Continued)                                              Table 4.13.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)            Provision             Functional Statements and Objectives (1)
                                                                                                    4.1.7.7. Exclusive Use of Ducts                                          4.2.4.2. Maximum Quantities
                                                                                                    (1)          [F01,F44-OS1.1,OS1.2] [F03-OS1.2]                           (2)         [F02-OS1.2]
                                                                                                                 [F01,F44-OP1.1,OP1.2] [F03-OP1.2]                                       [F02-OP1.2]
                                                                                                    4.1.7.8. Maintenance                                                     (3)         [F02-OS1.2]
                                                                                                    (1)          [F82-OS1.1]                                                             [F02-OP1.2]
                                                                                                    4.1.8.1. Containers and Storage Tanks                                    (4)         (b) [F03-OS1.2]




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                                                                                                    (2)          [F43-OS1.1]                                                             (a) [F02-OS1.2]
                                                                                                    (3)          [F43-OS1.1]                                                             [F02,F03-OS1.2]
                                                                                                    4.1.8.2. Control of Static Electric Charge                                           (a) [F02-OP1.2] Applies to storage in cabinets not
                                                                                                                                                                                         exceeding the quantity permitted for one cabinet.
                                                                                                    (1)          (b) [F01-OS1.1]
                                                                                                                                                                                         [F02,F03-OP1.2]
                                                                                                                 [F01-OS1.1]
                                                                                                                                                                             4.2.4.3. Storage Cabinets and Storage Rooms
                                                                                                    (2)          [F01-OS1.1]
                                                                                                                                                                             (1)         [F12-OS1.2] [F01-OS1.1]
                                                                                                    (4)          [F22-OS1.1]
                                                                                                                                                                                         [F12-OP1.2] [F01-OP1.1]
                                                                                                    4.1.8.3. Transfer
                                                                                                                                                                             4.2.4.4. Exterior Balconies
                                                                                                    (1)          (b) [F43-OS1.1]
                                                                                                                                                                             (1)         [F03-OS1.2]
                                                                                                                 (c) [F43-OS1.1]
                                                                                                                                                                                         [F03-OP1.2]
                                                                                                    (2)          [F20,F81,F01-OS1.1]
                                                                                                                                                                             4.2.4.5. Dwelling Units
                                                                                                    4.1.8.4. Fuel Tanks of Vehicles
                                                                                                                                                                             (1)         [F02-OS1.2] Applies to portion of Code text: “Not more
                                                                                                    (1)          [F01,F43,F81-OS1.1]
                                                                                                                                                                                         ... than 10 L shall be Class I liquids, are permitted to be
                                                                                                    (2)          [F43-OS1.1]                                                             stored in each dwelling unit.”
                                                                                                    4.2.2.1. Prohibited Locations                                                        [F02-OS1.2]
                                                                                                    (1)          [F10,F12,F05,F06-OS1.5] Applies to storage in or                        [F02-OP1.2]
                                                                                                                 adjacent to exits or principal routes that provide access               [F02-OP1.2] Applies to portion of Code text: “Not more
                                                                                                                 to exits.                                                               … than 10 L shall be Class I liquids, are permitted to be
                                                                                                                 [F03-OS1.2] Applies to storage near elevators.                          stored in each dwelling unit.”
                                                                                                    4.2.2.2. Storage Arrangement and Conditions                              4.2.4.6. Attached Garages and Sheds
                                                                                                    (1)          [F01,F43-OS1.1]                                             (1)         [F02-OS1.2]
                                                                                                                 [F43-OS3.4]                                                             [F02-OP1.2]
                                                                                                                 [F10,F30-OS3.7]                                             4.2.5.2. Maximum Quantities
                                                                                                                 [F01,F43-OP1.1]                                             (2)         [F02-OS1.2]
                                                                                                                 [F43-OH5]                                                               [F02-OP1.2]
                                                                                                    (2)          (a) [F43-OS3.4]                                             (3)         [F02-OS1.2]
                                                                                                                 (b) [F01,F43-OS1.1]                                                     [F02-OP1.2]
                                                                                                                 (a) [F43-OH5]                                               (5)         [F02,F03-OS1.2]
                                                                                                                 (b) [F01,F43-OP1.1]                                                     [F02,F03-OP1.2]
                                                                                                    4.2.3.1. Design and Construction                                         4.2.5.3. Containers
                                                                                                    (1)          [F20,F43,F80,F81-OH5]                                       (1)         [F01,F43-OS1.1]
                                                                                                                 (d) [F01,F43,F04-OS1.1]                                     (2)         [F20-OS1.1,OS1.2] [F04-OS1.5]
                                                                                                                 [F20,F43,F80,F81,F01-OS1.1]                                             [F20-OH5]
                                                                                                    4.2.3.2. Markings or Labels                                                          [F04-OP1.2]
                                                                                                    (1)          [F81-OS1.1] [F12-OS1.1,OS1.2]                               (3)         [F01,F43-OS1.2]
                                                                                                    (2)          [F81-OS1.1] [F12-OS1.1,OS1.2]                               4.2.5.4. Transfer
                                                                                                                                                                             (1)         [F01,F43-OS1.1]




                                                                                                    4-72 Division B                                                                                          National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                   4.13.1.1.

                                                                                                                       Table 4.13.1.1. (Continued)                                               Table 4.13.1.1. (Continued)

                                                                                                     Provision             Functional Statements and Objectives (1)          Provision             Functional Statements and Objectives (1)
                                                                                                     4.2.6.2. Storage Cabinets and Storage Rooms                             4.2.7.7. Clearances
                                                                                                     (1)         (a) [F02-OS1.2] Applies to storage in cabinets not          (1)         [F04-OS1.3]
                                                                                                                 exceeding the quantity permitted for one cabinet.
                                                                                                                                                                                         [F04-OP1.3]
                                                                                                                 (b) [F03-OS1.2]
                                                                                                                                                                             (2)         [F02-OS1.2]
                                                                                                                 [F02,F03-OS1.2]
                                                                                                                                                                                         [F02-OP1.2]
                                                                                                                 [F01,F43-OS1.1] Applies to portion of Code text: “Except
                                                                                                                                                                             (3)         [F81,F82-OS1.1] [F10-OS1.5]
                                                                                                                 as permitted in Article 4.2.6.3., flammable liquids and




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                                                                                                                 combustible liquids shall be kept in closed containers …”   4.2.7.10. Separation from Combustible Products
                                                                                                                 (a) [F02-OP1.2] Applies to storage in cabinets not          (1)         [F03-OS1.2]
                                                                                                                 exceeding the quantity permitted for one cabinet.           4.2.8.2. Maximum Quantities
                                                                                                                 [F02,F03-OP1.2]
                                                                                                                                                                             (1)         [F02-OS1.2]
                                                                                                     4.2.6.3. Maximum Quantities
                                                                                                                                                                                         [F02-OP1.2]
                                                                                                     (1)         [F02,F03-OS1.2]                                             (2)         [F02-OS1.2]
                                                                                                                 [F02,F03-OP1.2]                                                         [F02-OP1.2]
                                                                                                     (2)         [F02-OS1.2]                                                 (3)         [F02-OS1.2]
                                                                                                                 [F02-OP1.2]                                                             [F02-OP1.2]
                                                                                                     4.2.6.4. Containers                                                     4.2.8.3. Handling
                                                                                                     (1)         [F04,F43,F01-OS1.1] [F02-OS1.2]                             (1)         [F01-OS1.1]
                                                                                                     4.2.6.5. Separation of Dangerous Goods                                  4.2.8.4. General Storage Areas
                                                                                                     (1)         [F03-OS1.2]                                                 (1)         [F02,F03-OS1.2]
                                                                                                     4.2.7.2. Storage Facilities                                                         [F02,F03-OP1.2]
                                                                                                     (1)         [F02,F03-OS1.2]                                             (4)         [F02-OS1.2]
                                                                                                                 [F02,F03-OP1.2]                                                         [F02-OP1.2]
                                                                                                     4.2.7.3. Fire Compartments                                              4.2.9.1. Maximum Quantities
                                                                                                     (1)         [F03-OS1.2]                                                 (1)         [F02-OS1.2] Applies to storage densities averaged over
                                                                                                                 [F03-OP1.2]                                                             the total room area.
                                                                                                     4.2.7.4. Dispensing and Transfer                                                    [F02-OS1.2] Applies to the total quantities of flammable
                                                                                                                                                                                         liquids and combustible liquids.
                                                                                                     (1)         [F01,F02,F03-OS1.2]
                                                                                                                                                                                         [F03-OS1.2] Applies to the fire-resistance ratings of fire
                                                                                                                 [F01,F02,F03-OP1.2]                                                     separations .
                                                                                                     (2)         [F02,F01-OS1.2,OS1.1]                                                   [F02-OP1.2] Applies to storage densities averaged over
                                                                                                                 [F01,F02-OP1.1,OP1.2]                                                   the total room area.
                                                                                                     4.2.7.5. Maximum Quantities                                                         [F02-OP1.2] Applies to the total quantities of flammable
                                                                                                                                                                                         liquids and combustible liquids.
                                                                                                     (1)         [F03,F02-OS1.2]
                                                                                                                                                                                         [F03-OP1.2] Applies to the fire-resistance ratings of fire
                                                                                                                 [F43,F01-OS1.1]
                                                                                                                                                                                         separations.
                                                                                                                 [F20-OS1.1,OS1.2] [F04-OS1.2,OS1.5]
                                                                                                                                                                             (2)         [F02-OS1.2]
                                                                                                                 [F04-OP1.2]
                                                                                                                                                                                         [F02-OP1.2]
                                                                                                                 [F20-OH5]
                                                                                                                                                                             4.2.9.2. Spill Control
                                                                                                                 [F03,F02-OP1.2]
                                                                                                                                                                             (1)         [F44-OS1.1,OS1.2]
                                                                                                     (2)         [F03-OS1.2]
                                                                                                                                                                                         [F44-OP1.2]
                                                                                                                 [F03-OP1.2]
                                                                                                                                                                                         [F44-OH5]
                                                                                                     4.2.7.6. Fire Suppression Systems
                                                                                                                                                                             4.2.9.3. Aisles
                                                                                                     (1)         [F02-OS1.2]
                                                                                                                                                                             (1)         [F81,F82-OS1.1,OS1.2] [F12-OS1.2] [F10-OS1.5]
                                                                                                                 [F02-OP1.1]
                                                                                                                                                                                         [F12-OP1.2]




                                                                                                    National Fire Code of Canada 2020                                                                                              Division B 4-73
                                                                                                    4.13.1.1.                                                                                                               Division B

                                                                                                                       Table 4.13.1.1. (Continued)                                             Table 4.13.1.1. (Continued)

                                                                                                     Provision            Functional Statements and Objectives (1)          Provision            Functional Statements and Objectives (1)
                                                                                                    4.2.9.4. Dispensing                                                     4.3.1.2. Atmospheric Storage Tanks
                                                                                                    (1)          [F43,F01-OS1.1]                                            (1)         [F20,F80,F43,F81,F01-OS1.1]
                                                                                                    4.2.10.1. Containers                                                                [F20,F80,F43,F81-OH5]
                                                                                                    (1)          [F43,F01-OS1.1] Applies to storage in closed containers.   (2)         (b) [F04,F81-OS1.1]
                                                                                                    4.2.10.2. Maximum Quantity per Cabinet                                  (4)         [F01,F20,F81-OS1.1]
                                                                                                    (1)          [F02-OS1.2]                                                            [F20,F81-OH5]




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                                                                                                                 [F02-OP1.2]                                                4.3.1.3. Low Pressure Storage Tanks and Pressure Vessels
                                                                                                    4.2.10.3. Maximum Quantity per Fire Compartment                         (1)         [F43,F80,F81,F20,F01-OS1.1]
                                                                                                    (1)          [F02-OS1.2]                                                            [F43,F80,F81,F20-OH5]
                                                                                                                 [F02-OP1.2]                                                (2)         [F81,F80,F43,F01,F20-OS1.1]
                                                                                                    (2)          [F02-OS1.2]                                                            [F43,F81,F80,F20-OH5]
                                                                                                                 [F02-OP1.2]                                                4.3.1.4. Operating Pressure
                                                                                                    (3)          [F02-OS1.2]                                                (1)         [F81,F20-OS1.1]
                                                                                                                 [F02-OP1.2]                                                            [F81,F20-OH5]
                                                                                                    4.2.10.4. Labelling                                                     4.3.1.5. Corrosion Protection
                                                                                                    (1)          [F01-OS1.1]                                                (1)         [F80-OS1.1]
                                                                                                    4.2.10.5. Fire Endurance                                                            [F80-OH5]
                                                                                                    (1)          [F01-OS1.1]                                                4.3.1.6. Floating Roofs
                                                                                                                 [F44-OS1.1]                                                (1)         [F04-OS1.1]
                                                                                                                 [F03-OS1.2]                                                4.3.1.7. Identification
                                                                                                                 [F03-OP1.2]                                                (1)         [F81-OS1.1] [F12-OS1.2]
                                                                                                                 [F44-OP1.1]                                                            [F12-OP1.2]
                                                                                                                 [F44-OH5]                                                  4.3.1.8. Overfill Protection
                                                                                                    4.2.10.6. Ventilation                                                   (1)         [F43-OS1.1]
                                                                                                    (1)          (a) [F01-OS1.1,OS1.2] Applies to materials providing                   [F43-OH5]
                                                                                                                 equivalent fire protection.
                                                                                                                                                                                        [F43-OP1.1]
                                                                                                                 (b) [F01-OS1.1,OS1.2] Applies to the vent piping
                                                                                                                 providing equivalent fire protection.                      (2)         [F43-OS1.1]
                                                                                                                 (a) [F01-OS1.1] Applies to portion of Code text: “… the                [F43-OH5]
                                                                                                                 ventilation openings shall be sealed …”                                [F43-OP1.1]
                                                                                                                 (b) [F01-OS1.1] Applies to portion of Code text: “… the
                                                                                                                 cabinet shall be vented outdoors …”                        (3)         [F43-OS1.1]
                                                                                                    4.2.11.1. Quantities and Clearances                                                 [F43-OP1.1]
                                                                                                    (1)          [F03,F02-OS1.2]                                                        [F43-OH5]
                                                                                                                 [F03,F02-OP3.1]                                            4.3.1.9. Installation and Use
                                                                                                    (2)          (a),(b) [F03,F02-OS1.2]                                    (1)         [F81,F80,F43,F01,F20-OS1.1]
                                                                                                                 (a),(b) [F03,F02-OP3.1]                                                [F81,F80,F43,F01,F20-OH5]
                                                                                                    4.2.11.3. Fire Department Access                                        4.3.1.10. Reuse
                                                                                                    (1)          [F12-OP3.1]                                                (1)         (b) [F01,F20,F43,F80,F81-OS1.1]
                                                                                                    4.2.12.2. Maximum Quantities                                                        (b) [F20,F43,F80,F81-OH5]
                                                                                                    (1)          [F02-OS1.2]                                                (2)         [F20,F43,F01-OS1.1]
                                                                                                                 [F02-OP1.2]                                                            [F20,F43-OH5]
                                                                                                    4.2.12.3. Dispensing and Handling                                       (3)         [F20,F43,F01-OS1.1]
                                                                                                    (1)          [F01,F43-OS1.1]                                                        [F20,F43-OH5]
                                                                                                                 [F01,F43-OP1.1]



                                                                                                    4-74 Division B                                                                                         National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                              4.13.1.1.

                                                                                                                         Table 4.13.1.1. (Continued)                                       Table 4.13.1.1. (Continued)

                                                                                                     Provision            Functional Statements and Objectives (1)       Provision           Functional Statements and Objectives (1)
                                                                                                     (4)         [F81-OH5]                                               4.3.3.1. Foundations and Supports
                                                                                                                 [F81-OS1.1]                                             (1)         [F02-OS1.2] Applies to the requirement that storage
                                                                                                     4.3.2.1. Location                                                               tanks rest on the ground or on foundations, supports or
                                                                                                                                                                                     piling made of concrete, masonry or steel.
                                                                                                     (2)         [F03-OP3.1]
                                                                                                                                                                                     [F22,F81,F20-OS1.1]
                                                                                                                 [F03-OS1.2]
                                                                                                                                                                                     [F22,F81,F20-OH5]
                                                                                                     (3)         [F03-OP3.1]
                                                                                                                                                                         (2)         [F22-OS1.1] Applies to the installation of tank supports




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                                                                                                                 [F03-OS1.2]                                                         on firm foundations designed to minimize uneven settling
                                                                                                     (4)         [F03-OP3.1]                                                         of the tank.

                                                                                                                 [F03-OS1.2]                                                         [F80-OS1.1] Applies to the minimizing of corrosion of the
                                                                                                                                                                                     part of the tank resting on the foundation.
                                                                                                     (5)         [F03-OP3.1]
                                                                                                                                                                                     [F22-OH5] Applies to the installation of tank supports on
                                                                                                                 [F03-OS1.2]                                                         firm foundations designed to minimize uneven settling
                                                                                                     (6)         (a) [F03-OP3.1]                                                     of the tank.

                                                                                                                 (b) [F01,F02-OP3.1]                                                 [F80-OH5] Applies to the installation of tank supports on
                                                                                                                                                                                     firm foundations designed to minimize corrosion of the
                                                                                                                 (a) [F03-OS1.2]                                                     part of the tank resting on the foundation.
                                                                                                                 (b) [F01,F02-OS1.2]                                     (3)         [F04-OS1.2]
                                                                                                     (7)         [F04,F02-OP3.1]                                         (4)         [F20,F81-OS1.1]
                                                                                                                 [F04,F02-OS1.2]                                                     [F20,F81-OH5]
                                                                                                     (8)         [F02-OP3.1]                                             4.3.3.2. Earthquake Protection
                                                                                                     4.3.2.2. Spacing between Storage Tanks                              (1)         [F22-OS1.1]
                                                                                                     (1)         [F03,F12-OP1.2] Applies to the minimum distance being               [F22-OH5]
                                                                                                                 0.25 times the sum of the tanks' diameters.
                                                                                                                                                                         4.3.3.3. Protection against Flooding
                                                                                                                 [F82-OS1.1] Applies to the minimum distance of 1 m
                                                                                                                 between the storage tanks.                              (1)         [F22-OS1.1]
                                                                                                                 [F82-OP1.2] Applies to the minimum distance of 1 m                  [F22-OH5]
                                                                                                                 between the storage tanks .                             4.3.4.1. Design and Installation
                                                                                                                 [F82-OH5] Applies to the minimum distance of 1 m        (1)         [F20,F81-OS1.1] Applies to the requirement for normal
                                                                                                                 between the storage tanks.                                          venting.
                                                                                                     (2)         [F03-OP1.2]                                                         [F04,F81-OS1.1] Applies to the requirement for
                                                                                                     (3)         [F03-OP1.2]                                                         emergency venting.
                                                                                                     4.3.2.3. Clearances from Liquefied Petroleum Gas Cylinders and                  [F20,F81-OH5] Applies to the requirement for normal
                                                                                                     Tanks                                                                           venting.
                                                                                                     (1)         [F03-OP1.2]                                             4.3.4.2. Unstable Liquids
                                                                                                     (2)         [F02,F03-OP1.2]                                         (1)         [F20,F81,F04-OS1.1]
                                                                                                     4.3.2.4. Fire Department Access                                                 [F20,F81,F04-OH5]
                                                                                                     (1)         [F12-OP1.2]                                             4.3.5.2. Location of Vent Pipe Outlets
                                                                                                     (2)         [F12-OP1.2]                                             (1)         [F01-OS1.1]
                                                                                                     (3)         [F02,F03-OP1.2]                                         (2)         [F01-OS1.1]
                                                                                                     4.3.2.5. Fire Protection Systems                                    (3)         [F01-OS1.1]
                                                                                                     (2)         [F02,F03-OP1.2]                                         4.3.5.3. Interconnection of Vent Piping
                                                                                                                 [F02-OS1.2]                                             (1)         [F20,F81-OS1.1]
                                                                                                                                                                                     [F20,F81-OH5]
                                                                                                                                                                         (2)         [F01-OS1.1]




                                                                                                    National Fire Code of Canada 2020                                                                                        Division B 4-75
                                                                                                    4.13.1.1.                                                                                                                  Division B

                                                                                                                         Table 4.13.1.1. (Continued)                                              Table 4.13.1.1. (Continued)

                                                                                                     Provision            Functional Statements and Objectives (1)            Provision             Functional Statements and Objectives (1)
                                                                                                    4.3.6.1. Provision of Valves                                              4.3.7.2. Construction
                                                                                                    (1)          [F44-OS1.1]                                                  (1)         [F04-OS1.1] Applies to the construction of the base and
                                                                                                                                                                                          walls of secondary containments with noncombustible
                                                                                                                 [F44-OP1.1]
                                                                                                                                                                                          materials.
                                                                                                                 [F44-OH5]
                                                                                                                                                                                          (a) [F20-OS1.1] Applies to the base and walls of
                                                                                                    (2)          [F44-OS1.1]                                                              secondary containments being designed, constructed
                                                                                                                 [F44-OP1.1]                                                              and maintained to withstand full hydrostatic head.




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                                                                                                                 [F44-OH5]                                                                (b) [F44-OS1.1] Applies to the base and walls of
                                                                                                                                                                                          secondary containments being designed, constructed
                                                                                                    4.3.6.2. Materials                                                                    and maintained to provide the stated permeability.
                                                                                                    (1)          [F04,F20-OS1.1] Applies to portion of Code text: “Valves                 [F04-OP1.1] Applies to the construction of the base and
                                                                                                                 and their connections to a storage tank shall be made of                 walls of secondary containments with noncombustible
                                                                                                                 steel …”                                                                 materials.
                                                                                                                 [F04,F20-OH5] Applies to portion of Code text: “Valves                   (a) [F20-OP1.1] Applies to the base and walls of
                                                                                                                 and their connections to a storage tank shall be made of                 secondary containments being designed, constructed
                                                                                                                 steel …”                                                                 and maintained to withstand full hydrostatic head.
                                                                                                    (2)          [F20,F04-OS1.1]                                                          (a) [F20-OH5] Applies to the base and walls of
                                                                                                                 [F20,F04-OH5] Applies to the materials for valves and                    secondary containments being designed, constructed
                                                                                                                 their connections to a storage tank being suitable for the               and maintained to withstand full hydrostatic head.
                                                                                                                 pressures, stresses and temperatures.                                    (b) [F44-OP1.1] Applies to the base and walls of
                                                                                                    4.3.6.3. Openings for Liquid Level Measurements                                       secondary containments being designed, constructed
                                                                                                                                                                                          and maintained to provide the stated permeability.
                                                                                                    (1)          [F43,F01,F81,F34-OS1.1]
                                                                                                                                                                                          (b) [F44-OH5] Applies to the base and walls of
                                                                                                                 [F43,F81,F34-OH5]                                                        secondary containments being designed, constructed
                                                                                                    4.3.6.4. Connections for Filling and Emptying                                         and maintained to provide the stated permeability.

                                                                                                    (1)          (a),(b) [F01-OS1.1]                                          (2)         [F43,F44-OS1.1]

                                                                                                                 (a),(c) [F01-OS1.1]                                                      [F43,F44-OP1.1]

                                                                                                    (2)          [F43,F01,F81,F34-OS1.1]                                                  [F43,F44-OH5]

                                                                                                                 [F43,F81,F34-OH5]                                            (3)         [F44-OS1.1]

                                                                                                    (3)          [F01-OS1.1]                                                              [F44-OH5]

                                                                                                    (4)          [F01,F43-OS1.1]                                                          [F44-OP1.1]

                                                                                                                 [F01,F43-OP1.1]                                              4.3.7.3. Capacity

                                                                                                                 [F43-OH5]                                                    (1)         [F44-OS1.1]
                                                                                                                                                                                          [F44-OP1.1]
                                                                                                                                                                                          [F44-OH5]
                                                                                                                                                                              (2)         [F44-OS1.1]
                                                                                                                                                                                          [F44-OP1.1]
                                                                                                                                                                                          [F44-OH5]
                                                                                                                                                                              (3)         [F44-OS1.1]
                                                                                                                                                                                          [F44-OP1.1]
                                                                                                                                                                                          [F44-OH5]
                                                                                                                                                                              4.3.7.4. Clearances
                                                                                                                                                                              (1)         [F01,F82-OS1.1] [F12-OS1.2]
                                                                                                                                                                                          [F82-OH5]
                                                                                                                                                                                          [F01,F82-OP1.1] [F12-OP1.2]
                                                                                                                                                                              (3)         [F43,F81-OS1.1]
                                                                                                                                                                                          [F43,F81-OP1.1]
                                                                                                                                                                                          [F43,F81-OH5]



                                                                                                    4-76 Division B                                                                                           National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                  4.13.1.1.

                                                                                                                         Table 4.13.1.1. (Continued)                                         Table 4.13.1.1. (Continued)

                                                                                                     Provision            Functional Statements and Objectives (1)        Provision               Functional Statements and Objectives (1)
                                                                                                     4.3.7.5. Access to Storage Tanks and Ancillary Equipment             (2)          (a) [F20,F21-OS1.1]
                                                                                                                                                                                       (b) [F20,F21-OS1.1] Applies to the distance from a
                                                                                                     (1)         (a) [F82-OS1.1] [F12-OS1.2]
                                                                                                                                                                                       building foundation.
                                                                                                                 (b) [F10-OS1.5]
                                                                                                                                                                                       (b) [F01-OS1.1] Applies to the distance from a building
                                                                                                                 (c) [F12-OS1.2]                                                       foundation.
                                                                                                                 (c) [F12-OP1.2]                                                       (b) [F81-OS1.1] Applies to the distance from street lines.
                                                                                                                 (a) [F82-OP1.1] [F12-OP1.2]                                           (c) [F81-OS1.1]




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                                                                                                                 (a) [F82,F12-OH5]                                                     (a) [F20,F21-OH5]
                                                                                                                                                                                       (b) [F20,F21-OH5] Applies to the distance from a building
                                                                                                                 (b) [F10-OS3.4]                                                       foundation.
                                                                                                     (2)         [F12-OS1.1]                                                           (b) [F01-OP3.1] Applies to the distance from a building
                                                                                                                 [F12-OP1.1]                                                           foundation.

                                                                                                                 [F12-OH5]                                                             (b) [F81-OH5] Applies to the distance from street lines.
                                                                                                                                                                                       (c) [F81-OH5]
                                                                                                     4.3.7.6. Emergency Venting
                                                                                                                                                                          4.3.8.3. Ground Cover
                                                                                                     (1)         [F04-OS1.1]
                                                                                                                                                                          (1)          [F20,F81-OS1.1]
                                                                                                                 [F04-OP1.1]
                                                                                                                                                                                       [F20,F81-OH5]
                                                                                                     4.3.7.7. Leak Detection
                                                                                                                                                                          (2)          [F20,F81-OS1.1]
                                                                                                     (1)         [F82-OS1.1]
                                                                                                                                                                                       [F20,F81-OH5]
                                                                                                                 [F82-OH5]
                                                                                                                                                                          (3)          [F20,F81-OS1.1]
                                                                                                                 [F82-OP1.1]
                                                                                                                                                                                       [F20,F81-OH5]
                                                                                                     4.3.7.8. Drainage
                                                                                                                                                                          (4)          [F81,F04,F20-OS1.1]
                                                                                                     (1)         [F81,F44-OS1.1] [F12-OS1.2]
                                                                                                                                                                                       [F81,F04,F20-OH5]
                                                                                                                 [F01,F02-OS1.1] Applies to the accumulation of liquids
                                                                                                                 and debris.                                              4.3.8.4. Damage Repair

                                                                                                                 [F81,F44-OH5]                                            (1)          [F82-OH5]

                                                                                                                 [F81,F44-OP1.1] [F12-OP1.2]                                           [F82-OS1.1]

                                                                                                     (3)         (a) [F44-OS1.1]                                          (2)          [F82-OS1.1]

                                                                                                                 (b),(c) [F12-OS1.1]                                                   [F82-OH5]

                                                                                                                 (b),(c) [F12-OP1.1]                                      4.3.8.5. Damage Prevention

                                                                                                                 (a) [F44-OP1.1]                                          (1)          [F81-OS1.1]

                                                                                                                 (a) [F44-OH5]                                                         [F81-OH5]

                                                                                                     4.3.7.9. Use of Secondary Containment                                (2)          [F81-OS1.1]

                                                                                                     (1)         [F81,F44,F01,F02-OS1.1] [F12-OS1.2]                                   [F81-OH5]

                                                                                                                 [F81,F44,F01,F02-OP1.1] [F12-OP1.2]                      4.3.8.6. Installation

                                                                                                                 [F81,F44,F01,F02,F12-OH5]                                (1)          [F81-OS1.1]

                                                                                                     4.3.8.1. Construction                                                             [F81-OH5]

                                                                                                     (1)         [F43,F44-OH5]                                            (2)          [F81-OS1.1]

                                                                                                                 [F43,F44-OS3.4]                                                       [F81-OH5]

                                                                                                                 [F01,F43,F44-OS1.1]                                      (3)          [F20-OS1.1]

                                                                                                                 [F01,F43,F44-OP1.1]                                                   [F20-OH5]

                                                                                                     4.3.8.2. Location                                                    4.3.8.7. Filling

                                                                                                     (1)         [F81,F20-OS1.1]                                          (1)          [F43-OS1.1]

                                                                                                                 [F81,F20-OH5]                                                         [F43-OH5]




                                                                                                    National Fire Code of Canada 2020                                                                                            Division B 4-77
                                                                                                    4.13.1.1.                                                                                                           Division B

                                                                                                                       Table 4.13.1.1. (Continued)                                        Table 4.13.1.1. (Continued)

                                                                                                     Provision              Functional Statements and Objectives (1)   Provision            Functional Statements and Objectives (1)
                                                                                                    4.3.8.9. Anchorage                                                 4.3.11.3. Installation
                                                                                                    (1)          [F22-OS1.1]                                           (1)         [F01-OS1.1]
                                                                                                                 [F22-OH5]                                                         (a) [F43-OS1.1] Applies to the vent pipe outlets being
                                                                                                                                                                                   higher than the fill pipe openings.
                                                                                                    (2)          [F81-OS1.1]
                                                                                                                                                                                   (a) [F43-OH5] Applies to the vent pipe outlets being
                                                                                                                 [F81-OH5]
                                                                                                                                                                                   higher than the fill pipe openings.
                                                                                                    4.3.9.1. Installation
                                                                                                                                                                       (2)         [F01-OS1.1] Applies to portion of Code text: “Vent pipe




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                                                                                                    (1)          [F44-OH5]                                                         outlets from underground storage tanks for Class II or IIIA
                                                                                                                 [F44-OS3.4]                                                       liquids shall be located outside buildings …”

                                                                                                                 [F01,F44-OS1.1]                                                   [F43-OS1.1] Applies to the requirement for vent pipe
                                                                                                                                                                                   outlets to be located outside buildings at a height that is
                                                                                                                 [F01,F44-OP1.1]                                                   above the fill pipe opening.
                                                                                                    (2)          [F43,F44-OH5]                                                     [F01-OS1.1] Applies to the requirement for vent pipe
                                                                                                                 [F43,F44-OS3.4]                                                   outlets to be located outside buildings at not less than 2
                                                                                                                                                                                   m above finished ground level.
                                                                                                                 [F01,F43,F44-OS1.1]
                                                                                                                                                                                   [F43-OH5] Applies to the requirement for the vent pipe
                                                                                                                 [F01,F43,F44-OP1.1]                                               outlets to be located outside buildings at a height that is
                                                                                                    (3)          [F43,F44-OH5]                                                     above the fill pipe opening.
                                                                                                                 [F30,F43,F44-OS3.4]                                   (3)         [F20,F81-OS1.1] Applies to the requirement for vent
                                                                                                                                                                                   pipes to not be obstructed by any device that may cause
                                                                                                                 [F01,F43,F44-OS1.1]                                               excessive back pressure.
                                                                                                                 [F01,F43,F44-OP1.1]                                               [F20,F81-OH5] Applies to the requirement for vent pipes
                                                                                                    (4)          [F44,F82-OH5]                                                     to not be obstructed by any device that may cause
                                                                                                                                                                                   excessive back pressure.
                                                                                                                 [F44,F82-OS3.4]
                                                                                                                                                                       (4)         [F20,F81-OS1.1]
                                                                                                                 [F01,F44,F82-OS1.1]
                                                                                                                                                                                   [F20,F81-OH5]
                                                                                                                 [F01,F44,F82-OP1.1]
                                                                                                                                                                       (5)         (a),(b),(c) [F81,F20-OS1.1]
                                                                                                    4.3.9.2. Construction
                                                                                                                                                                                   (d) [F81-OS1.1]
                                                                                                    (1)          [F20,F44,F80,F81-OH5]
                                                                                                                                                                                   (a),(b),(c) [F81,F20-OH5]
                                                                                                                 [F20,F44,F80,F81-OS3.4]
                                                                                                                                                                                   (d) [F81-OH5]
                                                                                                                 [F20,F01,F44,F80,F81-OS1.1]
                                                                                                                                                                       4.3.11.4. Interconnection of Vent Pipes
                                                                                                                 [F20,F01,F44,F80,F81-OP1.1]
                                                                                                                                                                       (1)         [F20,F81-OS1.1]
                                                                                                    4.3.9.3. Leak Detection Monitoring
                                                                                                                                                                                   [F20,F81-OH5]
                                                                                                    (1)          [F43,F82-OS1.1]
                                                                                                                                                                       (2)         [F20-OS1.1]
                                                                                                                 [F43,F82-OS3.4]
                                                                                                                                                                                   [F20-OH5]
                                                                                                                 [F43,F82-OP1.1]
                                                                                                                                                                       (3)         [F01-OS1.1]
                                                                                                                 [F43,F82-OH5]
                                                                                                                                                                       4.3.12.1. Connections
                                                                                                    4.3.10.1. Corrosion Protection
                                                                                                                                                                       (1)         [F43,F01-OS1.1]
                                                                                                    (1)          [F80-OS1.1]
                                                                                                                                                                                   [F43-OH5]
                                                                                                                 [F80-OH5]
                                                                                                                                                                       4.3.12.2. Openings for Measuring Liquid Level
                                                                                                    4.3.11.1. Vent Design
                                                                                                                                                                       (1)         [F43,F01,F81,F34-OS1.1]
                                                                                                    (1)          [F20,F81-OS1.1]
                                                                                                                                                                                   [F43,F81,F34-OH5]
                                                                                                                 [F20,F81-OH5]




                                                                                                    4-78 Division B                                                                                    National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                    4.13.1.1.

                                                                                                                       Table 4.13.1.1. (Continued)                                                Table 4.13.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)              Provision           Functional Statements and Objectives (1)
                                                                                                     4.3.12.3. Fill Piping and Discharge Piping                                4.3.13.5. Storage Tank Construction
                                                                                                     (1)         [F43-OS1.1] Applies to portion of Code text: “Fill piping     (1)         (a) [F01,F20,F43,F80,F81-OS1.1]
                                                                                                                 and discharge piping shall enter underground storage
                                                                                                                                                                                           (a) [F01,F20,F43,F80,F81-OP1.1]
                                                                                                                 tanks only through the top of the tank …”
                                                                                                                                                                                           (b) [F01,F43,F82-OS1.1]
                                                                                                                 [F43-OS1.1] Applies to portion of Code text: “… discharge
                                                                                                                 piping used in suction systems shall be sloped toward the                 (b) [F01,F43,F82-OP1.1]
                                                                                                                 storage tanks.”                                                           (b) [F20,F43,F80,F81-OH5]




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                 [F43-OH5] Applies to portion of Code text: “Fill piping and   (2)         (b) [F01,F43,F82-OS1.1]
                                                                                                                 discharge piping shall enter underground storage tanks
                                                                                                                 only through the top of the tank …”                                       (b) [F01,F43,F82-OP1.1]
                                                                                                                 [F43-OH5] Applies to portion of Code text: “… discharge                   (b) [F20,F43,F80,F81-OH5]
                                                                                                                 piping used in suction systems shall be sloped toward the     4.3.13.6. Piping Systems
                                                                                                                 storage tanks”.
                                                                                                                                                                               (1)         [F01-OS1.1]
                                                                                                     (2)         [F43-OS1.1]
                                                                                                                                                                                           [F01-OP1.1]
                                                                                                                 [F43-OH5]
                                                                                                                                                                               4.3.13.7. Fire Compartments
                                                                                                     (3)         (a),(b) [F01-OS1.1]
                                                                                                                                                                               (1)         [F03-OP1.2]
                                                                                                                 (a),(c) [F01-OS1.1]
                                                                                                                                                                                           [F03-OS1.2]
                                                                                                     (4)         [F43,F01-OS1.1]
                                                                                                                                                                               4.3.13.8. Mixed Storage
                                                                                                                 [F43-OH5]
                                                                                                                                                                               (1)         [F01-OS1.1] [F02-OS1.2]
                                                                                                     (5)         [F01-OS1.1]
                                                                                                                                                                                           [F01-OP1.1] [F02-OP1.2]
                                                                                                     (6)         (a) [F43,F44,F82-OH5]
                                                                                                                                                                               4.3.13.9. Storage Tanks outside Storage Rooms
                                                                                                                 (a) [F43,F44,F82-OS3.4]
                                                                                                                                                                               (1)         (a) [F44-OS1.1]
                                                                                                                 (a) [F01,F43,F44,F82-OS1.1]
                                                                                                                                                                                           (a) [F44-OP1.1]
                                                                                                                 (a) [F01,F43,F44,F82-OP1.1]
                                                                                                                                                                                           (a) [F44-OH5]
                                                                                                                 (b) [F01,F43-OS1.1]
                                                                                                                                                                                           [F01-OS1.1]
                                                                                                                 (b) [F01,F43-OP1.1]
                                                                                                                                                                               4.3.13.10. Vents
                                                                                                                 (b) [F43-OH5]
                                                                                                                                                                               (2)         [F01-OS1.1]
                                                                                                                 (c) [F43,F44,F82-OS3.4]
                                                                                                                                                                               4.3.13.11. Supports, Foundations and Anchorage
                                                                                                                 (c) [F01,F43,F44,F82-OP1.1]
                                                                                                                                                                               (2)         [F22,F81,F20,F80,F04-OS1.1]
                                                                                                                 (c) [F43,F44,F82-OH5]
                                                                                                                                                                                           [F22,F81,F04,F80,F20-OH5]
                                                                                                     (7)         [F01,F43-OS1.1]
                                                                                                                                                                               4.3.13.12. Bonding and Grounding
                                                                                                                 [F01,F43-OS3.4]
                                                                                                                 [F01,F43-OH5]                                                 (1)         [F01-OS1.1]

                                                                                                     4.3.13.1. Occupancy                                                       4.3.14.1. Design and Construction

                                                                                                     (1)         [F01,F02-OS1.1]                                               (1)         (a) [F03-OP1.2]

                                                                                                                 [F01,F02-OP1.1]                                                           (a) [F03-OS1.2]

                                                                                                     4.3.13.2. Stationary Combustion Engines                                               (c) [F44-OS1.1,OS1.2]
                                                                                                                                                                                           (b) [F44-OS1.1] Applies to portion of Code text: “…
                                                                                                     (1)         [F01,F02,F03,F04,F43,F81-OS1.1,OS1.2]
                                                                                                                                                                                           designed to contain ... 100% of the volume of the largest
                                                                                                     4.3.13.3. Maximum Static Head                                                         storage tank …”
                                                                                                     (1)         [F20-OS1.1]                                                               (c) [F44-OH5]
                                                                                                                 [F20-OH5]                                                                 (c) [F44-OP1.1,OP1.2]
                                                                                                     4.3.13.4. Maximum Quantities and Location                                             (b) [F44-OP1.1] Applies to portion of Code text: “…
                                                                                                                                                                                           designed to contain ... 100% of the volume of the largest
                                                                                                     (1)         (b) [F01-OS1.1] [F02-OS1.2]
                                                                                                                                                                                           storage tank …”
                                                                                                                 (b) [F01-OP1.1] [F02-OP1.2]
                                                                                                                                                                                           (b) [F44-OH5] Applies to portion of Code text: “…
                                                                                                                                                                                           designed to contain ... 100% of the volume of the largest
                                                                                                                                                                                           storage tank …”



                                                                                                    National Fire Code of Canada 2020                                                                                              Division B 4-79
                                                                                                    4.13.1.1.                                                                                                     Division B

                                                                                                                      Table 4.13.1.1. (Continued)                                    Table 4.13.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)   Provision          Functional Statements and Objectives (1)
                                                                                                    4.3.14.2. Clearances                                            4.4.1.2. Frequency and Methods of Leak Detection Testing and
                                                                                                                                                                    Monitoring
                                                                                                    (1)          [F82-OS1.1]
                                                                                                                                                                    (1)         [F82-OS1.1]
                                                                                                                 [F82-OH5]
                                                                                                                                                                                [F82-OH5]
                                                                                                                 [F82-OP1.1]
                                                                                                                                                                                [F82-OP1.1]
                                                                                                    4.3.14.3. Explosion Venting
                                                                                                                                                                    (3)         [F82-OS1.1]
                                                                                                    (1)          [F02-OS1.3]
                                                                                                                                                                                [F82-OH5]




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                 [F02-OP1.3]
                                                                                                                                                                                [F82-OP1.1]
                                                                                                                 [F02-OP3.1]
                                                                                                                                                                    (6)         [F43,F44-OS3.4]
                                                                                                    4.3.14.4. Placards
                                                                                                                                                                                [F01,F43,F44-OS1.1]
                                                                                                    (1)          [F12-OS1.2]
                                                                                                                                                                                [F01,F43,F44-OP1.1]
                                                                                                                 [F12-OP1.2]
                                                                                                                                                                    4.4.1.3. Remedial Action
                                                                                                    4.3.15.1. Connections
                                                                                                                                                                    (1)         [F01,F44,F82-OS1.1]
                                                                                                    (1)          [F43,F01-OS1.1]
                                                                                                                                                                                [F44,F82-OH5]
                                                                                                                 [F43-OH5]
                                                                                                                                                                                [F01,F44,F82-OP1.1]
                                                                                                    (2)          [F44-OS1.1]
                                                                                                                                                                    4.4.2.1. Definition and Performance of Leak Detection Testing
                                                                                                                 [F44-OH5]                                          and Monitoring Methods
                                                                                                                 [F44-OP1.1]                                        (2)         [F82,F01-OS1.1]
                                                                                                    4.3.15.2. Openings for Liquid Level Measurement                             [F82,F01-OP1.1]
                                                                                                    (1)          [F43,F01,F81,F34-OS1.1]                                        [F82,F43-OH5]
                                                                                                                 [F43,F81-OH5]                                      (3)         [F01-OS1.1]
                                                                                                    (2)          [F20,F81-OS1.1]                                                [F43-OH5]
                                                                                                                 [F20,F81-OH5]                                                  [F01-OP1.1]
                                                                                                    4.3.16.1. Underground Storage Tanks                             (4)         [F01-OP1.1]
                                                                                                    (1)          [F82,F01,F43,F81-OS1.1]                                        [F01-OS1.1]
                                                                                                                 [F82,F81-OH5]                                                  [F43-OH5]
                                                                                                    4.3.16.2. Aboveground Storage Tanks                             (5)         [F01,F43,F82-OS1.1]
                                                                                                    (1)          [F34-OS1.1]                                                    [F01,F43,F82-OP1.1]
                                                                                                                 [F34-OH5]                                                      [F43,F82-OH5]
                                                                                                    (2)          [F82-OS1.1]                                        (6)         [F01,F82-OS1.1]
                                                                                                                 [F82-OP1.1]                                                    [F01,F82-OP1.1]
                                                                                                                 [F82-OH5]                                                      [F43,F82-OH5]
                                                                                                    (3)          [F43,F01-OS1.1]                                    (7)         [F01,F43,F82-OS1.1]
                                                                                                                 [F43-OH5]                                                      [F01,F43,F82-OP1.1]
                                                                                                    4.3.16.3. Disposal                                                          [F43,F82-OH5]
                                                                                                    (1)          [F81-OS1.1]                                        (8)         [F82,F81-OS1.1]
                                                                                                                 [F81-OH5]                                                      [F43,F82-OH5]
                                                                                                    4.3.16.4. Underground Piping Systems                                        [F82-OP1.1]
                                                                                                    (1)          [F01,F43,F81,F82-OS1.1]                            (10)        [F01,F82-OS1.1]
                                                                                                                 [F43,F81,F82-OH5]                                              [F82-OH5]
                                                                                                                                                                    (11)        [F01,F82-OS1.1]
                                                                                                                                                                                [F82-OH5]
                                                                                                                                                                                [F01,F82-OP1.1]




                                                                                                    4-80 Division B                                                                               National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                4.13.1.1.

                                                                                                                      Table 4.13.1.1. (Continued)                                             Table 4.13.1.1. (Continued)

                                                                                                     Provision          Functional Statements and Objectives (1)         Provision             Functional Statements and Objectives (1)
                                                                                                     (12)        [F82-OS1.1]                                             (7)         [F81-OS1.1]
                                                                                                                 [F82-OP1.1]                                                         [F81-OP1.1]
                                                                                                                 [F82-OH5]                                                           [F81-OH5]
                                                                                                     4.4.3.1. Leak Detection Tests                                       (8)         [F43-OS1.1]
                                                                                                     (1)         [F01,F82-OS1.1]                                         4.4.3.5. Protocols for Leak Detection Testing of Sumps
                                                                                                                 [F01,F82-OP1.1]                                         (3)         [F82-OS1.1]




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                 [F43,F82-OH5]                                                       [F82-OH5]
                                                                                                     (3)         [F20,F81-OS1.1]                                                     [F82-OP1.1]
                                                                                                     4.4.3.2. Pneumatic Leak Detection Tests                             (4)         [F82-OS1.1]
                                                                                                     (1)         [F01-OS1.1]                                                         [F82-OH5]
                                                                                                     (2)         [F81-OS1.1]                                             4.4.4.1. Inventory Reconciliation
                                                                                                                 [F81-OH5]                                               (1)         [F82-OS1.1]
                                                                                                                 [F81-OP1.1]                                                         [F82-OP1.1]
                                                                                                     (4)         [F20,F81-OS1.1]                                                     [F82-OH5]
                                                                                                                 [F20,F81-OS3.4]                                         (2)         [F82-OS1.1]
                                                                                                     (5)         [F20,F81-OS1.1]                                                     [F82-OH5]
                                                                                                                 [F20,F81-OS3.4]                                         (3)         [F82-OS1.1]
                                                                                                     (6)         [F01-OS1.1]                                                         [F82-OH5]
                                                                                                     4.4.3.3. Protocols for Pneumatic Leak Detection Testing of Piping               [F82-OP1.1]
                                                                                                     Systems
                                                                                                                                                                         4.4.4.2. Leakage Detection
                                                                                                     (3)         [F43-OS1.1]
                                                                                                                                                                         (1)         [F81,F82-OS1.1]
                                                                                                                 [F43-OH5]
                                                                                                                                                                                     [F81,F82-OH5]
                                                                                                     (4)         [F43-OS1.1]
                                                                                                                                                                         4.5.2.1. Materials
                                                                                                                 [F43-OH5]
                                                                                                                                                                         (1)         [F20-OS1.1] This applies to the suitability of materials
                                                                                                     (5)         [F82-OS1.1]                                                         for the maximum anticipated working pressures and
                                                                                                                 [F82-OH5]                                                           operating temperatures.

                                                                                                                 [F82-OP1.1]                                                         [F20-OH5] This applies to the suitability of materials
                                                                                                                                                                                     for the maximum anticipated working pressures and
                                                                                                     (6)         [F82-OS1.1]                                                         operating temperatures.
                                                                                                                 [F82-OH5]                                                           [F80-OS1.1] Applies to the suitability of materials for the
                                                                                                                 [F82-OP1.1]                                                         chemical properties of the contained liquid.
                                                                                                     (7)         [F82-OP1.1]                                                         [F80-OH5] Applies to the suitability of materials for the
                                                                                                                                                                                     chemical properties of the contained liquid.
                                                                                                                 [F82-OH5]
                                                                                                                                                                                     [F20-OP1.1] This applies to the suitability of materials
                                                                                                                 [F82-OS1.1]                                                         for the maximum anticipated working pressures and
                                                                                                     4.4.3.4. Protocols for Liquid Media Leak Detection Testing of                   operating temperatures.
                                                                                                     Piping Systems                                                                  [F80-OP1.1] Applies to the suitability of materials for the
                                                                                                     (2)         [F01,F82-OS1.1]                                                     chemical properties of the contained liquid.
                                                                                                                 [F01,F82-OP1.1]                                         (2)         (a) [F20-OS1.1]
                                                                                                     (3)         [F01,F82-OS1.1]                                                     (a) [F20-OH5]
                                                                                                                 [F01,F82-OP1.1]                                                     (b) [F04-OS1.1]
                                                                                                                 [F43,F82-OH5]                                                       (b) [F04-OH5]
                                                                                                     (4)         [F82-OS1.1]                                                         (a) [F20-OP1.1]
                                                                                                                 [F82-OP1.1]                                                         (b) [F04-OP1.1]
                                                                                                                 [F82-OH5]
                                                                                                     (5)         [F20,F81-OS1.1]


                                                                                                    National Fire Code of Canada 2020                                                                                          Division B 4-81
                                                                                                    4.13.1.1.                                                                                                          Division B

                                                                                                                       Table 4.13.1.1. (Continued)                                         Table 4.13.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)      Provision            Functional Statements and Objectives (1)
                                                                                                    (3)          [F20,F80-OS1.1]                                       4.5.5.3. Flanged Joints
                                                                                                                 [F20,F80-OP1.1]                                       (1)         [F20,F43,F80,F81-OP1.1]
                                                                                                                 [F20,F80-OH5]                                                     [F20,F43,F80,F81-OS1.1]
                                                                                                    (4)          [F20,F43,F80,F81-OS1.1]                                           [F20,F43,F80,F81-OH5]
                                                                                                                 [F20,F43,F80,F81-OP1.1]                               4.5.5.4. Bolting Materials
                                                                                                                 [F20,F43,F80,F81-OH5]                                 (1)         [F04-OP1.1]




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                    (5)          [F20,F43,F80,F81-OS1.1]                                           [F04-OS1.1]
                                                                                                                 [F20,F43,F80,F81-OP1.1]                                           [F04-OH5]
                                                                                                                 [F20,F43,F80,F81-OH5]                                 4.5.5.5. Gaskets
                                                                                                    4.5.2.2. Special Materials                                         (1)         [F20,F04-OP1.1]
                                                                                                    (1)          [F80,F81,F20-OS1.1]                                               [F04,F20-OS1.1]
                                                                                                                 [F80,F81,F20-OP1.1]                                               [F04,F20-OH5] Applies to portion of Code text: “Gaskets
                                                                                                                 [F80,F81,F20-OH5]                                                 in flanged connections shall be of a material resistant to
                                                                                                                                                                                   the liquid being carried …”
                                                                                                    4.5.3.1. Corrosion Protection
                                                                                                                                                                       4.5.5.6. Mechanical Connections
                                                                                                    (1)          [F80-OP1.1]
                                                                                                                                                                       (1)         (a) [F82-OS1.1]
                                                                                                                 [F80-OS1.1]                                                       (b) [F80-OS1.1]
                                                                                                                 [F80-OH5]                                                         (a) [F82-OP1.1]
                                                                                                    4.5.4.1. Identification                                                        (b) [F80-OP1.1]

                                                                                                    (1)          [F81-OS1.1] [F12-OS1.2]                                           (a) [F82-OH5]
                                                                                                                                                                                   (b) [F80-OH5]
                                                                                                    (2)          [F81-OS1.1]
                                                                                                                                                                                   (c) [F43,F44-OH5]
                                                                                                                 [F81-OH5]
                                                                                                                                                                                   (c) [F01,F43,F44-OS3.4]
                                                                                                    (3)          [F81-OS1.1] [F12-OS1.2]
                                                                                                                                                                                   (c) [F01,F43,F44-OS1.1]
                                                                                                                 [F12-OP1.2]
                                                                                                                                                                                   (c) [F01,F43,F44-OP1.1]
                                                                                                    4.5.4.2. Documentation
                                                                                                                                                                       4.5.5.7. Penetrations into Sumps
                                                                                                    (1)          [F12-OS1.2]
                                                                                                                                                                       (1)         [F43,F81-OH5]
                                                                                                                 [F12-OH5]
                                                                                                                                                                                   [F43,F81-OS3.4]
                                                                                                                 [F12-OP1.2]
                                                                                                                                                                                   [F01,F43-OS1.1]
                                                                                                    (2)          [F12-OS1.2]
                                                                                                                                                                                   [F01,F43-OP1.1]
                                                                                                                 [F12-OP1.2]
                                                                                                                                                                       4.5.6.1. Construction
                                                                                                                 [F12-OH5]
                                                                                                                                                                       (1)         [F43,F44-OH5]
                                                                                                    4.5.5.1. Threaded Joints
                                                                                                                                                                                   [F43,F44-OS3.4]
                                                                                                    (1)          [F43-OP1.1]
                                                                                                                                                                                   [F01,F43,F44-OS1.1]
                                                                                                                 [F43-OS1.1]
                                                                                                                                                                                   [F01,F43,F44-OP1.1]
                                                                                                                 [F43-OH5]
                                                                                                                                                                       4.5.6.2. Location
                                                                                                    4.5.5.2. Welded Piping
                                                                                                                                                                       (1)         [F43-OS1.1]
                                                                                                    (1)          [F20-OP1.1] Applies to conformance to provincial or
                                                                                                                 territorial regulations or municipal by-laws.                     [F43-OP1.1]

                                                                                                                 [F20-OH5] Applies to conformance to provincial or     (2)         [F43-OS1.1]
                                                                                                                 territorial regulations or municipal by-laws.                     [F43-OP1.1]
                                                                                                                 [F20-OS1.1] Applies to conformance to provincial or               [F43-OH5]
                                                                                                                 territorial regulations or municipal by-laws.
                                                                                                                                                                       (3)         [F81-OS1.1]
                                                                                                    (2)          [F01-OS1.1]
                                                                                                                                                                                   [F81-OP1.1]
                                                                                                                                                                                   [F81-OH5]




                                                                                                    4-82 Division B                                                                                    National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                               4.13.1.1.

                                                                                                                      Table 4.13.1.1. (Continued)                                            Table 4.13.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)          Provision           Functional Statements and Objectives (1)
                                                                                                     4.5.6.3. Supports for Aboveground Outdoor Piping                      4.5.6.6. Installation of Underground Piping
                                                                                                     (1)         [F20,F22-OH5]                                             (1)         (a) [F20,F22-OH5]
                                                                                                                 [F20,F22-OP1.1]                                                       (a) [F20,F22-OS1.1]
                                                                                                                 [F20,F22-OS1.1]                                                       (a) [F20,F22-OP1.1]
                                                                                                     (2)         [F80-OS1.1]                                                           (b) [F21,F81,F20-OP1.1]
                                                                                                                 [F80-OH5]                                                             (b) [F21,F81,F20-OH5]




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                 [F80-OP1.1]                                                           (b) [F21,F81,F20-OS1.1]
                                                                                                     (3)         [F80,F82-OS1.1]                                           4.5.6.7. Piping in Service Tunnels
                                                                                                                 [F80,F82-OP1.1]                                           (1)         [F43-OS1.1]
                                                                                                                 [F80,F82-OH5]                                             4.5.6.8. Piping at Entrances to Buildings
                                                                                                     4.5.6.4. Arrangement of Aboveground Outdoor Piping                    (1)         [F82,F21-OS1.1]
                                                                                                     (1)         (a) [F01-OS1.1,OS1.2]                                                 [F82,F21-OH5]
                                                                                                                 (a) [F01-OP1.1,OP1.2]                                                 [F82,F21-OP1.1]
                                                                                                                 (b) [F01,F04-OS1.1]                                       (2)         [F44-OS1.1]
                                                                                                                 (b) [F01,F04-OP1.1]                                                   [F44-OH5]
                                                                                                     (2)         [F44-OS1.1] Applies to the requirement for impermeable                [F44-OP1.1]
                                                                                                                 construction.
                                                                                                                                                                           (3)         [F21-OS1.1]
                                                                                                                 [F44-OP1.1] Applies to the requirement for impermeable
                                                                                                                                                                                       [F21-OH5]
                                                                                                                 construction.
                                                                                                                                                                                       [F21-OP1.1]
                                                                                                                 [F02-OP1.2] Applies to the requirement for
                                                                                                                 noncombustible construction.                              4.5.6.9. Indoor Piping
                                                                                                                 [F02-OS1.2] Applies to the requirement for                (1)         [F81-OS1.1] Applies to indoor piping being supported
                                                                                                                 noncombustible construction.                                          overhead or being located in trenches.
                                                                                                     (3)         [F81-OS1.1]                                                           [F81-OP1.1] Applies to the requirement for indoor piping
                                                                                                                                                                                       to be supported overhead or located in trenches.
                                                                                                                 [F81-OP1.1]
                                                                                                                                                                           (2)         [F02-OS1.2] [F04-OS1.1]
                                                                                                                 [F81-OH5]
                                                                                                                                                                                       [F02-OP1.2] [F04-OP1.1]
                                                                                                     (4)         [F21,F04-OS1.1]
                                                                                                                                                                           (3)         [F02,F03-OS1.2]
                                                                                                                 [F04,F21-OP1.1]
                                                                                                                                                                                       [F02,F03-OP1.2]
                                                                                                                 [F04,F21-OH5] Applies to designing to prevent excessive
                                                                                                                 stress resulting from settlement.                         4.5.6.11. Overhead Piping
                                                                                                     4.5.6.5. Arrangement of Underground Piping                            (1)         [F81-OS1.1]
                                                                                                     (1)         [F81,F21-OS1.1]                                                       [F81-OP1.1]
                                                                                                                 [F81,F21-OP1.1]                                           (2)         [F20-OS1.1]
                                                                                                                 [F81,F21-OH5]                                                         [F20-OP1.1]
                                                                                                     (2)         [F81,F20-OS1.1]                                           (3)         [F20-OS1.1]
                                                                                                                 [F81,F20-OP1.1]                                                       [F20-OP1.1]
                                                                                                                 [F81,F20-OH5]                                             (4)         [F20-OS1.1]
                                                                                                     (3)         [F81,F21-OH5]                                                         [F20-OP1.1]
                                                                                                                 [F81,F21-OS1.1]                                           4.5.6.12. Supports for Overhead Piping
                                                                                                                 [F81,F21-OP1.1]                                           (1)         [F20-OS1.1]
                                                                                                     (4)         [F81,F21-OH5]                                                         [F20-OP1.1]
                                                                                                                 [F81,F21-OS1.1]                                           (2)         [F20-OS1.1]
                                                                                                                 [F81,F21-OP1.1]                                                       [F20-OP1.1]




                                                                                                    National Fire Code of Canada 2020                                                                                          Division B 4-83
                                                                                                    4.13.1.1.                                                                                                           Division B

                                                                                                                       Table 4.13.1.1. (Continued)                                         Table 4.13.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)       Provision            Functional Statements and Objectives (1)
                                                                                                    4.5.6.13. Protection of Pipe Risers                                 4.5.7.4. Globe Valves
                                                                                                    (1)          [F81-OS1.1]                                            (1)         [F20-OS1.1]
                                                                                                                 [F81-OP1.1]                                                        [F20-OH5]
                                                                                                    4.5.6.14. Provision for Expansion and Contraction                               [F20-OP1.1]
                                                                                                    (1)          [F21-OP1.1]                                            4.5.7.5. Indicating Valves
                                                                                                                 [F21-OH5]                                              (1)         [F12-OS1.1]




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                 [F21-OS1.1]                                                        [F12-OH5]
                                                                                                    (2)          [F20,F21,F81-OS1.1]                                                [F12-OP1.1]
                                                                                                                 [F20,F21,F81-OP1.1]                                    4.5.7.6. Identification
                                                                                                                 [F20,F21,F81-OH5]                                      (1)         [F12,F81-OS1.1]
                                                                                                    4.5.7.1. Design                                                                 [F12-OH5]
                                                                                                    (1)          [F20,F81-OS1.1]                                                    [F12,F81-OP1.1]
                                                                                                                 [F20,F81-OH5]                                          (2)         [F12,F81-OS1.1]
                                                                                                                 [F81,F20-OP1.1]                                                    [F12-OH5]
                                                                                                    (2)          [F81,F20-OS1.1]                                                    [F12,F81-OP1.1]
                                                                                                                 [F81,F20-OH5]                                          4.5.8.1. Design
                                                                                                                 [F81,F20-OP1.1]                                        (1)         [F01,F81,F20-OS1.1]
                                                                                                    (3)          [F81,F20-OS1.1]                                        4.5.8.2. Steam Heating
                                                                                                                 [F81,F20-OH5]                                          (1)         [F20,F81-OS1.1] Applies to the minimum steam
                                                                                                                 [F81,F20-OP1.3]                                                    temperature needed to make the liquid being used fluid.

                                                                                                    4.5.7.2. Shut-off Valves                                                        [F20,F81-OS1.1] Applies to the minimum steam pressure
                                                                                                                                                                                    needed to make the liquid being used fluid.
                                                                                                    (1)          [F44-OS1.1]
                                                                                                                                                                                    [F20,F81-OH5] Applies to the minimum steam pressure
                                                                                                                 [F44-OH5]                                                          needed to make the liquid being used fluid.
                                                                                                                 [F44-OP1.1]                                                        [F20,F81-OP1.1] Applies to the minimum steam
                                                                                                    (2)          [F44,F12-OS1.1]                                                    temperature needed to make the liquid being used fluid.

                                                                                                                 [F44,F12-OH5]                                                      [F20,F81-OP1.1] Applies to the minimum steam pressure
                                                                                                                                                                                    needed to make the liquid being used fluid.
                                                                                                                 [F44,F12-OP1.1]
                                                                                                                                                                        (2)         [F81,F20-OP1.1]
                                                                                                    (3)          (a),(b),(c),(d),(e) [F12,F44-OS1.1] Applies to the
                                                                                                                 requirement for shut-off valves.                                   [F81,F20-OH5]

                                                                                                                 [F04,F20-OP1.1] Applies to the requirement for steel               [F81,F20-OS1.1]
                                                                                                                 shut-off valves.                                       (3)         [F01,F81-OS1.1]
                                                                                                                 (a),(b),(c),(d),(e) [F12,F44-OH5] Applies to the                   [F01,F81-OP1.1]
                                                                                                                 requirement for shut-off valves.
                                                                                                                                                                        4.5.8.4. Thermal Electrical Conduction Heating
                                                                                                                 (a),(b),(c),(d),(e) [F12,F44-OP1.1] Applies to the
                                                                                                                 requirement for shut-off valves.                       (2)         (a),(b),(c) [F01-OS1.1]

                                                                                                                 [F04,F20-OS1.1] Applies to the requirement for steel               (b) [F81,F20-OS1.1]
                                                                                                                 shut-off valves.                                                   (d) [F01-OS1.1]
                                                                                                                 [F04,F20-OH5] Applies to the requirement for steel                 (b) [F81,F20-OP1.1]
                                                                                                                 shut-off valves.
                                                                                                                                                                        (3)         [F82,F01,F20-OS1.1]
                                                                                                    (4)          [F81,F04,F20-OS1.1]
                                                                                                                                                                                    [F82,F20-OP1.1]
                                                                                                                 [F81,F20-OH5]
                                                                                                                                                                        4.5.8.5. Open Flames
                                                                                                                 [F81,F04,F20-OP1.1]
                                                                                                                                                                        (1)         [F01-OS1.1]
                                                                                                    4.5.7.3. Diaphragm Valves
                                                                                                    (1)          [F43-OS1.1]
                                                                                                                 [F43-OP1.1]



                                                                                                    4-84 Division B                                                                                    National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                        4.13.1.1.

                                                                                                                           Table 4.13.1.1. (Continued)                                                 Table 4.13.1.1. (Continued)

                                                                                                     Provision               Functional Statements and Objectives (1)             Provision             Functional Statements and Objectives (1)
                                                                                                     4.5.9.1. Location of Outdoor Pumps                                           (4)         [F81,F20-OS1.1]
                                                                                                     (1)             (a) [F01-OP3.1]                                                          [F81,F20-OH5]
                                                                                                                     (b) [F01-OS1.1]                                                          [F81,F20-OP1.1]
                                                                                                                     (b) [F01-OP3.1]                                              (5)         [F81,F20-OS1.1]
                                                                                                                     (a) [F01-OS1.1]                                                          [F81,F20-OH5]
                                                                                                     4.5.9.2. Pump Houses and Pump Rooms                                                      [F81,F20-OP1.1]




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                     (2)             [F01-OS1.1] [F02-OS1.2]                                      (6)         [F81-OS1.1]
                                                                                                                     [F01-OP1.1] [F02-OP1.2]                                                  [F81-OH5]
                                                                                                     4.5.9.3. Pits                                                                            [F81-OP1.1]
                                                                                                     (1)             [F20,F81-OS1.1]                                              4.5.9.6. Inert Gas Transfer Systems
                                                                                                                     [F20,F81-OH5]                                                (1)         [F81,F82,F20-OS1.1]
                                                                                                     (2)             [F01-OS1.1] [F02-OS1.2] Applies to the size of pits                      [F81,F82,F20-OH5]
                                                                                                                     not being larger than required for inspection and                        [F81,F82,F20-OP1.1]
                                                                                                                     maintenance.
                                                                                                                                                                                  (2)         [F81,F20-OS1.1]
                                                                                                                     [F81-OS1.1] Applies to the requirement for the pits to be
                                                                                                                     provided with a cover.                                                   [F81,F20-OH5]
                                                                                                                     [F01-OP1.1] [F02-OP1.2] Applies to the size of pits                      [F81,F20-OP1.1]
                                                                                                                     not being larger than required for inspection and            (3)         [F81,F20-OS1.1]
                                                                                                                     maintenance.
                                                                                                                                                                                              [F81,F20-OH5]
                                                                                                     4.5.9.4. Control Switches
                                                                                                                                                                                              [F81,F20-OP1.1]
                                                                                                     (1)             [F44-OS1.1] Applies to the requirement to have control
                                                                                                                     switches to shut down the pumps in case of emergency.        (4)         [F81,F04-OS1.1]
                                                                                                                     [F44-OP1.1] Applies to the requirement to have control                   [F81,F04-OH5]
                                                                                                                     switches to shut down the pumps in case of emergency.                    [F81,F04-OP1.1]
                                                                                                                     [F44-OH5] Applies to the requirement to have control         4.5.9.7. Non-Inert Gas Transfer
                                                                                                                     switches to shut down the pumps in case of emergency.
                                                                                                                                                                                  (1)         [F01-OS1.1]
                                                                                                                     [F12-OP1.1] Applies to the requirement to locate one of
                                                                                                                     the 2 control switches in the operating area and the other   (2)         [F01-OS1.1]
                                                                                                                     at a remote location.                                        4.5.10.1. Procedures
                                                                                                                     [F12-OH5] Applies to the requirement to locate one of the    (1)         [F12-OS1.1]
                                                                                                                     2 control switches in the operating area and the other
                                                                                                                     at a remote location.                                                    [F12-OH5]
                                                                                                                     [F12-OS1.1] Applies to the requirement to locate one of                  [F12-OP1.1]
                                                                                                                     the 2 control switches in the operating area and the other   4.5.10.2. Training
                                                                                                                     at a remote location.
                                                                                                                                                                                  (1)         (b) [F12-OS1.1]
                                                                                                     4.5.9.5. Hydraulic Transfer Systems
                                                                                                                                                                                              (b) [F12-OP1.1]
                                                                                                     (1)             [F81-OS1.1]
                                                                                                                                                                                              (b) [F12-OH5]
                                                                                                                     [F81-OH5]
                                                                                                                                                                                              (c) [F12-OS1.2]
                                                                                                                     [F81-OP1.1]
                                                                                                                                                                                              (c) [F12-OP1.2]
                                                                                                     (2)             [F81,F20,F82-OS1.1]
                                                                                                                                                                                              (d) [F12,F81-OS1.1]
                                                                                                                     [F81,F20,F82-OH5]
                                                                                                                                                                                              (d) [F12,F81-OP1.1]
                                                                                                                     [F81,F82,F20-OP1.1]
                                                                                                                                                                                              (d) [F12-OH5]
                                                                                                     (3)             [F81,F20-OS1.1]
                                                                                                                                                                                              (a) [F12-OS1.1]
                                                                                                                     [F81,F20-OH5]
                                                                                                                                                                                              (a) [F12-OP1.1]
                                                                                                                     [F81,F20-OP1.1]
                                                                                                                                                                                              (a) [F12-OH5]




                                                                                                    National Fire Code of Canada 2020                                                                                                  Division B 4-85
                                                                                                    4.13.1.1.                                                                                                                  Division B

                                                                                                                       Table 4.13.1.1. (Continued)                                             Table 4.13.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)            Provision              Functional Statements and Objectives (1)
                                                                                                    (2)          [F12-OS1.2] Applies to the training of employees in the     (5)         [F43-OS1.1]
                                                                                                                 location, function and operation of valves used for the
                                                                                                                                                                                         [F43-OH5]
                                                                                                                 operation of fire protection equipment.
                                                                                                                                                                             (6)         [F43,F01-OS1.1]
                                                                                                                 [F12-OS1.1] Applies to the training of employees in the
                                                                                                                 location, function and operation of valves used for the                 [F43-OH5]
                                                                                                                 operation of manual emergency shut-off valves.              4.6.1.1. Application
                                                                                                                 [F12-OP1.2] Applies to the training of employees in the     (2)         [F01,F02,F03,F81-OS1.1]
                                                                                                                 location, function and operation of valves used for the




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                                                                                                                 operation of fire protection equipment.                     4.6.2.1. Outside Aboveground Storage Tanks
                                                                                                                 [F12-OP1.1] Applies to the training of employees in the     (2)         [F02-OS1.2]
                                                                                                                 location, function and operation of valves used for the                 [F02-OP1.2]
                                                                                                                 operation of the manual emergency shut-off valves.
                                                                                                                                                                             (3)         [F02-OS1.2]
                                                                                                                 [F12-OH5] Applies to the training of employees in the
                                                                                                                 location, function and operation of valves used for the                 [F02-OP1.2]
                                                                                                                 operation of the manual emergency shut-off valves.          (4)         (a) [F81-OS1.1]
                                                                                                    4.5.10.3. Emergency Valves                                                           (b) [F34-OS1.1]
                                                                                                    (1)          [F12-OS1.2,OS1.1]                                                       (a) [F81-OH5]
                                                                                                                 [F12-OH5] Applies to the requirement for signs indicating               (b) [F34-OH5]
                                                                                                                 the location of valves used for the operation of manual
                                                                                                                 emergency shut-off valves.                                              (e) [F43,F81-OS1.1]
                                                                                                                 [F12-OP1.2,OP1.1]                                                       (e) [F43,F81-OP1.1]
                                                                                                    4.5.10.4. Portable Extinguishers                                                     (e) [F43,F81-OH5]
                                                                                                    (1)          [F12,F02-OS1.2]                                             4.6.2.2. Containers
                                                                                                                 [F12,F02-OP1.2]                                             (1)         [F81,F12-OS1.1] [F12-OS1.2] Applies to the requirement
                                                                                                                                                                                         for products stored or sold at fuel-dispensing stations to
                                                                                                    4.5.10.5. Visual Inspections                                                         be in closed containers distinctly marked with the generic
                                                                                                    (1)          [F82-OS1.1]                                                             name of the liquid they contain.
                                                                                                                 [F82-OH5]                                                   4.6.2.3. Piping
                                                                                                                 [F82-OP1.1]                                                 (4)         [F20,F22-OH5] Applies to the supported portion of the
                                                                                                                                                                                         piping.
                                                                                                    (2)          [F82-OS1.1]
                                                                                                                                                                                         [F20,F22-OS1.1] Applies to the supported portion of the
                                                                                                                 [F82-OP1.1]                                                             piping.
                                                                                                                 [F82-OH5]                                                               [F20,F22-OP1.1] Applies to the supported portion of the
                                                                                                    (3)          [F82-OS1.1]                                                             piping.
                                                                                                                 [F82-OP1.1]                                                             [F21,F81,F20-OP1.1] Applies to the backfilled portion
                                                                                                                                                                                         of the piping.
                                                                                                                 [F82-OH5]
                                                                                                                                                                                         [F21,F81,F20-OH5] Applies to the backfilled portion of
                                                                                                    (4)          [F01-OS1.1]                                                             the piping.
                                                                                                    4.5.10.6. Operational Tests                                                          [F21,F81,F20-OS1.1] Applies to the backfilled portion
                                                                                                    (1)          [F82-OS1.1]                                                             of the piping.
                                                                                                                 [F82-OH5]                                                   4.6.2.5. Piping Supports and Guards
                                                                                                                 [F82-OP1.1]                                                 (1)         [F81,F22-OS1.1]
                                                                                                    4.5.10.7. Maintenance                                                                [F81,F22-OH5]
                                                                                                    (1)          [F01,F43-OS1.1]                                                         [F81,F22-OP1.1]
                                                                                                                 [F43-OH5]                                                   4.6.3.1. Dispensers
                                                                                                    (2)          [F43-OS1.1]                                                 (1)         [F01,F43-OS1.1]
                                                                                                                 [F43-OH5]                                                               [F43-OH5]
                                                                                                    (3)          [F01-OS1.1]
                                                                                                    (4)          [F81-OS1.1]
                                                                                                                 [F81-OH5]



                                                                                                    4-86 Division B                                                                                           National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                   4.13.1.1.

                                                                                                                         Table 4.13.1.1. (Continued)                                            Table 4.13.1.1. (Continued)

                                                                                                     Provision            Functional Statements and Objectives (1)            Provision           Functional Statements and Objectives (1)
                                                                                                     4.6.3.2. Dispenser Sumps                                                 (2)         [F12-OS1.1,OS1.2]
                                                                                                     (1)         [F01,F20,F44,F80,F81-OS1.1]                                              [F12-OP1.1,OP1.2]
                                                                                                                 [F20,F44,F80,F81-OS3.4]                                                  [F12-OH5]
                                                                                                                 [F01,F20,F44,F80,F81-OP1.1]                                  (3)         [F44-OS3.4] Applies to the requirement for shut-off
                                                                                                                                                                                          valves.
                                                                                                                 [F20,F44,F80,F81-OH5]
                                                                                                                                                                                          [F04,F20-OP1.1]
                                                                                                     4.6.3.3. Location
                                                                                                                                                                                          [F44-OH5] Applies to the requirement for shut-off valves.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                     (1)         (f) [F43,F01-OS1.1]
                                                                                                                                                                                          [F04,F20-OS1.1]
                                                                                                                 (f) [F01-OS1.1] Applies to the minimum distance from
                                                                                                                 any building opening.                                        4.6.4.2. Self-service Outlets
                                                                                                                 (a) [F01-OP3.1]                                              (1)         [F12,F44-OS1.1,OS1.2]
                                                                                                                 (b),(c) [F01,F81-OS1.1]                                                  [F12,F44-OP1.1,OP1.2]
                                                                                                                 (d) [F01-OS1.1]                                                          [F12,F44-OH5]
                                                                                                                 (f) [F01-OS1.1] Applies to location with respect to          (2)         [F12-OH5]
                                                                                                                 openings in buildings for the shelter of operating                       [F12-OP1.1,OP1.2]
                                                                                                                 personnel and in which there are electrical installations.
                                                                                                                                                                                          [F12-OS1.1,OS1.2]
                                                                                                     (2)         (a) [F34-OS1.1]
                                                                                                                                                                              4.6.4.3. Marine Fuel-Dispensing Stations
                                                                                                                 (b) [F12,F01-OS1.1]
                                                                                                                                                                              (1)         [F12-OS1.1]
                                                                                                                 (d) [F01-OS1.1] Applies to portion of Code text: “…
                                                                                                                 ventilation is provided in conformance … with the                        [F12-OH5]
                                                                                                                 requirements for storage garages in Subsection 6.3.1.                    [F12-OP1.1]
                                                                                                                 of Division B of the NBC.”
                                                                                                                                                                              4.6.5.1. Delivery Hose
                                                                                                                 (d) [F40-OS3.4] Applies to portion of Code text: “…
                                                                                                                 ventilation is provided in conformance … with the            (1)         [F81,F20,F43,F01-OS1.1]
                                                                                                                 requirements for storage garages in Subsection 6.3.1.                    [F81,F20,F43-OP1.1]
                                                                                                                 of Division B of the NBC.”
                                                                                                                                                                                          [F81,F20,F43-OH5]
                                                                                                     (3)         [F01,F43-OS1.1]
                                                                                                                                                                              (2)         [F43-OS1.1]
                                                                                                     4.6.3.4. Protection against Collision Damage
                                                                                                                                                                                          [F43-OP1.1]
                                                                                                     (1)         [F81-OS1.1]
                                                                                                                                                                                          [F43-OH5]
                                                                                                                 [F81-OH5]
                                                                                                                                                                              (3)         [F43-OS1.1]
                                                                                                     4.6.3.5. Marine Fuel-Dispensing Stations
                                                                                                                                                                                          [F43-OH5]
                                                                                                     (1)         [F81-OS1.1]
                                                                                                                                                                                          [F43-OP1.1]
                                                                                                                 [F81-OH5]
                                                                                                                                                                              4.6.5.2. Hose Nozzle Valves
                                                                                                     4.6.4.1. Location and Identification
                                                                                                                                                                              (1)         (b) [F81,F43,F01,F20-OS1.1]
                                                                                                     (1)         [F44-OS3.4]
                                                                                                                                                                                          (b) [F81,F43,F20-OP1.1]
                                                                                                                 [F02-OS1.1] Applies to the requirement to provide
                                                                                                                 shut-off devices to all dispensers and pumps.                            (b) [F81,F43,F20-OH5]
                                                                                                                 [F06-OS1.1] Applies to the requirement to locate the         (2)         (a) [F43-OS1.1]
                                                                                                                 shut-off devices within the specified minimum and                        (b) [F43-OS1.1]
                                                                                                                 maximum distances away from the dispensers and
                                                                                                                 pumps.                                                                   (a) [F43-OP1.1]
                                                                                                                 [F02-OP1.1] Applies to the requirement to provide                        (b) [F43-OP1.1]
                                                                                                                 shut-off devices to all dispensers and pumps.                            (a) [F43-OH5]
                                                                                                                 [F06-OP1.1] Applies to the requirement to locate the                     (b) [F43-OH5]
                                                                                                                 shut-off devices within the specified minimum and
                                                                                                                 maximum distances away from the dispensers and               (3)         [F43-OH5]
                                                                                                                 pumps.                                                                   [F43-OP1.1]
                                                                                                                                                                                          [F43-OS1.1]




                                                                                                    National Fire Code of Canada 2020                                                                                             Division B 4-87
                                                                                                    4.13.1.1.                                                                                                             Division B

                                                                                                                       Table 4.13.1.1. (Continued)                                         Table 4.13.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)        Provision             Functional Statements and Objectives (1)
                                                                                                    (4)          [F81-OS1.1]                                             4.6.7.1. Spill Control
                                                                                                                 [F81-OP1.1]                                             (1)         (b) [F44-OS1.1,OS1.2]
                                                                                                                 [F81-OH5]                                                           (b) [F44-OP1.1,OP1.2]
                                                                                                    (5)          [F43-OS1.1]                                                         (b) [F44-OH5]
                                                                                                                 [F43-OP1.1]                                             4.6.8.1. Attendants
                                                                                                                 [F43-OH5]                                               (1)         [F43,F01,F44-OS1.1]




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                    4.6.6.2. Pumps and Control Equipment                                             [F43,F44,F01-OP1.1]
                                                                                                    (1)          [F20,F81-OS1.1]                                                     [F43,F44-OH5]
                                                                                                                 [F20,F81-OP1.1]                                         (2)         [F43,F01,F34-OS1.1]
                                                                                                                 [F20,F81-OH5]                                                       [F43,F34-OH5]
                                                                                                    (2)          [F81,F20,F22-OS1.1]                                                 [F43,F01,F34-OP1.1]
                                                                                                                 [F81,F20,F22-OP1.1]                                     (3)         [F43-OH5]
                                                                                                                 [F81,F20,F22-OH5]                                                   [F43,F01-OS1.1]
                                                                                                    4.6.6.3. Emergency Valves                                                        [F43,F01-OP1.1]
                                                                                                    (1)          [F81,F04,F43-OS1.1]                                     (4)         [F81-OS1.1]
                                                                                                                 [F81,F04,F43-OP1.1]                                                 [F81-OH5]
                                                                                                                 [F81,F43-OH5]                                                       [F81-OP1.1]
                                                                                                    (2)          [F82-OS1.1]                                             (5)         [F43,F44,F12,F01,F02-OS1.1]
                                                                                                                 [F82-OP1.1]                                                         [F43,F44,F12,F01,F02-OP1.1]
                                                                                                                 [F82-OH5]                                                           [F43,F44,F12-OH5]
                                                                                                    4.6.6.4. Pump Location                                               4.6.8.2. Self-service Outlets
                                                                                                    (1)          (a) [F01-OP3.1]                                         (1)         [F81-OS1.1]
                                                                                                                 (b) [F01-OP3.1]                                                     [F81-OP1.1]
                                                                                                                 (a) [F01-OS1.1]                                                     [F81-OH5]
                                                                                                                 (b) [F01-OS1.1]                                         (2)         [F43,F44,F12,F01-OS1.1]
                                                                                                    4.6.6.5. Marine Fuel-Dispensing Stations                                         [F43,F44,F12,F01-OH5]
                                                                                                    (1)          [F81,F12,F20,F22-OS1.1]                                             [F43,F44,F12,F01-OP1.1]
                                                                                                                 [F81,F12,F20,F22-OP1.1]                                 (3)         [F44-OS1.1,OS1.2]
                                                                                                                 [F81,F12,F20,F22-OH5]                                               [F44-OH5]
                                                                                                    (2)          [F44,F02-OS1.1]                                                     [F44-OP1.1,OP1.2]
                                                                                                                 [F44,F02-OP1.1]                                         (4)         [F43,F44,F01-OS1.1]
                                                                                                                 [F44-OH5]                                                           [F43,F44,F01-OP1.1]
                                                                                                    (3)          [F22-OS1.1]                                                         [F43,F44-OH5]
                                                                                                                 [F22-OP1.1]                                             4.6.8.3. Special Dispensers
                                                                                                                 [F22-OH5]                                               (1)         [F12,F44,F01-OS1.1]
                                                                                                    (5)          [F81,F43-OS1.1]                                                     [F12,F44-OH5]
                                                                                                                 [F81,F43-OP1.1]                                                     [F12,F44,F01-OP1.1]
                                                                                                                 [F81,F43-OH5]                                           4.6.8.4. Card- or Key-Activated Dispensers
                                                                                                    (6)          [F43,F01-OP1.1] Applies where dispensing is from a      (3)         [F34-OH5]
                                                                                                                 floating structure.
                                                                                                                                                                                     [F34-OS1.1]
                                                                                                                 [F43-OH5] Applies where dispensing is from a floating
                                                                                                                                                                                     [F34-OP1.1]
                                                                                                                 structure.
                                                                                                                 [F43,F01-OS1.1] Applies where dispensing is from a
                                                                                                                 floating structure.



                                                                                                    4-88 Division B                                                                                      National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                    4.13.1.1.

                                                                                                                       Table 4.13.1.1. (Continued)                                             Table 4.13.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)            Provision             Functional Statements and Objectives (1)
                                                                                                     (4)         [F81-OS1.1]                                                 (4)         (c) [F44-OS1.1] Applies to the requirement to immediately
                                                                                                                                                                                         apply an absorbent material.
                                                                                                                 [F81-OH5]
                                                                                                                                                                                         (c) [F44-OH5] Applies to the requirement to immediately
                                                                                                                 [F81-OP1.1]
                                                                                                                                                                                         apply an absorbent material.
                                                                                                     (5)         [F13-OS1.1,OS1.2]
                                                                                                                                                                                         (d) [F01-OS1.1]
                                                                                                                 [F13-OH5]
                                                                                                                                                                                         (a),(b),(e) [F43-OS1.1]
                                                                                                                 [F13-OP1.1,OP1.2]
                                                                                                                                                                                         (c) [F44-OP1.1] Applies to the requirement to immediately




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                     (6)         (a) [F12-OS1.1,OS1.2] Applies to the requirement that                   apply an absorbent material.
                                                                                                                 the emergency instructions be conspicuously posted to
                                                                                                                                                                                         (a),(b),(e) [F43-OH5]
                                                                                                                 advise the user, in the event of a spill or accident.
                                                                                                                                                                                         (f) [F01,F44-OS1.1]
                                                                                                                 (b) [F13-OH5]
                                                                                                                                                                             4.6.8.7. Sources of Ignition
                                                                                                                 (b) [F13-OP1.1,OP1.2]
                                                                                                                 (a) [F12-OP1.1,OP1.2] Applies to the requirement that       (1)         [F01-OS1.1]
                                                                                                                 the emergency instructions be conspicuously posted to       4.6.8.8. Signs
                                                                                                                 advise the user, in the event of a spill or accident.
                                                                                                                                                                             (1)         [F01-OS1.1] Applies to portion of Code text: “At least
                                                                                                                 (a) [F12-OH5] Applies to the requirement that the                       one … sign … shall be provided for each dispenser in a
                                                                                                                 emergency instructions be conspicuously posted to                       location visible to every driver approaching the dispenser.”
                                                                                                                 advise the user, in the event of a spill or accident.
                                                                                                                                                                                         [F80-OS1.1] Applies to the portion of Code text: “At least
                                                                                                                 (b) [F13-OS1.1,OS1.2]                                                   one weather-resistant sign …”
                                                                                                     4.6.8.5. Duties of Attendants                                           (2)         [F01-OS1.1]
                                                                                                     (1)         (d) [F01-OS1.1]                                             (3)         [F01-OS1.1]
                                                                                                                 (e) [F01-OS1.1]                                             (4)         [F01-OS1.1]
                                                                                                                 (a),(b),(c) [F44-OP1.1,OP1.2]                               4.6.9.1. Portable Extinguishers
                                                                                                                 (f) [F44-OS1.1,OS1.2]                                       (1)         [F12,F02-OP1.2]
                                                                                                                 (a),(b),(c) [F44-OS1.1,OS1.2]                                           [F12,F02-OS1.2]
                                                                                                                 (e) [F01-OP1.1]                                             4.7.2.2. Storage Tanks
                                                                                                                 (a),(b),(c) [F44-OH5]                                       (1)         [F03-OP1.2]
                                                                                                                 (f) [F44-OP1.1,OP1.2]                                                   [F22,F21,F81-OH5]
                                                                                                                 (f) [F44-OH5]                                                           [F03-OP3.1]
                                                                                                                 (c) [F01,F44-OS1.1] Applies to containers that are                      [F22,F21,F81-OS1.1] [F03-OS1.2]
                                                                                                                 located in a vehicle.
                                                                                                                                                                             4.7.2.3. Hydraulic Pressure Shock
                                                                                                     (2)         (b) [F43-OS1.1] Applies to containers not being filled
                                                                                                                 beyond their safe filling level.                            (1)         [F20,F82-OH5]

                                                                                                                 (a) [F44,F01-OS1.1]                                                     [F20,F82-OP1.1]
                                                                                                                 (b) [F44,F01-OS1.1] Applies to containers being filled                  [F20,F82-OS1.1]
                                                                                                                 only after having been removed from the floatplane or
                                                                                                                                                                             4.7.3.1. Interconnection
                                                                                                                 watercraft.
                                                                                                                 (b) [F43-OH5] Applies to containers not being filled        (1)         [F01-OS1.1]
                                                                                                                 beyond their safe filling level.                            4.7.3.2. Dispensing into Vehicles
                                                                                                                 (b) [F44-OS1.1] Applies to the removal of containers from   (1)         [F34-OS1.1]
                                                                                                                 watercraft or floatplanes.
                                                                                                                                                                                         [F34-OH5]
                                                                                                     (3)         [F12-OS1.1,OS1.2]
                                                                                                                                                                             (2)         (a) [F81,F43-OS1.1]
                                                                                                     4.6.8.6. Fuel-Dispensing Procedures
                                                                                                                                                                                         (a) [F81,F43-OP1.1]
                                                                                                     (1)         [F01-OS1.1]
                                                                                                                                                                                         (a) [F81,F43-OH5]
                                                                                                     (2)         [F01-OS1.1]
                                                                                                                                                                             4.7.4.1. Clearances
                                                                                                     (3)         [F01,F43,F44,F81-OS1.1]
                                                                                                                                                                             (1)         [F01-OS1.1] [F03-OS1.2]
                                                                                                                                                                                         [F01,F03-OP3.1]
                                                                                                                                                                                         [F03-OP1.2]



                                                                                                    National Fire Code of Canada 2020                                                                                              Division B 4-89
                                                                                                    4.13.1.1.                                                                                                               Division B

                                                                                                                       Table 4.13.1.1. (Continued)                                             Table 4.13.1.1. (Continued)

                                                                                                     Provision              Functional Statements and Objectives (1)        Provision            Functional Statements and Objectives (1)
                                                                                                    (2)          [F03-OP1.2]                                                (2)         [F04,F43,F20-OS1.1]
                                                                                                                 [F22,F21,F81-OS1.1] [F03-OS1.2]                                        [F04,F20,F43-OH5]
                                                                                                                 [F03-OP3.1]                                                (3)         [F20,F43,F04-OS1.1]
                                                                                                                 [F21,F22,F81-OH5]                                                      [F20,F43,F04-OH5]
                                                                                                    4.7.4.2. Multi-purpose Facilities                                       4.8.4.2. Pipe Supports
                                                                                                    (1)          [F01-OS1.1]                                                (1)         [F20,F22-OS1.1]




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                                                                                                    4.7.4.3. Check Valves                                                               [F20,F22-OH5]
                                                                                                    (1)          [F43-OH5]                                                              [F20,F22-OP1.1]
                                                                                                                 [F43-OS1.1]                                                (2)         [F02-OS1.2]
                                                                                                    (2)          [F43,F82-OS1.1]                                                        [F02-OP1.2]
                                                                                                                 [F43,F82-OH5]                                                          [F02-OH5]
                                                                                                    4.7.4.4. Control Valves                                                 (3)         [F04-OS1.2]
                                                                                                    (1)          [F43-OH5]                                                              [F04-OH5]
                                                                                                                 [F43-OS1.1]                                                            [F04-OP1.2]
                                                                                                    (2)          [F43,F81-OS1.1]                                            4.8.4.3. Guards
                                                                                                                 [F43,F81-OH5]                                              (1)         [F81-OS1.1]
                                                                                                    4.7.4.5. Bonding and Grounding                                                      [F81-OP1.1]
                                                                                                    (1)          [F01-OS1.1]                                                            [F81-OH5]
                                                                                                    (2)          [F01-OS1.1]                                                4.8.4.4. Flexible Connections
                                                                                                    (3)          [F01-OS1.1]                                                (1)         [F21-OS1.1]
                                                                                                    (4)          [F01-OS1.1]                                                            [F21-OP1.1]
                                                                                                    (5)          [F01-OS1.1]                                                            [F21-OH5]
                                                                                                    4.7.4.6. Downspouts                                                     4.8.4.5. Shut-off Valves
                                                                                                    (1)          [F01-OS1.1]                                                (1)         [F12,F44-OS1.1,OS1.2]
                                                                                                    4.7.5.1. Portable Extinguishers                                                     [F12,F44-OP1.1,OP1.2]
                                                                                                    (1)          [F02,F12-OS1.2]                                                        [F12,F44-OH5]
                                                                                                                 [F02,F12-OP1.2]                                            4.8.4.6. Access Openings for Inspection
                                                                                                    4.8.2.1. Clearances                                                     (1)         [F12-OS1.2,OS1.1] [F82-OS1.1]
                                                                                                    (1)          [F03-OP3.1]                                                            [F12-OP1.1,OP1.2] [F82-OP1.1]
                                                                                                                 [F03-OS1.2]                                                            [F12,F82-OH5]
                                                                                                    (2)          [F03-OS1.2]                                                (2)         [F12-OS1.1,OS1.2] [F82-OS1.1]
                                                                                                                 [F03-OP3.1]                                                            [F12-OP1.1,OP1.2] [F82-OP1.1]
                                                                                                    4.8.2.2. Construction                                                               [F12,F82-OH5]
                                                                                                    (1)          [F20,F04,F80-OH5]                                          4.8.4.7. Identification
                                                                                                                 [F20,F04,F80-OS1.1]                                        (1)         [F81-OS1.1] [F12-OS1.2,OS1.1]
                                                                                                                 [F20,F04,F80-OP1.1]                                                    [F81-OP1.1] [F12-OP1.1,OP1.2]
                                                                                                    4.8.3.1. Installation                                                               [F12-OH5]
                                                                                                    (1)          [F04,F20-OS1.1] Applies to portion of Code text: “Except   4.8.4.8. Leakage Testing
                                                                                                                 as permitted in Sentences (2) and (3), storage tanks       (2)         [F82-OS1.1]
                                                                                                                 shall be installed on shore …”
                                                                                                                                                                                        [F82-OP1.1]
                                                                                                                 [F04,F20-OH5] Applies to portion of Code text: “Except
                                                                                                                 as permitted in Sentences (2) and (3), storage tanks                   [F82-OH5]
                                                                                                                 shall be installed on shore …”                             4.8.5.1. Bonding and Grounding
                                                                                                                                                                            (1)         [F01-OS1.1]



                                                                                                    4-90 Division B                                                                                         National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                   4.13.1.1.

                                                                                                                         Table 4.13.1.1. (Continued)                                             Table 4.13.1.1. (Continued)

                                                                                                     Provision            Functional Statements and Objectives (1)           Provision            Functional Statements and Objectives (1)
                                                                                                     (2)         [F01-OS1.1]                                                 (3)         [F81-OH5]
                                                                                                     4.8.6.1. Portable Extinguishers                                                     [F81-OP1.1]
                                                                                                     (1)         [F12,F02-OS1.2] Applies to the requirement for portable                 [F81-OS1.1]
                                                                                                                 extinguishers with a rated capacity.                        4.8.8.1. Cargo Hose
                                                                                                                 [F12,F02-OP1.2] Applies to the requirement for portable
                                                                                                                                                                             (1)         [F81,F20,F22-OS1.1]
                                                                                                                 extinguishers with a rated capacity.
                                                                                                                                                                                         [F81,F20,F22-OP1.1]
                                                                                                     (2)         [F12-OS1.2] Applies to the placement and accessibility




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                                                                                                                 of portable extinguishers.                                              [F81,F20,F22-OH5]
                                                                                                                 [F34-OS1.2] Applies to the placement of portable            4.8.8.2. Maintenance and Testing
                                                                                                                 extinguishers so they are not accessible to the public.     (1)         [F82-OS1.1]
                                                                                                                 [F12-OP1.2] Applies to the placement and accessibility                  [F82-OP1.1]
                                                                                                                 of portable extinguishers.
                                                                                                                                                                                         [F82-OH5]
                                                                                                                 [F34-OP1.2] Applies to the placement of portable
                                                                                                                 extinguishers so they are not accessible to the public.     4.8.8.3. Supports
                                                                                                     (3)         [F12,F02-OS1.2]                                             (1)         [F20,F22-OS1.1]
                                                                                                                 [F12,F02-OP1.2]                                                         [F20,F22-OP1.1]
                                                                                                     4.8.6.2. Training                                                                   [F20,F22-OH5]
                                                                                                     (1)         [F12,F13-OS1.2]                                             4.8.9.1. Pressure Relief
                                                                                                                 [F12,F13-OP1.2]                                             (1)         [F20,F81-OS1.1]
                                                                                                     4.8.7.1. Location                                                                   [F20,F81-OP1.1]
                                                                                                     (1)         [F01,F81-OS1.1]                                                         [F20,F81-OH5]
                                                                                                                 [F01,F81-OP1.1]                                             4.8.9.2. Location
                                                                                                                 [F01,F81-OH5]                                               (1)         (b) [F01,F03-OS1.1,OS1.2]
                                                                                                     (2)         [F34-OS1.1]                                                             (a) [F02-OP1.2]
                                                                                                                 [F34-OP1.1]                                                             (a) [F02-OS1.2]
                                                                                                                 [F34-OH5]                                                               (b) [F03,F01-OP3.1]
                                                                                                     4.8.7.2. Leakage and Spill Control                                      (2)         [F44,F02,F03,F01-OS1.1,OS1.2]
                                                                                                     (2)         [F43-OS1.1]                                                             [F44,F02,F03-OP3.1]
                                                                                                                 [F43-OH5]                                                   4.8.10.1. Construction
                                                                                                     4.8.7.3. Hose Connections                                               (1)         [F02-OS1.2] Applies to portion of Code text: “Pump
                                                                                                                                                                                         houses shall be of noncombustible construction …”
                                                                                                     (1)         [F22,F43-OS1.1] Applies to portion of Code text: “Except
                                                                                                                 as provided in Sentence (2), hose connections on piping                 [F02-OP3.1] Applies to portion of Code text: “Pump
                                                                                                                 shall be of the bolted flange type …”                                   houses shall be of noncombustible construction …”
                                                                                                                 [F22,F43-OP1.1] Applies to portion of Code text: “Except                [F44-OP3.1] Applies to the construction of the floors.
                                                                                                                 as provided in Sentence (2), hose connections on piping                 [F44-OH5] Applies to the construction of the floors.
                                                                                                                 shall be of the bolted flange type …”
                                                                                                                                                                                         [F44-OS1.1] Applies to the construction of the floors.
                                                                                                                 [F44-OP1.1,OP1.2] Applies to the requirement for shut-off
                                                                                                                 valves.                                                     4.8.11.1. Supervision
                                                                                                                 [F44-OH5] Applies to the requirement for shut-off valves.   (1)         [F44,F12,F43,F01-OS1.1,OS1.2]
                                                                                                                 [F22,F43-OH5] Applies to portion of Code text: “Except                  [F44,F43,F12-OH5]
                                                                                                                 as provided in Sentence (2), hose connections on piping                 [F44,F12-OP1.1,OP1.2]
                                                                                                                 shall be of the bolted flange type …”
                                                                                                                                                                             (2)         [F43,F44,F12-OS1.1]
                                                                                                                 [F44-OS1.1,OS1.2] Applies to the requirement for shut-off
                                                                                                                 valves.                                                                 [F43,F44,F12-OP1.1]
                                                                                                     (2)         [F22,F43-OS1.1]                                                         [F43,F44,F12-OH5]
                                                                                                                 [F22,F43-OP1.1]
                                                                                                                 [F22,F43-OH5]




                                                                                                    National Fire Code of Canada 2020                                                                                             Division B 4-91
                                                                                                    4.13.1.1.                                                                                                                  Division B

                                                                                                                        Table 4.13.1.1. (Continued)                                            Table 4.13.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)            Provision              Functional Statements and Objectives (1)
                                                                                                    (3)          (c) [F44-OH5] Applies to portion of Code text: “… if        4.9.3.3. Basements and Pits
                                                                                                                 leakage occurs, stop the operations.”
                                                                                                                                                                             (1)         [F01-OS1.1]
                                                                                                                 (a) [F01-OS1.1]
                                                                                                                                                                             4.9.3.4. Ventilation
                                                                                                                 (b) [F43-OS1.1]
                                                                                                                                                                             (1)         [F01-OS1.1]
                                                                                                                 (c) [F43-OS1.1] Applies to portion of Code text: “…
                                                                                                                 inspect the hose and connections for leakage …”             4.9.4.1. Spill and Vapour Control
                                                                                                                 (b) [F43-OH5]                                               (1)         (a) [F43,F01-OS1.1]




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                                                                                                                 (c) [F43-OH5] Applies to portion of Code text: “… inspect
                                                                                                                                                                                         (b) [F44-OH5]
                                                                                                                 the hose and connections for leakage …”
                                                                                                                                                                                         (b) [F44-OP1.1]
                                                                                                                 (c) [F44-OS1.1] Applies to portion of Code text: “… if
                                                                                                                 leakage occurs, stop the operations.”                                   (a) [F43-OH5]
                                                                                                                 (c) [F44-OP1.1] Applies to portion of Code text: “… if                  (b) [F44-OS1.1]
                                                                                                                 leakage occurs, stop the operations.”                       4.9.4.2. Explosion Protection
                                                                                                    4.8.11.2. Bonding and Grounding
                                                                                                                                                                             (1)         [F01-OS1.1] [F02-OS1.3]
                                                                                                    (1)          [F01-OS1.1]                                                             (a),(b) [F02-OS1.2]
                                                                                                    (2)          [F01-OS1.1]                                                             (a),(b) [F02-OP1.3]
                                                                                                    4.8.11.3. Equipment                                                                  [F02-OP1.3]
                                                                                                    (1)          [F21-OS1.1]                                                             (c) [F01-OS1.1]
                                                                                                                 [F21-OP1.1]                                                 4.9.4.3. Fire Protection
                                                                                                                 [F21-OH5]                                                   (3)         [F03,F12-OS1.2]
                                                                                                    (2)          [F43-OS1.1]                                                             [F03,F12-OP1.2]
                                                                                                                 [F43-OH5]                                                   4.10.3.1. Design, Fabrication and Testing
                                                                                                                 [F43-OP1.1]
                                                                                                                                                                             (1)         [F20,F80,F43-OH5]
                                                                                                    (3)          [F43-OS1.1]
                                                                                                                                                                                         [F20,F80,F43,F01-OS1.1]
                                                                                                                 [F43-OH5]
                                                                                                                                                                             4.10.3.2. Supports, Foundations and Anchorage
                                                                                                                 [F43-OP1.1]
                                                                                                                                                                             (1)         [F02,F04-OS1.2] Applies to the use of timber supports.
                                                                                                    (4)          [F44-OS1.1]
                                                                                                                                                                             (2)         [F02-OS1.2] Applies to supports having less than a 2 h
                                                                                                                 [F44-OH5]                                                               fire-resistance rating being protected by an automatic fire
                                                                                                                 [F44-OP1.1]                                                             suppression system.

                                                                                                    4.8.11.4. Spill Control                                                  (3)         [F02-OS1.2] Applies to the protection of the area
                                                                                                                                                                                         underneath any storage tank that is greater than 1.2 m
                                                                                                    (1)          [F43-OS1.1]                                                             in diameter.
                                                                                                                 [F43-OH5]                                                   4.10.3.3. Storage Tank Vents
                                                                                                    (2)          [F43-OS1.1]                                                 (1)         [F81,F20,F04,F01-OS1.1]
                                                                                                                 [F43-OH5]                                                               [F81,F20,F04-OH5]
                                                                                                    4.9.2.1. Location                                                        4.10.4.1. Storage Tanks, Drums and Barrels
                                                                                                    (2)          [F03-OS1.2]                                                 (1)         [F02-OS1.2]
                                                                                                                 [F03-OP3.1]                                                             [F02-OP1.2]
                                                                                                    (3)          [F03-OS1.2]                                                 4.10.5.1. Design and Installation
                                                                                                                 [F03-OP3.1]                                                 (1)         [F20,F80-OS1.1]
                                                                                                    (4)          [F03-OS1.2]                                                             [F20,F80-OH5]
                                                                                                                 [F03-OP3.1]                                                             [F20,F80-OP1.1]
                                                                                                    4.9.3.1. Explosion Venting                                               4.10.6.1. Ventilation
                                                                                                    (1)          [F02-OS1.3]                                                 (1)         [F01-OS1.1]
                                                                                                                 [F02-OP1.3]
                                                                                                                 [F02-OP3.1]



                                                                                                    4-92 Division B                                                                                           National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                            4.13.1.1.

                                                                                                                       Table 4.13.1.1. (Continued)                                        Table 4.13.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)     Provision             Functional Statements and Objectives (1)
                                                                                                     4.10.7.1. Spill Control                                         4.11.3.6. Engine
                                                                                                     (1)         [F44-OS1.1,OS1.2]                                   (1)            [F01-OS1.1]
                                                                                                                 [F44-OH5]                                           4.11.3.7. Unloading
                                                                                                     4.10.8.1. Portable Extinguishers                                (1)            [F43-OS1.1]
                                                                                                     (1)         [F12,F02-OS1.2]                                                    [F43-OH5]
                                                                                                                 [F12,F02-OP1.2]                                     (2)            [F81,F20,F43-OS1.1]




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                                                                                                     (2)         [F12,F02-OS1.2]                                                    [F81,F20,F43-OH5]
                                                                                                                 [F12,F02-OP1.2]                                     (3)            [F81,F01,F02-OS1.1]
                                                                                                     (3)         [F12,F02-OS1.2]                                     4.11.3.8. Dispensing into Vehicles
                                                                                                                 [F12,F02-OP1.2]                                     (1)            [F01,F43-OS1.1]
                                                                                                     4.10.8.2. Standpipe and Hose Systems                                           [F43,F01-OP1.1]
                                                                                                     (1)         [F12,F02-OS1.2]                                                    [F43-OH5]
                                                                                                                 [F12,F02-OP1.2]                                     (2)            (a) [F01-OS1.1]
                                                                                                     (2)         [F02-OS1.2]                                                        (a) [F03-OS1.2]
                                                                                                                 [F02-OP1.2]                                                        (a) [F01,F03-OP3.1]
                                                                                                     4.11.2.1. Portable Extinguishers                                               (b) [F02,F12-OS1.2]
                                                                                                     (1)         [F02,F12-OS1.1]                                                    (d) [F43,F44-OS1.1]
                                                                                                                 [F02,F12-OP1.2]                                                    (e) [F44-OS1.1]
                                                                                                     (2)         [F12-OS1.2]                                                        (e) [F44-OH5]
                                                                                                                 [F12-OP1.2]                                         4.12.1.2. Containers and Tanks
                                                                                                     4.11.2.3. Parking inside Buildings                              (1)            [F01-OS1.1]
                                                                                                     (1)         (a) [F01,F44-OS1.1]                                 (2)            [F02-OS1.1] [F03-OS1.2]
                                                                                                                 (a) [F02,F03-OS1.2]                                 (3)            [F03-OS1.2]
                                                                                                                 (a) [F01,F44-OP1.1]                                 4.12.1.3. Pesticide Storage Areas
                                                                                                                 (a) [F02,F03-OP1.2]
                                                                                                                                                                     (1)            [F31,F34-OS3.4]
                                                                                                                 (a) [F44-OH5]
                                                                                                                 (b) [F43,F01-OS1.1]                                Notes to Table 4.13.1.1.:
                                                                                                                 (c) [F43,F01-OS1.1]                                (1)    See Parts 2 and 3 of Division A.
                                                                                                     4.11.2.4. Parking outside Buildings
                                                                                                     (1)         [F81,F34-OS1.1] [F02-OS1.2]
                                                                                                                 [F02-OP3.1]
                                                                                                     (2)         [F81-OS1.1] [F03-OS1.2]
                                                                                                                 [F81,F03-OP3.1]
                                                                                                     4.11.3.2. Ignition Sources
                                                                                                     (1)         [F01-OS1.1]
                                                                                                                 [F20,F81-OS1.1]
                                                                                                     4.11.3.3. Static Electric Charges
                                                                                                     (1)         [F01-OS1.1]
                                                                                                     4.11.3.4. Supervision
                                                                                                     (1)         [F44-OS1.1,OS1.2]
                                                                                                                 [F44-OH5]
                                                                                                                 [F44-OP1.1,OP1.2]
                                                                                                     4.11.3.5. Multi-use Compartments
                                                                                                     (1)         [F01-OS1.1]


                                                                                                    National Fire Code of Canada 2020                                                                                      Division B 4-93
                                    Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays




4-94 Division B




National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Notes to Part 4
                                                                                                    Flammable and Combustible Liquids




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                                                                                                    A-4.1.1.1.(1) The all-inclusive phrase “buildings, structures and open areas” includes, but is not limited to,
                                                                                                    tank farms, bulk plants, fuel-dispensing stations, industrial plants, refineries, process plants, distilleries, and to
                                                                                                    piers, wharves and airports that are not subject to overriding federal control.
                                                                                                    Part 4 applies wherever flammable or combustible liquids are used or stored, except as specifically exempted
                                                                                                    in Sentences 4.1.1.1.(2) and (3). In addition, Section 4.6. applies to dangerous goods classified as flammable
                                                                                                    gases at fuel-dispensing stations.
                                                                                                    Part 4 contains both general and occupancy-specific provisions. While general provisions apply to all
                                                                                                    occupancies or operations identified within the scope of Subsection 4.1.1., occupancy-specific provisions apply
                                                                                                    only to the specific occupancy or operation stated.
                                                                                                    To determine the provisions that apply to a given situation, the first step is to confirm which Section or
                                                                                                    Subsection corresponds to the operation or occupancy: this will help identify the occupancy-specific provisions
                                                                                                    that apply. The next step is to ensure that all general requirements that apply to the operation or occupancy
                                                                                                    are also identified.

                                                                                                    A-4.1.1.1.(2) Certain areas in refineries, chemical plants and distilleries will not meet all Code requirements
                                                                                                    because of extraordinary conditions. Design should be based on good engineering practice and on such factors
                                                                                                    as manual fire suppression equipment, daily inspections, automated transfer systems, location of processing
                                                                                                    units, and special containment systems, piping, controls and materials used. NFPA 30, “Flammable and
                                                                                                    Combustible Liquids Code,” and NFPA 36, “Standard for Solvent Extraction Plants,” are examples of good
                                                                                                    engineering practice and can be referred to by the designer and the authority having jurisdiction.

                                                                                                    A-4.1.1.1.(3)(b) Ancillary equipment covered in CSA B139 Series, “Installation code for oil-burning
                                                                                                    equipment,” includes storage tanks and piping that supply oil-burning equipment, diesel-engine-driven
                                                                                                    emergency generators and fire pumps. Part 4 of the NFC does not apply to such tanks and piping systems.

                                                                                                    A-4.1.2.1. The classification system for flammable liquids used by TC SOR/2001-286, “Transportation of
                                                                                                    Dangerous Goods Regulations (TDGR),” differs from the NFPA classification system used in the NFC. In the
                                                                                                    NFC, only liquids with a flash point below 37.8°C are referred to as “flammable liquids,” whereas liquids
                                                                                                    having a flash point at or above 37.8°C are “combustible liquids.” The TDGR do not include Class IIIA liquids,
                                                                                                    which have a flash point above 60°C.
                                                                                                    For the purpose of comparing the TDGR classification system with the NFC system, the difference between
                                                                                                    60.5°C (TDGR) and 60°C (NFC) may be ignored. The results of closed-cup flash point tests may vary by as
                                                                                                    much as 1°C, so nothing is gained by unnecessary precision.

                                                                                                    A-4.1.2.1.(3)(b) The NFPA classification system for flammable and combustible liquids includes Class IIIB
                                                                                                    liquids, which have flash points at or above 93.3°C. These liquids are not regulated by Part 4 of the NFC
                                                                                                    because they are deemed to represent no greater fire hazard than other combustibles, such as wood or paper
                                                                                                    products. However, Article 4.1.2.3. clarifies that such liquids are effectively Class I liquids when heated to
                                                                                                    their flash point temperature.

                                                                                                    These Notes are included for explanatory purposes only and do not form part of the requirements. The number
                                                                                                    that introduces each Note corresponds to the applicable requirement in this Part.


                                                                                                    National Fire Code of Canada 2020                                                                             Division B 4-95
                                                                                                    A-4.1.2.2.                                                                                                    Division B

                                                                                                    A-4.1.2.2. According to research and test results, mixtures containing less than 20% by volume methanol,
                                                                                                    ethanol or 2-propanol, less than 5% by volume acetone, or less than 8% by volume acetic acid in water are
                                                                                                    unlikely to present a fire hazard. While these water-miscible liquid mixtures still have flash points, they may
                                                                                                    not be able to develop sustained burning because of the presence of water in the mixtures. Therefore, these
                                                                                                    mixtures are not classified as flammable or combustible liquids. They may, however, be classified as dangerous
                                                                                                    goods to which the requirements of Part 3 would apply.
                                                                                                    The flash points and fire points of water-miscible liquid mixtures depend on the concentration of the
                                                                                                    water-miscible liquid. The classifications noted in Article 4.1.2.2. for mixtures of methanol, ethanol, 2-propanol,
                                                                                                    acetone or acetic acid and water, which are summarized in Table A-4.1.2.2., take into account the flash points
                                                                                                    and fire points of the mixtures at various concentrations of the water-miscible liquid, as well as their unique
                                                                                                    fire and chemical properties.




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                                                                                                                                                               Table A-4.1.2.2.
                                                                                                                                      Classification of Mixtures of a Water-Miscible Liquid and Water
                                                                                                                                                       Forming Part of Note A-4.1.2.2.

                                                                                                     Volume Concentration of the Water-Miscible                                     Classification
                                                                                                                    Liquid, %                            Class IB                     Class IC                      Class II
                                                                                                    Methanol
                                                                                                        ≥ 90                                                                             —                            —
                                                                                                        ≥ 30 and < 90                                       —                                                         —
                                                                                                        ≥ 20 and < 30                                       —                            —
                                                                                                    Ethanol
                                                                                                        ≥ 90                                                                             —                            —
                                                                                                        ≥ 30 and < 90                                       —                                                         —
                                                                                                        ≥ 20 and < 30                                       —                            —
                                                                                                    2-Propanol
                                                                                                        ≥ 20                                                —                                                         —
                                                                                                    Acetone
                                                                                                        ≥5                                                                               —                            —
                                                                                                    Acetic acid
                                                                                                        ≥8                                                                               —                            —


                                                                                                    It is impractical for every type and concentration of water-miscible liquid mixture to be classified in the Code.
                                                                                                    The classification of a mixture not covered in Article 4.1.2.2. can be determined by measuring its fire point
                                                                                                    using the open-cup test described in ASTM D92, “Standard Test Method for Flash and Fire Points by Cleveland
                                                                                                    Open Cup Tester,” and then classifying it in accordance with Sentences 4.1.2.1.(2) and (3) by treating the
                                                                                                    measured fire point as the flash point of the mixture. This procedure should also be followed to determine the
                                                                                                    classification of a mixture containing multiple water-miscible liquids and water, as the flash point and fire point
                                                                                                    of the mixture are likely to differ from those of each water-miscible liquid in water. (Note that closed-cup tests
                                                                                                    are used to determine the flash points of pure liquids.)

                                                                                                    A-4.1.2.4. Used automotive lubricating oil may contain both oil and more volatile Class I liquids, such as
                                                                                                    gasoline. Tests of representative samples have demonstrated that the flash point of such used oil consistently
                                                                                                    exceeds 60°C, with an average above 93.3°C. When Class I or II liquids are added to such used oil, the flash
                                                                                                    point of the resulting mixture will vary with the percentage and flammability of the contaminating liquid and
                                                                                                    shall be determined by tests.

                                                                                                    A-4.1.3.1. The kinematic viscosity of a liquid influences the choice of test most appropriate for measuring its
                                                                                                    flash point. In the ASTM standards, kinematic viscosity is measured in stokes (St) or centistokes (cSt).
                                                                                                    For purposes of comparison, the kinematic viscosity of water is 1.0038 cSt at 20°C; of glycerine (100%),
                                                                                                    approximately 648 cSt at 20°C; and of some common motor oils, near 1 295 cSt at –18°C. Some paints, lacquers
                                                                                                    and glues have much higher kinematic viscosities, as indicated by the upper limit of 150 St in ASTM D3278,
                                                                                                    “Standard Test Methods for Flash Point of Liquids by Small Scale Closed-Cup Apparatus.”
                                                                                                    A substance should be treated as a liquid if it has a fluidity greater than that of 300 penetration asphalt, when
                                                                                                    tested in accordance with ASTM D5/D5M, “Standard Test Method for Penetration of Bituminous Materials.” A


                                                                                                    4-96 Division B                                                                                  National Fire Code of Canada 2020
                                                                                                    Division B                                                                                     A-4.1.6.1.(1)

                                                                                                    viscous substance for which a specific melting point cannot be determined, but that is designated as a liquid
                                                                                                    in accordance with ASTM D4359, “Standard Test Method for Determining Whether a Material Is a Liquid
                                                                                                    or a Solid,” should also be considered as a liquid.

                                                                                                    A-4.1.4.1.(1) Additional information on determining the extent of Division 1 or 2 zones in Class I locations
                                                                                                    can be found in the following documents:
                                                                                                      • CSA PLUS 2203, “Hazardous Locations: A Guide for the Design, Testing, Construction, and Installation of
                                                                                                         Equipment in Explosive Atmospheres,”
                                                                                                      • NFPA 30, “Flammable and Combustible Liquids Code,” and
                                                                                                      • NFPA 497, “Recommended Practice for the Classification of Flammable Liquids, Gases, or Vapors and of
                                                                                                         Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas.”




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                                                                                                    A-4.1.5.2.(1) Sources of ignition include, but are not limited to, open flames, smoking, cutting and welding,
                                                                                                    hot surfaces, frictional heat, static, electrical and mechanical sparks, spontaneous ignition, heat-producing
                                                                                                    chemical reactions, and radiant heat.

                                                                                                    A-4.1.5.8. Limited quantities of Class I liquids are permitted to be stored or used in basements where it
                                                                                                    is clear they will not create a fire hazard. Such factors as the size of the basement, ventilation, wiring, and
                                                                                                    proximity to sources of ignition should be taken into account in determining whether an unsafe condition exists.

                                                                                                    A-4.1.6.1.(1) A spill containment system is intended to capture the maximum credible spill of a flammable
                                                                                                    or combustible liquid. This can be achieved by safely containing the liquid or having it drain to a safe location.
                                                                                                    Water used for firefighting need not be taken into consideration when determining the capacity of the primary
                                                                                                    spill containment or drainage system required by Sentence 4.1.6.1.(1).
                                                                                                    Once a fire is associated with a spill, water from hose streams, suppression systems, etc. used for firefighting
                                                                                                    becomes a concern. The quantity of water involved is highly variable as it will depend on the fire conditions
                                                                                                    and the duration of the fire. As a result, the fire safety plan must address spill management associated with the
                                                                                                    application of water during firefighting operations.

                                                                                                        Estimating credible spill capacity

                                                                                                        The capacity of a credible spill must be based on the maximum quantity that can be released from
                                                                                                        containers located in the storage area.
                                                                                                          • Where the storage—inside and/or outside—is in drums or small containers (not large vessels,
                                                                                                             Intermediate Bulk Containers (IBC), tote bins or tanks), the capacity of a credible spill should be at
                                                                                                             least 1 000 L. This will accommodate a spill in the event that lift truck forks spear a single pallet load
                                                                                                             containing four drums or drop the load. Where drums are not handled on pallets and hand trucks or
                                                                                                             clamp-type lift trucks are used, the capacity of credible spill may be reduced, but not to less than the
                                                                                                             capacity of the largest container used.
                                                                                                          • For storage in IBC, tote bins or other bulk containers inside or outside buildings, and in tanks inside
                                                                                                             buildings, the credible spill capacity must be at least equal to the capacity of the largest container in
                                                                                                             the storage area.
                                                                                                          • Outside storage tanks must comply with the provisions of Subsection 4.3.7.

                                                                                                        Consideration for the fire safety plan

                                                                                                        The fire safety plan must ensure that all critical areas, such as buildings, means of egress, fire department
                                                                                                        access, control valves, fire alarm panels, etc., in the path of a potential overflow remain accessible during the
                                                                                                        fire emergency and that the flow of liquid is directed away from such areas. The plan must allow for reliable
                                                                                                        and immediate notification of an emergency, such as by providing an automatic notification system, which
                                                                                                        will facilitate early intervention by the fire department. The plan must incorporate measures, including
                                                                                                        design features, that will minimize the impact of effluent on adjoining property and the environment.
                                                                                                        The owner of the building is responsible for developing the fire safety plan. The owner may require
                                                                                                        assistance from the fire department, which can provide some of the relevant information necessary to
                                                                                                        develop a workable plan. The owner is also responsible for having the plan approved by the chief fire
                                                                                                        official and for ensuring the approved plan is implemented. Periodic (e.g. annual) testing of the plan would
                                                                                                        help identify any limitations of the plan and familiarize staff who have been assigned duties in the plan.
                                                                                                        The fire safety plan must be modified when original assumptions and conditions change.


                                                                                                    National Fire Code of Canada 2020                                                                     Division B 4-97
                                                                                                    A-4.1.6.2.(2)                                                                                    Division B

                                                                                                        Where small quantities are present

                                                                                                           • Where only small quantities (up to 5 000 L) of flammable or combustible liquids are present,
                                                                                                             acceptable measures to control a spill of the liquids and the water used for firefighting include the
                                                                                                             provision of manhole or catch-basin covers, sorbent materials and portable dikes. Such measures can
                                                                                                             prevent contaminated effluents from entering sewers or flowing to other areas.
                                                                                                           • For additional information on controlling a spill, reference should be made to NFPA 30, NFPA
                                                                                                             15, FM Global Data Sheet 7-83, the SFPE, “Handbook of Fire Protection Engineering” and other
                                                                                                             industry-specific publications on the subject.

                                                                                                        Where large quantities are present




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                                                                                                           • Where a facility stores, handles or processes significant quantities (exceeding 5 000 L) of flammable or
                                                                                                             combustible liquids, a high level of expertise may be required to develop an appropriate fire safety
                                                                                                             plan. In such cases, the owner must ensure that professionals who have expertise in this area play
                                                                                                             a lead role in developing and implementing the fire safety plan.
                                                                                                           • Where the application of a fire suppression medium, either manual or automatic, may result in
                                                                                                             significant adverse impact on the community and/or the environment, a controlled burn is an
                                                                                                             option to consider. Evaluating this option should involve key stakeholders such as the owner, fire
                                                                                                             department, provincial and/or federal department responsible for the environment, and insurers.

                                                                                                    A-4.1.6.2.(2) The National Plumbing Code defines a trap as a fitting or device that is designed to hold a
                                                                                                    liquid seal that will prevent the passage of gas but will not materially affect the flow of a liquid.

                                                                                                    A-4.1.6.3.(3)(b) Information on the compatibility and reactivity of liquids can be found in the Safety Data
                                                                                                    Sheets for each liquid.
                                                                                                    An absorbent material conforming to ULC/ORD-C410A, “Absorbents for Flammable and Combustible
                                                                                                    Liquids,” is acceptable.

                                                                                                    A-4.1.7.1.(1) Article 3.3.1.21. of Division B of the NBC specifies that ventilation must be provided in
                                                                                                    conformance with Part 6 of that Code if flammable vapour, gas, or dust could create a fire or explosion hazard.
                                                                                                    However, Part 6 of Division B of the NBC does not provide specific information on the design of ventilation
                                                                                                    systems to prevent an accumulation of dangerous concentrations of flammable vapours. It refers instead
                                                                                                    to “good engineering practice” and directs the user to a number of NFPA standards for examples of good
                                                                                                    practice, which varies according to the nature of the vapours or dusts. Subsection 4.1.7. of the NFC represents a
                                                                                                    minimum level of good practice for preventing the accumulation of explosive concentrations of vapours
                                                                                                    from flammable or combustible liquids.
                                                                                                    In the phrase “rooms or enclosed spaces,” the word “rooms” does not only designate small and confined areas
                                                                                                    of a building; it includes large open areas of a building as well as smaller rooms.

                                                                                                    A-4.1.7.2.(3) Natural ventilation is normally adequate for the storage of flammable liquids and combustible
                                                                                                    liquids, or the dispensing of Class II and IIIA liquids. Such ventilation should consist of permanent openings at
                                                                                                    ceiling and floor levels leading to the outside. At least 0.1 m2 each of free inlet and outlet openings per 50 m2
                                                                                                    of floor area should be provided. A mechanical ventilation rate of at least 18 m3/h per square metre of floor
                                                                                                    area, but not less than 250 m3/h, is normally adequate for rooms with a low floor-to-ceiling height or small
                                                                                                    enclosed spaces where Class I liquids are dispensed. Ventilation for process areas must be designed to suit
                                                                                                    the nature of the hazard in accordance with good engineering practice.

                                                                                                    A-4.1.8.2.(1)(b) Build-up of static electric charges near the surface of liquids being poured into
                                                                                                    non-conducting containers can be controlled or eliminated by: limiting the filling rate to velocities less than
                                                                                                    1 m/s, using a grounded lance or nozzle extension to the bottom of the container, limiting free fall, or using
                                                                                                    antistatic additives.

                                                                                                    A-4.1.8.2.(3)(b) It is generally considered that liquids with a conductivity greater than 50 pS/m (pico
                                                                                                    Siemens per metre) will dissipate static charges so that they will not accumulate to a hazardous potential.
                                                                                                    Experience indicates that most water-miscible liquids, crude oils, residual oils and asphalts do not accumulate
                                                                                                    static charges.


                                                                                                    4-98 Division B                                                                     National Fire Code of Canada 2020
                                                                                                    Division B                                                                                   A-4.2.8.3.(1)

                                                                                                    A-4.1.8.3.(1) Products tested and listed by recognized agencies are considered to be designed in
                                                                                                    conformance with good engineering practice. Underwriters Laboratories Inc., ULC and FM Global are currently
                                                                                                    listing the products as required by Sentence 4.1.8.3.(1).

                                                                                                    A-4.2.2.3.(2) Flammable and combustible liquids are classified as Class 3 flammable liquids in TC
                                                                                                    SOR/2001-286, “Transportation of Dangerous Goods Regulations (TDGR).” Class 3 flammable liquids include
                                                                                                    liquids with flash points up to 60°C using the closed-cup test method or 65.6°C using the open-cup test method.
                                                                                                    This means that Class IIIA liquids with a flash point above 60°C are not usually treated as dangerous goods.
                                                                                                    Flammable and combustible liquids are classified as flammable liquids belonging to Categories 1 to 4 of HC
                                                                                                    SOR/2015-17, “Hazardous Products Regulations.” A Category 1 flammable liquid is any liquid with a flash
                                                                                                    point less than 23°C and an initial boiling point less than or equal to 35°C; a Category 2 flammable liquid is any




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                                                                                                    liquid with a flash point less than 23°C and an initial boiling point greater than 35°C; a Category 3 flammable
                                                                                                    liquid is any liquid with a flash point greater than or equal to 23°C and less than or equal to 60°C; a Category 4
                                                                                                    flammable liquid is any liquid with a flash point greater than 60°C and less than or equal to 93°C when tested in
                                                                                                    accordance with the applicable method specified in Part 7 of HC SOR/2015-17.
                                                                                                    For the purpose of Article 4.2.2.3., Class IIIA and B3 liquids are treated as dangerous goods classified as
                                                                                                    flammable liquids.

                                                                                                    A-4.2.5.4.(1) Article 4.2.5.4. addresses the potential hazard where flammable vapours are released during
                                                                                                    transfer operations in an improperly ventilated area, and where sources of ignition may not be adequately
                                                                                                    controlled.

                                                                                                    A-4.2.7.5.(2) Sentence 4.2.7.5.(2) sets no limit on the total quantity of flammable and combustible
                                                                                                    liquids permitted to be stored in a separate or detached storage building. Although total quantity limits of
                                                                                                    Tables 4.2.7.5.-A and 4.2.7.5.-B do not apply, the quantity and height limitations specified for the individual
                                                                                                    storage areas must be complied with in order to take advantage of the exemption for total quantity limits.
                                                                                                    Requirements pertaining to the spatial separation of buildings are found in Subsection 3.2.3. of Division B of
                                                                                                    the NBC. The requirements in this Code for the storage of flammable and combustible liquids must be read
                                                                                                    in conjunction with applicable provisions in the NBC that impose restrictions on the design of a storage
                                                                                                    building. For example, the size and height of a building, type of construction, automatic fire suppression and
                                                                                                    street access are governed in part by Subsection 3.2.2. of Division B of the NBC. Environmental protection
                                                                                                    regulations may contain additional requirements that should be considered in the design of a storage building
                                                                                                    for flammable and combustible liquids.

                                                                                                    A-4.2.7.6.(1) Options for fixed fire suppression systems for the protection of flammable or combustible
                                                                                                    liquid storage areas include: automatic sprinkler, foam sprinkler, water spray, carbon dioxide, dry chemical
                                                                                                    or halon systems. Examples of good engineering practice for the design of sprinkler or foam water systems
                                                                                                    for flammable and combustible liquid storage areas can be found in NFPA 30, “Flammable and Combustible
                                                                                                    Liquids Code.”

                                                                                                    A-4.2.7.7.(3) Containers of flammable or combustible liquids could be punctured or deformed if pushed
                                                                                                    up against a protrusion from a wall. The required wall clearance is intended to prevent such damage, and to
                                                                                                    permit visual inspection of the sides of the individual storage area. The clearance need not be provided for
                                                                                                    narrow shelves along a wall, where the backs of the shelves can be inspected from the aisle.

                                                                                                    A-4.2.8.1.(1) Subsection 4.2.8. applies to those portions of an industrial occupancy where the use,
                                                                                                    storage and handling of flammable and combustible liquids is only incidental, or secondary to the principal
                                                                                                    activity. The word “incidental” does not imply “small quantity” or “insignificant amount.” Manufacturers of
                                                                                                    electronic equipment, furniture and reinforced plastic boats, and automobile assembly plants are typical
                                                                                                    examples of locations where the use of flammable and combustible liquids is secondary to the principal
                                                                                                    activity of manufacturing consumer products. In storage areas otherwise governed by Part 3 of this Code,
                                                                                                    Subsection 4.2.8. applies to the “incidental” storage of flammable and combustible liquids that is deemed to
                                                                                                    be secondary to the principal activity of storing commodities covered in Part 3. This includes the storage of
                                                                                                    used lubricating oil in the warehouse portion (industrial occupancy) of a retail outlet. Subsection 4.2.8. also
                                                                                                    applies to the storage of used lubricating oil at motor vehicle repair and service garages because such storage is
                                                                                                    secondary to the principal activity of repairing and servicing motor vehicles.

                                                                                                    A-4.2.8.3.(1)      The fire separation required by this Sentence should also prevent the passage of vapours.


                                                                                                    National Fire Code of Canada 2020                                                                   Division B 4-99
                                                                                                    A-4.3.1.2.(2)(b)                                                                                    Division B

                                                                                                    A-4.3.1.2.(2)(b) The contents of a tank that is exposed to an external fire can be heated to the point of
                                                                                                    boiling. Under such circumstances, the normal vent for the tank may not be of sufficient size to release the
                                                                                                    vapours created by the boiling contents; emergency venting is therefore required to prevent damage to the
                                                                                                    tank's shell or roof resulting from an explosion within the tank.
                                                                                                    Tanks conforming to API SPEC 12B, “Specification for Bolted Tanks for Storage of Production Liquids,”
                                                                                                    API SPEC 12D, “Specification for Field Welded Tanks for Storage of Production Liquids,” and API SPEC
                                                                                                    12F, “Specification for Shop Welded Tanks for Storage of Production Liquids,” are typically used by oil
                                                                                                    field companies involved in the exploration, production and transmission of natural gas and oil. These API
                                                                                                    specifications allow tanks that are used in remote locations to be constructed without emergency venting.
                                                                                                    However, these tanks are also installed in built-up areas to store production liquids, in which case, they
                                                                                                    must comply with Clause 4.3.1.2.(2)(b).




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                                                                                                    A-4.3.1.2.(3) Some flammable and combustible liquids are corrosive, which can cause steel tanks to
                                                                                                    prematurely corrode and leak. Storage tanks should therefore be specifically selected while taking into
                                                                                                    consideration the potential for aggressive internal corrosion. Storage solutions for corrosive materials include
                                                                                                    the following:
                                                                                                       • a double-walled aboveground tank with an interstitial space that is continuously monitored
                                                                                                       • a single-walled aboveground tank that is installed in a secondary containment system in accordance with
                                                                                                          Subsection 4.3.7. and has a protective coating or lining that is compatible with the liquid being stored

                                                                                                    A-4.3.1.8.(1)(b) Examples of devices to prevent overfill include automatic sensing devices for
                                                                                                    interconnection with shut-off equipment at the supply vehicle, automatic overfill shut-off devices of a float
                                                                                                    valve or other mechanical type, and overfill alarm devices of the audible or visual type.

                                                                                                    A-4.3.1.8.(2)      A tight-fill operation means that a mechanical, liquid-tight connection is used at the fill point.

                                                                                                    A-4.3.1.10.(3) Storage tanks can also be refurbished for underground use in conformance with
                                                                                                    CAN/ULC-S669, “Standard for Internal Retrofit Systems for Underground Tanks for Flammable and
                                                                                                    Combustible Liquids.” The process outlined in this document is applicable in a limited number of cases, such as
                                                                                                    when the storage tank is in a location that is hard to reach.

                                                                                                    A-4.3.2.1.(4) Boil-over is an event in the burning of certain oils in an open top tank when, after a long period
                                                                                                    of quiescent burning, there is a sudden increase in fire intensity associated with expulsion of burning oil from
                                                                                                    the tank. Boil-over occurs when the residues from surface burning become more dense than the unburned oil
                                                                                                    and sink below the surface to form a hot layer, which progresses downward much faster than the regression of
                                                                                                    the liquid surface. When this hot layer, called a “heat wave,” reaches water or water-in-oil emulsion in the
                                                                                                    bottom of the tank, the water is first superheated and subsequently boils almost explosively, overflowing the
                                                                                                    tank. Oils subject to boil-over consist of both light ends and viscous residues. These characteristics are present
                                                                                                    in most crude oils and can be produced in synthetic mixtures.
                                                                                                    Note: A boil-over is an entirely different phenomenon from a slop-over or a froth-over. Slop-over involves a
                                                                                                    minor frothing that occurs when water is sprayed onto the hot surface of a burning oil. Froth-over is not
                                                                                                    associated with a fire but results when water is present or enters a tank containing hot viscous oil. Upon mixing,
                                                                                                    the sudden conversion of water to steam causes a portion of the tank contents to overflow.

                                                                                                    A-4.3.2.5. Guidelines for the protection of storage tanks can also be found in standards published by the
                                                                                                    NFPA and FM Global. Such guidelines are considered as good engineering practice in assessing the protection
                                                                                                    necessary for tanks.

                                                                                                    A-4.3.7.5.(1) When the height of a secondary containment wall exceeds 1.8 m, there is an increased potential
                                                                                                    for heavier-than-air vapour to accumulate at ground level within the contained area. Depending on the nature
                                                                                                    of such a vapour accumulation, it may be explosive or sufficiently toxic to seriously endanger personnel. Entry
                                                                                                    into such a contained area should always be preceded by testing for such a vapour accumulation.

                                                                                                    A-4.3.7.5.(2) Vapours from Class I liquids may reach unsafe concentrations when confined in the small
                                                                                                    space between the tank and the secondary containment wall. Remotely operated valves or elevated walkways
                                                                                                    eliminate the need for personnel to enter the bottom of the contained area to operate a valve.


                                                                                                    4-100 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                       A-4.4.1.2.(1)

                                                                                                    A-4.3.8.9.(1) The purpose of anchoring or providing overburden on top of underground storage tanks
                                                                                                    is to prevent them from lifting out of the ground in the event of a rise in the water table or a flood. Any
                                                                                                    proposed means of anchorage or overburden must be sufficient to resist the uplift forces on tanks when they
                                                                                                    are empty and completely submerged.
                                                                                                    Means that have been successfully employed to protect tanks against uplift are
                                                                                                     (a) anchor straps to concrete supports beneath them,
                                                                                                     (b) ground anchors, and
                                                                                                     (c) reinforced concrete slabs or planks on top of them.

                                                                                                    A-4.3.12.3.(6)      A fill pipe (i.e. remote fill piping) is considered offset if it has a non-vertical component.




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                                                                                                    Special care must be taken during remote fill operations because the fill pipe acts as a pressure line and a
                                                                                                    build-up of pressure in the fill piping system could result in an unexpected release of liquid if a check valve is
                                                                                                    provided in the fill piping system.

                                                                                                    A-4.3.13.4.(1)(b) Table 4.3.13.4.-B deals with storage tanks that are outside the scope of CSA B139 Series,
                                                                                                    “Installation code for oil-burning equipment” (which limits the capacity of individual storage tanks to 2 500 L
                                                                                                    and their aggregate capacity to 5 000 L) and harmonizes requirements for all occupancies using oil-burning
                                                                                                    equipment, emergency generators and fire pumps.

                                                                                                    A-4.3.13.9.(1)(b) The area that should be considered for ventilation is the space occupied by the tanks and
                                                                                                    extending to a distance that is classified electrically as Class I, Zone 2, when no ventilation is provided.

                                                                                                    A-4.3.13.10.(1) For the design of normal and emergency venting of indoor storage tanks,
                                                                                                    Sentence 4.3.13.10.(1) refers to Subsection 4.3.4., which in turn refers to API STD 2000, “Venting Atmospheric
                                                                                                    and Low-Pressure Storage Tanks.” However, API STD 2000 is intended for outdoor tanks rather than indoor
                                                                                                    tanks. The venting rate reduction factors for water spray on the tank surface, or drainage rates for spilled
                                                                                                    liquids, should not be used to calculate the emergency venting rate of a storage tank installed inside a building.
                                                                                                    The effects of water spray cooling and room drainage on the calculated emergency venting rate must be worked
                                                                                                    out according to good engineering practice. Increased emergency venting capacity may be required.

                                                                                                    A-4.3.13.11.(2) Good engineering practice for the design of supports for suspended storage tanks should
                                                                                                    meet the intent of Subsection 4.3.3. as much as possible. Such factors as the provision of adequate fire resistance
                                                                                                    for supports, the need to prevent over-stressing of the tank shell or its supports, and resistance to earthquake
                                                                                                    forces in areas subject to such forces should be taken into consideration.

                                                                                                    A-4.3.16.1.(1) The following documents are examples of good engineering practice for the activities
                                                                                                    listed in Sentence 4.3.16.1.(1):
                                                                                                        • Annex C of NFPA 30, “Flammable and Combustible Liquids Code”
                                                                                                        • API RP 1604, “Closure of Underground Petroleum Storage Tanks”
                                                                                                        • CCME PN 1326, “Environmental Code of Practice for Aboveground and Underground Storage Tank
                                                                                                          Systems Containing Petroleum and Allied Petroleum Products”

                                                                                                    A-4.4.1.2.(1) In the context of Sentence 4.4.1.2.(1) and Table 4.4.1.2.-E, the annual inspection and testing
                                                                                                    of sumps involves gaining access to the sumps, inspecting them at regular intervals throughout the year,
                                                                                                    assessing whether any problems exist, and ensuring any problems are addressed. In general, the annual
                                                                                                    inspection of sumps should ensure that:
                                                                                                       • the lids to the sumps are tight and correctly sealed,
                                                                                                       • the walls of the sumps are intact and are not slumping or warping,
                                                                                                       • the sumps are free of debris, liquid and ice,
                                                                                                       • the sumps are free of cracks and holes,
                                                                                                       • the piping, fittings, and connections are not leaking or dripping liquid,
                                                                                                       • no new stains have developed since the last inspection,
                                                                                                       • the sensors are correctly positioned,
                                                                                                       • all penetrations into the sumps are in good condition,
                                                                                                       • the test boots (if provided) are in good condition, not cracked or torn, correctly positioned in the sumps,
                                                                                                         and open so liquid can drain by gravity back into the sump, and
                                                                                                       • the piping and other equipment in the sumps are in good condition.


                                                                                                    National Fire Code of Canada 2020                                                                       Division B 4-101
                                                                                                    A-4.4.1.2.(7)                                                                                     Division B

                                                                                                    A-4.4.1.2.(7) Owners and operators of systems can use a number of methodologies to meet or exceed the
                                                                                                    leak detection requirements in Section 4.4. A list of leak detection technologies is available from the National
                                                                                                    Work Group on Leak Detection Evaluations (NWGLDE). The United States Environmental Protection Agency
                                                                                                    (EPA) has delegated authority to the NWGLDE to determine which test methodologies meet the testing
                                                                                                    protocol of the EPA.

                                                                                                    A-4.4.2.1.(2) Inventory reconciliation leak detection methods used for a storage tank should follow an
                                                                                                    established procedure in order to minimize errors and reveal any trend that indicates a loss of product from
                                                                                                    the tank. Several documents deal with inventory reconciliation such as the booklet entitled EPA 510-B-93-004,
                                                                                                    “Doing Inventory Control Right for Underground Storage Tanks,” which also allows calculations for the
                                                                                                    inventory reconciliation procedure to be carried out using an electronic methodology referred to as automatic




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                                                                                                    tank gauging.

                                                                                                    A-4.4.2.1.(3) Vapour monitors sense and measure product vapour in the soil around the tank and piping to
                                                                                                    determine the presence of a leak. Groundwater monitoring devices sense the presence of liquid product floating
                                                                                                    on the groundwater. Both methods require the installation of carefully placed monitoring wells in the ground
                                                                                                    near the tank and along the piping runs. Examples of good engineering practice for the location and installation
                                                                                                    of monitoring wells can be found in CCME PN 1326, “Environmental Code of Practice for Aboveground and
                                                                                                    Underground Storage Tank Systems Containing Petroleum and Allied Petroleum Products.” In either case, a
                                                                                                    professionally conducted site assessment is critical for determining site-specific conditions such as groundwater
                                                                                                    level and flow direction, background contamination, stored product type, and soil type.
                                                                                                    All equipment and devices used for automated or manually operated vapour or groundwater monitoring
                                                                                                    systems that are tested in conformance with EPA 530/UST-90/008, “Standard Test Procedures For Evaluating
                                                                                                    Leak Detection Methods: Vapor-Phase Out-of-Tank Product Detectors,” or EPA 530/UST-90/009, “Standard
                                                                                                    Test Procedures For Evaluating Leak Detection Methods: Liquid-Phase Out-of-Tank Product Detectors,” are
                                                                                                    deemed to meet the intent of Sentence 4.4.2.1.(3).

                                                                                                    A-4.4.2.1.(4) The Statistical Inventory Reconciliation (SIR) leak detection method uses sophisticated
                                                                                                    computer software to determine whether a storage tank system is leaking. The software performs a statistical
                                                                                                    analysis of inventory, delivery, and dispensing data collected over a period of time and provided by the
                                                                                                    operator to a vendor. SIR can allow the owner or operator to meet leak detection requirements using only
                                                                                                    the equipment that most facilities have readily at hand (i.e. a tank stick and a tank chart used for inventory
                                                                                                    control). As an example, the booklet EPA 510-B-95-009, “Introduction To Statistical Inventory Reconciliation
                                                                                                    For Underground Storage Tanks,” provides basic information to determine if SIR is the appropriate leak
                                                                                                    detection method to be used for a particular installation.
                                                                                                    Additionally, to ensure that the collection of data for SIR purposes meets the intent of the leak detection, the
                                                                                                    SIR method also needs to be evaluated following a protocol such as the one defined in EPA 530/UST-90/007,
                                                                                                    “Standard Test Procedures For Evaluating Leak Detection Methods: Statistical Inventory Reconciliation
                                                                                                    Methods.”

                                                                                                    A-4.4.2.1.(5) Automatic tank gauging systems use monitors that are permanently installed in the tank.
                                                                                                    These monitors are linked electronically to a nearby control device to provide information on product level
                                                                                                    and temperature. The gauging system can automatically calculate the changes in product volume, which can
                                                                                                    indicate a leaking tank. For inventory control, the automatic tank gauging system replaces the use of the gauge
                                                                                                    stick to measure product level. It records the activities of an in-service tank, including deliveries.
                                                                                                    All equipment used for automatic tank gauging systems that meets the requirements of CAN/ULC-S675.1,
                                                                                                    “Standard for Volumetric Leak Detection Devices for Underground and Aboveground Storage Tanks for
                                                                                                    Flammable and Combustible Liquids,” is deemed to comply with this Sentence.

                                                                                                    A-4.4.2.1.(6) A continuous in-tank leak detection system involves a combination of statistical inventory
                                                                                                    reconciliation (SIR) techniques and good quality liquid level and temperature data, which can be obtained
                                                                                                    from tank gauging systems or probes. It may involve monitoring only a storage tank, but when the piping
                                                                                                    system is part of the delivery system, it should include the entire system.
                                                                                                    This system provides increased sensitivity and accuracy for the following reasons:
                                                                                                      • it incorporates the temperature characteristic and an increased frequency of readings into the data, and
                                                                                                      • inventory reconciliation may be conducted after each dispensing operation.
                                                                                                    The system is designed to meet the monitoring performance standard of detecting a leak rate of 0.76 L/h with a
                                                                                                    95% probability of detection and a maximum false positive of 5%.


                                                                                                    4-102 Division B                                                                     National Fire Code of Canada 2020
                                                                                                    Division B                                                                                        A-4.5.5.6.

                                                                                                    A-4.4.2.1.(7) Low-tech secondary containment monitoring involves a visual examination of the containment
                                                                                                    area, including conventional open dyke areas or a contiguous interstitial space. Some designs may use visual
                                                                                                    examination of the liquid gauges, sumps and collection pits.
                                                                                                    All equipment and devices used in conformance with CAN/ULC-S675.1, “Standard for Volumetric Leak
                                                                                                    Detection Devices for Underground and Aboveground Storage Tanks for Flammable and Combustible
                                                                                                    Liquids,” and CAN/ULC-S675.2, “Standard for Nonvolumetric Precision Leak Detection Devices for
                                                                                                    Underground and Aboveground Storage Tanks and Piping for Flammable and Combustible Liquids,” are
                                                                                                    deemed to comply with Sentence 4.4.2.1.(7).

                                                                                                    A-4.4.2.1.(8)(b)(ii) The presence or location of leaks in aboveground tanks can be determined through
                                                                                                    various testing methods, including ultrasonic, magnetic particle and video graphic testing. The location of leaks




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                                                                                                    in the bottom of a tank shell can also be determined by vacuum testing. All testing should be conducted by
                                                                                                    individuals or companies trained in the proper care and use of the testing equipment. The choice of test
                                                                                                    methodology should be appropriate for the application.

                                                                                                    A-4.4.2.1.(10)(a) The performance requirements of CAN/ULC-S675.1, “Standard for Volumetric Leak
                                                                                                    Detection Devices for Underground and Aboveground Storage Tanks for Flammable and Combustible
                                                                                                    Liquids,” and CAN/ULC-S675.2, “Standard for Nonvolumetric Precision Leak Detection Devices for
                                                                                                    Underground and Aboveground Storage Tanks and Piping for Flammable and Combustible Liquids,” are
                                                                                                    deemed to meet the intent of Clause 4.4.2.1.(10)(a).
                                                                                                    The location of leaks in underground storage tanks can be determined through non-volumetric testing, which
                                                                                                    includes acoustical, tracer and external product detection methods. The location of leaks in the bottom of
                                                                                                    a tank shell can also be determined by vacuum testing. All testing should be conducted by individuals or
                                                                                                    companies trained in the proper care and use of the testing equipment. The choice of test methodology shall be
                                                                                                    appropriate for the application.

                                                                                                    A-4.4.2.1.(12) Locating the single check valve anywhere other than immediately under the pump will
                                                                                                    require an alternative method of line leak detection for the piping system.
                                                                                                    In such cases, when the piping system is not operating, a positive pressure is created by trapping the flammable
                                                                                                    liquid or combustible liquid in the pipe. The piping system should therefore be considered as a pressure piping
                                                                                                    system and the applicable provisions of the NFC should be applied.

                                                                                                    A-4.4.4.1. Inventory reconciliation and liquid level measurements can only be conducted on storage tanks
                                                                                                    that have a metered pump, dispenser or some other type of measuring device that can determine the amount
                                                                                                    of product withdrawn over a specific period of time. Other leak detection methods must be used for piping
                                                                                                    systems and storage tanks without meters or measuring devices.
                                                                                                    Inventory reconciliation leak detection methods used for a storage tank should follow an established procedure
                                                                                                    in order to minimize errors and determine any trend that indicates a loss of product from the tank.
                                                                                                    The recording of pump meter readings, shipments, internal transfers, product delivery receipts or
                                                                                                    measurements of the level of contents of a storage tank shall not in and of itself constitute a record as required
                                                                                                    by Article 4.4.4.1. In addition, suppliers of flammable and combustible liquids should provide their customers
                                                                                                    with sufficient data to conduct proper inventory reconciliation. Inventories, which have been adjusted for
                                                                                                    volume through temperature compensation, must also be available to operators by volume according to
                                                                                                    meter measurements.
                                                                                                    Inventory reconciliation is not to be confused with statistical inventory reconciliation (SIR), which is a
                                                                                                    third-party computerized analysis of tank operator inventory data.
                                                                                                    Indications of a potential leak from inventory reconciliation practice include:
                                                                                                      (a) any unexplained loss or gain of 0.5 percent or more of the throughput from an underground storage tank
                                                                                                          or a loss of 1.0 percent or more of the throughput from an aboveground storage tank noted for each stored
                                                                                                          product in a calendar month, as indicated by the recording and reconciliation of inventory records,
                                                                                                     (b) inventory reconciliations showing five consecutive days of unexplained product losses,
                                                                                                      (c) inventory reconciliations showing 18 days of unexplained losses in one calendar month, or
                                                                                                     (d) the level of water at the bottom of an underground storage tank exceeding 50 mm.

                                                                                                    A-4.5.5.6. Mechanical connections include flanged, bolted and threaded piping connections and
                                                                                                    compression fittings, but not welded, glued and fused connections.


                                                                                                    National Fire Code of Canada 2020                                                                   Division B 4-103
                                                                                                    A-4.5.5.7.(1)                                                                                     Division B

                                                                                                    A-4.5.5.7.(1) All penetrations into sumps, including those for electrical cables, should be minimized and,
                                                                                                    where possible, should be brought into the sump from the top.

                                                                                                    A-4.5.6.12.(1) It is good practice to space hangers for pipe having a nominal diameter of 50 mm or less not
                                                                                                    more than 3.5 m apart.

                                                                                                    A-4.5.9.2.(1) Sentence 4.5.9.2.(1) is not intended to apply to small-capacity pumps that operate at low
                                                                                                    pressures, such as those normally associated with waste oil tanks. Safety measures should nevertheless be taken
                                                                                                    to protect the pump from mechanical and collision damage, and to control any spillage of liquid resulting
                                                                                                    from pump damage or failure.




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                                                                                                    A-4.5.10.7.(6) The following documents contain examples of good engineering practice as regards the
                                                                                                    maintenance of pressurized piping systems:
                                                                                                      • API STD 1104, “Welding of Pipelines and Related Facilities,”
                                                                                                      • API RP 2200, “Repairing Crude Oil, Liquefied Petroleum Gas, and Product Pipelines,” and
                                                                                                      • API RP 2201, “Safe Hot Tapping Practices in the Petroleum and Petrochemical Industries.”

                                                                                                    A-4.6.1.1. Section 4.6. applies only to the portion of a property where fuel-dispensing operations are
                                                                                                    conducted. When a facility combines fuel-dispensing operations with other types of business (motor vehicle
                                                                                                    repair garage, convenience store, restaurant, etc.), Section 4.6. is intended to apply only to the fuel-dispensing
                                                                                                    operations and the adjacent business shall conform to other Sections of this Code based on its occupancy
                                                                                                    classification (assembly occupancy for a restaurant, mercantile occupancy for a convenience store, industrial
                                                                                                    occupancy for a repair garage, etc.).

                                                                                                    A-4.6.4.1.(1) and (2) The emergency shut-off device required by Sentence 4.6.4.1.(1) allows power to all
                                                                                                    dispensers and pumps to be rapidly shut off in the event of a spill, fire or other dangerous situation. A circuit
                                                                                                    breaker on an electrical panel is not considered to be such a device.
                                                                                                    The shut-off device can be located indoors or outdoors, but should be placed close enough to the dispensers
                                                                                                    and pumps to allow it to be quickly located and activated.
                                                                                                    The shut-off device is primarily intended for use by station attendants and emergency responders.
                                                                                                    Nevertheless, the owner of a fuel-dispensing station may choose to install the shut-off device in a location
                                                                                                    where it is accessible to the public.

                                                                                                    A-4.6.8.4.(1) The authorized holder of a card or key who has received adequate training in the safe and
                                                                                                    responsible operation of the equipment is not considered a member of the “general public.” Such is not the case
                                                                                                    for coin-operated or preset dispensers, which can be operated by anyone.

                                                                                                    A-4.6.8.6.(2) When gasoline vapour is allowed to enter into a diesel-fuelled engine through the air intake,
                                                                                                    there is a potential for the diesel engine to run away. In a runaway condition, a diesel engine would accelerate
                                                                                                    in an uncontrolled manner even if the ignition were switched off, resulting in damage to the engine and
                                                                                                    potentially causing a fire.

                                                                                                    A-4.6.8.8.(2) Figure A-4.6.8.8.(2) shows two examples of signs that indicate that smoking is not permitted
                                                                                                    and that the engine ignition must be turned off while the vehicle is being refuelled.



                                                                                                                                              NO SMOKING

                                                                                                                                              WITHIN 7.5 m


                                                                                                                                           TURN IGNITION OFF

                                                                                                                                              WHILE BEING

                                                                                                                                              REFUELLED

                                                                                                                                                                              EG00574A


                                                                                                     Figure A-4.6.8.8.(2)
                                                                                                     Fuel-dispensing station signs


                                                                                                    4-104 Division B                                                                     National Fire Code of Canada 2020
                                                                                                    Division B                                                                                A-4.10.5.1.(1)

                                                                                                    A-4.7.4. When used in this Subsection, the terms “loading” and “unloading” shall mean the loading and
                                                                                                    unloading of tank vehicles or tank cars.

                                                                                                    A-4.7.4.4.(2) Loading racks using bottom loading often load at high flow rates. The thermal expansion
                                                                                                    capacity at the top of the compartment is often insufficient to prevent an overfill if the requested volume does
                                                                                                    not fit the compartment (operator error or retain in the compartment). Overfill sensors must be designed to
                                                                                                    allow adequate time for the control valves to close before the compartment overfills. Retain sensors and/or a
                                                                                                    well-established operator training program could achieve the same result.

                                                                                                    A-4.7.4.5. API RP 2003, “Protection Against Ignitions Arising Out of Static, Lightning, and Stray Currents,”
                                                                                                    is an example of good engineering practice for the activities described in Article 4.7.4.5.




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                                                                                                    A-4.8.8.1.(1)(a) TC SOR/2012-69, “Vessel Pollution and Dangerous Chemicals Regulations,” may apply
                                                                                                    to flexible cargo hoses described in this Code. The following documents are considered good engineering
                                                                                                    practice for this application:
                                                                                                       • OCIMF 2009, “Guide to Manufacturing and Purchasing Hoses for Offshore Moorings,” and
                                                                                                       • ARPM IP-2, “Hose Handbook.”

                                                                                                    A-4.9.3.4.(1) Examples of equipment that meets the requirements of Sentence 4.9.3.4.(1) are dispensing
                                                                                                    stations, open centrifuges, plate and frame filters, open vacuum filters and surfaces of open equipment.

                                                                                                    A-4.10.1.1.(1) Beer, wine, and spirits that contain less than 20% by volume alcohol are not considered to
                                                                                                    be flammable liquids and are not regulated by this Section. Section 4.10. does not apply to wineries where
                                                                                                    distilled beverage alcohol is used to fortify wine.

                                                                                                    A-4.10.3.2. Exposed steel supports do not have a 2 h fire-resistance rating, and need protection as much
                                                                                                    as timber supports for tanks. Due to the water miscibility of beverage alcohols, automatic sprinklers provide
                                                                                                    an effective means of achieving the necessary protection, provided there is sufficient space under the tank to
                                                                                                    permit their installation.

                                                                                                    A-4.10.3.3.(1) The use of “good engineering practice” in the design of normal and emergency venting is
                                                                                                    intended to prevent an accumulation of flammable vapours inside the building that may present an explosion
                                                                                                    hazard. For new tank installations, this can be achieved by directing breather vents and emergency vents
                                                                                                    equipped with flame arrestors or pressure/vacuum valves to the outside of the building. However, on existing
                                                                                                    tank installations, installation of such vents may be impractical. Venting into the interior space may not
                                                                                                    constitute an undue hazard where certain measures are taken to ensure an adequate degree of fire safety. Such
                                                                                                    measures include, but are not limited to:
                                                                                                       • the installation of automatic sprinklers throughout the tank room and under any raised tanks greater
                                                                                                          than 1.2 m in diameter,
                                                                                                       • the classification of electrical equipment and wiring according to the zone classifications of CSA C22.1,
                                                                                                          “Canadian Electrical Code, Part I,”
                                                                                                       • the provision of adequate natural or mechanical ventilation meeting the objectives of Article 4.10.6.1., and
                                                                                                       • the training of personnel in safe operating procedures.

                                                                                                    A-4.10.5.1.(1) Piping and pumping systems should be designed to recognized engineering standards
                                                                                                    and accepted industry practice.




                                                                                                    National Fire Code of Canada 2020                                                                  Division B 4-105
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4-106 Division B




National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Part 5
                                                                                                    Hazardous Processes and Operations




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                                                                                                      5.1.          General
                                                                                                      5.1.1.        Scope ................................................ 5-1
                                                                                                      5.1.2.        Electrical Installations ..................... 5-1
                                                                                                      5.1.3.        Ventilation ......................................... 5-1
                                                                                                      5.1.4.        Flash Point ........................................ 5-2
                                                                                                      5.1.5.        Fire Safety Plan ................................ 5-2

                                                                                                      5.2.          Hot Works
                                                                                                      5.2.1.        General .............................................. 5-2
                                                                                                      5.2.2.        Hot Work Equipment ........................ 5-2
                                                                                                      5.2.3.        Prevention of Fires ........................... 5-3

                                                                                                      5.3.          Dust-Producing
                                                                                                                    Processes
                                                                                                      5.3.1.        General .............................................. 5-4
                                                                                                      5.3.2.        Woodworking Operations ................ 5-6
                                                                                                      5.3.3.        Grain Handling and Storage
                                                                                                                    Facilities ............................................ 5-6

                                                                                                      5.4.          Special Processes
                                                                                                                    Involving Flammable and
                                                                                                                    Combustible Liquids and
                                                                                                                    Materials
                                                                                                      5.4.1.        Baking and Drying Processes ........ 5-7
                                                                                                      5.4.2.        Dry Cleaning Plants ......................... 5-7
                                                                                                      5.4.3.        Fumigation and Thermal
                                                                                                                    Insecticidal Fogging ........................ 5-7
                                                                                                      5.4.4.        Floor Finishing ................................. 5-8
                                                                                                      5.4.5.        Spray Coating Processes ................ 5-8
                                                                                                      5.4.6.        Dipping and Coating Processes ..... 5-9
                                                                                                      5.4.7.        Production of Ethanol for Fuel ........ 5-9

                                                                                                      5.5.          Laboratories
                                                                                                      5.5.1.        Scope ................................................ 5-9
                                                                                                      5.5.2.        Construction ..................................... 5-9
                                                                                                      5.5.3.        Fire Prevention and Protection ..... 5-10
                                                                                                      5.5.4.        Ventilation ....................................... 5-11
                                                                                                      5.5.5.        Dangerous Goods .......................... 5-12

                                                                                                      5.6.          Construction and
                                                                                                                    Demolition Sites
                                                                                                      5.6.1.        General ............................................ 5-14
                                                                                                      5.6.2.        Excavation ...................................... 5-17
                                                                                                      5.6.3.        Additional Requirements for
                                                                                                                    Residential and Business and
                                                                                                                    Personal Services Occupancies ... 5-17




                                                                                                    National Fire Code of Canada 2020
                                                                                                                                                                                   Division B

                                                                                                    5.6.4.   Additional Requirements for
                                                                                                             Buildings of Encapsulated
                                                                                                             Mass Timber Construction ............ 5-19

                                                                                                    5.7.     Objectives and
                                                                                                             Functional Statements
                                                                                                    5.7.1.   Objectives and Functional
                                                                                                             Statements ...................................... 5-20

                                                                                                             Notes to Part 5 ................ 5-27




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                                                                                                                                                                      National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Part 5
                                                                                                    Hazardous Processes and Operations




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                                                                                                    Section 5.1. General
                                                                                                    5.1.1.            Scope

                                                                                                    5.1.1.1.          Application

                                                                                                                         1) This Part applies to processes and operations that involve a risk from explosion,
                                                                                                                      high flammability or related conditions that create a hazard to life safety.

                                                                                                    5.1.1.2.          Explosives

                                                                                                                         1) The manufacturing, handling, transportation, sale and use of dangerous goods
                                                                                                                      classified as explosives shall be in conformance with NRCan R.S.C., 1985, c. E-17,
                                                                                                                      “Explosives Act,” and its Regulations.

                                                                                                    5.1.1.3.          Display Fireworks

                                                                                                                        1) The handling and discharge of fireworks shall conform to NRCan 2010,
                                                                                                                      “Display Fireworks Manual.”

                                                                                                    5.1.2.            Electrical Installations

                                                                                                    5.1.2.1.          Hazardous Locations

                                                                                                                         1) Where wiring or electrical equipment is located in areas in which flammable
                                                                                                                      gases or vapours, combustible dusts or combustible fibres are present in quantities
                                                                                                                      sufficient to create a hazard, such wiring and electrical equipment shall conform
                                                                                                                      to CSA C22.1, “Canadian Electrical Code, Part I,” for hazardous locations. (See
                                                                                                                      Note A-5.1.2.1.(1).)

                                                                                                    5.1.2.2.          General

                                                                                                                         1) Electrical installations shall conform to the appropriate provincial or territorial
                                                                                                                      regulations or municipal bylaws, or in the absence of such regulations, to CSA C22.1,
                                                                                                                      “Canadian Electrical Code, Part I,” except that alternatives to these requirements are
                                                                                                                      permitted as described in Clause 1.2.1.1.(1)(b) of Division A in areas other than those
                                                                                                                      described in Article 5.1.2.1.

                                                                                                    5.1.3.            Ventilation

                                                                                                    5.1.3.1.          Ventilation

                                                                                                                         1) Ventilation shall be provided for hazardous locations and processes in
                                                                                                                      conformance with the NBC and with this Part.


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 5-1
                                                                                                    5.1.4.1.                                                                                          Division B

                                                                                                    5.1.4.           Flash Point
                                                                                                    5.1.4.1.         Flash Point
                                                                                                                        1) The flash points of flammable liquids and combustible liquids shall be determined in
                                                                                                                     conformance with Subsection 4.1.3.

                                                                                                    5.1.5.           Fire Safety Plan
                                                                                                    5.1.5.1.         Fire Safety Plan
                                                                                                                        1) A fire safety plan conforming to Section 2.8. shall be prepared.




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                                                                                                    Section 5.2. Hot Works
                                                                                                    5.2.1.           General
                                                                                                    5.2.1.1.         Application
                                                                                                                        1) This Section applies to hot works involving open flames or producing heat or
                                                                                                                     sparks, including but not limited to, cutting, welding, soldering, brazing, grinding,
                                                                                                                     adhesive bonding, roofing operations, thermal spraying and thawing pipes.
                                                                                                                        2) Except as provided in this Section, hot works described in Sentence (1) shall
                                                                                                                     conform to CSA W117.2, “Safety in welding, cutting and allied processes.”

                                                                                                    5.2.1.2.         Training
                                                                                                                        1) Hot works shall be performed only by personnel trained in the safe use of
                                                                                                                     equipment in conformance with this Section.

                                                                                                    5.2.2.           Hot Work Equipment
                                                                                                    5.2.2.1.         Maintenance
                                                                                                                        1) Hot work equipment shall be maintained in good operating condition.

                                                                                                    5.2.2.2.         Inspection
                                                                                                                        1) Hot work equipment shall be examined for leakage or defects prior to each use.
                                                                                                                        2) Leaks or defects found in hot work equipment shall be repaired prior to use.

                                                                                                    5.2.2.3.         Equipment Not in Use
                                                                                                                        1) All valves shall be closed and gas lines bled when hot work equipment using
                                                                                                                     dangerous goods classified as compressed gases is not in use.
                                                                                                                        2) Electric hot work equipment shall be de-energized when not in use.

                                                                                                    5.2.2.4.         Compressed Gas Equipment
                                                                                                                       1) The design and installation of oxygen-fuel gas equipment shall conform to
                                                                                                                     NFPA 51, “Standard for the Design and Installation of Oxygen-Fuel Gas Systems for
                                                                                                                     Welding, Cutting, and Allied Processes.”
                                                                                                                        2) Unalloyed copper piping shall not be used for acetylene gas.
                                                                                                                        3) Oil or grease shall not be used with equipment for oxygen.
                                                                                                                        4) Cylinders of dangerous goods classified as compressed gases shall conform to
                                                                                                                     Part 3.


                                                                                                    5-2 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                              5.2.3.4.

                                                                                                    5.2.3.            Prevention of Fires
                                                                                                    5.2.3.1.          Location of Operations
                                                                                                                         1) Except as provided in Sentence (2), hot work shall be carried out in an area
                                                                                                                      free of combustible and flammable contents, with walls, ceilings and floors of
                                                                                                                      noncombustible construction or lined with noncombustible materials.
                                                                                                                         2) When it is not practicable to undertake hot work in an area described in
                                                                                                                      Sentence (1),
                                                                                                                         a) combustible and flammable materials within a 15 m distance from the hot
                                                                                                                             work shall be protected against ignition in conformance with Article 5.2.3.2.,




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                                                                                                                         b) a continuous fire watch shall be provided during the hot work and for a
                                                                                                                             period of not less than 60 min after its completion in conformance with
                                                                                                                             Article 5.2.3.3., and
                                                                                                                         c) a final inspection of the hot work area and adjacent exposed areas shall
                                                                                                                             be conducted
                                                                                                                                i) 4 h after completion of the work, or
                                                                                                                               ii) after completion of the fire watch required in Clause (b),
                                                                                                                                   in which case, a more comprehensive inspection shall be
                                                                                                                                   conducted (see Note A-5.2.3.1.(2)(c)(ii)).
                                                                                                                        3) When there is a possibility of sparks or open flames reaching combustible
                                                                                                                      materials in areas adjacent to the area where hot work is carried out,
                                                                                                                         a) openings in walls, floors or ceilings shall be covered or closed to prevent the
                                                                                                                             passage of sparks or open flames to such adjacent areas, or
                                                                                                                        b) Sentence (2) shall apply to such adjacent areas.

                                                                                                    5.2.3.2.          Protection of Combustible and Flammable Materials
                                                                                                                         1) Any combustible and flammable material, dust or residue shall be
                                                                                                                         a) removed from the area where hot work is carried out, or
                                                                                                                         b) except as provided in Sentence (2), protected against ignition by the use of
                                                                                                                            noncombustible materials.
                                                                                                                         2) Combustible materials or building surfaces that cannot be removed or protected
                                                                                                                      against ignition as required in Clause (1)(b) shall be thoroughly wetted where hot
                                                                                                                      work is carried out.
                                                                                                                         3) The fire watch described in Clauses 5.2.3.1.(2)(b) and (c) shall be carried out by
                                                                                                                      more than one person if combustible materials are exposed to the hot work operations
                                                                                                                      but cannot be directly observed by the initial person performing the fire watch.
                                                                                                                         4) Any process or activity that produces flammable gases or vapours, combustible
                                                                                                                      dusts or combustible fibres in quantities sufficient to create a fire or explosion hazard
                                                                                                                      shall be interrupted and the hazardous conditions shall be removed before any hot
                                                                                                                      work is carried out.

                                                                                                    5.2.3.3.          Fire Watch
                                                                                                                         1) The exposed areas described in Sentences 5.2.3.1.(2) and (3) shall be
                                                                                                                      continuously examined for ignition of combustible materials by personnel equipped
                                                                                                                      with and trained in the use of fire extinguishing equipment. (See Note A-5.2.3.3.(1).)

                                                                                                    5.2.3.4.          Work on Containers, Equipment or Piping
                                                                                                                         1) Hot work shall not be performed on containers, equipment, or piping
                                                                                                                      containing flammable liquids, combustible liquids or dangerous goods classified as
                                                                                                                      flammable gases unless
                                                                                                                          a) they have been cleaned and tested with a gas detector to ascertain that they
                                                                                                                             are free of explosive vapours, or
                                                                                                                         b) safety measures are taken in conformance with good engineering practice
                                                                                                                             (see Note A-5.2.3.4.(1)(b)).
                                                                                                                         2) Hot work shall not be performed on a totally enclosed container.


                                                                                                    National Fire Code of Canada 2020                                                                       Division B 5-3
                                                                                                    5.2.3.5.                                                                                         Division B

                                                                                                                        3) Hot work shall not be performed on metal objects that are in contact with
                                                                                                                     combustible materials unless safety precautions are taken to prevent their ignition
                                                                                                                     by conduction.

                                                                                                    5.2.3.5.         Work Adjacent to Piping

                                                                                                                        1) When hot work is to be carried out near piping containing dangerous goods
                                                                                                                     classified as flammable gases, the piping shall
                                                                                                                         a) conform to Sentence 5.2.3.4.(1), or
                                                                                                                         b) be protected by a thermal barrier against the passage of heat.




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                                                                                                    5.2.3.6.         Fire Extinguishing Equipment

                                                                                                                        1) At least one portable fire extinguisher shall be provided in the hot work area.

                                                                                                    5.2.3.7.         Fire Safety Plan

                                                                                                                        1) A fire safety plan conforming to Section 2.8. shall be prepared for buildings and
                                                                                                                     areas described in Article 2.8.1.1. where hot works are conducted.


                                                                                                    Section 5.3. Dust-Producing Processes
                                                                                                    5.3.1.           General

                                                                                                    5.3.1.1.         Application

                                                                                                                        1) This Section shall apply to buildings or parts of buildings where combustible dusts
                                                                                                                     are produced in quantities or concentrations that create an explosion or fire hazard.

                                                                                                    5.3.1.2.         Dust Removal

                                                                                                                        1) Building and machinery surfaces shall be kept clean of accumulations of
                                                                                                                     combustible dusts using cleaning equipment that
                                                                                                                        a) is made of materials that will not create electrostatic charges or sparks,
                                                                                                                        b) is electrically conductive and bonded to ground, and
                                                                                                                        c) except as permitted in Sentence (3), removes the dust to a safe location
                                                                                                                           by vacuum.

                                                                                                                        2) Cleaning equipment required in Sentence (1) that is used in an atmosphere
                                                                                                                     containing combustible dusts shall conform to CSA C22.1, “Canadian Electrical Code,
                                                                                                                     Part I.”

                                                                                                                         3) Where it is not possible to effectively remove the dust by vacuum, it is permitted
                                                                                                                     to use compressed air or other means that will cause the dust to become suspended
                                                                                                                     in the air during removal if, in the dust removal area,
                                                                                                                         a) all sources of ignition are eliminated, and
                                                                                                                         b) all machinery and equipment is de-energized, unless such machinery or
                                                                                                                             equipment is suitable for use in atmospheres containing combustible dusts, in
                                                                                                                             conformance with CSA C22.1, “Canadian Electrical Code, Part I.”

                                                                                                    5.3.1.3.         Dust-Collecting Systems

                                                                                                                       1) Dust-collecting systems shall be provided to prevent the accumulation of dust
                                                                                                                     and keep suspended dusts at a safe concentration inside a building.

                                                                                                                        2) A dust-collecting system required in Sentence (1) shall
                                                                                                                        a) be designed in conformance with good engineering practice,
                                                                                                                        b) be made of noncombustible materials, and
                                                                                                                         c) not create sparks upon physical contact in the fan assembly.
                                                                                                                     (See Note A-5.3.1.3.(2).)


                                                                                                    5-4 Division B                                                                      National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                 5.3.1.9.

                                                                                                    5.3.1.4.          Dust Collectors
                                                                                                                         1) Except as provided in Sentence (2), a dust collector having a capacity greater
                                                                                                                      than 2.36 m3/s shall
                                                                                                                         a) be located outside of a building, and
                                                                                                                         b) be equipped with explosion venting to the outdoors of not less than 0.1 m2
                                                                                                                             of vent area for each cubic metre of dust collector enclosure volume.
                                                                                                                         2) A dust collector described in Sentence (1) is permitted to be located inside a
                                                                                                                      building if it is
                                                                                                                          a) provided with explosion venting to the outdoors as specified in
                                                                                                                              Clause (1)(b),




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                                                                                                                          b) equipped with an automatic explosion prevention system, or
                                                                                                                          c) located in a room with fire separations having a fire-resistance rating of not less
                                                                                                                              than 1 h and provided with explosion venting to the outdoors.
                                                                                                                         3) When air exhausted by a dust collector described in this Article is returned to a
                                                                                                                      building, the dust-collecting system shall be designed so that
                                                                                                                          a) returned air will not create an explosion hazard inside the building, and
                                                                                                                          b) the exhaust fan and ancillary equipment are automatically shut down in the
                                                                                                                              event of a fire or an explosion inside the dust collector.

                                                                                                    5.3.1.5.          Bonding and Grounding
                                                                                                                         1) Electrically conducting parts of conveying systems, dust collectors,
                                                                                                                      dust-producing machines and any equipment capable of accumulating static electricity
                                                                                                                      located in an atmosphere containing combustible dusts shall be electrically bonded
                                                                                                                      and grounded.
                                                                                                                         2) Static electricity shall be prevented from accumulating on machines or
                                                                                                                      equipment subject to static electricity buildup by appropriate bonding, grounding
                                                                                                                      and static eliminating devices.

                                                                                                    5.3.1.6.          Explosion Venting
                                                                                                                         1) Except as provided in Article 5.3.1.7., an activity that creates an atmosphere
                                                                                                                      containing significant concentrations of combustible dusts shall be located only in a
                                                                                                                      building provided with explosion venting to the outdoors.
                                                                                                                         2) When explosion venting is required in this Section, it shall be designed to
                                                                                                                      prevent critical structural and mechanical damage to the building in conformance with
                                                                                                                      good engineering practice such as that described in NFPA 68, “Standard on Explosion
                                                                                                                      Protection by Deflagration Venting.” (See Note A-3.2.8.2.(1)(d).)

                                                                                                    5.3.1.7.          Explosion Prevention Systems
                                                                                                                         1) In processes where an explosion hazard is present and conditions exist that
                                                                                                                      prevent adequate explosion venting as required in this Section, an explosion prevention
                                                                                                                      system shall be provided.
                                                                                                                         2) When an explosion prevention system is required in this Section, it shall be
                                                                                                                      designed in conformance with good engineering practice such as that described in
                                                                                                                      NFPA 69, “Standard on Explosion Prevention Systems.”

                                                                                                    5.3.1.8.          Electrical Interlocks
                                                                                                                         1) Equipment required to have a dust-collecting system shall be interlocked to
                                                                                                                      prevent it from operating if the dust-collecting system is not in operation.

                                                                                                    5.3.1.9.          Separators
                                                                                                                        1) Separators shall be provided to prevent the entrance of foreign materials that
                                                                                                                      may cause sparks in conveying equipment, dust collectors, dust-producing machines
                                                                                                                      and any equipment located in an atmosphere containing combustible dusts.


                                                                                                    National Fire Code of Canada 2020                                                                          Division B 5-5
                                                                                                    5.3.1.10.                                                                                        Division B

                                                                                                    5.3.1.10.        Ignition Sources
                                                                                                                        1) Unless controlled in a manner that will not create a fire or explosion hazard,
                                                                                                                     a device, operation or activity that produces open flames, sparks or heat shall not be
                                                                                                                     permitted. (See Note A-4.1.5.2.(1).)
                                                                                                                        2) Portable electrical equipment used in atmospheres containing combustible dusts
                                                                                                                     shall conform to CSA C22.1, “Canadian Electrical Code, Part I.”
                                                                                                                        3) Smoking shall not be permitted in atmospheres containing combustible dusts.

                                                                                                    5.3.2.           Woodworking Operations




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                                                                                                    5.3.2.1.         Exhaust Systems
                                                                                                                        1) Every machine that produces wood dust, particles or shavings shall be
                                                                                                                     provided with a blower and exhaust system installed in conformance with NFPA
                                                                                                                     664, “Standard for the Prevention of Fires and Explosions in Wood Processing and
                                                                                                                     Woodworking Facilities.”
                                                                                                                        2) Operations or machines that generate sparks or combustible vapours shall not
                                                                                                                     be served by exhaust systems connected to woodworking machines referred to in
                                                                                                                     Sentence (1).

                                                                                                    5.3.2.2.         Shavings and Sawdust Collection
                                                                                                                       1) Loose shavings and sawdust shall be collected at frequent intervals and
                                                                                                                     deposited in receptacles described in Article 2.4.1.3.

                                                                                                    5.3.2.3.         Fire Extinguishers
                                                                                                                        1) A portable extinguisher shall be provided within 7.5 m of any machine
                                                                                                                     producing wood dust, particles or shavings.

                                                                                                    5.3.3.           Grain Handling and Storage Facilities
                                                                                                    5.3.3.1.         Storage Bins and Silos
                                                                                                                         1) A product subject to spontaneous heating shall be permitted to be stored in
                                                                                                                     silos or bins only if measures are taken to
                                                                                                                         a) monitor the temperature of the stored product, and
                                                                                                                         b) prevent overheating of the stored product from creating a fire or explosion
                                                                                                                             hazard.
                                                                                                                        2) Permanently open vent stacks are permitted to be used for the ventilation of
                                                                                                                     storage bins where mechanical dust-collecting systems are not practical, provided
                                                                                                                     that the vent stacks
                                                                                                                         a) have a cross-sectional area not less than twice that of all spouts discharging
                                                                                                                             into the bin,
                                                                                                                         b) are installed not more than 30° from the vertical,
                                                                                                                         c) extend from the top of the bin to a point not less than 1.2 m above the roof,
                                                                                                                             and
                                                                                                                        d) are designed to prevent the entry of snow and rain.

                                                                                                    5.3.3.2.         Conveying Equipment
                                                                                                                        1) Belt conveyors and bucket elevator legs shall be equipped with safety devices to
                                                                                                                        a) detect excessive misalignment, blockage, slipping or slow-down of the
                                                                                                                           conveying equipment, and
                                                                                                                        b) prevent conditions described in Clause (a) from creating a fire or explosion
                                                                                                                           hazard by
                                                                                                                              i) alerting personnel trained in taking appropriate actions, or
                                                                                                                             ii) automatically stopping the conveying equipment.
                                                                                                                        2) Conveying equipment belts shall be made of static conductive materials to
                                                                                                                     prevent buildup of static charges. (See Note A-5.3.3.2.(2).)


                                                                                                    5-6 Division B                                                                      National Fire Code of Canada 2020
                                                                                                    Division B                                                                                              5.4.3.3.

                                                                                                                         3)   Conveying equipment bearings shall be
                                                                                                                         a)   accessible for inspection and maintenance,
                                                                                                                         b)   lubricated to prevent overheating, and
                                                                                                                         c)   kept free of accumulation of combustible dusts.
                                                                                                                         4) Belt conveyor galleries and tunnels and bucket elevator leg enclosures
                                                                                                                      shall be provided with explosion venting to the outdoors in conformance with
                                                                                                                      Sentence 5.3.1.6.(2).

                                                                                                    5.3.3.3.          Separators
                                                                                                                         1) Separators shall be provided at grain receiving points ahead of the conveying




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                                                                                                                      equipment. (See Article 5.3.1.9.)

                                                                                                    5.3.3.4.          Fire Protection
                                                                                                                         1) Nozzles for standpipe and hose systems shall conform to Sentence 3.2.5.11.(7)
                                                                                                                      of Division B of the NBC.


                                                                                                    Section 5.4. Special Processes Involving Flammable
                                                                                                    and Combustible Liquids and Materials
                                                                                                    5.4.1.            Baking and Drying Processes
                                                                                                    5.4.1.1.          Application
                                                                                                                         1) This Subsection applies to baking and drying processes during which
                                                                                                                      flammable vapours are given off by the products being baked or dried.

                                                                                                    5.4.1.2.          Design, Operation and Maintenance
                                                                                                                         1) The design, operation and maintenance requirements relating to baking and
                                                                                                                      drying processes shall conform to NFPA 86, “Standard for Ovens and Furnaces.”

                                                                                                    5.4.2.            Dry Cleaning Plants
                                                                                                    5.4.2.1.          Dry Cleaning Plants
                                                                                                                         1) Dry cleaning plants shall conform to NFPA 32, “Standard for Drycleaning
                                                                                                                      Facilities.”

                                                                                                    5.4.3.            Fumigation and Thermal Insecticidal Fogging
                                                                                                    5.4.3.1.          Application
                                                                                                                         1) This Subsection applies to the fumigation or thermal insecticidal fogging of
                                                                                                                      buildings, including the fumigation of equipment or commodities within structures,
                                                                                                                      tanks or bins or under tarpaulins.

                                                                                                    5.4.3.2.          Notification
                                                                                                                         1) The fire department shall be notified before any operation described in
                                                                                                                      Article 5.4.3.1. is conducted.
                                                                                                                         2) The occupants of any premises adjacent to that in which fumigation or thermal
                                                                                                                      insecticidal fogging is to take place shall be given prior notice.

                                                                                                    5.4.3.3.          Ignition Sources
                                                                                                                         1) All flames and other sources of ignition shall be eliminated in any part of a
                                                                                                                      building undergoing fumigation or thermal insecticidal fogging.


                                                                                                    National Fire Code of Canada 2020                                                                   Division B 5-7
                                                                                                    5.4.3.4.                                                                                          Division B

                                                                                                    5.4.3.4.         Electric Power
                                                                                                                        1) Electric power supply shall be shut off to the premises undergoing fumigation
                                                                                                                     or thermal insecticidal fogging.

                                                                                                    5.4.3.5.         Air Temperature
                                                                                                                        1) The air temperature in the part of a building undergoing fumigation or thermal
                                                                                                                     insecticidal fogging shall be kept sufficiently low to prevent the actuation of any
                                                                                                                     sprinkler or fire alarm system.

                                                                                                    5.4.3.6.         Access to Premises




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                                                                                                                        1) No unauthorized person shall be permitted to enter a premise undergoing
                                                                                                                     fumigation or thermal insecticidal fogging until the premise has been ventilated and is
                                                                                                                     safe.
                                                                                                                        2) Warning signs shall be posted in a conspicuous location near every entrance to
                                                                                                                     the premises being fumigated.
                                                                                                                        3) One person shall be on duty at each entrance to the premises undergoing
                                                                                                                     fumigation or thermal insecticidal fogging to prevent any unauthorized person from
                                                                                                                     entering until such premises have been ventilated.

                                                                                                    5.4.4.           Floor Finishing
                                                                                                    5.4.4.1.         Application
                                                                                                                         1) Floor finishing operations involving the use of flammable liquids or combustible
                                                                                                                     liquids shall conform to Part 4 and this Subsection.

                                                                                                    5.4.4.2.         Public Access
                                                                                                                       1) Any part of a building where floor finishing operations are done shall not be
                                                                                                                     open to the public.

                                                                                                    5.4.4.3.         Ventilation
                                                                                                                        1) Ventilation shall be provided in areas where floor finishing operations are done
                                                                                                                     to prevent the accumulation of flammable vapours.
                                                                                                                        2) Ventilation required in Sentence (1) is permitted to be provided by mechanical
                                                                                                                     systems if their use does not constitute a source of ignition.

                                                                                                    5.4.4.4.         Sources of Ignition
                                                                                                                        1) All mechanical systems, electric motors and other equipment that might be a
                                                                                                                     source of ignition shall be shut down, and smoking and the use of open flames shall
                                                                                                                     be prohibited during the application of Class I liquids and for at least 1 h after such
                                                                                                                     application.

                                                                                                    5.4.4.5.         Waste Receptacles
                                                                                                                         1) A receptacle conforming to Article 2.4.1.3. shall be provided for all waste rags
                                                                                                                     and materials used in operations involving flammable liquids or combustible liquids, and
                                                                                                                     the contents shall be removed daily and disposed of in a manner that will not create
                                                                                                                     a fire hazard.

                                                                                                    5.4.5.           Spray Coating Processes
                                                                                                    5.4.5.1.         Application
                                                                                                                       1) This Subsection applies to spray coating processes involving the use of
                                                                                                                     combustible dry powders, flammable liquids or combustible liquids.


                                                                                                    5-8 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                             5.5.2.2.

                                                                                                    5.4.5.2.          Design, Operation and Maintenance
                                                                                                                         1) The design, operation and maintenance requirements relating to spray
                                                                                                                      coating processes shall conform to NFPA 33, “Standard for Spray Application Using
                                                                                                                      Flammable or Combustible Materials.”

                                                                                                    5.4.6.            Dipping and Coating Processes
                                                                                                    5.4.6.1.          Application
                                                                                                                         1) This Subsection applies to
                                                                                                                         a) processes in which products or materials are immersed in a dip tank




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                                                                                                                            containing flammable liquids or combustible liquids, and
                                                                                                                         b) the unatomized application of flammable liquids or combustible liquids, such as
                                                                                                                            by flow coating or roll coating processes.

                                                                                                    5.4.6.2.          Design, Operation and Maintenance
                                                                                                                         1) The design, operation and maintenance requirements relating to dipping and
                                                                                                                      coating processes shall conform to NFPA 34, “Standard for Dipping, Coating, and
                                                                                                                      Printing Processes Using Flammable or Combustible Liquids.”

                                                                                                    5.4.7.            Production of Ethanol for Fuel
                                                                                                    5.4.7.1.          Application
                                                                                                                        1) This Subsection applies to process plants where ethanol is produced for fuel
                                                                                                                      purposes.
                                                                                                                         2) For the purpose of applying this Subsection, ethanol concentrations greater than
                                                                                                                      or equal to 20% by volume of ethanol in water shall be considered as a flammable liquid.

                                                                                                    5.4.7.2.          Use, Handling and Storage
                                                                                                                        1) The use, handling and storage of dangerous goods, excluding flammable liquids
                                                                                                                      and combustible liquids, shall conform to Part 3.


                                                                                                    Section 5.5. Laboratories
                                                                                                    5.5.1.            Scope
                                                                                                    5.5.1.1.          Application
                                                                                                                          1) This Section applies to laboratories where dangerous goods, including flammable
                                                                                                                      liquids and combustible liquids, are used. (See Note A-5.5.1.1.(1).)
                                                                                                                         2) Except as otherwise specified in this Section, the use, handling and storage
                                                                                                                      of dangerous goods, including flammable liquids and combustible liquids, shall conform
                                                                                                                      to Parts 3, 4 and 5.

                                                                                                    5.5.2.            Construction
                                                                                                    5.5.2.1.          Interior Finish Materials
                                                                                                                         1) Interior finish materials, floors, fixed furniture and equipment shall be
                                                                                                                      chemically resistant to dangerous goods being used in a laboratory to minimize their
                                                                                                                      deterioration, in conformance with Articles 3.2.7.7. and 3.2.7.8.

                                                                                                    5.5.2.2.          Separation
                                                                                                                         1) A laboratory shall be separated from other parts of the building by fire separations
                                                                                                                      conforming to this Code and the NBC, but having a fire-resistance rating of not less
                                                                                                                      than 1 h.


                                                                                                    National Fire Code of Canada 2020                                                                      Division B 5-9
                                                                                                    5.5.3.1.                                                                                         Division B

                                                                                                    5.5.3.            Fire Prevention and Protection
                                                                                                    5.5.3.1.          Emergency Planning
                                                                                                                         1) A fire safety plan conforming to Section 2.8. shall be prepared.
                                                                                                                         2) Except as provided in Sentences (3) to (6), a laboratory shall conform to the
                                                                                                                      requirements for emergency planning stated in Section 2.8.
                                                                                                                         3) Personnel working in a laboratory shall be trained in the safe handling and use
                                                                                                                      of dangerous goods, in conformance with Article 3.2.7.15.
                                                                                                                         4) Dangerous goods shall be identified in conformance with Article 3.2.7.13.




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                                                                                                                         5) The laboratory shall be clearly designated as an area containing dangerous goods
                                                                                                                      in conformance with Article 3.2.7.14.
                                                                                                                         6) Measures shall be taken to prevent access to the laboratory by unauthorized
                                                                                                                      persons.

                                                                                                    5.5.3.2.          Combustible Materials
                                                                                                                         1) Where combustible materials, such as packaging materials, are used in a
                                                                                                                      laboratory, their quantity shall not be greater than the supply for one day of normal
                                                                                                                      operation.
                                                                                                                         2) Combustible materials in excess of those permitted in Sentence (1) shall be
                                                                                                                      stored outside of the laboratory in conformance with Section 3.2.

                                                                                                    5.5.3.3.          Spill Control
                                                                                                                         1) Absorbent and neutralizing materials shall be provided in the laboratory and in
                                                                                                                      the dangerous goods storage areas in conformance with Sentence 3.2.7.11.(2).

                                                                                                    5.5.3.4.          Electrical Equipment
                                                                                                                         1) Except as provided in Sentence 5.5.3.5.(3), electrical equipment located in areas
                                                                                                                      where the concentration of flammable vapours is sufficient to create a hazard shall
                                                                                                                      conform to CSA C22.1, “Canadian Electrical Code, Part I,” for the hazardous locations.
                                                                                                                      (See Note A-5.5.3.4.(1).)
                                                                                                                         2) Electrical equipment located inside a power-ventilated enclosure required in
                                                                                                                      Article 5.5.4.2. and its exhaust duct system shall
                                                                                                                         a) conform to Sentence (1), and
                                                                                                                         b) be designed and maintained to prevent the accumulation of combustible
                                                                                                                              or reactive deposits.

                                                                                                    5.5.3.5.          Ignition Sources
                                                                                                                         1) Smoking shall not be permitted in a laboratory and signs shall be posted in
                                                                                                                      conformance with Article 2.4.2.2.
                                                                                                                          2) Where overheating of unattended equipment using heat can cause a fire or an
                                                                                                                      explosion, such equipment shall be equipped with a high temperature limit switch
                                                                                                                      fitted to
                                                                                                                           a) sound an alarm, and
                                                                                                                           b) shut off the heat.
                                                                                                                        3) An ignition source that is an integral part of an operation involving flammable
                                                                                                                      vapours shall be permitted, provided
                                                                                                                         a) the supply of flammable liquids or combustible liquids for this operation is
                                                                                                                            controlled and kept to a strict minimum,
                                                                                                                         b) flammable vapours and combustion fumes are exhausted in conformance
                                                                                                                            with Article 5.5.4.2.,
                                                                                                                         c) there is no other source of ignition capable of igniting the flammable
                                                                                                                            vapours in an uncontrolled manner, and
                                                                                                                         d) there is no combustible material in the immediate vicinity of this operation.


                                                                                                    5-10 Division B                                                                     National Fire Code of Canada 2020
                                                                                                    Division B                                                                                             5.5.4.4.

                                                                                                    5.5.3.6.          Inspection and Maintenance

                                                                                                                        1) Electrical equipment, mechanical systems, piping, valves, and automatic and
                                                                                                                      manual control and safety devices shall be inspected, tested and maintained in good
                                                                                                                      operating condition at all times.

                                                                                                                         2) The ventilation systems serving a laboratory shall be inspected and cleaned
                                                                                                                      to prevent the accumulation of combustible or reactive deposits, and the intervals
                                                                                                                      between inspections shall be not greater than
                                                                                                                          a) 12 months for the ventilation systems of the laboratory and dangerous goods
                                                                                                                             storage areas, and
                                                                                                                          b) 6 months for the ventilation system of a power-ventilated enclosure




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                                                                                                                             required in Article 5.5.4.2.


                                                                                                    5.5.4.            Ventilation

                                                                                                    5.5.4.1.          General Ventilation

                                                                                                                         1) A laboratory shall be provided with continuous mechanical ventilation that is
                                                                                                                         a) designed in conformance with Article 6.3.4.2. of Division B of the NBC, and
                                                                                                                         b) maintained to ensure it fulfills the function for which it was designed.

                                                                                                    5.5.4.2.          Power-Ventilated Enclosure

                                                                                                                          1) The use of dangerous goods in a laboratory shall be confined inside a
                                                                                                                      power-ventilated enclosure conforming to Articles 6.3.4.3. and 6.3.4.4. of Division B
                                                                                                                      of the NBC when
                                                                                                                          a) their use releases flammable vapours or causes runaway or potentially
                                                                                                                             explosive reactions,
                                                                                                                          b) liquids are heated to a temperature equal to or greater than their flash point,
                                                                                                                             or
                                                                                                                          c) Class I liquids or unstable liquids are used.

                                                                                                                         2) A power-ventilated enclosure required in Sentence (1) shall not be used for the
                                                                                                                      storage of dangerous goods, and any quantity in excess of the supply necessary for
                                                                                                                      normal operations shall conform to Subsection 5.5.5.

                                                                                                    5.5.4.3.          Enclosure Exhaust Ventilation

                                                                                                                         1) Except as provided in Sentence (2), the ventilation system for a power-ventilated
                                                                                                                      enclosure required in Article 5.5.4.2. shall conform to Article 6.3.4.3. of Division B of
                                                                                                                      the NBC.

                                                                                                                          2) The ventilation system described in Sentence (1) shall not be interlocked with a
                                                                                                                      fire detection, fire alarm or make-up air system.

                                                                                                                         3) Where combustible or reactive deposits can accumulate in the power-ventilated
                                                                                                                      enclosure and its exhaust duct system and create a fire or explosion hazard,
                                                                                                                         a) provisions shall be made to remove such deposits so they do not create a
                                                                                                                             fire or explosion hazard, or
                                                                                                                         b) an automatic fire suppression system shall be provided.

                                                                                                    5.5.4.4.          Enclosure Construction

                                                                                                                         1) The power-ventilated enclosure required in Article 5.5.4.2. and its exhaust duct
                                                                                                                      system shall conform to Article 6.3.4.4. of Division B of the NBC and
                                                                                                                          a) be provided with instructions for its use and the operation of the ventilation
                                                                                                                             system, and
                                                                                                                         b) be provided with means to control accidental spillage.


                                                                                                    National Fire Code of Canada 2020                                                                     Division B 5-11
                                                                                                    5.5.5.1.                                                                                           Division B

                                                                                                    5.5.5.            Dangerous Goods
                                                                                                    5.5.5.1.          Maximum Quantities
                                                                                                                         1) The quantity of dangerous goods kept in a laboratory shall be minimized and
                                                                                                                      shall not exceed the lesser of
                                                                                                                         a) the supply necessary for normal operation, or
                                                                                                                         b) when located in
                                                                                                                                 i) a Group A, Division 2 educational or a Group D major
                                                                                                                                    occupancy, 300 L of flammable liquids and combustible liquids,
                                                                                                                                    of which not more than 50 L shall be Class I liquids, or
                                                                                                                                ii) a Group B major occupancy, the quantities of flammable liquids




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                                                                                                                                    and combustible liquids permitted in Sentence 4.2.6.3.(1).
                                                                                                                      (See Note A-5.5.5.1.(1).)
                                                                                                                         2) Quantities of flammable liquids and combustible liquids in excess of those
                                                                                                                      permitted in Sentence (1) shall be stored in
                                                                                                                         a) cabinets conforming to Subsection 4.2.10. except that, in laboratories
                                                                                                                             described in Clause (1)(b), the total quantity of flammable liquids and
                                                                                                                             combustible liquids stored in such cabinets shall not exceed the quantity
                                                                                                                             permitted for one cabinet, or
                                                                                                                         b) a room conforming to Subsection 4.2.9.
                                                                                                                         3) Quantities of dangerous goods other than flammable liquids and combustible liquids
                                                                                                                      in excess of those permitted in Sentence (1) shall be stored outside of the laboratory in
                                                                                                                      conformance with Part 3.

                                                                                                    5.5.5.2.          Containers for Flammable and Combustible Liquids
                                                                                                                         1) Except as provided in Sentences (2) and (4), containers used for the storage
                                                                                                                      or dispensing of flammable liquids or combustible liquids in a laboratory shall conform
                                                                                                                      to Subsection 4.2.3.
                                                                                                                         2) Where Class I liquids are required to be kept in individual storage or dispensing
                                                                                                                      containers having a capacity greater than 5 L in a laboratory, such containers shall
                                                                                                                         a) be safety containers conforming to ULC/ORD-C30, “Safety Containers,” and
                                                                                                                         b) have a capacity of not more than 25 L.
                                                                                                                         3) Containers used for the preservation of animal, human or plant specimens that
                                                                                                                      contain flammable liquids or combustible liquids shall
                                                                                                                         a) be properly sized for the specimens,
                                                                                                                         b) be stored in a room conforming to Subsection 4.2.9., and
                                                                                                                         c) be protected against breakage and spillage.
                                                                                                                         4) Containers of flammable liquids or combustible liquids shall be kept closed when
                                                                                                                      not in use.

                                                                                                    5.5.5.3.          Compressed Gases
                                                                                                                          1) Cylinders of dangerous goods classified as compressed gases shall not be located
                                                                                                                      in laboratories unless
                                                                                                                          a) they are in use and connected
                                                                                                                                i) to a regulator to deliver gas, or
                                                                                                                               ii) to a manifold being used to deliver gas, or
                                                                                                                          b) one is serving as a single reserve cylinder for a cylinder described in
                                                                                                                             Subclause (a)(i) to which it is firmly secured with a noncombustible
                                                                                                                             attachment.
                                                                                                                         2) Storage cylinders and piping systems for dangerous goods classified as
                                                                                                                      compressed gases used in a laboratory shall be firmly secured with a noncombustible
                                                                                                                      attachment and protected against mechanical damage.
                                                                                                                         3) Each point of supply and each point of use of cylinders or piping systems for
                                                                                                                      dangerous goods classified as compressed gases shall be provided with
                                                                                                                         a) a label identifying the gas being supplied, and
                                                                                                                         b) a manual shut-off valve.


                                                                                                    5-12 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                5.5.5.6.

                                                                                                                         4) Valves on cylinders for dangerous goods classified as compressed gases shall be
                                                                                                                      closed when not in use.
                                                                                                                         5) Except as provided in Sentence (7), where cylinders of dangerous goods classified
                                                                                                                      as toxic gases are used in a laboratory,
                                                                                                                          a) they shall be located in a continuously mechanically ventilated gas storage
                                                                                                                              cabinet,
                                                                                                                          b) all exhaust shall be directed to a treatment system designed to process the
                                                                                                                              accidental release of gas (see Note A-5.5.5.3.(5)(b) and (7)(b)), and
                                                                                                                          c) the gas levels in the air shall be monitored by a gas detection system
                                                                                                                              designed to emit an audible and visual signal within the laboratory and at a
                                                                                                                              central station when gas levels exceed the exposure limit values established




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                                                                                                                              by provincial or territorial regulations or municipal by-laws or, in the
                                                                                                                              absence of such regulations or bylaws, when they exceed the exposure limit
                                                                                                                              values stated in the Safety Data Sheet.
                                                                                                                         6) Except as permitted in Sentence (7), cylinders of dangerous goods classified as
                                                                                                                      compressed gases of pyrophoric materials shall be located in a gas storage cabinet
                                                                                                                      that is
                                                                                                                          a) continuously mechanically ventilated, and
                                                                                                                         b) sprinklered.
                                                                                                                        7) Where lecture bottles of dangerous goods classified as toxic gases or as
                                                                                                                      compressed gases of pyrophoric materials are used in a laboratory,
                                                                                                                         a) they shall be kept in a dedicated continuously mechanically ventilated hood
                                                                                                                            or other continuously mechanically ventilated enclosure, and
                                                                                                                         b) all exhaust shall be directed to a treatment system designed to process the
                                                                                                                            accidental release of gas (see Note A-5.5.5.3.(5)(b) and (7)(b)).

                                                                                                    5.5.5.4.          Refrigerated Storage
                                                                                                                         1) Refrigerators described in Sentence 4.1.4.1.(2) shall be identified in conformance
                                                                                                                      with Article 3.2.7.14.
                                                                                                                         2) Class I liquids that are stored in refrigerators shall be kept in closed containers.

                                                                                                    5.5.5.5.          Dangerously Reactive Materials
                                                                                                                      (See Note A-5.5.5.5.)
                                                                                                                         1) Except as provided in Article 5.5.5.6., the heating of dangerously reactive
                                                                                                                      materials above normal ambient temperature or as specified in the Safety Data Sheet
                                                                                                                      shall be carried out in a separate power-ventilated enclosure
                                                                                                                         a) conforming to Articles 5.5.4.2. to 5.5.4.4., and
                                                                                                                         b) displaying conspicuously posted instructions specifying that the enclosure
                                                                                                                              is to be used for this application only.
                                                                                                                         2) The power-ventilated enclosure required by Sentence (1) as well as its exhaust
                                                                                                                      duct system shall be washed after each use to prevent the possible accumulation of
                                                                                                                      highly reactive or unstable deposits. (See Note A-5.5.5.5.(2).)

                                                                                                    5.5.5.6.          Perchloric Acid
                                                                                                                      (See Note A-5.5.5.6.)
                                                                                                                        1) Where perchloric acid is heated above normal ambient temperature, it shall be
                                                                                                                      done in a separate power-ventilated enclosure
                                                                                                                         a) conforming to Articles 5.5.4.3. and 5.5.4.4., and
                                                                                                                         b) displaying conspicuously posted instructions specifying that the enclosure
                                                                                                                             is to be used for this application only.
                                                                                                                        2) The power-ventilated enclosure required by Sentence (1) as well as its exhaust
                                                                                                                      duct system shall be washed after each use to prevent the accumulation of highly
                                                                                                                      unstable deposits. (See Note A-5.5.5.6.(2).)
                                                                                                                         3) Perchloric acid shall not be heated with an open flame or in a hot oil bath.


                                                                                                    National Fire Code of Canada 2020                                                                        Division B 5-13
                                                                                                    5.5.5.7.                                                                                             Division B

                                                                                                    5.5.5.7.          Chemical Wastes
                                                                                                                         1) Wastes from dangerous goods shall be
                                                                                                                         a) identified to prevent accidental mixing of incompatible chemicals, and
                                                                                                                         b) included in the quantities specified in Article 5.5.5.1.


                                                                                                    Section 5.6. Construction and Demolition Sites
                                                                                                    5.6.1.            General
                                                                                                    5.6.1.1.          Application




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                                                                                                                      (See Note A-5.6.1.1.)
                                                                                                                         1) This Section applies to fire safety for buildings, parts of buildings, facilities,
                                                                                                                      adjacent buildings or facilities, and associated areas undergoing construction, alteration
                                                                                                                      or demolition operations.

                                                                                                    5.6.1.2.          Measures to Mitigate Fire Spread to Adjacent Buildings
                                                                                                                         1) Measures shall be taken to mitigate fire spread to adjacent buildings and
                                                                                                                      facilities that would be exposed to fire originating from buildings, parts of buildings,
                                                                                                                      facilities and associated areas undergoing construction, alteration or demolition
                                                                                                                      operations. (See Note A-5.6.1.2.(1).)

                                                                                                    5.6.1.3.          Fire Safety Plan
                                                                                                                         1) A fire safety plan conforming to Section 2.8. shall be prepared.

                                                                                                    5.6.1.4.          Access for Firefighting
                                                                                                                        1) Unobstructed access to fire hydrants, portable extinguishers and to fire
                                                                                                                      department connections for standpipe and sprinkler systems shall be maintained.
                                                                                                                          2) A means shall be provided to allow firefighters to perform their duties on
                                                                                                                      all levels of the building.
                                                                                                                          3) Provision shall be made for the use of existing elevators, hoists or lifts to assist
                                                                                                                      firefighting personnel in reaching all levels of the building.
                                                                                                                         4) Access routes for fire department vehicles shall be provided and maintained to
                                                                                                                      construction and demolition sites. (See Note A-5.6.1.4.(4).)
                                                                                                                         5) Where a construction or demolition site is fenced so as to prevent general entry,
                                                                                                                      provision shall be made for access by fire department equipment and personnel.

                                                                                                    5.6.1.5.          Portable Extinguishers
                                                                                                                         1) In addition to the other requirements of this Code, portable extinguishers shall
                                                                                                                      be provided in unobstructed and easily accessible locations in any areas
                                                                                                                         a) where hot work operations are carried out,
                                                                                                                         b) where combustibles are stored,
                                                                                                                          c) near or on any internal combustion engines,
                                                                                                                         d) where flammable liquids and combustible liquids or gases are stored or handled,
                                                                                                                         e) where temporary fuel-fired equipment is used, or
                                                                                                                          f) that are designated for smoking.
                                                                                                                         2) The extinguishers required by Sentence (1) shall have a minimum rating of
                                                                                                                         a) 3-A:20-B:C on moveable equipment (see Note A-5.6.1.5.(2)(a)), and
                                                                                                                         b) 4-A:40-B:C in all other locations.

                                                                                                    5.6.1.6.          Standpipe Systems
                                                                                                                      (See Note A-5.6.1.6.)
                                                                                                                         1) Where a standpipe system is to be installed in a building under construction or
                                                                                                                      alteration, the system shall be installed progressively in conformance with Subsection
                                                                                                                      3.2.5. of Division B of the NBC in areas permitted to be occupied.


                                                                                                    5-14 Division B                                                                         National Fire Code of Canada 2020
                                                                                                    Division B                                                                                               5.6.1.9.

                                                                                                                         2) Where a standpipe system is to be installed in portions of a building under
                                                                                                                      construction or alteration that are not occupied, the following shall apply:
                                                                                                                         a) a permanent or temporary standpipe system is permitted in accordance
                                                                                                                             with Clauses (b) and (c),
                                                                                                                         b) the standpipe system shall be provided with conspicuously marked and
                                                                                                                             readily accessible fire department connections on the outside of the building
                                                                                                                             at street level and shall have at least one hose outlet at each floor,
                                                                                                                         c) the pipe size, hose valves and water supply shall conform to Subsection
                                                                                                                             3.2.5. of Division B of the NBC,
                                                                                                                         d) the standpipe system shall, as a minimum, be securely supported and
                                                                                                                             restrained on alternate floors,
                                                                                                                         e) at least one hose valve for attaching fire department hose shall be provided




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                                                                                                                             at each intermediate landing or floor level in the exit stairway,
                                                                                                                          f) valves shall be kept closed at all times and guarded against mechanical
                                                                                                                             damage,
                                                                                                                         g) the standpipe shall be not more than one floor below the highest forms,
                                                                                                                             staging, and similar combustible elements at all times, and
                                                                                                                         h) temporary standpipe systems shall remain in service until the permanent
                                                                                                                             standpipe installation is complete.
                                                                                                                         3) Where a building being demolished floor by floor is equipped with a standpipe
                                                                                                                      system, the system, together with fire department connections and valves, shall be
                                                                                                                      maintained in operable condition on all storeys below the one being demolished, except
                                                                                                                      for the storey immediately below it.

                                                                                                    5.6.1.7.          Hot Surface Applications
                                                                                                                         1) Roofing operations and other surface applications that involve heat sources and
                                                                                                                      hot processes shall be considered hot works and shall conform to the requirements
                                                                                                                      in Sentences (2) and (3) and Section 5.2.
                                                                                                                         2) Bitumen kettles shall
                                                                                                                         a) not be located on roofs or inside a building,
                                                                                                                         b) be provided with adequate metal covers that are close-fitting and
                                                                                                                            constructed of steel having a thickness of not less than No. 14 sheet metal
                                                                                                                            gauge thickness,
                                                                                                                         c) be under constant supervision when in operation, and
                                                                                                                         d) be maintained free of excessive residue.
                                                                                                                         3) Mops that have been used for spreading bitumen shall be kept outside the
                                                                                                                      building in a safe location when not in use.

                                                                                                    5.6.1.8.          Ignition Sources
                                                                                                                      (See Note A-5.6.1.8.)
                                                                                                                         1) Devices capable of producing ignition, internal combustion engines, temporary
                                                                                                                      heating equipment and associated devices shall be kept at a safe distance from
                                                                                                                      combustible material so as not to cause ignition.
                                                                                                                          2) The clearance between combustible materials and temporary heating
                                                                                                                      equipment, including flues, shall be in conformance with Part 6 of Division B of the NBC
                                                                                                                      or in conformance with the minimum clearances shown on certified heating equipment.

                                                                                                    5.6.1.9.          Building Services at Demolition Sites
                                                                                                                         1) Except as required in Sentence (3) and except for water supplies for firefighting,
                                                                                                                      building services shall be terminated at a point located outside the building or part
                                                                                                                      thereof being demolished. (See Note A-5.6.1.9.(1).)
                                                                                                                         2) The service company whose service connections will be affected shall be
                                                                                                                      notified before any action mentioned in Sentence (1) is taken and, if it is necessary to
                                                                                                                      maintain any service, it shall be
                                                                                                                         a) relocated as necessary, and
                                                                                                                         b) protected from damage.


                                                                                                    National Fire Code of Canada 2020                                                                     Division B 5-15
                                                                                                    5.6.1.10.                                                                                          Division B

                                                                                                                         3) Temporary electrical installations shall be installed in conformance with the
                                                                                                                      requirements of CSA C22.1, “Canadian Electrical Code, Part I.”

                                                                                                    5.6.1.10.         Fuel Supply Installation
                                                                                                                         1) Fuel supplies for heating equipment and internal combustion engines shall
                                                                                                                      conform to
                                                                                                                         a) CSA B139 Series, “Installation code for oil-burning equipment,” or
                                                                                                                         b) CSA B149.1, “Natural gas and propane installation code.”

                                                                                                    5.6.1.11.         Tank, Piping and Machinery Reservoir Safety at Demolition Sites




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                                                                                                                         1) Tanks, piping and machinery reservoirs at a demolition site shall be taken out
                                                                                                                      of service in conformance with Subsection 4.3.16.
                                                                                                                         2) Tanks, piping and machinery reservoirs at a demolition site that contain
                                                                                                                      combustible liquids or flammable liquids or that are likely to contain flammable vapours
                                                                                                                      shall be drained and, except as permitted by Sentence (3), removed prior to the
                                                                                                                      demolition of the building.
                                                                                                                         3) Where it is impracticable to remove tanks, piping or machinery reservoirs from
                                                                                                                      the building prior to demolition, such equipment shall be conspicuously identified and
                                                                                                                      removed as soon as conditions permit.
                                                                                                                         4) Tanks, piping and machinery reservoirs referred to in Sentences (1), (2) and (3)
                                                                                                                      that once contained combustible liquids, flammable liquids or flammable gases shall
                                                                                                                      be purged with inert materials prior to demolition to prevent an explosion. (See
                                                                                                                      Note A-5.6.1.11.(4).)

                                                                                                    5.6.1.12.         Fire Separations in Partly Occupied Buildings
                                                                                                                          1) Where part of a building continues to be occupied, the occupied part shall be
                                                                                                                      separated from the part being demolished or constructed by a fire separation having a
                                                                                                                      fire-resistance rating of not less than 1 h.

                                                                                                    5.6.1.13.         Protection during Shutdown
                                                                                                                          1) Except as permitted in Sentence (2), where a fire protection system is provided,
                                                                                                                      it shall remain operational throughout the construction, alteration or demolition area,
                                                                                                                      where reasonably practical.
                                                                                                                         2) When any portion of a fire protection system is temporarily shut down during
                                                                                                                      construction, alteration or demolition operations, protection during shutdown shall
                                                                                                                      comply with Article 6.1.1.4.

                                                                                                    5.6.1.14.         Watch
                                                                                                                         1) A watch, with tours at intervals of not more than 1 h, shall be provided
                                                                                                                      throughout demolition sites when there are occupants in the portion of the building
                                                                                                                      not being demolished.
                                                                                                                         2) Except where a building is provided with a fire alarm system or similar
                                                                                                                      equipment, a watch, with tours at intervals of not more than 1 h, shall be provided
                                                                                                                      when a portion of the building is occupied while construction operations are taking
                                                                                                                      place.
                                                                                                                        3) Facilities shall be provided to enable the watcher referred to in Sentences (1)
                                                                                                                      and (2) to
                                                                                                                         a) ensure a fire warning is sounded to notify occupants, and
                                                                                                                         b) communicate with the fire department.

                                                                                                    5.6.1.15.         Smoking Restrictions
                                                                                                                         1) Smoking shall be permitted only under the conditions stated in Subsection 2.4.2.


                                                                                                    5-16 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                             5.6.3.1.

                                                                                                    5.6.1.16.         Provision for Egress
                                                                                                                         1) In areas of a building where construction, alteration or demolition operations
                                                                                                                      are taking place, at least one exit shall be accessible and usable at all times.
                                                                                                                         2) In buildings being demolished, at least one stairway shall be maintained in
                                                                                                                      usable condition at all times.

                                                                                                    5.6.1.17.         Fire Warning
                                                                                                                         1) A means shall be provided to alert site personnel of a fire and such means shall
                                                                                                                      be capable of being heard throughout the building or facility.




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                                                                                                    5.6.1.18.         Storage and Use of Dangerous Goods
                                                                                                                         1) Combustible liquids and flammable liquids shall be stored and used in conformance
                                                                                                                      with Part 4.
                                                                                                                         2) Dangerous goods shall be stored in conformance with Part 3.
                                                                                                                         3) Dangerous goods shall be used in conformance with Part 5.

                                                                                                    5.6.1.19.         Temporary Enclosures
                                                                                                                         1) Fabrics and films used to temporarily enclose buildings shall be securely
                                                                                                                      fastened to prevent them from being blown against heaters or other ignition sources.

                                                                                                    5.6.1.20.         Disposal of Combustible Refuse
                                                                                                                        1) Combustible refuse in sufficient quantities to constitute a fire hazard shall be
                                                                                                                      moved to a safe location. (See also Subsection 8.2.5. of Division B of the NBC.)

                                                                                                    5.6.2.            Excavation
                                                                                                    5.6.2.1.          Services Shut-off
                                                                                                                         1) Except as provided in Article 5.6.2.2., before excavation begins, building services
                                                                                                                      shall be shut off, terminated and labelled so as to be easily identifiable outside the
                                                                                                                      limits of the excavation. (See also Sentence 5.6.1.9.(1).)
                                                                                                                         2) The service company whose service connections will be affected shall be
                                                                                                                      notified before any action mentioned in Sentence (1) is taken and, if it is necessary to
                                                                                                                      maintain any service, it shall be
                                                                                                                         a) relocated as necessary, and
                                                                                                                         b) protected from damage.

                                                                                                    5.6.2.2.          Maintaining Existing Services
                                                                                                                         1) Existing gas, electrical, water, steam and other services are permitted to be left
                                                                                                                      within the area of the excavation, provided that
                                                                                                                         a) before work begins, the service company concerned has approved the
                                                                                                                             proposed method of operation,
                                                                                                                         b) the location of the services is determined before excavation commences,
                                                                                                                         c) a suitable method of excavation is adopted that will ensure that the services
                                                                                                                             are not damaged, and
                                                                                                                         d) the services are provided with suitable temporary supports.

                                                                                                    5.6.3.            Additional Requirements for Residential and Business and
                                                                                                                      Personal Services Occupancies
                                                                                                    5.6.3.1.          Application
                                                                                                                         1) This Subsection applies only to buildings or parts thereof conforming to Article
                                                                                                                      3.2.2.48., 3.2.2.51., 3.2.2.57. or 3.2.2.60. of Division B of the NBC.


                                                                                                    National Fire Code of Canada 2020                                                                     Division B 5-17
                                                                                                    5.6.3.2.                                                                                            Division B

                                                                                                    5.6.3.2.          Smoking Restrictions
                                                                                                                         1) Where smoking is permitted on a construction, alteration, or demolition site, it
                                                                                                                      shall only be permitted in designated smoking areas, which shall
                                                                                                                          a) be located not less than 3 m away from the building or part of the building
                                                                                                                              under construction, demolition, or alteration,
                                                                                                                         b) be identified with appropriate signage,
                                                                                                                          c) be provided with safe receptacles for the disposal of smoking materials, and
                                                                                                                         d) have a clearance of not less than 3 m from any combustible storage or
                                                                                                                              combustible refuse maintained at all times.
                                                                                                                      (See Note A-5.6.3.2.(1).)




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                                                                                                    5.6.3.3.          Site Identification
                                                                                                                         1) A sign identifying the civic address of the construction or demolition site shall
                                                                                                                      be visible from the access route at the entrance to the site at all times.
                                                                                                                          2) A sign identifying the floor level, stair location and civic address shall be posted
                                                                                                                      at each floor in a stairway required by Sentence 5.6.3.7.(1).

                                                                                                    5.6.3.4.          Disposal of Combustible Refuse
                                                                                                                         1) A clearance of not less than 3 m between exits or any portion of the building
                                                                                                                      and containers used for the disposal of combustible refuse shall be maintained, or
                                                                                                                      equivalent protection shall be provided as specified in the fire safety plan.
                                                                                                                         2) Disposal chutes described in Clause 8.2.5.2.(1)(b) of Division B of the NBC shall
                                                                                                                         a) be constructed of noncombustible material, or
                                                                                                                         b) terminate not less than 2 m above the disposal bin they serve.

                                                                                                    5.6.3.5.          Water Supply
                                                                                                                         1) An adequate water supply for firefighting shall be provided as soon as
                                                                                                                      combustible or encapsulated mass timber construction material arrives on the site. (See
                                                                                                                      Note A-5.6.3.5.(1).) (See also Note A-3.2.5.7.(1) of Division B of the NBC.)

                                                                                                    5.6.3.6.          Hydrant Access
                                                                                                                         1)   Hydrants on a construction, alteration, or demolition site shall
                                                                                                                         a)   be clearly marked with a sign,
                                                                                                                         b)   be accessible, and
                                                                                                                         c)   have an unobstructed clearance of not less than 2 m at all times.

                                                                                                    5.6.3.7.          Construction Access
                                                                                                                         1) For buildings conforming to Article 3.2.2.51. or 3.2.2.60. of Division B of the NBC,
                                                                                                                      during construction, in addition to the requirements of Sentences 5.6.1.4.(2) and (3), at
                                                                                                                      least one stairway shall be provided that
                                                                                                                          a) consists of treads and risers complying with the dimensional requirements
                                                                                                                              of Article 3.4.6.8. of Division B of the NBC,
                                                                                                                          b) is equipped with one handrail conforming to Sentences 3.4.6.5.(5), (6), (7),
                                                                                                                              (11), (13) and (14) of Division B of the NBC,
                                                                                                                          c) is not less than 900 mm wide, and
                                                                                                                         d) is equipped with guards that are
                                                                                                                                 i) not less than 920 mm high when measured vertically to the
                                                                                                                                     top of the guard from a line drawn through the outside
                                                                                                                                     edges of the stair nosings, and
                                                                                                                                ii) not less than 1 070 mm high around landings.
                                                                                                                         2) At least one stairway conforming to Sentence (1) shall be
                                                                                                                         a) extended upward as each floor is installed in new construction, or
                                                                                                                         b) maintained for each floor still remaining during demolition.
                                                                                                                        3) For buildings or parts thereof conforming to Article 3.2.2.48. or 3.2.2.57. of
                                                                                                                      Division B of the NBC, during construction, in addition to the requirements of


                                                                                                    5-18 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                   5.6.4.2.

                                                                                                                      Sentences 5.6.1.4.(2) and (3), at least two stairways complying with Sentences (1), (2)
                                                                                                                      and (4) shall be provided. (See Note A-5.6.3.7.(3) to (5).)
                                                                                                                         4) Stairways referred to in Sentence (3) shall
                                                                                                                         a) be separated from the remainder of the storey by a wall assembly having a
                                                                                                                            fire-resistance rating not less than 30 min, and
                                                                                                                         b) have a doorway on every storey that is provided with
                                                                                                                                i) 45 mm solid core wood doors,
                                                                                                                               ii) hollow metal doors,
                                                                                                                              iii) doors constructed of not less than 12.7 mm thick gypsum
                                                                                                                                   board mechanically fastened to not less than 12.7 mm thick
                                                                                                                                   plywood with the gypsum board facing the floor area, or




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                                                                                                                              iv) door assemblies having a fire-protection rating not less than
                                                                                                                                   20 min.
                                                                                                                      (See Note A-5.6.3.7.(3) to (5).)
                                                                                                                         5) Doors for stairways described in Clause (4)(b) shall
                                                                                                                         a) swing on the vertical axis, and
                                                                                                                         b) be equipped with
                                                                                                                                i) latches, and
                                                                                                                               ii) a means to close automatically.
                                                                                                                      (See Note A-5.6.3.7.(3) to (5).)

                                                                                                    5.6.3.8.          Site Security
                                                                                                                      (See also Article 8.2.1.3. of Division B of the NBC.)
                                                                                                                         1) A strongly constructed fence, boarding or barricade not less than 1.8 m high
                                                                                                                      shall be erected around the perimeter of the construction or demolition site.
                                                                                                                           2) Barricades shall have
                                                                                                                           a) a reasonably smooth surface facing the outside, and
                                                                                                                           b) no openings other than those required for access.
                                                                                                                           3) Access openings through barricades shall be equipped with gates, which shall
                                                                                                                      be
                                                                                                                           a) kept closed and locked when the site is unattended, and
                                                                                                                           b) maintained in place until completion of the construction or demolition
                                                                                                                              activity.
                                                                                                                          4) Fencing, boarding and barricades shall be constructed and maintained in
                                                                                                                      a manner that does not restrict access to the construction or demolition site for
                                                                                                                      firefighting purposes or to fire protection equipment.

                                                                                                    5.6.4.            Additional Requirements for Buildings of Encapsulated
                                                                                                                      Mass Timber Construction
                                                                                                    5.6.4.1.          Application
                                                                                                                         1) This Subsection applies to buildings or parts thereof conforming to Article
                                                                                                                      3.2.2.48. or 3.2.2.57. of Division B of the NBC that are under construction.

                                                                                                    5.6.4.2.          Standpipe Installation
                                                                                                                         1) For each new level at which hose valves are installed, the standpipe system
                                                                                                                      shall be subjected to
                                                                                                                         a) a pneumatic test at 275 kPa for not less than 24 h, or
                                                                                                                         b) a hydrostatic test at 1 380 kPa for not less than 2 h.
                                                                                                                           2) The standpipe system shall be corrected and re-tested if the drop in pressure
                                                                                                                           a) when tested in accordance with Clause (1)(a), is in excess of 21 kPa, or
                                                                                                                           b) when tested in accordance with Clause (1)(b), is in excess of 35 kPa.
                                                                                                                           3) Where a standpipe system is maintained dry,
                                                                                                                           a) after each test or re-test carried out in accordance with Sentence (1), it shall
                                                                                                                              be provided with supervisory air not greater than 172 kPa and not less than
                                                                                                                              35 kPa,


                                                                                                    National Fire Code of Canada 2020                                                                       Division B 5-19
                                                                                                    5.6.4.3.                                                                                           Division B

                                                                                                                         b) each fire department connection shall be provided with
                                                                                                                               i) an audible warning system that sounds when the
                                                                                                                                  supervisory air is less than 35 kPa, or
                                                                                                                              ii) an air pressure gauge indicating the supervisory air
                                                                                                                                  pressure,
                                                                                                                         c) a manual air release with one or more valves of a minimum 30 mm in
                                                                                                                            diameter shall be provided immediately adjacent to each fire department
                                                                                                                            connection such that the air pressure from a pneumatic test is released in
                                                                                                                            not more than 3 min,
                                                                                                                         d) each fire department connection shall be provided with signage
                                                                                                                               i) indicating that the dry standpipe system is pressurized
                                                                                                                                  with air, and




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                                                                                                                              ii) showing the location of the manual air release, and
                                                                                                                         e) provisions shall be made to drain water in any trapped sections of the dry
                                                                                                                            standpipe system that are subject to freezing.

                                                                                                                         4) Where a standpipe system is maintained wet, each fire department connection
                                                                                                                      shall be provided with a water pressure gauge.

                                                                                                                         5) The standpipe system, whether a temporary system or a permanent system
                                                                                                                      being installed progressively, shall be in operable condition at all times when it is not
                                                                                                                      actively being worked on, until the permanent standpipe system is completed.

                                                                                                    5.6.4.3.          Protective Encapsulation

                                                                                                                         1) Except as provided in Sentences (2) and (3), to address safety during
                                                                                                                      construction, a protective encapsulation material or an assembly of materials providing
                                                                                                                      an encapsulation rating of not less than 25 min, as determined in accordance with
                                                                                                                      Sentence 3.1.6.5.(1) of Division B of the NBC, shall be installed
                                                                                                                          a) such that not more than 20% of the area of the underside of each mass
                                                                                                                             timber floor assembly on each storey is exposed during construction,
                                                                                                                         b) on the interior side of stairways required by Sentence 5.6.3.7.(3) and of
                                                                                                                             vertical service spaces where the enclosures are constructed of mass timber
                                                                                                                             elements,
                                                                                                                          c) on each face of solid lumber or mass timber partitions not less than 38 mm
                                                                                                                             thick and on each face of partitions containing wood framing as permitted
                                                                                                                             by Article 3.1.6.15. of Division B of the NBC, and
                                                                                                                         d) such that not more than 35% of the total area of structural mass timber walls
                                                                                                                             within the storey is exposed during construction.
                                                                                                                      (See Note A-5.6.4.3.(1).)

                                                                                                                        2) Not more than the four uppermost contiguous storeys are permitted to be
                                                                                                                      unprotected as required by Sentence (1) during construction.

                                                                                                                         3) The encapsulation material or assembly of materials used to meet the
                                                                                                                      requirements of Sentence (1) is permitted to consist of a single layer of Type X gypsum
                                                                                                                      board not less than 12.7 mm thick conforming to Clauses 3.1.6.6.(2)(a), (c) and (d) of
                                                                                                                      Division B of the NBC.


                                                                                                    Section 5.7. Objectives and Functional Statements
                                                                                                    5.7.1.            Objectives and Functional Statements

                                                                                                    5.7.1.1.          Attribution to Acceptable Solutions

                                                                                                                          1) For the purposes of compliance with this Code as required in
                                                                                                                      Clause 1.2.1.1.(1)(b) of Division A, the objectives and functional statements attributed
                                                                                                                      to the acceptable solutions in this Part shall be the objectives and functional statements
                                                                                                                      listed in Table 5.7.1.1. (See Note A-1.1.2.1.(1).)


                                                                                                    5-20 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                      5.7.1.1.

                                                                                                                          Table 5.7.1.1.                                                        Table 5.7.1.1. (Continued)
                                                                                                      Objectives and Functional Statements Attributed to the
                                                                                                                  Acceptable Solutions in Part 5                             Provision             Functional Statements and Objectives (1)
                                                                                                                Forming Part of Sentence 5.7.1.1.(1)                         5.2.3.3. Fire Watch

                                                                                                     Provision              Functional Statements and Objectives (1)         (1)         [F01-OS1.1] [F02-OS1.2]
                                                                                                     5.1.1.2. Explosives                                                                 [F01-OP1.1] [F02-OP1.2]

                                                                                                     (1)         [F01,F02-OS1.1]                                             5.2.3.4. Work on Containers, Equipment or Piping
                                                                                                     5.1.1.3. Display Fireworks                                              (1)         [F01-OS1.1] Applies to the restriction of hot works.
                                                                                                     (1)         [F01,F02-OS1.1]                                             (2)         [F81,F20-OS3.1]




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                                                                                                     5.1.2.1. Hazardous Locations                                            (3)         [F01-OS1.1] Applies to portion of Code text: “Hot work
                                                                                                                                                                                         shall not be performed on metal objects that are in
                                                                                                     (1)         [F01-OS1.1]                                                             contact with combustible materials unless …”
                                                                                                     5.1.2.2. General                                                        5.2.3.5. Work Adjacent to Piping
                                                                                                     (1)         [F01-OS1.1]                                                 (1)         (b) [F81-OS1.1]
                                                                                                     5.1.3.1. Ventilation                                                    5.2.3.6. Fire Extinguishing Equipment
                                                                                                     (1)         [F01-OS1.1]                                                 (1)         [F02-OS1.2]
                                                                                                     5.2.1.1. Application                                                    5.3.1.2. Dust Removal
                                                                                                     (2)         [F01-OS1.1] Applies to portion of Code text: “… hot works   (1)         [F01-OS1.1]
                                                                                                                 described in Sentence (1) shall conform to CSA W117.2,
                                                                                                                 “Safety in welding, cutting and allied processes.”          (2)         [F01-OS1.1]

                                                                                                     5.2.1.2. Training                                                       (3)         [F01-OS1.1]

                                                                                                     (1)         [F81-OS1.1]                                                 5.3.1.3. Dust-Collecting Systems

                                                                                                     5.2.2.1. Maintenance                                                    (2)         (b) [F02-OS1.2]

                                                                                                     (1)         [F82-OS1.1]                                                             (c) [F01-OS1.1]

                                                                                                     5.2.2.2. Inspection                                                                 (c) [F01-OP1.1]

                                                                                                     (1)         [F82-OS1.1]                                                             (b) [F02-OP1.2]

                                                                                                     (2)         [F82-OS1.1]                                                             (a) [F01-OS1.1]

                                                                                                     5.2.2.3. Equipment Not in Use                                                       (a) [F01-OP1.1]
                                                                                                                                                                             5.3.1.4. Dust Collectors
                                                                                                     (1)         [F43,F01-OS1.1]
                                                                                                     (2)         [F01-OS1.1]                                                 (1)         [F02-OP1.2]

                                                                                                     5.2.2.4. Compressed Gas Equipment                                                   [F02-OS1.2]
                                                                                                                                                                             (2)         [F02,F03-OP1.2] [F01-OP1.1]
                                                                                                     (1)         [F81,F01-OS1.1]
                                                                                                                                                                                         [F02,F03-OS1.2] [F01-OS1.1]
                                                                                                     (2)         [F01-OS1.1]
                                                                                                                                                                             (3)         (b) [F03-OS1.2]
                                                                                                     (3)         [F01-OS1.1]
                                                                                                                                                                                         (b) [F03-OP1.2]
                                                                                                     5.2.3.1. Location of Operations
                                                                                                                                                                                         [F01-OS1.1]
                                                                                                     (1)         [F01-OS1.1]
                                                                                                                                                                                         [F01-OP1.1]
                                                                                                     (2)         (c) [F01-OS1.1] [F02-OS1.2]
                                                                                                                                                                             5.3.1.5. Bonding and Grounding
                                                                                                                 (c) [F01-OP1.1] [F02-OP1.2]
                                                                                                                                                                             (1)         [F01-OS1.1]
                                                                                                     (3)         (a) [F01-OS1.1]
                                                                                                                                                                             (2)         [F01-OS1.1]
                                                                                                     5.2.3.2. Protection of Combustible and Flammable Materials
                                                                                                                                                                             5.3.1.6. Explosion Venting
                                                                                                     (1)         [F01-OS1.1]
                                                                                                                                                                             (1)         [F02-OS1.3]
                                                                                                     (2)         [F01-OS1.1]
                                                                                                                                                                                         [F02-OP1.3]
                                                                                                     (3)         [F01-OS1.1] [F02-OS1.2]
                                                                                                                                                                             (2)         [F02-OP1.3]
                                                                                                                 [F01-OP1.1] [F02-OP1.2]
                                                                                                                                                                                         [F02-OS1.3]
                                                                                                     (4)         [F01-OS1.1]
                                                                                                                                                                             5.3.1.7. Explosion Prevention Systems
                                                                                                                                                                             (1)         [F01-OS1.1]
                                                                                                                                                                             (2)         [F01-OS1.1]


                                                                                                    National Fire Code of Canada 2020                                                                                             Division B 5-21
                                                                                                    5.7.1.1.                                                                                                             Division B

                                                                                                                       Table 5.7.1.1. (Continued)                                         Table 5.7.1.1. (Continued)

                                                                                                     Provision              Functional Statements and Objectives (1)   Provision              Functional Statements and Objectives (1)
                                                                                                    5.3.1.8. Electrical Interlocks                                     5.4.3.5. Air Temperature
                                                                                                    (1)          [F01-OS1.1]                                           (1)         [F81-OS1.2]
                                                                                                    5.3.1.9. Separators                                                            [F81-OP1.2]
                                                                                                    (1)          [F01-OS1.1]                                           5.4.3.6. Access to Premises
                                                                                                    5.3.1.10. Ignition Sources                                         (1)         [F34-OS3.4]
                                                                                                    (1)          [F01-OS1.1]                                                       [F34-OS1.1]




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                                                                                                    (2)          [F01-OS1.1]                                           (2)         [F34-OS3.4]
                                                                                                    (3)          [F01-OS1.1]                                                       [F34-OS1.1]
                                                                                                    5.3.2.1. Exhaust Systems                                           (3)         [F34-OS3.4]
                                                                                                    (1)          [F02-OP1.2]                                                       [F34-OS1.1]
                                                                                                                 [F01-OS1.1] [F02-OS1.2]                               5.4.4.2. Public Access
                                                                                                    (2)          [F01-OS1.1]                                           (1)         [F34-OS3.4]
                                                                                                    5.3.2.2. Shavings and Sawdust Collection                                       [F34-OS1.1]
                                                                                                    (1)          [F01-OS1.1] Applies to portion of Code text: “Loose   5.4.4.3. Ventilation
                                                                                                                 shavings and sawdust shall be collected at frequent   (1)         [F01-OS1.1]
                                                                                                                 intervals …”
                                                                                                                                                                       (2)         [F01-OS1.1]
                                                                                                    5.3.2.3. Fire Extinguishers
                                                                                                                                                                       5.4.4.4. Sources of Ignition
                                                                                                    (1)          [F12-OS1.2]
                                                                                                                                                                       (1)         [F01-OS1.1]
                                                                                                    5.3.3.1. Storage Bins and Silos
                                                                                                                                                                       5.4.4.5. Waste Receptacles
                                                                                                    (1)          [F01-OS1.1]
                                                                                                                                                                       (1)         [F02-OP1.2] Applies to the daily removal of contents.
                                                                                                    5.3.3.2. Conveying Equipment
                                                                                                                                                                                   [F02-OS1.2] Applies to the daily removal of contents.
                                                                                                    (1)          [F81,F11,F01-OS1.1]
                                                                                                                                                                                   [F01-OS1.1] Applies to the disposal of contents in a
                                                                                                    (2)          [F01-OS1.1]                                                       manner that will not create a fire hazard.
                                                                                                    (3)          [F01,F82-OS1.1]                                       5.4.5.2. Design, Operation and Maintenance
                                                                                                    5.3.3.3. Separators                                                (1)         [F01,F82-OS1.1] [F02,F03,F82-OS1.2]
                                                                                                    (1)          [F01-OS1.1]                                           5.4.6.2. Design, Operation and Maintenance
                                                                                                    5.4.1.2. Design, Operation and Maintenance                         (1)         [F01,F82-OS1.1] [F02,F03,F82-OS1.2]
                                                                                                    (1)          [F01,F82-OS1.1] [F02,F03,F82-OS1.2]                   5.5.2.2. Separation
                                                                                                                 [F01,F82-OP1.1] [F02,F03,F82-OP1.2]                   (1)         [F03-OS1.2]
                                                                                                    5.4.2.1. Dry Cleaning Plants                                                   [F03-OP1.2]
                                                                                                    (1)          [F01,F81-OS1.1] [F02,F03,F81-OS1.2]                   5.5.3.1. Emergency Planning
                                                                                                                 [F01,F81-OP1.1] [F02,F03,F81-OP1.2]                   (6)         [F34-OS1.1]
                                                                                                    5.4.3.2. Notification                                                          [F34-OS3.4]
                                                                                                    (1)          [F13-OS3.4]                                                       [F34-OH5]
                                                                                                                 [F13-OS1.1]                                           5.5.3.2. Combustible Materials
                                                                                                    (2)          [F11-OS3.4]                                           (1)         [F02-OS1.2]
                                                                                                                 [F11-OS1.1]                                                       [F02-OP1.2]
                                                                                                    5.4.3.3. Ignition Sources                                          (2)         [F02-OS1.2] Applies to storing outside the laboratory.
                                                                                                    (1)          [F01-OS1.1]                                                       [F02-OP1.2] Applies to storing outside the laboratory.
                                                                                                    5.4.3.4. Electric Power
                                                                                                    (1)          [F01-OS1.1]




                                                                                                    5-22 Division B                                                                                     National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                     5.7.1.1.

                                                                                                                        Table 5.7.1.1. (Continued)                                             Table 5.7.1.1. (Continued)

                                                                                                     Provision            Functional Statements and Objectives (1)           Provision           Functional Statements and Objectives (1)
                                                                                                     5.5.3.3. Spill Control                                                  5.5.5.1. Maximum Quantities
                                                                                                     (1)         [F01-OS1.1] [F02-OS1.2] Applies to portion of Code text:    (1)         (a) [F02-OS1.2]
                                                                                                                 “Absorbent and neutralizing materials shall be provided
                                                                                                                                                                                         (a) [F02-OP1.2]
                                                                                                                 in the laboratory and in the dangerous goods storage
                                                                                                                 areas …”                                                                [F02-OP1.2]
                                                                                                                 [F01-OP1.1] [F02-OP1.2] Applies to portion of Code text:                [F02-OS1.2]
                                                                                                                 “Absorbent and neutralizing materials shall be provided     (3)         [F02-OS1.2] Applies to storing outside the laboratory.
                                                                                                                 in the laboratory and in the dangerous goods storage




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                                                                                                                 areas …”                                                                [F02-OP1.2] Applies to storing outside the laboratory.
                                                                                                     5.5.3.4. Electrical Equipment                                           5.5.5.2. Containers for Flammable and Combustible Liquids
                                                                                                     (1)         [F01-OS1.1]                                                 (2)         [F02,F04-OS1.2] [F43,F01-OS1.1]
                                                                                                     (2)         (b) [F02-OP1.2] [F82-OP1.1]                                             [F02,F04-OP1.2] [F01,F43-OP1.1]
                                                                                                                 (b) [F02-OS1.2] [F82-OS1.1]                                 (3)         [F01,F43-OS1.1]
                                                                                                     5.5.3.5. Ignition Sources                                                           [F01,F43-OP1.1]
                                                                                                     (1)         [F01-OS1.1] Applies to portion of Code text: “Smoking       (4)         [F43,F01-OS1.1]
                                                                                                                 shall not be permitted in a laboratory …”                   5.5.5.3. Compressed Gases
                                                                                                     (2)         (a) [F11-OS1.1]                                             (1)         [F02-OS1.2]
                                                                                                                 (a) [F11-OP1.1]                                                         [F02-OP1.2]
                                                                                                                 (b) [F01-OS1.1]                                             (2)         [F81-OS1.1]
                                                                                                     (3)         [F01,F02-OS1.1,OS1.2]                                                   [F81-OS3.4]
                                                                                                     5.5.3.6. Inspection and Maintenance                                     (3)         (a) [F81-OS1.1] [F12-OS1.1,OS1.2]
                                                                                                     (1)         [F82-OS1.1]                                                             (b) [F12-OS3.4]
                                                                                                                 [F82-OS3.4]                                                             (b) [F12-OP1.2]
                                                                                                                 [F82-OH5]                                                               (a) [F12-OP1.2]
                                                                                                                 [F82-OP1.1]                                                             (a) [F81,F12-OS3.4]
                                                                                                     (2)         [F02-OS1.2] [F82-OS1.1]                                                 (b) [F12-OS1.1,OS1.2]
                                                                                                                 [F02-OP1.2]                                                 (4)         [F43-OS1.1]
                                                                                                     5.5.4.1. General Ventilation                                                        [F43-OS3.4]
                                                                                                     (1)         (b) [F81,F82-OS1.1]                                         (5)         [F43-OS3.4]
                                                                                                     5.5.4.2. Power-Ventilated Enclosure                                                 [F43-OH5]
                                                                                                     (2)         [F02-OS1.2] Applies to portion of Code text: “A                         (b) [F11,F12,F13-OS3.4]
                                                                                                                 power-ventilated enclosure required in Sentence (1) shall
                                                                                                                 not be used for the storage of dangerous goods …”                       (b) [F11,F12,F13-OH5]
                                                                                                                 [F02-OP1.2] Applies to portion of Code text: “A             (6)         [F01,F02-OS1.1,OS1.2]
                                                                                                                 power-ventilated enclosure required in Sentence (1) shall               [F01,F02-OP1.1,OP1.2]
                                                                                                                 not be used for the storage of dangerous goods …”
                                                                                                                                                                             (7)         [F44-OS3.4]
                                                                                                     5.5.4.3. Enclosure Exhaust Ventilation
                                                                                                                                                                                         [F44-OH5]
                                                                                                     (2)         [F02-OS1.2]
                                                                                                                                                                                         [F01-OS1.1]
                                                                                                                 [F12-OP1.2]
                                                                                                                                                                                         [F01-OP1.1]
                                                                                                                 [F44-OS3.4]
                                                                                                                                                                             5.5.5.4. Refrigerated Storage
                                                                                                                 [F43-OH5]
                                                                                                                                                                             (2)         [F01,F43-OS1.1]
                                                                                                     (3)         (a) [F02-OS1.2] [F82-OS1.1]
                                                                                                                                                                             5.5.5.5. Dangerously Reactive Materials
                                                                                                                 (a) [F02-OP1.2] [F82-OP1.1]
                                                                                                                                                                             (1)         (b) [F81-OS1.1]
                                                                                                                                                                             (2)         [F01-OS1.1] [F02-OS1.2]
                                                                                                                                                                                         [F01-OP1.1] [F02-OP1.2]




                                                                                                    National Fire Code of Canada 2020                                                                                            Division B 5-23
                                                                                                    5.7.1.1.                                                                                                         Division B

                                                                                                                       Table 5.7.1.1. (Continued)                                       Table 5.7.1.1. (Continued)

                                                                                                     Provision          Functional Statements and Objectives (1)      Provision           Functional Statements and Objectives (1)
                                                                                                    5.5.5.6. Perchloric Acid                                          5.6.1.9. Building Services at Demolition Sites
                                                                                                    (1)          (b) [F81-OS1.1]                                      (1)         [F01,F43-OS1.1]
                                                                                                    (2)          [F01-OS1.1] [F02-OS1.2]                                          [F01,F43-OP1.1]
                                                                                                                 [F01-OP1.1] [F02-OP1.2]                                          [F32-OS3.3]
                                                                                                    (3)          [F01-OS1.1]                                          (2)         [F81-OS1.1,OS1.2]
                                                                                                    5.5.5.7. Chemical Wastes                                                      [F81-OP1.1,OP1.2]




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                                                                                                    (1)          (a) [F81-OS1.1]                                      (3)         [F32-OS3.4]
                                                                                                    5.6.1.2. Measures to Mitigate Fire Spread to Adjacent Buildings               [F01-OS1.1,OS1.2]
                                                                                                    (1)          [F02,F03-OP3.1]                                      5.6.1.10. Fuel Supply Installation
                                                                                                    5.6.1.4. Access for Firefighting                                  (1)         [F81,F43-OS1.1]
                                                                                                    (1)          [F12-OS1.2]                                          5.6.1.11. Tank, Piping and Machinery Reservoir Safety at
                                                                                                                                                                      Demolition Sites
                                                                                                                 [F12-OP1.2]
                                                                                                                                                                      (2)         [F01,F43-OS1.1] [F01-OS1.1]
                                                                                                    (2)          [F12-OS1.2,OS1.5]
                                                                                                                                                                      (3)         [F01,F81-OS1.1]
                                                                                                                 [F12-OP1.2]
                                                                                                                                                                      (4)         [F01,F43-OS1.1]
                                                                                                    (3)          [F12-OS1.2,OS1.5]
                                                                                                                                                                      5.6.1.12. Fire Separations in Partly Occupied Buildings
                                                                                                                 [F12-OP1.2]
                                                                                                                                                                      (1)         [F03-OS1.2]
                                                                                                    (4)          [F12-OS1.2,OS1.5]
                                                                                                                                                                                  [F03-OP1.2]
                                                                                                                 [F12-OP1.2]
                                                                                                                                                                      5.6.1.13. Protection during Shutdown
                                                                                                    (5)          [F12-OS1.2,OS1.5]
                                                                                                                                                                      (1)         [F12,F82-OS1.2]
                                                                                                                 [F12-OP1.2]
                                                                                                                                                                                  [F12,F82-OP1.2]
                                                                                                    5.6.1.5. Portable Extinguishers
                                                                                                                                                                                  [F02-OP3.1]
                                                                                                    (1)          [F12-OS1.2]
                                                                                                                                                                      (2)         [F02-OP1.2]
                                                                                                                 [F12-OP1.2]
                                                                                                                                                                                  [F02-OP3.1]
                                                                                                    (2)          [F02-OS1.2]
                                                                                                                                                                                  [F02-OS1.2,OS1.5]
                                                                                                                 [F02-OP1.2]
                                                                                                                                                                      5.6.1.14. Watch
                                                                                                    5.6.1.6. Standpipe Systems
                                                                                                                                                                      (1)         [F02-OS1.2,OS1.5]
                                                                                                    (1)          [F02,F12-OS1.2]
                                                                                                                                                                      (2)         [F02-OS1.5,OS1.2]
                                                                                                                 [F02,F12-OP1.2]
                                                                                                                                                                      (3)         [F13-OS1.5,OS1.2]
                                                                                                    (2)          [F02,F12-OS1.2]
                                                                                                                                                                      5.6.1.15. Smoking Restrictions
                                                                                                                 [F02,F12-OP1.2]
                                                                                                                                                                      (1)         [F01-OS1.1]
                                                                                                    (3)          [F12,F82-OS1.2]
                                                                                                                                                                      5.6.1.16. Provision for Egress
                                                                                                                 [F12,F82-OP1.2]
                                                                                                    5.6.1.7. Hot Surface Applications                                 (1)         [F10,F82-OS3.7]
                                                                                                                                                                      (2)         [F10,F82-OS3.7]
                                                                                                    (2)          [F01-OS1.1]
                                                                                                                                                                      5.6.1.17. Fire Warning
                                                                                                                 [F01-OP1.1]
                                                                                                    (3)          [F01-OS1.2]                                          (1)         [F11-OS1.5]
                                                                                                                                                                      5.6.1.19. Temporary Enclosures
                                                                                                                 [F01-OP1.2]
                                                                                                    5.6.1.8. Ignition Sources                                         (1)         [F01-OS1.1,OS1.2]

                                                                                                    (1)          [F01-OS1.1]                                          5.6.1.20. Disposal of Combustible Refuse

                                                                                                                 [F01-OP1.1]                                          (1)         [F02-OS1.1,OS1.2]

                                                                                                    (2)          [F01-OS1.1,OS1.2]                                                [F02-OP1.2]

                                                                                                                 [F01-OP1.1]




                                                                                                    5-24 Division B                                                                                 National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                          5.7.1.1.

                                                                                                                        Table 5.7.1.1. (Continued)                                                    Table 5.7.1.1. (Continued)

                                                                                                     Provision            Functional Statements and Objectives (1)               Provision             Functional Statements and Objectives (1)
                                                                                                     5.6.2.1. Services Shut-off                                                 (4)            [F12-OS1.2]
                                                                                                     (1)         [F01,F43,F81-OS1.1,OS1.2]                                                     [F10-OS1.5]
                                                                                                                 [F01,F43,F81-OP1.1,OP1.2]                                                     [F02-OP3.1]
                                                                                                                 [F32-OS3.3]                                                    (5)            [F12-OS1.2]
                                                                                                     (2)         [F81-OS1.1,OS1.2]                                                             [F10-OS1.5]
                                                                                                                 [F81-OP1.1,OP1.2]                                                             [F02-OP3.1]




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                                                                                                     5.6.2.2. Maintaining Existing Services                                     5.6.3.8. Site Security
                                                                                                     (1)         [F81-OS1.1,OS1.2]                                              (1)            [F34-OS1.1,OS1.2]
                                                                                                     5.6.3.2. Smoking Restrictions                                              (2)            [F34-OS1.1,OS1.2]
                                                                                                     (1)         [F01-OS1.1]                                                    (3)            [F34-OS1.1,OS1.2]
                                                                                                                 [F01-OP1.1]                                                    (4)            [F12-OS1.1,OS1.2]
                                                                                                                 (a),(d) [F01,F03-OS1.1,OS1.2]                                  5.6.4.2. Standpipe Installation
                                                                                                                 (a),(d) [F01,F03-OP1.1,OP1.2]                                  (1)            [F02,F12-OS1.2]
                                                                                                     5.6.3.3. Site Identification                                                              [F02,F12-OP1.2]
                                                                                                     (1)         [F12-OS1.2]                                                    (2)            [F02,F12-OS1.2]
                                                                                                                 [F12-OP1.2]                                                                   [F02,F12-OP1.2]
                                                                                                     (2)         [F12-OP3.1]                                                    (3)            [F02,F12-OS1.2]
                                                                                                     5.6.3.4. Disposal of Combustible Refuse                                                   [F02,F12-OP1.2]
                                                                                                     (1)         [F03,F12-OS1.2] [F05,F10-OS1.5] Applies to portion of          (4)            [F02,F12-OS1.2]
                                                                                                                 Code text: “... between exits ... and containers used for                     [F02,F12-OP1.2]
                                                                                                                 the disposal of combustible refuse ...”
                                                                                                                                                                                5.6.4.3. Protective Encapsulation
                                                                                                                 [F03-OS1.2] Applies to portion of Code text: “... between
                                                                                                                 ... any portion of the building and containers used for the    (1)            [F02-OS1.2]
                                                                                                                 disposal of combustible refuse ...”                                           [F02-OP1.2]
                                                                                                                 [F03-OP3.1] Applies to portion of Code text: “... between                     [F02-OP3.1]
                                                                                                                 ... any portion of the building and containers used for the
                                                                                                                 disposal of combustible refuse ...”
                                                                                                                                                                               Notes to Table 5.7.1.1.:
                                                                                                     (2)         [F01,F03-OS1.2]                                               (1)    See Parts 2 and 3 of Division A.
                                                                                                                 [F01,F03-OP1.2]
                                                                                                     5.6.3.5. Water Supply
                                                                                                     (1)         [F02-OP3.1]
                                                                                                                 [F02-OP1.2]
                                                                                                                 [F02-OS1.2]
                                                                                                     5.6.3.6. Hydrant Access
                                                                                                     (1)         [F02-OP3.1]
                                                                                                                 [F02-OP1.2]
                                                                                                                 [F02-OS1.2]
                                                                                                     5.6.3.7. Construction Access
                                                                                                     (1)         [F10,F12-OS1.2] [F02-OS1.5]
                                                                                                                 [F30-OS3.1]
                                                                                                                 [F02,F12-OP1.2]
                                                                                                     (2)         [F10,F12-OS1.2] [F02,F12-OS1.5]
                                                                                                                 [F02,F12-OP1.2]
                                                                                                     (3)         [F10,F12-OS1.2]




                                                                                                    National Fire Code of Canada 2020                                                                                                 Division B 5-25
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5-26 Division B




National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Notes to Part 5
                                                                                                    Hazardous Processes and Operations




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                                                                                                    A-5.1.2.1.(1) In addition to the general requirements of CSA C22.1, “Canadian Electrical Code, Part I,”
                                                                                                    special attention must be given to Sections 18, 20 and 22: Section 18 specifies wiring requirements for Class
                                                                                                    I, II and III hazardous locations; Section 20 provides specific requirements for areas where flammable or
                                                                                                    combustible liquids are stored or dispensed; Section 22 specifies wiring requirements for areas where corrosive
                                                                                                    liquids or vapours or excessive moisture are present.

                                                                                                    A-5.2.3.1.(2)(c)(ii) As a result of roofing operations, sparks and open flames can ignite combustible
                                                                                                    material in areas that are hidden from plain view, such as concealed spaces in roofs. A comprehensive
                                                                                                    inspection should include visual inspection of concealed spaces, building equipment, storage arrangements,
                                                                                                    and combustible refuse within the hot work area and exposed areas adjacent to the hot work area. Equipment
                                                                                                    such as thermal scanners or infrared thermometers can be used to take temperature readings in areas where
                                                                                                    visual inspection is impeded by obstructions.

                                                                                                    A-5.2.3.3.(1) In areas where the visual inspection of combustible materials is impeded by obstructions,
                                                                                                    thermal scanners or infrared thermometers can be used to take temperature readings during or after the
                                                                                                    completion of roofing operations.

                                                                                                    A-5.2.3.4.(1)(b) The following documents are examples of good engineering practice as regards safety
                                                                                                    measures for the activities described in Clause 5.2.3.4.(1)(b):
                                                                                                      • API RP 2009, “Safe Welding, Cutting and Hot Work Practices in the Petroleum and Petrochemical
                                                                                                        Industries,”
                                                                                                      • API 2015, “Requirements for Safe Entry and Cleaning of Petroleum Storage Tanks, Planning and
                                                                                                        Managing Tank Entry From Decommissioning Through Recommissioning,”
                                                                                                      • API RP 2201, “Safe Hot Tapping Practices in the Petroleum and Petrochemical Industries,” and
                                                                                                      • API RP 2207, “Preparing Tank Bottoms for Hot Work.”

                                                                                                    A-5.3.1.3.(2) NFPA standards on dust explosions include:
                                                                                                      • NFPA 61, “Standard for the Prevention of Fires and Dust Explosions in Agricultural and Food Processing
                                                                                                        Facilities,”
                                                                                                      • NFPA 91, “Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Particulate
                                                                                                        Solids,”
                                                                                                      • NFPA 120, “Standard for Fire Prevention and Control in Coal Mines,”
                                                                                                      • NFPA 484, “Standard for Combustible Metals,”
                                                                                                      • NFPA 654, “Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing,
                                                                                                        and Handling of Combustible Particulate Solids,”
                                                                                                      • NFPA 655, “Standard for Prevention of Sulfur Fires and Explosions,” and
                                                                                                      • NFPA 664, “Standard for the Prevention of Fires and Explosions in Wood Processing and Woodworking
                                                                                                        Facilities.”

                                                                                                    A-5.3.3.2.(2) A conveyor belt having a surface resistivity of less than 300 megaohms is considered to
                                                                                                    provide protection against electrostatic charge accumulation in a grain handling facility.

                                                                                                    These Notes are included for explanatory purposes only and do not form part of the requirements. The number
                                                                                                    that introduces each Note corresponds to the applicable requirement in this Part.


                                                                                                    National Fire Code of Canada 2020                                                                             Division B 5-27
                                                                                                    A-5.5.1.1.(1)                                                                                     Division B

                                                                                                    A-5.5.1.1.(1) The provisions in Section 5.5. apply only to laboratory operations involving the use of
                                                                                                    dangerous goods, including flammable or combustible liquids. They do not apply to the incidental use of
                                                                                                    such substances or to their use for maintenance or cleaning purposes only, in which case, requirements in
                                                                                                    other Sections of the Code would apply.

                                                                                                    A-5.5.3.4.(1) “Electrical equipment” refers to anything—any apparatus, appliance, device, instrument,
                                                                                                    fitting, fixture, luminaire, machinery, material, etc.—used in or for, or capable of being used in or for, the
                                                                                                    generation, transformation, transmission, distribution, supply, or utilization of electricity. Electrical equipment
                                                                                                    manufactured on site must conform to CAN/CSA-C22.2 No. 61010-1, “Safety Requirements for electrical
                                                                                                    equipment for measurement, control, and laboratory use - Part 1: General requirements (Tri-national standard,
                                                                                                    with UL 61010-1 and ANSI/ISA-61010-1 (82.02.01),” as stipulated in CSA C22.1, “Canadian Electrical Code,




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                                                                                                    Part I.”

                                                                                                    A-5.5.5.1.(1) The intent of Sentence 5.5.5.1.(1) is to limit the quantities of dangerous goods that are
                                                                                                     (a) stored outside of storage areas and cabinets referred to in Sentences 5.5.5.1.(2) and (3),
                                                                                                     (b) kept in the laboratory on a permanent or semi-permanent basis, e.g. dangerous goods that are normally
                                                                                                         kept out overnight because they are frequently needed, and
                                                                                                     (c) connected to equipment and/or devices required to conduct an experiment in the laboratory.
                                                                                                    The intent is also to limit the quantities of dangerous goods that are actually “in use” during normal operations
                                                                                                    and those used for special experiments or processes, which may require that greater quantities be brought into
                                                                                                    the laboratory for the duration of these operations.
                                                                                                    However, the quantities of dangerous goods in a laboratory should be limited to the quantities allowed in a
                                                                                                    single fire compartment as stated in Part 3, on the basis that they present at least the same level of risk whether
                                                                                                    they are stored or connected to equipment, i.e. “in use” during normal operations.

                                                                                                    A-5.5.5.3.(5)(b) and (7)(b) NFPA 55, “Compressed Gases and Cryogenic Fluids Code,” is an example of
                                                                                                    good engineering practice for the design of a treatment system referred to in Clauses 5.5.5.3.(5)(b) and (7)(b).

                                                                                                    A-5.5.5.5. For the purposes of this Code, unstable dangerous goods are determined to be dangerously
                                                                                                    reactive materials based on their reactive properties. Dangerously reactive materials, such as perchloric
                                                                                                    acid, include various classes of unstable or reactive dangerous goods, such as flammable solids, pyrophoric
                                                                                                    materials, oxidizers, corrosives, water-reactive substances and organic peroxides.

                                                                                                    A-5.5.5.5.(2) Water can only be used with water-compatible dangerously reactive materials. Refer to the
                                                                                                    Safety Data Sheet for guidance on all the properties and incompatibilities of the reactive material being used.

                                                                                                    A-5.5.5.6. Perchloric acid is the most commonly used unstable substance in laboratories. Although
                                                                                                    Article 5.5.5.6. deals specifically with perchloric acid, it is intended to also apply to other highly unstable
                                                                                                    substances having similar properties to perchloric acid, such as hydrazine, peracetic acid, picric acid and
                                                                                                    sodium hydride. Unstable substances are capable of a rapid release of energy by themselves. They are
                                                                                                    susceptible to reactions when exposed to air, water, pressure, heat, shock, vibration, light or sound waves. These
                                                                                                    reactions include vigorous polymerization or self-accelerating decomposition.
                                                                                                    These substances must be stored, handled, used and processed in a location and manner that will prevent an
                                                                                                    undesired reaction. Safety Data Sheets provide guidance based on the properties of the unstable substance.

                                                                                                    A-5.5.5.6.(2) Water can only be used if the unstable substance is compatible. (Perchloric acid is an example
                                                                                                    of a substance that is compatible with water.) Safety Data Sheets indicate whether an unstable substance is
                                                                                                    compatible with water and provide guidance on the properties and other incompatibilities of the unstable
                                                                                                    substance.

                                                                                                    A-5.6.1.1. The degree of application of Section 5.6. should be determined in advance in conjunction with the
                                                                                                    authority having jurisdiction. In construction, alteration or demolition operations that do not pose an exposure
                                                                                                    hazard to other buildings or to occupants, the degree of application of Section 5.6. may be minimal.
                                                                                                    The degree of application of Section 5.6. to each operation should be determined in advance, as part of the fire
                                                                                                    safety plan for the operation, taking into consideration such issues as the size of the operation, exposure of
                                                                                                    adjacent buildings or facilities to hazards, and the site conditions. Operations can range from large multi-storey
                                                                                                    buildings to small single-storey residences and may include additions or alterations to existing buildings.


                                                                                                    5-28 Division B                                                                      National Fire Code of Canada 2020
                                                                                                    Division B                                                                                    A-5.6.4.3.(1)

                                                                                                    A-5.6.1.2.(1) Methods and materials used to mitigate fire spread to adjacent buildings and facilities that
                                                                                                    are deemed necessary following a risk assessment can range from active to passive systems such as spatial
                                                                                                    separation, installing water curtains, using construction methods and materials that include gypsum sheathing,
                                                                                                    or erecting a temporary fire barrier such as a fire tarpaulin. Materials that may become part of the finished
                                                                                                    building must conform to the NBC.

                                                                                                    A-5.6.1.4.(4) The fire safety plan for the construction or demolition site of buildings conforming to Article
                                                                                                    3.2.2.51. or 3.2.2.60. of Division B of the NBC should take into consideration the design of the access route to the
                                                                                                    building under construction as well as the elevation of the access route relative to the uppermost floor level to
                                                                                                    facilitate firefighter access to the roof. (See Sentence 3.2.5.6.(2) of Division B of the NBC.)




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                                                                                                    A-5.6.1.5.(2)(a)      Moveable equipment includes, but is not limited to, cutting and welding equipment.

                                                                                                    A-5.6.1.6. Not all aspects of Subsection 3.2.5. of Division B of the NBC are applicable to unoccupied areas of
                                                                                                    buildings, parts of buildings, facilities and associated areas undergoing construction, alteration or demolition
                                                                                                    operations.
                                                                                                    When the temperature causes freezing conditions, the standpipe should be drained to prevent damage to
                                                                                                    the equipment. It is not expected that hoses and nozzles be made available in the building undergoing
                                                                                                    construction, alteration or demolition operations, as they will be brought to the relevant floor by the responding
                                                                                                    fire department.

                                                                                                    A-5.6.1.8. Minimum clearances shown on certified heating equipment or as described in Part 6 of Division B
                                                                                                    of the NBC should be provided between combustible materials and temporary heating equipment, including
                                                                                                    flues such as exhaust discharges from internal combustion engines.

                                                                                                    A-5.6.1.9.(1) A safe area for the location of terminated building services, such as gas and fuel lines, electrical
                                                                                                    lines, and water and steam piping, is in an area away from the building or part thereof that is safe enough
                                                                                                    so as not to cause damage to the building or part thereof in the event of their accidental breakage. In some
                                                                                                    cases, terminated services can be located directly outside the building or part thereof if adequate protection is
                                                                                                    provided, and in others, they can be located at the property line and/or service connection.

                                                                                                    A-5.6.1.11.(4) Guidance on methods of rendering inert tanks, piping and machinery reservoirs is available
                                                                                                    in NFPA 326, “Standard for the Safeguarding of Tanks and Containers for Entry, Cleaning, or Repair.”

                                                                                                    A-5.6.3.2.(1) Note that the intent of Sentence 5.6.3.2.(1) in relation to the alteration of a floor, suite or
                                                                                                    room in an existing building is not to prevent smoking elsewhere in the building where smoking would
                                                                                                    normally be permitted.

                                                                                                    A-5.6.3.5.(1) The water supply referred to in Sentence 5.6.3.5.(1) may be either natural or developed, and
                                                                                                    need not be the final water supply for the finished building.

                                                                                                    A-5.6.3.7.(3) to (5) It is recognized that, during the construction of a building, one stairway might be out of
                                                                                                    service at any given time to allow the further construction of the stairway or to accommodate other construction
                                                                                                    activities. However, this out-of-service period should be kept as short as possible to ensure that workers have
                                                                                                    two options for evacuation and that emergency responders have two means of access to each floor.
                                                                                                    Note that the stairways required by Sentence 5.6.3.7.(3) could be temporary ones, which would, nevertheless,
                                                                                                    still need to be separated from the remainder of the storey by an assembly that will provide protection from fire
                                                                                                    for a minimum of 30 min. Furthermore, doors must be operable, but should be kept in the closed position at all
                                                                                                    times, unless they need to be kept open temporarily for operational reasons. Fusible-links or other acceptable
                                                                                                    means can be used to ensure that doors close automatically.

                                                                                                    A-5.6.4.3.(1) The extent to which the structure under construction may need to be protected in accordance
                                                                                                    with Sentence 5.6.4.3.(1) may vary based on the fire safety plan. The protective encapsulation material or
                                                                                                    assembly of materials is intended to limit the potential for fire spread within the storey as well as to limit the
                                                                                                    potential for fire spread to upper storeys, thereby also limiting the potential exposure of adjacent structures
                                                                                                    to fire.


                                                                                                    National Fire Code of Canada 2020                                                                     Division B 5-29
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5-30 Division B




National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Part 6
                                                                                                    Fire Protection Equipment




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                                                                                                      6.1.          General
                                                                                                      6.1.1.        General .............................................. 6-1

                                                                                                      6.2.          Portable Extinguishers
                                                                                                      6.2.1.        General .............................................. 6-1

                                                                                                      6.3.          Fire Alarm and Voice
                                                                                                                    Communication Systems
                                                                                                      6.3.1.        General .............................................. 6-1

                                                                                                      6.4.          Water-Based Fire
                                                                                                                    Protection Systems
                                                                                                      6.4.1.        General .............................................. 6-2

                                                                                                      6.5.          Emergency Power
                                                                                                                    Systems, Unit Equipment
                                                                                                                    for Emergency Lighting,
                                                                                                                    and Exit Signs
                                                                                                      6.5.1.        General .............................................. 6-2

                                                                                                      6.6.          Special Fire Suppression
                                                                                                                    Systems
                                                                                                      6.6.1.        General .............................................. 6-4

                                                                                                      6.7.          Smoke Alarms and
                                                                                                                    Carbon Monoxide Alarms
                                                                                                      6.7.1.        General .............................................. 6-4

                                                                                                      6.8.          Integrated Fire
                                                                                                                    Protection and Life
                                                                                                                    Safety Systems
                                                                                                      6.8.1.        General .............................................. 6-4

                                                                                                      6.9.          Objectives and
                                                                                                                    Functional Statements
                                                                                                      6.9.1.        Objectives and Functional
                                                                                                                    Statements ........................................ 6-4

                                                                                                                    Notes to Part 6 .................. 6-7




                                                                                                    National Fire Code of Canada 2020
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National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Part 6
                                                                                                    Fire Protection Equipment




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                                                                                                    Section 6.1. General
                                                                                                    6.1.1.            General
                                                                                                    6.1.1.1.          Application
                                                                                                                         1) This Part includes requirements for the inspection, testing, maintenance, and
                                                                                                                      operation of portable extinguishers, water-based fire protection systems, special
                                                                                                                      extinguishing systems, fire alarm systems, emergency electrical power supply systems,
                                                                                                                      emergency lighting, and exit signs.

                                                                                                    6.1.1.2.          Maintenance
                                                                                                                        1) Fire protection installations shall be maintained in operating condition. (See
                                                                                                                      Note A-6.1.1.2.(1).)

                                                                                                    6.1.1.3.          Notification
                                                                                                                         1) Where tests, repairs or alterations are made to fire protection installations,
                                                                                                                      including sprinkler and standpipe systems, a procedure of notification shall be
                                                                                                                      established. (See Note A-6.1.1.3.(1).)

                                                                                                    6.1.1.4.          Protection during Shutdown
                                                                                                                         1) When any portion of a fire protection system is temporarily shut down,
                                                                                                                      alternative measures shall be taken to ensure that protection is maintained. (See
                                                                                                                      Note A-6.1.1.4.(1).)


                                                                                                    Section 6.2. Portable Extinguishers
                                                                                                    6.2.1.            General
                                                                                                    6.2.1.1.          Inspection, Testing and Maintenance
                                                                                                                         1) Portable extinguishers shall be inspected, tested and maintained in conformance
                                                                                                                      with NFPA 10, “Standard for Portable Fire Extinguishers.”


                                                                                                    Section 6.3. Fire Alarm and Voice Communication
                                                                                                    Systems
                                                                                                    6.3.1.            General
                                                                                                    6.3.1.1.          Maintenance
                                                                                                                         1) Fire alarm and voice communication systems shall be maintained in operable
                                                                                                                      condition at all times.


                                                                                                    National Fire Code of Canada 2020                                                                        Division B 6-1
                                                                                                    6.3.1.2.                                                                                           Division B

                                                                                                    6.3.1.2.         Inspection and Testing
                                                                                                                       1) Fire alarm systems shall be inspected and tested in conformance with
                                                                                                                     CAN/ULC-S536, “Standard for Inspection and Testing of Fire Alarm Systems.”
                                                                                                                         2) Fire alarm and detection system components shall be accessible for purposes
                                                                                                                     of inspection or maintenance.

                                                                                                    6.3.1.3.         Central Stations and Their Fire Protection Signalling Systems
                                                                                                                        1) Central stations, including their fire protection signalling systems, shall be
                                                                                                                     maintained in conformance with CAN/ULC-S561, “Standard for Installation and




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                                                                                                                     Services for Fire Signal Receiving Centres and Systems.” (See Note A-6.3.1.3.(1).)

                                                                                                    6.3.1.4.         Voice Communication Systems
                                                                                                                        1) Voice communication systems that are integrated with a required fire alarm
                                                                                                                     system shall be tested in conformance with Article 6.3.1.2.
                                                                                                                        2) Voice communication or public address systems that are part of the building
                                                                                                                     evacuation plan and are not electrically supervised shall be tested at intervals
                                                                                                                     not greater than one month in conformance with Sentences (3) and (4). (See
                                                                                                                     Note A-6.3.1.4.(2).)
                                                                                                                        3) Loudspeakers operated from the central alarm and control facility shall be
                                                                                                                     tested to ensure they can be heard in all parts of the building.
                                                                                                                        4) The 2-way communication system from each floor area to the central alarm and
                                                                                                                     control facility shall be tested to ensure proper operation.


                                                                                                    Section 6.4. Water-Based Fire Protection Systems
                                                                                                    6.4.1.           General
                                                                                                    6.4.1.1.         Inspection, Testing and Maintenance
                                                                                                                        1) Water-based fire protection systems shall be inspected, tested and maintained
                                                                                                                     in conformance with NFPA 25, “Standard for the Inspection, Testing, and Maintenance
                                                                                                                     of Water-Based Fire Protection Systems.” (See Note A-6.4.1.1.(1).)


                                                                                                    Section 6.5. Emergency Power Systems, Unit
                                                                                                    Equipment for Emergency Lighting, and Exit Signs
                                                                                                    6.5.1.           General
                                                                                                    6.5.1.1.         Inspection, Testing and Maintenance
                                                                                                                        1) Except as provided in Articles 6.5.1.2. to 6.5.1.5., emergency power systems
                                                                                                                     shall be inspected, tested and maintained in conformance with CSA C282, “Emergency
                                                                                                                     electrical power supply for buildings.”
                                                                                                                        2) An emergency electrical power supply system for emergency equipment for
                                                                                                                     healthcare facilities shall be inspected, tested and maintained in conformance with
                                                                                                                     CSA Z32, “Electrical safety and essential electrical systems in health care facilities.”
                                                                                                                     (See Note A-6.5.1.1.(2).)

                                                                                                    6.5.1.2.         Notification
                                                                                                                        1) When an emergency power system or any part thereof is shut down, the
                                                                                                                     supervisory staff shall be notified in conformance with Section 2.8.


                                                                                                    6-2 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                              6.5.1.8.

                                                                                                    6.5.1.3.          Instructions

                                                                                                                         1) Where an emergency power system is installed, instructions shall be provided
                                                                                                                      for switching on essential loads and for starting the generator when this is not done
                                                                                                                      automatically.

                                                                                                    6.5.1.4.          Records

                                                                                                                         1) Written records shall be maintained as required in CSA C282, “Emergency
                                                                                                                      electrical power supply for buildings.”

                                                                                                    6.5.1.5.          Supply of Fresh Fuel




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                                                                                                                         1) Liquid fuel storage tanks shall be drained and refilled with fresh fuel at intervals
                                                                                                                      not greater than 12 months. (See Note A-6.5.1.5.(1).)

                                                                                                    6.5.1.6.          Inspection of Unit Equipment

                                                                                                                         1) Self-contained emergency lighting unit equipment shall be inspected at
                                                                                                                      intervals not greater than one month to ensure that
                                                                                                                          a) pilot lights are functioning and not obviously damaged or obstructed,
                                                                                                                          b) the terminal connections are clean, free of corrosion and lubricated when
                                                                                                                             necessary,
                                                                                                                          c) the terminal clamps are clean and tight as per manufacturer's specifications,
                                                                                                                             and
                                                                                                                          d) the battery surface is kept clean and dry.

                                                                                                                         2) Self-contained emergency lighting unit equipment shall be tested
                                                                                                                         a) at intervals not greater than one month to ensure that the emergency lights
                                                                                                                            will function upon failure of the primary power supply, and
                                                                                                                         b) at intervals not greater than 12 months to ensure that the unit will provide
                                                                                                                            emergency lighting for a duration equal to the design criterion under
                                                                                                                            simulated power failure conditions.

                                                                                                                         3) After completion of the test required in Clause (2)(b), the charging conditions
                                                                                                                      for voltage and current and the recovery period shall be tested to ensure that the
                                                                                                                      charging system is functioning in accordance with the manufacturer's specifications.

                                                                                                    6.5.1.7.          Inspection of Emergency Lights

                                                                                                                         1) Except as provided in Article 6.5.1.6., emergency lights shall be inspected at
                                                                                                                      intervals not greater than 12 months to ensure that they are functional.

                                                                                                    6.5.1.8.          Inspection of Exit Signs
                                                                                                                      (See Note A-6.5.1.8.)

                                                                                                                         1) Except as provided in Sentence (2), exit signs shall be inspected at intervals not
                                                                                                                      greater than 12 months to ensure that the exit signs will be visible upon failure of the
                                                                                                                      primary power supply.

                                                                                                                         2) Exit signs provided with a battery back-up shall be inspected at intervals
                                                                                                                         a) not greater than one month to ensure the exit signs will be visible upon
                                                                                                                            failure of the primary power supply, and
                                                                                                                         b) not greater than 12 months to ensure the exit signs will be visible for a
                                                                                                                            duration equal to the design criterion upon failure of the primary power
                                                                                                                            supply.




                                                                                                    National Fire Code of Canada 2020                                                                      Division B 6-3
                                                                                                    6.6.1.1.                                                                                          Division B

                                                                                                    Section 6.6. Special Fire Suppression Systems
                                                                                                    6.6.1.           General

                                                                                                    6.6.1.1.         Testing, Inspection and Maintenance

                                                                                                                        1) A special fire suppression system that meets the description given in any one of
                                                                                                                     the standards referenced in Article 2.1.3.5. shall be tested, inspected and maintained in
                                                                                                                     conformance with the appropriate requirements of that standard.




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                                                                                                    Section 6.7. Smoke Alarms and Carbon Monoxide
                                                                                                    Alarms
                                                                                                    6.7.1.           General

                                                                                                    6.7.1.1.         Inspection, Testing and Maintenance

                                                                                                                       1) Smoke alarms shall be inspected, tested and maintained in conformance with
                                                                                                                     CAN/ULC-S552, “Standard for Maintenance and Testing of Smoke Alarms.”

                                                                                                                        2) Carbon monoxide alarms shall be inspected, tested and maintained in
                                                                                                                     conformance with the manufacturer's instructions.

                                                                                                                        3) Residential fire warning systems shall be inspected, tested and maintained in
                                                                                                                     conformance with CAN/ULC-S540, “Standard for Residential Fire and Life Safety
                                                                                                                     Warning Systems: Installation, Inspection, Testing and Maintenance.”

                                                                                                                        4) A record shall be kept of all testing of smoke alarms, carbon monoxide alarms
                                                                                                                     and residential fire warning systems installed in hotels and motels and shall be
                                                                                                                     retained in conformance with Article 2.2.1.2. of Division C.


                                                                                                    Section 6.8. Integrated Fire Protection and Life
                                                                                                    Safety Systems
                                                                                                    6.8.1.           General

                                                                                                    6.8.1.1.         Testing and Maintenance

                                                                                                                        1) Interconnections between fire protection and life safety systems shall be tested
                                                                                                                     and maintained in conformance with CAN/ULC-S1001, “Standard for Integrated
                                                                                                                     Systems Testing of Fire Protection and Life Safety Systems.” (See Note A-6.8.1.1.(1).)


                                                                                                    Section 6.9. Objectives and Functional Statements
                                                                                                    6.9.1.           Objectives and Functional Statements

                                                                                                    6.9.1.1.         Attribution to Acceptable Solutions

                                                                                                                         1) For the purposes of compliance with this Code as required in
                                                                                                                     Clause 1.2.1.1.(1)(b) of Division A, the objectives and functional statements attributed
                                                                                                                     to the acceptable solutions in this Part shall be the objectives and functional statements
                                                                                                                     listed in Table 6.9.1.1. (See Note A-1.1.2.1.(1).)


                                                                                                    6-4 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                                   6.9.1.1.

                                                                                                                          Table 6.9.1.1.                                                       Table 6.9.1.1. (Continued)
                                                                                                      Objectives and Functional Statements Attributed to the
                                                                                                                  Acceptable Solutions in Part 6                          Provision             Functional Statements and Objectives (1)
                                                                                                                Forming Part of Sentence 6.9.1.1.(1)
                                                                                                                                                                         6.5.1.3. Instructions
                                                                                                     Provision               Functional Statements and Objectives (1)    (1)            [F12-OP1.2]
                                                                                                     6.1.1.2. Maintenance                                                               [F12-OS1.2,OS1.5]
                                                                                                     (1)         [F82-OP1.2]                                                            [F12-OP3.1]
                                                                                                                 [F82-OP3.1]                                                            [F12-OS3.1,OS3.7]
                                                                                                                 [F82-OS1.2,OS1.5]                                       6.5.1.5. Supply of Fresh Fuel




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                                                                                                     6.1.1.3. Notification                                               (1)            [F82-OP1.2]
                                                                                                     (1)         [F11,F13-OP1.2]                                                        [F82-OS1.2,OS1.5]
                                                                                                                 [F11,F13-OP3.1]                                                        [F82-OP3.1]
                                                                                                                 [F11,F13-OS1.2,OS1.5]                                                  [F82-OS3.1,OS3.7]
                                                                                                     6.1.1.4. Protection during Shutdown                                 6.5.1.6. Inspection of Unit Equipment
                                                                                                     (1)         [F02-OP1.2]                                             (1)            [F82-OS3.1,OS3.7]
                                                                                                                 [F02-OP3.1]                                             (2)            [F82-OS3.1,OS3.7]
                                                                                                                 [F02-OS1.2,OS1.5]                                       (3)            [F82-OS3.1,OS3.7]
                                                                                                     6.2.1.1. Inspection, Testing and Maintenance                        6.5.1.7. Inspection of Emergency Lights
                                                                                                     (1)         [F82-OS3.1,OS3.2,OS3.3,OS3.4]                           (1)            [F82-OS3.1,OS3.7]
                                                                                                                 [F82-OP1.2]                                             6.5.1.8. Inspection of Exit Signs
                                                                                                                 [F82-OS1.2]                                             (1)            [F82-OS3.1,OS3.7]
                                                                                                     6.3.1.1. Maintenance                                                (2)            [F82-OS3.1,OS3.7]
                                                                                                     (1)         [F02,F12-OS1.5,OS1.2]                                   6.6.1.1. Testing, Inspection and Maintenance
                                                                                                     6.3.1.2. Inspection and Testing                                     (1)            [F82-OS1.2]
                                                                                                     (1)         [F82-OS1.5,OS1.2]                                                      [F82-OP1.2]
                                                                                                     (2)         [F82-OS1.5,OS1.2]                                       6.7.1.1. Inspection, Testing and Maintenance
                                                                                                     6.3.1.3. Central Stations and Their Fire Protection Signalling      (1)            [F82-OS1.5,OS1.4]
                                                                                                     Systems                                                             (2)            [F82-OS1.5,OS1.4]
                                                                                                     (1)         [F82-OS1.2,OS1.5]                                       (3)            [F82-OS1.5,OS1.4]
                                                                                                     6.3.1.4. Voice Communication Systems                                6.8.1.1. Testing and Maintenance
                                                                                                     (2)         [F82-OS1.2,OS1.5]                                       (1)            [F02,F81,F82-OS1.2,OS1.5]
                                                                                                     (3)         [F82-OS1.2,OS1.5]                                                      [F02,F81,F82-OP1.2]
                                                                                                     (4)         [F82-OS1.2,OS1.5]
                                                                                                     6.4.1.1. Inspection, Testing and Maintenance                       Notes to Table 6.9.1.1.:
                                                                                                                                                                        (1)    See Parts 2 and 3 of Division A.
                                                                                                     (1)         [F82-OS1.2]
                                                                                                                 [F82-OP1.2]
                                                                                                                 [F82-OS3.1,OS3.2,OS3.3,OS3.4]
                                                                                                     6.5.1.1. Inspection, Testing and Maintenance
                                                                                                     (1)         [F82-OP1.2]
                                                                                                                 [F82-OP3.1]
                                                                                                                 [F82-OS3.1,OS3.7]
                                                                                                                 [F82-OS1.2,OS1.5]
                                                                                                     (2)         [F82-OS1.2,OS1.5]
                                                                                                                 [F82-OP1.2]




                                                                                                    National Fire Code of Canada 2020                                                                                           Division B 6-5
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6-6 Division B




National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Notes to Part 6
                                                                                                    Fire Protection Equipment




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                                                                                                    A-6.1.1.2.(1) Both the NBC and the NFC assume that all fire protection systems in a building, whether
                                                                                                    required by Code or voluntarily installed, will be designed in conformance with good fire protection
                                                                                                    engineering practice and will meet the appropriate installation requirements in relevant standards. Such good
                                                                                                    design is necessary to ensure that the level of safety established by the Code requirements is not reduced by a
                                                                                                    voluntary installation. Thus, a voluntarily installed system should be maintained in operating condition, at
                                                                                                    least to the extent that it was originally intended to function, in conformance with the applicable installation
                                                                                                    standards.

                                                                                                    A-6.1.1.3.(1) Notification of planned or emergency interruption or curtailment of service of fire protection
                                                                                                    installations is preferably given in advance when possible. The parties to be notified who could be affected
                                                                                                    may include, but are not necessarily limited to, the fire department, supervisory staff in the building and
                                                                                                    the occupants of the building.

                                                                                                    A-6.1.1.4.(1) Interruption of normal operation of a fire protection system for any purpose constitutes a
                                                                                                    “temporary shutdown.” Types of interruptions include, but are not limited to, periodic inspection or testing,
                                                                                                    maintenance, and repairs. During a shutdown, alternative measures are necessary to ensure that the level of
                                                                                                    safety intended by the Code is maintained.
                                                                                                    In the shutdown of a fire alarm system, alternative measures should be worked out in cooperation with the
                                                                                                    fire department to ensure that all persons in the building can be promptly informed, and the fire department
                                                                                                    notified, should a fire occur while the alarm system is out of service.
                                                                                                    When a sprinkler system is shut down, measures that can be taken include the provision of: emergency hose
                                                                                                    lines and portable extinguishers, extra fire watch service and, where practicable, temporary water connections
                                                                                                    to the sprinkler system.

                                                                                                    A-6.3.1.3.(1) CAN/ULC-S561, “Standard for Installation and Services for Fire Signal Receiving Centres
                                                                                                    and Systems,” provides for regular testing and review of the central station facilities and of the connections to
                                                                                                    the premises containing the fire alarm system. The Code does not mandate a particular series of events from
                                                                                                    initiation of the fire alarm signal circuits in the building to notification of the fire department. In some cases, the
                                                                                                    signals to the central station are automatically forwarded to the fire department, whereas in others, the central
                                                                                                    station initiates the notification of the fire department.

                                                                                                    A-6.3.1.4.(2) Sentence 6.3.1.4.(2) is intended to ensure that a voice communication system that is not
                                                                                                    tested as part of an associated fire alarm system, but that will be relied upon during a fire emergency, will
                                                                                                    be tested periodically.

                                                                                                    A-6.4.1.1.(1) Water-based fire protection systems include sprinkler systems, standpipes, private hydrants,
                                                                                                    hose systems, water spray fixed systems, foam-water sprinkler systems, foam-water spray systems, and fire
                                                                                                    pumps.

                                                                                                    These Notes are included for explanatory purposes only and do not form part of the requirements. The number
                                                                                                    that introduces each Note corresponds to the applicable requirement in this Part.




                                                                                                    National Fire Code of Canada 2020                                                                             Division B 6-7
                                                                                                    A-6.5.1.1.(2)                                                                                   Division B

                                                                                                    A-6.5.1.1.(2) CSA Z32, “Electrical safety and essential electrical systems in health care facilities,” contains
                                                                                                    requirements over and above those relating specifically to the inspection, testing and maintenance of emergency
                                                                                                    equipment: compliance with these other requirements is not intended by the reference in Sentence 6.5.1.1.(2).
                                                                                                    The standard defines three classes of healthcare facilities—Class A, Class B, and Class C—but applies only to
                                                                                                    Class A and Class C facilities. Class B facilities, which accommodate people who, as a result of physical or
                                                                                                    mental disabilities, are unable to function independently and need daily care by healthcare professionals, are
                                                                                                    covered by CSA C282, “Emergency electrical power supply for buildings.”

                                                                                                    A-6.5.1.5.(1) Compliance with Sentence 6.5.1.5.(1) can be achieved by replenishment as the result of the
                                                                                                    routine test program required by Article 6.5.1.1.




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                                                                                                    A-6.5.1.8. Exit signs are to be visible by being unobstructed, illuminated and readily identifiable as
                                                                                                    indicating the location of the means of egress.

                                                                                                    A-6.8.1.1.(1) Building owners must ensure that fire protection and life safety systems and their components
                                                                                                    (i.e. fire alarm systems, sprinklers, standpipes, smoke control, ventilation, pressurization, door hold-open
                                                                                                    devices, elevator recalls, smoke and fire shutters and dampers, emergency power, emergency lighting, fire
                                                                                                    pumps, generators, etc.), including their interconnections with other building systems, are functioning
                                                                                                    according to the intent of their design. CAN/ULC-S1001, “Standard for Integrated Systems Testing of
                                                                                                    Fire Protection and Life Safety Systems,” provides the methodology for verifying and documenting that
                                                                                                    interconnections between building systems satisfy the intent of their design and that the systems function as
                                                                                                    intended by the Code.
                                                                                                    Clause 6.1.5 of CAN/ULC-S1001 allows the Integrated Testing Coordinator to accept documented evidence of
                                                                                                    any tests that have been performed on a system as part of its acceptance testing for the purpose of demonstrating
                                                                                                    compliance with the integrated testing requirements of that standard, so as to avoid duplication of work.




                                                                                                    6-8 Division B                                                                     National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Part 7
                                                                                                    Fire Emergency Systems in
                                                                                                    High Buildings




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                                                                                                      7.1.          General
                                                                                                      7.1.1.        General .............................................. 7-1

                                                                                                      7.2.          Inspection, Testing and
                                                                                                                    Maintenance
                                                                                                      7.2.1.        Intervals between Tests ................... 7-2
                                                                                                      7.2.2.        Elevators ........................................... 7-2
                                                                                                      7.2.3.        Venting to Aid Firefighting .............. 7-2
                                                                                                      7.2.4.        Central Alarm and Control Facility .. 7-2

                                                                                                      7.3.          Inspections and Test
                                                                                                                    Procedures for Smoke
                                                                                                                    Control Measures
                                                                                                      7.3.1.        General .............................................. 7-3
                                                                                                      7.3.2.        Measure A ......................................... 7-3
                                                                                                      7.3.3.        Measure B ......................................... 7-4
                                                                                                      7.3.4.        Measure C ......................................... 7-4
                                                                                                      7.3.5.        Measure D ......................................... 7-4
                                                                                                      7.3.6.        Measure E ......................................... 7-5
                                                                                                      7.3.7.        Measure F ......................................... 7-6
                                                                                                      7.3.8.        Measure G ......................................... 7-6
                                                                                                      7.3.9.        Measure H ......................................... 7-6
                                                                                                      7.3.10.       Measure I ........................................... 7-7
                                                                                                      7.3.11.       Measure J .......................................... 7-7
                                                                                                      7.3.12.       Measure K ......................................... 7-8
                                                                                                      7.3.13.       Measure L ......................................... 7-8
                                                                                                      7.3.14.       Measure M ......................................... 7-9
                                                                                                      7.3.15.       Measure N ......................................... 7-9

                                                                                                      7.4.          Objectives and
                                                                                                                    Functional Statements
                                                                                                      7.4.1.        Objectives and Functional
                                                                                                                    Statements ........................................ 7-9

                                                                                                                    Notes to Part 7 ................ 7-11




                                                                                                    National Fire Code of Canada 2020
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National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Part 7
                                                                                                    Fire Emergency Systems in
                                                                                                    High Buildings




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                                                                                                    Section 7.1. General
                                                                                                    7.1.1.            General

                                                                                                    7.1.1.1.          Application

                                                                                                                        1) This Part provides for the inspection, testing and maintenance of the fire
                                                                                                                      emergency systems installed in high buildings as defined in Subsection 3.2.6. of
                                                                                                                      Division B of the NBC.

                                                                                                    7.1.1.2.          Testing Fire Emergency Systems

                                                                                                                         1) Except as provided in Sentence (2), fire emergency systems required to be
                                                                                                                      installed in buildings in conformance with Subsection 3.2.6. of Division B of the NBC
                                                                                                                      shall be tested in conformance with Sections 7.2. and 7.3.

                                                                                                                         2) Any fire emergency system required by Subsection 3.2.6. of Division B of the
                                                                                                                      NBC that does not conform to a specific measure outlined in Commentary C of the
                                                                                                                      “User's Guide – NBC 1995 Fire Protection, Occupant Safety and Accessibility (Part 3)”
                                                                                                                      shall be tested to ensure that it operates as intended.

                                                                                                                         3) Deficiencies noted during the testing described in Sentences (1) and (2) shall
                                                                                                                      be corrected.

                                                                                                    7.1.1.3.          Records

                                                                                                                         1) A written record shall be kept of all tests and corrective measures required by
                                                                                                                      Article 7.1.1.2., and such record shall be retained for examination by the authority
                                                                                                                      having jurisdiction, in conformance with Article 2.2.1.2. of Division C.

                                                                                                    7.1.1.4.          Maintenance of Fire Emergency Systems

                                                                                                                         1) In addition to the requirements of Part 6, components of fire emergency
                                                                                                                      systems shall be maintained in conformance with Sentences (2) to (5).

                                                                                                                         2) The keys required to recall elevators and to permit independent operation of
                                                                                                                      each elevator shall be kept in the locations required by Subsection 3.2.6. of Division
                                                                                                                      B of the NBC.

                                                                                                                         3) Access to windows and panels required to vent floor areas and vents to
                                                                                                                      vestibules permitted to be manually openable shall be kept free of obstruction.

                                                                                                                         4) Windows and panels provided for venting floor areas shall be maintained so as
                                                                                                                      to be openable without the use of keys.

                                                                                                                         5) Vents to vestibules permitted to be manually openable shall be maintained in
                                                                                                                      an operable condition.


                                                                                                    National Fire Code of Canada 2020                                                                     Division B 7-1
                                                                                                    7.2.1.1.                                                                                          Division B

                                                                                                    Section 7.2. Inspection, Testing and Maintenance
                                                                                                    7.2.1.           Intervals between Tests
                                                                                                    7.2.1.1.         Intervals between Tests
                                                                                                                        1) Except as specifically prescribed in this Part, all tests specified in this
                                                                                                                     Section and Section 7.3. shall be carried out at intervals not greater than 3 months,
                                                                                                                     except that longer intervals between tests are permitted in conformance with
                                                                                                                     Clause 1.2.1.1.(1)(b) of Division A. (See Note A-7.2.1.1.(1).)




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                                                                                                    7.2.2.           Elevators
                                                                                                    7.2.2.1.         Testing Elevators
                                                                                                                        1) Emergency service features of elevators shall be tested to ensure that they
                                                                                                                     operate in conformance with appropriate provincial, territorial or municipal
                                                                                                                     requirements or, in the absence of such requirements, as provided in Sentence (2).
                                                                                                                       2) Tests to ensure operation in conformance with ASME A17.1/CSA B44, “Safety
                                                                                                                     Code for Elevators and Escalators,” shall be performed on
                                                                                                                        a) in-car emergency service switches,
                                                                                                                       b) manual key-operated recall switches located outside an elevator shaft, and
                                                                                                                        c) automatic emergency recall systems.
                                                                                                                        3) At intervals not greater than 12 months, the building emergency power systems
                                                                                                                     shall be operated and all elevators supplied with emergency power shall be tested as
                                                                                                                     provided in Sentence (1) with no other source of electrical power.

                                                                                                    7.2.3.           Venting to Aid Firefighting
                                                                                                    7.2.3.1.         Closures
                                                                                                                        1) The closures in vent openings into smoke shafts from each floor area shall be
                                                                                                                     tested in conformance with Article 7.2.1.1. to ensure that they will open as required
                                                                                                                     in Chapter 3, Sentence (5) of Commentary C of the “User's Guide – NBC 1995 Fire
                                                                                                                     Protection, Occupant Safety and Accessibility (Part 3).”
                                                                                                                        2) A closure in an opening to the outdoors at the top of a smoke shaft shall be
                                                                                                                     tested to ensure that it will open
                                                                                                                         a) manually from outside the building,
                                                                                                                         b) on a signal from the smoke detector in the smoke shaft, and
                                                                                                                         c) when a closure in an opening between a floor area and the smoke shaft opens.

                                                                                                    7.2.3.2.         Elevator Recall
                                                                                                                        1) In addition to the procedures described in Article 7.2.3.1., all elevators in an
                                                                                                                     elevator shaft that is designed for use as a smoke shaft shall be tested to ensure that
                                                                                                                     on activation of the fire alarm system they will return to the street floor level and
                                                                                                                     remain inoperative.

                                                                                                    7.2.3.3.         Air-Handling System Controls
                                                                                                                        1) Controls for air-handling systems used for venting in the event of a fire shall be
                                                                                                                     tested to ensure that air is exhausted from each floor area to the outdoors as required
                                                                                                                     in Chapter 3, Sentence (8) of Commentary C of the “User's Guide – NBC 1995 Fire
                                                                                                                     Protection, Occupant Safety and Accessibility (Part 3).”

                                                                                                    7.2.4.           Central Alarm and Control Facility
                                                                                                    7.2.4.1.         Fan Controls
                                                                                                                        1) Air moving fans in a system serving more than 2 storeys shall be tested to ensure
                                                                                                                     that they will stop on activation of a switch at the central alarm and control facility.


                                                                                                    7-2 Division B                                                                       National Fire Code of Canada 2020
                                                                                                    Division B                                                                                              7.3.2.1.

                                                                                                    7.2.4.2.          Hold-Open Devices

                                                                                                                         1) Doors to vestibules that are normally held open by a hold-open device
                                                                                                                      connected to the building fire alarm system shall be tested to ensure that they will close
                                                                                                                      on a signal from the central alarm and control facility.


                                                                                                    Section 7.3. Inspections and Test Procedures for
                                                                                                    Smoke Control Measures




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                                                                                                    7.3.1.            General

                                                                                                    7.3.1.1.          Application

                                                                                                                         1) The test procedures described in Subsections 7.3.2. to 7.3.15., as appropriate to
                                                                                                                      the fire safety measure being used, shall be carried out in addition to those required
                                                                                                                      by Sections 7.1. and 7.2., unless otherwise specified in the fire safety plan. (See
                                                                                                                      Note A-7.3.1.1.(1).)

                                                                                                    7.3.1.2.          Doors in Means of Egress

                                                                                                                         1) Where vestibules or stairshafts are pressurized as a means of smoke control, all
                                                                                                                      doors in the path of exit travel shall be tested to ensure that they can be operated as
                                                                                                                      required in Article 2.7.2.1. when the entire smoke control system is being tested.

                                                                                                    7.3.2.            Measure A

                                                                                                    7.3.2.1.          Test Procedures

                                                                                                                        1) Where Measure A is used to limit smoke movement as provided in
                                                                                                                      Commentary C of the “User's Guide – NBC 1995 Fire Protection, Occupant Safety
                                                                                                                      and Accessibility (Part 3),”
                                                                                                                         a) switches at the central alarm and control facility shall be tested to ensure that
                                                                                                                               i) closures to vent openings in vertical service spaces that are
                                                                                                                                  required by Sentence (6) * of Measure A open automatically
                                                                                                                                  and remain open, and
                                                                                                                              ii) the mechanical air supply to below grade stairshafts is
                                                                                                                                  initiated as provided in Sentence (3) * of Measure A,
                                                                                                                         b) closures in openings to the outdoors in vertical service spaces that are required
                                                                                                                            by Sentence (6) * of Measure A shall be tested to ensure that they will operate
                                                                                                                            as required,
                                                                                                                         c) closures in vent openings to the outdoors in above grade stairshafts shall be
                                                                                                                            tested to ensure that they can be opened manually and will remain open
                                                                                                                            as provided in Sentence (2) * of Measure A, and
                                                                                                                         d) closures in vent openings to the outdoors in below grade stairshafts shall be
                                                                                                                            tested to ensure that they will open automatically, if such means is provided,
                                                                                                                            and remain open when air is being injected into the stairshaft.

                                                                                                    * Sentence numbers refer to Sentences contained in Commentary C of the User's Guide – NBC
                                                                                                    1995 (Part 3).




                                                                                                    National Fire Code of Canada 2020                                                                       Division B 7-3
                                                                                                    7.3.3.1.                                                                                           Division B

                                                                                                    7.3.3.           Measure B
                                                                                                    7.3.3.1.         Test Procedures
                                                                                                                        1) Where Measure B is used to limit smoke movement as provided in Commentary
                                                                                                                     C of the “User's Guide – NBC 1995 Fire Protection, Occupant Safety and Accessibility
                                                                                                                     (Part 3),”
                                                                                                                        a) switches at the central alarm and control facility shall be tested at intervals
                                                                                                                             conforming to Article 7.2.1.1. to ensure that
                                                                                                                                 i) dampers in air-handling systems that serve more than
                                                                                                                                    2 storeys close automatically and remain closed as provided
                                                                                                                                    in Sentence (7) * of Measure B, and




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                                                                                                                                ii) closures to vent openings in vertical service spaces that are
                                                                                                                                    required by Sentences (5) * and (6) * of Measure B open
                                                                                                                                    automatically and remain open,
                                                                                                                        b) switches at the central alarm and control facility shall be tested to ensure
                                                                                                                             that the mechanical air supply to below grade stairshafts is initiated as
                                                                                                                             provided in Sentence (3) * of Measure B,
                                                                                                                         c) closures in openings to the outdoors in vertical service spaces that are required
                                                                                                                             by Sentence (5) * of Measure B shall be tested at intervals conforming to
                                                                                                                             Article 7.2.1.1. to ensure that they will operate as required, and
                                                                                                                        d) closures in vent openings to the outdoors in below grade stairshafts shall be
                                                                                                                             tested to ensure that they open automatically, if such means is provided,
                                                                                                                             and remain open when air is being injected into the stairshaft as required by
                                                                                                                             Sentence (3) * of Measure B.

                                                                                                    7.3.4.           Measure C
                                                                                                    7.3.4.1.         Test Procedures
                                                                                                                        1) Where Measure C is used to limit smoke movement as provided in Commentary
                                                                                                                     C of the “User's Guide – NBC 1995 Fire Protection, Occupant Safety and Accessibility
                                                                                                                     (Part 3),”
                                                                                                                        a) switches at the central alarm and control facility shall be tested to ensure
                                                                                                                             that the mechanical air supply to below grade stairshafts is initiated as
                                                                                                                             provided in Sentence (3) * of Measure C, and
                                                                                                                        b) closures in vent openings to the outdoors in below grade stairshafts shall be
                                                                                                                             tested to ensure that they open automatically, if such means is provided,
                                                                                                                             and remain open when air is being injected into the stairshafts.

                                                                                                    7.3.5.           Measure D
                                                                                                    7.3.5.1.         Test Procedures
                                                                                                                       1) Where Measure D is used to limit smoke movement as provided in
                                                                                                                     Commentary C of the “User's Guide – NBC 1995 Fire Protection, Occupant Safety
                                                                                                                     and Accessibility (Part 3),”
                                                                                                                        a) switches at the central alarm and control facility shall be tested at intervals
                                                                                                                           conforming to Article 7.2.1.1. to ensure that
                                                                                                                              i) closures in vent openings to the outdoors in vestibules,
                                                                                                                                 vertical service spaces and elevator shafts open automatically
                                                                                                                                 and remain open as provided in Sentences (6) *, (10) *, (12) *
                                                                                                                                 and (13) * of Measure D, and
                                                                                                                             ii) dampers in air-handling systems that serve more than 2
                                                                                                                                 storeys close automatically and remain closed as provided
                                                                                                                                 in Sentence (16) * of Measure D,
                                                                                                                        b) switches at the central alarm and control facility shall be tested to ensure
                                                                                                                           that the mechanical air supply to vestibules and below grade stairshafts is
                                                                                                                           initiated as provided in Sentence (5) * of Measure D,
                                                                                                                        c) closures in vent openings to the outdoors in vertical service spaces or at the top
                                                                                                                           of elevator shafts as required by Sentences (10) *, (12) * and (13) * of Measure


                                                                                                    7-4 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                 7.3.6.1.

                                                                                                                            D shall be tested at intervals conforming to Article 7.2.1.1. to ensure that
                                                                                                                            they will operate as required,
                                                                                                                         d) closures in vent openings to the outdoors in above grade stairshafts and at
                                                                                                                            the street entrance floor of firefighters' elevator shafts shall be tested to
                                                                                                                            ensure that they can be opened manually and remain open as provided in
                                                                                                                            Sentences (7) * and (11) * of Measure D, and
                                                                                                                         e) closures in vent openings to the outdoors in below grade stairshafts shall be
                                                                                                                            tested to ensure that they open automatically, if such means is provided,
                                                                                                                            when air is being injected into the stairshafts as required by Sentence (8) * of
                                                                                                                            Measure D.

                                                                                                                         2) Pressurized vestibules shall be tested in different seasons by a pressure sensor




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                                                                                                                      or by tracer smoke at intervals not greater than 2 years and after any alteration to
                                                                                                                      the building, to ensure that movement of air is from the vestibules to the floor areas
                                                                                                                      on all storeys.

                                                                                                    7.3.6.            Measure E

                                                                                                    7.3.6.1.          Test Procedures

                                                                                                                         1) Where Measure E is used to limit smoke movement as provided in Commentary
                                                                                                                      C of the “User's Guide – NBC 1995 Fire Protection, Occupant Safety and Accessibility
                                                                                                                      (Part 3),”
                                                                                                                         a) switches at the central alarm and control facility shall be tested at intervals
                                                                                                                              conforming to Article 7.2.1.1. to ensure that closures in vent openings to the
                                                                                                                              outdoors in vestibules and firefighters' elevator shafts that are required by
                                                                                                                              Sentences (4) * and (9) * of Measure E will open automatically and remain
                                                                                                                              open,
                                                                                                                         b) switches at the central alarm and control facility shall be tested to ensure
                                                                                                                              that the mechanical air supply to vestibules and below grade stairshafts is
                                                                                                                              initiated as provided in Sentences (4) * and (7) * of Measure E,
                                                                                                                          c) closures in vent openings to the outdoors at the top of firefighters' elevator
                                                                                                                              shafts that are required by Sentence (9) * of Measure E shall be tested to
                                                                                                                              ensure that they will operate as required,
                                                                                                                         d) closures in vent openings to the outdoors in above grade stairshafts and at
                                                                                                                              the street entrance floor of firefighters' elevator shafts that are required by
                                                                                                                              Sentences (6) * and (10) * of Measure E shall be tested to ensure that they can
                                                                                                                              be opened manually and will remain open, and
                                                                                                                         e) closures in vent openings to the outdoors in below grade stairshafts shall be
                                                                                                                              tested to ensure that they will open automatically, if such means is provided,
                                                                                                                              and remain open when air is being injected into the stairshafts as required
                                                                                                                              by Sentence (7) * of Measure E.

                                                                                                                         2) Pressurized vestibules shall be tested in different seasons by pressure sensor
                                                                                                                      or by tracer smoke at intervals not greater than 2 years and after any alteration to
                                                                                                                      the building, to ensure that movement of air is from the vestibules to the floor areas
                                                                                                                      on all storeys.




                                                                                                    National Fire Code of Canada 2020                                                                      Division B 7-5
                                                                                                    7.3.7.1.                                                                                           Division B

                                                                                                    7.3.7.           Measure F
                                                                                                    7.3.7.1.         Test Procedures
                                                                                                                        1) Where Measure F is used to limit smoke movement as provided in Commentary
                                                                                                                     C of the “User's Guide – NBC 1995 Fire Protection, Occupant Safety and Accessibility
                                                                                                                     (Part 3),”
                                                                                                                        a) switches at the central alarm and control facility shall be tested at intervals
                                                                                                                             conforming to Article 7.2.1.1. to ensure that
                                                                                                                                 i) closures to vent openings to the outdoors in vertical service
                                                                                                                                    spaces, elevator shafts and below grade floor areas that are
                                                                                                                                    required by Sentences (6) * and (10) * of Measure F open




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                                                                                                                                    automatically and remain open, and
                                                                                                                                ii) dampers in air-handling systems that serve more than 2
                                                                                                                                    storeys close automatically and remain closed as provided
                                                                                                                                    in Sentence (12) * of Measure F,
                                                                                                                        b) switches at the central alarm and control facility shall be tested to ensure
                                                                                                                             that the mechanical air supply to stairshafts and elevator shafts is initiated
                                                                                                                             as provided in Sentences (2), * (3) * and (4) * of Measure F,
                                                                                                                         c) closures in vent openings to the outdoors in vertical service spaces or elevator
                                                                                                                             shafts that are required by Sentence (12) * of Measure F shall be tested at
                                                                                                                             intervals conforming to Article 7.2.1.1. to ensure that they will operate as
                                                                                                                             required, and
                                                                                                                        d) closures in vent openings to the outdoors in stairshafts shall be tested to
                                                                                                                             ensure that they open automatically, if such means is provided, and remain
                                                                                                                             open when the mechanical air supply to the stairshafts is initiated as
                                                                                                                             provided in Sentences (2) * and (3) * of Measure F.
                                                                                                                        2) Pressurized stair and elevator shafts shall be tested in different seasons by a
                                                                                                                     pressure sensor or tracer smoke at intervals not greater than 2 years and after any
                                                                                                                     alteration to the building, to ensure that the movement of air is from the stair or elevator
                                                                                                                     shafts to the floor areas on all storeys.

                                                                                                    7.3.8.           Measure G
                                                                                                    7.3.8.1.         Test Procedures
                                                                                                                        1) Where Measure G is used to limit smoke movement as provided in Commentary
                                                                                                                     C of the “User's Guide – NBC 1995 Fire Protection, Occupant Safety and Accessibility
                                                                                                                     (Part 3),”
                                                                                                                        a) switches at the central alarm and control facility shall be tested to ensure that
                                                                                                                                 i) closures in vent openings to the outdoors in below grade floor
                                                                                                                                    areas that are required by Sentence (6) * of Measure G open
                                                                                                                                    automatically and remain open, and
                                                                                                                                ii) the mechanical air supply to stairshafts and elevator shafts
                                                                                                                                    is initiated as provided in Sentences (2), * (3) * and (4) * of
                                                                                                                                    Measure G, and
                                                                                                                        b) closures in openings to the outdoors in stairshafts shall be tested to ensure
                                                                                                                             that they open automatically, if such means is provided, and remain open
                                                                                                                             when the air supply to the stairshafts is initiated as provided in Sentences
                                                                                                                             (2) * and (3) * of Measure G.
                                                                                                                        2) Pressurized stair and elevator shafts shall be tested in different seasons by a
                                                                                                                     pressure sensor or tracer smoke at intervals not greater than 2 years and after any
                                                                                                                     alteration to the building, to ensure that the movement of air is from the stair or elevator
                                                                                                                     shafts to the floor areas on all storeys.

                                                                                                    7.3.9.           Measure H
                                                                                                    7.3.9.1.         Test Procedures
                                                                                                                       1) Where Measure H is used to limit smoke movement as provided in
                                                                                                                     Commentary C of the “User's Guide – NBC 1995 Fire Protection, Occupant Safety and


                                                                                                    7-6 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                             7.3.11.1.

                                                                                                                      Accessibility (Part 3),” switches at the central alarm and control facility shall be tested
                                                                                                                      at intervals conforming to Article 7.2.1.1. to ensure that
                                                                                                                          a) closures in vent openings to the outdoors or into smoke shafts on each floor
                                                                                                                              will open automatically and remain open as provided in Sentence (6) * of
                                                                                                                              Measure H,
                                                                                                                          b) dampers in return air and exhaust ducts will close automatically and remain
                                                                                                                              closed as provided in Sentence (5) * of Measure H,
                                                                                                                          c) return air and exhaust fans are stopped and supply fans will provide air to
                                                                                                                              all floor areas and stairshafts as provided in Sentence (3) * of Measure H, and
                                                                                                                          d) closures in all openings in external walls and roofs will close automatically
                                                                                                                              and remain closed as provided in Sentence (4) * of Measure H.




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                                                                                                                         2) Pressurized vestibules at or near grade level shall be tested by a pressure sensor
                                                                                                                      or tracer smoke in different seasons at intervals not greater than 2 years and after any
                                                                                                                      alteration to the building, when the building is pressurized but without venting of the fire
                                                                                                                      floor, to ensure that the direction of air movement is from the building to the outdoors.

                                                                                                    7.3.10.           Measure I
                                                                                                    7.3.10.1.         Test Procedures
                                                                                                                         1) Where Measure I is used to limit smoke movement as provided in Commentary
                                                                                                                      C of the “User's Guide – NBC 1995 Fire Protection, Occupant Safety and Accessibility
                                                                                                                      (Part 3),” switches at the central alarm and control facility shall be tested at intervals
                                                                                                                      conforming to Article 7.2.1.1. to ensure that
                                                                                                                         a) dampers in air-handling systems that serve more than 2 storeys will close
                                                                                                                              automatically and remain closed as provided in Sentence (8) * of Measure I,
                                                                                                                         b) closures in openings in the walls and roof of the central core and in shafts
                                                                                                                              within the core will close automatically and remain closed as provided in
                                                                                                                              Sentence (3) * of Measure I,
                                                                                                                          c) return air fans are stopped and supply fans will provide air to the central
                                                                                                                              core as provided in Sentence (2) * of Measure I,
                                                                                                                         d) closures in vent openings to the outdoors and into smoke shafts from each
                                                                                                                              floor area will open automatically and remain open as provided in Sentence
                                                                                                                              (4) * of Measure I,
                                                                                                                         e) air movement is initiated in an exhaust system used for venting as provided
                                                                                                                              in Sentence (4) * of Measure I, and
                                                                                                                          f) closures in vent openings to the outdoors in vertical service spaces outside
                                                                                                                              the central core that are required by Sentence (6) * of Measure I will open
                                                                                                                              automatically and remain open.
                                                                                                                         2) The pressurized core shall be tested at or near grade in different seasons by a
                                                                                                                      pressure sensor or tracer smoke at intervals not greater than 2 years and after any
                                                                                                                      alteration to the building, to ensure that movement of air is from the pressurized core to
                                                                                                                      the outdoors on all storeys.

                                                                                                    7.3.11.           Measure J
                                                                                                    7.3.11.1.         Test Procedures
                                                                                                                         1) Where Measure J is used to limit smoke movement as provided in Commentary
                                                                                                                      C of the “User's Guide – NBC 1995 Fire Protection, Occupant Safety and Accessibility
                                                                                                                      (Part 3),” switches at the central alarm and control facility shall be tested at intervals
                                                                                                                      conforming to Article 7.2.1.1. to ensure that
                                                                                                                         a) closures in openings in the walls and roofs of the central core and in shafts
                                                                                                                              within the core will close automatically and remain closed as provided
                                                                                                                              in Sentence (3) * of Measure J, and
                                                                                                                         b) return-air fans are stopped and supply fans will provide air to the central
                                                                                                                              core as provided in Sentence (2) * of Measure J.
                                                                                                                         2) The pressurized core shall be tested at or near grade in different seasons by a
                                                                                                                      pressure sensor or tracer smoke at intervals not greater than 2 years and after any


                                                                                                    National Fire Code of Canada 2020                                                                        Division B 7-7
                                                                                                    7.3.12.1.                                                                                          Division B

                                                                                                                     alteration to the building, to ensure that the movement of air is from the pressurized
                                                                                                                     core to the outdoors on all storeys.

                                                                                                    7.3.12.          Measure K

                                                                                                    7.3.12.1.        Test Procedures

                                                                                                                        1) Where Measure K is used to limit smoke movement as provided in Commentary
                                                                                                                     C of the “User's Guide – NBC 1995 Fire Protection, Occupant Safety and Accessibility
                                                                                                                     (Part 3),”
                                                                                                                        a) switches at the central alarm and control facility shall be tested at intervals




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                                                                                                                             conforming to Article 7.2.1.1. to ensure that
                                                                                                                                 i) the mechanical air supply to vestibules is initiated as
                                                                                                                                    provided in Sentences (11) * and (15) * of Measure K, and
                                                                                                                                ii) doors to vestibules, if these are normally held open, will
                                                                                                                                    close automatically and remain closed as provided in
                                                                                                                                    Sentence (1) * of Measure K, and
                                                                                                                        b) closures in vent openings to the outdoors in above grade stairshafts and in
                                                                                                                             vented vestibules shall be tested to ensure that they can be opened manually
                                                                                                                             and will remain open as provided in Sentences (11) * and (13) * of Measure K.

                                                                                                                        2) Pressurized vestibules shall be tested in different seasons by a pressure sensor or
                                                                                                                     tracer smoke at intervals not greater than 2 years and after any alteration to the building,
                                                                                                                     to ensure that the movement of air is from the vestibules to the floor areas on all storeys.

                                                                                                    7.3.13.          Measure L

                                                                                                    7.3.13.1.        Test Procedures

                                                                                                                        1) Where Measure L is used to limit smoke movement as provided in Commentary
                                                                                                                     C of the “User's Guide – NBC 1995 Fire Protection, Occupant Safety and Accessibility
                                                                                                                     (Part 3),”
                                                                                                                        a) switches at the central alarm and control facility shall be tested at intervals
                                                                                                                             conforming to Article 7.2.1.1. to ensure that
                                                                                                                                 i) doors to vestibules and areas of refuge, if these are normally
                                                                                                                                    held open, will close automatically and remain closed as
                                                                                                                                    provided in Sentence (8) * of Measure L, and
                                                                                                                                ii) closures in vent openings to the outdoors in elevator shafts
                                                                                                                                    that are required by Sentence (16) * of Measure L will open
                                                                                                                                    automatically and remain open,
                                                                                                                        b) switches at the central alarm and control facility shall be tested to ensure that
                                                                                                                             the air supply to the areas of refuge, vestibules and below grade stairshafts is
                                                                                                                             initiated as provided in Sentences (9), * (10), * (11) * and (14) * of Measure L,
                                                                                                                         c) closures in vent openings to the outdoors in below grade stairshafts shall be
                                                                                                                             tested to ensure that they open automatically and remain open when the air
                                                                                                                             is being injected into the stairshaft, and
                                                                                                                        d) vent openings to the outdoors in above grade stairshafts and at the street
                                                                                                                             entrance floor of firefighters' elevator shafts shall be tested to ensure that
                                                                                                                             they can be opened manually and will remain open as provided in Sentence
                                                                                                                             (13) * of Measure L.

                                                                                                                         2) Vestibules and areas of refuge shall be tested in different seasons by a pressure
                                                                                                                     sensor or tracer smoke at intervals not greater than 2 years and after any alteration to
                                                                                                                     the building, to ensure that the movement of air is from the areas of refuge or vestibules
                                                                                                                     to the floor areas on all storeys.




                                                                                                    7-8 Division B                                                                        National Fire Code of Canada 2020
                                                                                                    Division B                                                                                                          7.4.1.1.

                                                                                                    7.3.14.             Measure M
                                                                                                    7.3.14.1.           Test Procedures
                                                                                                                          1) Where Measure M is used to limit smoke movement as provided in
                                                                                                                        Commentary C of the “User's Guide – NBC 1995 Fire Protection, Occupant Safety
                                                                                                                        and Accessibility (Part 3),”
                                                                                                                           a) switches at the central alarm and control facility shall be tested to ensure
                                                                                                                              that the mechanical air supply to below grade stairshafts is initiated as
                                                                                                                              provided in Sentence (3) * of Measure M, and
                                                                                                                           b) vent openings to the outdoors in above grade stairshafts shall be tested to
                                                                                                                              ensure that they can be opened manually and will remain open as provided




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                                                                                                                              in Sentence (2) * of Measure M.

                                                                                                    7.3.15.             Measure N
                                                                                                    7.3.15.1.           Test Procedures
                                                                                                                          1) Where Measure N is used to limit smoke movement from one building to
                                                                                                                        another of connected buildings as provided in Measure N of Commentary C of the
                                                                                                                        “User's Guide – NBC 1995 Fire Protection, Occupant Safety and Accessibility (Part 3),”
                                                                                                                           a) switches to initiate the air supply to the vestibules shall be tested to ensure
                                                                                                                               that the air supply is initiated as provided in Sentence (3) * of Measure N, and
                                                                                                                           b) closures in vent openings to the outdoors in vestibules shall be tested to
                                                                                                                               ensure that they will open as provided in Sentence (3) * of Measure N.
                                                                                                                           2) Pressurized vestibules shall be tested in different seasons by a pressure sensor
                                                                                                                        or tracer smoke at intervals not greater than 2 years and after any alteration to the
                                                                                                                        building, to ensure that the movement of air is from the vestibules to adjacent floor
                                                                                                                        areas on all storeys.


                                                                                                    Section 7.4. Objectives and Functional Statements
                                                                                                    7.4.1.              Objectives and Functional Statements
                                                                                                    7.4.1.1.            Attribution to Acceptable Solutions
                                                                                                                            1) For the purposes of compliance with this Code as required in
                                                                                                                        Clause 1.2.1.1.(1)(b) of Division A, the objectives and functional statements attributed
                                                                                                                        to the acceptable solutions in this Part shall be the objectives and functional statements
                                                                                                                        listed in Table 7.4.1.1. (See Note A-1.1.2.1.(1).)

                                                                                                                          Table 7.4.1.1.                                              Table 7.4.1.1. (Continued)
                                                                                                      Objectives and Functional Statements Attributed to the
                                                                                                                  Acceptable Solutions in Part 7                    Provision          Functional Statements and Objectives (1)
                                                                                                                Forming Part of Sentence 7.4.1.1.(1)                (3)         [F12-OP1.2]
                                                                                                     Provision          Functional Statements and Objectives (1)                [F12-OS1.2]
                                                                                                     7.1.1.2. Testing Fire Emergency Systems                        (4)         [F12-OP1.2]
                                                                                                     (2)         [F82-OP1.2]                                                    [F12-OS1.2]
                                                                                                                 [F82-OS1.2,OS1.5]                                  (5)         [F82-OP1.2]
                                                                                                     (3)         [F82-OP1.2]                                                    [F82-OP3.1]
                                                                                                                 [F82-OS1.2,OS1.5]                                              [F82-OS1.2,OS1.5]
                                                                                                     7.1.1.4. Maintenance of Fire Emergency Systems                 7.2.1.1. Intervals between Tests

                                                                                                     (2)         [F12-OP1.2]                                        (1)         [F82-OP1.2]
                                                                                                                 [F12-OS1.2,OS1.5]                                              [F82-OS1.2,OS1.5]



                                                                                                    National Fire Code of Canada 2020                                                                                  Division B 7-9
                                                                                                    7.4.1.1.                                                                                                           Division B

                                                                                                                        Table 7.4.1.1. (Continued)                                         Table 7.4.1.1. (Continued)

                                                                                                     Provision           Functional Statements and Objectives (1)     Provision             Functional Statements and Objectives (1)
                                                                                                    7.2.2.1. Testing Elevators                                       (2)            [F82-OS1.2,OS1.5]
                                                                                                    (1)          [F82-OP1.2]                                         7.3.8.1. Test Procedures
                                                                                                                 [F82-OS1.2,OS1.5]                                   (1)            [F82-OP1.2]
                                                                                                    (2)          [F82-OP1.2]                                                        [F82-OS1.2,OS1.5]
                                                                                                                 [F82-OS1.2,OS1.5]                                   (2)            [F82-OS1.2,OS1.5]
                                                                                                    (3)          [F82-OP1.2]                                         7.3.9.1. Test Procedures




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                                                                                                                 [F82-OS1.2,OS1.5]                                   (1)            [F82-OP1.2]
                                                                                                    7.2.3.1. Closures                                                               [F82-OS1.2,OS1.5]
                                                                                                    (1)          [F82-OP1.2]                                         (2)            [F82-OS1.2,OS1.5]
                                                                                                                 [F82-OS1.2,OS1.5]                                   7.3.10.1. Test Procedures
                                                                                                    (2)          [F82-OP1.2]                                         (1)            [F82-OP1.2]
                                                                                                                 [F82-OS1.2,OS1.5]                                                  [F82-OS1.2,OS1.5]
                                                                                                    7.2.3.2. Elevator Recall                                         (2)            [F82-OS1.2,OS1.5]
                                                                                                    (1)          [F82-OS1.2]                                         7.3.11.1. Test Procedures
                                                                                                    7.2.3.3. Air-Handling System Controls                            (1)            [F82-OP1.2]
                                                                                                    (1)          [F82-OP1.2]                                                        [F82-OS1.2,OS1.5]
                                                                                                                 [F82-OS1.2,OS1.5]                                   (2)            [F82-OS1.2,OS1.5]
                                                                                                    7.2.4.1. Fan Controls                                            7.3.12.1. Test Procedures
                                                                                                    (1)          [F82-OP1.2]                                         (1)            [F82-OP1.2]
                                                                                                                 [F82-OS1.2,OS1.5]                                                  [F82-OS1.2,OS1.5]
                                                                                                    7.2.4.2. Hold-Open Devices                                       (2)            [F82-OS1.2,OS1.5]
                                                                                                    (1)          [F82-OP1.2]                                         7.3.13.1. Test Procedures
                                                                                                                 [F82-OS1.2,OS1.5]                                   (1)            [F82-OP1.2]
                                                                                                    7.3.2.1. Test Procedures                                                        [F82-OS1.2,OS1.5]
                                                                                                    (1)          [F82-OP1.2]                                         (2)            [F82-OS1.2,OS1.5]
                                                                                                                 [F82-OS1.2,OS1.5]                                   7.3.14.1. Test Procedures
                                                                                                    7.3.3.1. Test Procedures                                         (1)            [F82-OP1.2]
                                                                                                    (1)          [F82-OP1.2]                                                        [F82-OS1.2,OS1.5]
                                                                                                                 [F82-OS1.2,OS1.5]                                   7.3.15.1. Test Procedures
                                                                                                    7.3.4.1. Test Procedures                                         (1)            [F82-OP1.2]
                                                                                                    (1)          [F82-OP1.2]                                                        [F82-OP3.1]
                                                                                                                 [F82-OS1.2,OS1.5]                                                  [F82-OS1.5]
                                                                                                    7.3.5.1. Test Procedures                                         (2)            [F82-OP1.2]
                                                                                                    (1)          [F82-OP1.2]                                                        [F82-OP3.1]
                                                                                                                 [F82-OS1.2,OS1.5]                                                  [F82-OS1.5]
                                                                                                    (2)          [F82-OS1.2,OS1.5]
                                                                                                    7.3.6.1. Test Procedures
                                                                                                                                                                    Notes to Table 7.4.1.1.:
                                                                                                                                                                    (1)    See Parts 2 and 3 of Division A.
                                                                                                     (1)         [F82-OP1.2]
                                                                                                                 [F82-OS1.2,OS1.5]
                                                                                                     (2)         [F82-OS1.2,OS1.5]
                                                                                                     7.3.7.1. Test Procedures
                                                                                                     (1)         [F82-OP1.2]
                                                                                                                 [F82-OS1.2,OS1.5]



                                                                                                    7-10 Division B                                                                                    National Fire Code of Canada 2020
                                                                                                    Division B



                                                                                                    Notes to Part 7
                                                                                                    Fire Emergency Systems in
                                                                                                    High Buildings




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                                                                                                    A-7.2.1.1.(1) It is not intended that all equipment be tested on each test occasion. A representative number
                                                                                                    of devices may be tested on each occasion provided all equipment is tested within the time period agreed to
                                                                                                    in the fire safety plan.

                                                                                                    A-7.3.1.1.(1) The testing required in Section 7.3. is not intended to be a complete assessment of the design
                                                                                                    of the smoke control system, but only a test of the individual pieces of equipment specified.

                                                                                                    These Notes are included for explanatory purposes only and do not form part of the requirements. The number
                                                                                                    that introduces each Note corresponds to the applicable requirement in this Part.




                                                                                                    National Fire Code of Canada 2020                                                                             Division B 7-11
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7-12 Division B




National Fire Code of Canada 2020
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                                                                                               Division C

                                                                   Administrative Provisions
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                                                                                                    Division C



                                                                                                    Part 1
                                                                                                    General




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                                                                                                      1.1.          Application
                                                                                                      1.1.1.        Application ........................................ 1-1

                                                                                                      1.2.          Terms and Abbreviations
                                                                                                      1.2.1.        Definitions of Words and Phrases .. 1-1
                                                                                                      1.2.2.        Symbols and Other Abbreviations .. 1-1




                                                                                                    National Fire Code of Canada 2020
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National Fire Code of Canada 2020
                                                                                                    Division C



                                                                                                    Part 1
                                                                                                    General




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                                                                                                    Section 1.1. Application
                                                                                                    1.1.1.            Application

                                                                                                    1.1.1.1.          Application

                                                                                                                         1) This Part applies to all buildings and facilities covered in this Code. (See
                                                                                                                      Article 1.1.1.1. of Division A.)


                                                                                                    Section 1.2. Terms and Abbreviations
                                                                                                    1.2.1.            Definitions of Words and Phrases

                                                                                                    1.2.1.1.          Non-defined Terms

                                                                                                                         1) Words and phrases used in Division C that are not included in the list of
                                                                                                                      definitions in Article 1.4.1.2. of Division A shall have the meanings that are commonly
                                                                                                                      assigned to them in the context in which they are used, taking into account the
                                                                                                                      specialized use of terms by the various trades and professions to which the terminology
                                                                                                                      applies.

                                                                                                                         2) Where objectives and functional statements are referred to in Division C, they
                                                                                                                      shall be the objectives and functional statements described in Parts 2 and 3 of Division
                                                                                                                      A.

                                                                                                                         3) Where acceptable solutions are referred to in Division C, they shall be the
                                                                                                                      provisions stated in Parts 2 to 7 of Division B.

                                                                                                                         4) Where alternative solutions are referred to in Division C, they shall be the
                                                                                                                      alternative solutions mentioned in Clause 1.2.1.1.(1)(b) of Division A.

                                                                                                    1.2.1.2.          Defined Terms

                                                                                                                          1) The words and terms in italics in Division C shall have the meanings assigned
                                                                                                                      to them in Article 1.4.1.2. of Division A.

                                                                                                    1.2.2.            Symbols and Other Abbreviations

                                                                                                    1.2.2.1.          Symbols and Other Abbreviations

                                                                                                                         1) The symbols and other abbreviations in Division C shall have the meanings
                                                                                                                      assigned to them in Article 1.4.2.1. of Division A.


                                                                                                    National Fire Code of Canada 2020                                                                      Division C 1-1
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1-2 Division C




National Fire Code of Canada 2020
                                                                                                    Division C



                                                                                                    Part 2
                                                                                                    Administrative Provisions




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                                                                                                      2.1.          Application
                                                                                                      2.1.1.        Application ........................................ 2-1

                                                                                                      2.2.          Administration
                                                                                                      2.2.1.        General .............................................. 2-1

                                                                                                      2.3.          Alternative Solutions
                                                                                                      2.3.1.        Documentation of Alternative
                                                                                                                    Solutions ........................................... 2-1

                                                                                                                    Notes to Part 2 .................. 2-3




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National Fire Code of Canada 2020
                                                                                                    Division C



                                                                                                    Part 2
                                                                                                    Administrative Provisions




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                                                                                                    Section 2.1. Application
                                                                                                    2.1.1.              Application
                                                                                                    2.1.1.1.            Application
                                                                                                                           1) This Part applies to all buildings and facilities covered in this Code. (See
                                                                                                                        Article 1.1.1.1. of Division A.)


                                                                                                    Section 2.2. Administration
                                                                                                    (See Note A-2.2.)

                                                                                                    2.2.1.              General
                                                                                                    2.2.1.1.            Responsibility
                                                                                                                           1) Unless otherwise specified, the owner or the owner's authorized agent shall be
                                                                                                                        responsible for carrying out the provisions of this Code.

                                                                                                    2.2.1.2.            Records
                                                                                                                           1) Where this Code requires that tests, inspections, maintenance or operational
                                                                                                                        procedures be performed on a fire safety system, records shall be made and the
                                                                                                                        original or a copy shall be retained at the premises for examination by the authority
                                                                                                                        having jurisdiction.
                                                                                                                           2) The initial verification or test reports for each system shall be retained
                                                                                                                        throughout the life of the systems.
                                                                                                                           3) Records of tests, inspections, maintenance or operational procedures
                                                                                                                        undertaken after the initial tests referred to in Sentence (2) shall be retained so that at
                                                                                                                        least the current and the immediately preceding records are available.
                                                                                                                           4) Notwithstanding the conditions stated in Sentence (3), no record shall be
                                                                                                                        destroyed within two years of having been prepared.


                                                                                                    Section 2.3. Alternative Solutions
                                                                                                    2.3.1.              Documentation of Alternative Solutions
                                                                                                                        (See Note A-2.3.1.)

                                                                                                    2.3.1.1.            Documentation
                                                                                                                           1) Documentation conforming to this Subsection shall be provided by the person
                                                                                                                        requesting the use of an alternative solution to demonstrate that the proposed
                                                                                                                        alternative solution complies with this Code.


                                                                                                    National Fire Code of Canada 2020                                                                           Division C 2-1
                                                                                                    2.3.1.2.                                                                                         Division C

                                                                                                                        2) The documentation referred to in Sentence (1) shall include
                                                                                                                        a) a Code analysis outlining the analytical methods and rationales used to
                                                                                                                           determine that the proposed alternative solution will achieve at least the
                                                                                                                           level of performance required by Clause 1.2.1.1.(1)(b) of Division A, and
                                                                                                                        b) information concerning any special maintenance or operational
                                                                                                                           requirements, including any component commissioning requirements, that
                                                                                                                           are necessary for the alternative solution to achieve compliance with the
                                                                                                                           Code after the building or facility is constructed.

                                                                                                                        3) The Code analysis referred to in Clause (2)(a) shall identify the applicable
                                                                                                                     objectives, functional statements and acceptable solutions, and any assumptions,
                                                                                                                     limiting or restricting factors, testing procedures, engineering studies or performance




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                                                                                                                     parameters that will support a Code compliance assessment.

                                                                                                                        4) The Code analysis referred to in Clause (2)(a) shall include information
                                                                                                                     about the qualifications, experience and background of the person or persons taking
                                                                                                                     responsibility for the design.

                                                                                                                         5) The information provided under Sentence (3) shall be in sufficient detail to
                                                                                                                     convey the design intent and to support the validity, accuracy, relevance and precision
                                                                                                                     of the Code analysis.

                                                                                                                         6) Where the design of a building or facility includes proposed alternative
                                                                                                                     solutions that involve more than one person taking responsibility for different aspects
                                                                                                                     of the design, the applicant for the permit shall identify a single person to coordinate
                                                                                                                     the preparation of the design, Code analysis and documentation referred to in this
                                                                                                                     Subsection.

                                                                                                    2.3.1.2.         Retention of Documentation

                                                                                                                        1) Documentation conforming to Article 2.3.1.1. shall be retained on the premises
                                                                                                                     to which it pertains for each measure that has been approved by the authority having
                                                                                                                     jurisdiction and implemented as an alternative solution to acceptable solutions
                                                                                                                         a) in this Code, or
                                                                                                                         b) in the NBC that are attributed to the objectives Fire Safety (OS1), Safety in
                                                                                                                             Use (OS3), Fire Protection of the Building (OP1), or Protection of Adjacent
                                                                                                                             Buildings from Fire (OP3).




                                                                                                    2-2 Division C                                                                      National Fire Code of Canada 2020
                                                                                                    Division C



                                                                                                    Notes to Part 2
                                                                                                    Administrative Provisions




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                                                                                                    A-2.2. Administration. The National Fire Code of Canada is intended for use by lawmakers at various
                                                                                                    levels of government. Provisions regarding administration and enforcement are usually included in provincial
                                                                                                    or territorial legislation; thus the NFC contains only a few such provisions, which can serve as models.
                                                                                                    However, to aid municipalities adopting the NFC in the absence of such provincial or territorial legislation, this
                                                                                                    Note offers various enforcement options and lists the relevant legislative considerations for each option. This
                                                                                                    approach has been adopted for the following reasons:
                                                                                                       1. Powers of enforcement that are available to more senior levels of government are not generally available
                                                                                                          to municipalities.
                                                                                                       2. Powers of enforcement vary from one municipality to another.
                                                                                                      3. The nature and extent of the enforcement powers to be employed by governments are not technical issues,
                                                                                                          but are rather policy issues for the appropriate government to decide.

                                                                                                        Application
                                                                                                        The application of the NFC to the upgrading of existing facilities to provide an acceptable degree of life
                                                                                                        safety should be based on the judgment of the enforcement authority, who must deal with each case on its
                                                                                                        own merits. The legislative authority should specify the extent of such retroactive application and provide
                                                                                                        for the exercise of the necessary discretionary judgment on the part of the enforcement officials.
                                                                                                        The NFC relies on the owner or the owner's authorized representative to comply with the Code
                                                                                                        requirements. In preparing the legislation to be adopted, the legislative authority may wish to relieve an
                                                                                                        owner of the responsibility to be “automatically” in compliance with each new edition of the Code and
                                                                                                        the various standards referenced therein. This can be done in various ways, for example, by establishing
                                                                                                        implementation dates, such that facilities constructed after that date but meeting the requirements of
                                                                                                        the Codes in effect at that time, need not be upgraded, provided the level of safety is acceptable, or by
                                                                                                        providing for a scheduled upgrade over a period of time. An owner is expected to communicate with the
                                                                                                        authority having jurisdiction prior to proceeding with upgrading, at which time the authority may use
                                                                                                        discretion to accept alternatives.

                                                                                                        Authority Having Jurisdiction
                                                                                                        The NFC uses the phrase “authority having jurisdiction” as a general term to designate the person(s)
                                                                                                        exercising many enforcement functions and powers. A fire safety law should specifically identify the
                                                                                                        relevant authority or authorities having jurisdiction by defining the phrase “authority having jurisdiction”
                                                                                                        to mean the specific official(s) who will exercise such functions and powers.

                                                                                                        Enforcement Options
                                                                                                        There are four areas of concern related to the enforcement of prescribed fire safety standards: the inspection
                                                                                                        of premises, acceptances (including licences and permits), offences and penalties, and remedial orders.
                                                                                                        Senior levels of government have legislative powers to enact a wide variety of enforcement provisions
                                                                                                        within the above-mentioned areas. Municipal governments, however, usually have somewhat narrower
                                                                                                        powers; accordingly, any municipality proposing to enact enforcement provisions should first obtain legal
                                                                                                        advice confirming that it has the requisite powers to do so (this will not ordinarily be a problem with respect
                                                                                                        to offences and penalties, since that is the usual mode of compelling compliance with a municipal bylaw).

                                                                                                    These Notes are included for explanatory purposes only and do not form part of the requirements. The number
                                                                                                    that introduces each Note corresponds to the applicable requirement in this Part.


                                                                                                    National Fire Code of Canada 2020                                                                             Division C 2-3
                                                                                                    A-2.2.                                                                                          Division C

                                                                                                        Municipal, territorial and provincial governments should take into account the impact of federal legislation
                                                                                                        on topics similar to those included in the NFC prior to its enactment.

                                                                                                        Inspection of Premises
                                                                                                        Fire safety laws usually include provision for the inspection of premises, the relevant issues of which are
                                                                                                        as follows:
                                                                                                           1. whether all premises or only some may be entered by an inspector
                                                                                                           2. whether an inspector must have a warrant or a court order before entering any premises without
                                                                                                              the consent of the owner or occupant
                                                                                                           3. for what purposes premises may be inspected
                                                                                                           4. at what times an inspector may inspect premises (for example, at any time, at any reasonable time, or




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                                                                                                              only during daylight hours)
                                                                                                           5. what persons, if any, may accompany the inspector
                                                                                                           6. whether the inspector should have the power to conduct any tests on the premises relevant to the
                                                                                                              purposes of the inspection
                                                                                                           7. whether the inspector should have the power to collect and take away for analysis anything relevant
                                                                                                              to the purposes of the inspection and, if so, what obligation the inspector may have with respect
                                                                                                              to the return thereof
                                                                                                           8. what obligation should be imposed upon persons such as the owner or the occupant of the premises
                                                                                                              to provide information and assistance to the inspector
                                                                                                           9. whether it should be an offence for any person to obstruct the inspector in the performance of his or
                                                                                                              her duties

                                                                                                        Acceptances (Including Licences and Permits)
                                                                                                        The NFC considers that fire safety plans and some activities, materials, devices, processes, products,
                                                                                                        procedures or structures will require acceptance by an authority having jurisdiction. In some cases the
                                                                                                        acceptance process may be formalized by a licence or permit; in other cases, the acceptance may be less
                                                                                                        formal.
                                                                                                        In cases where the fire safety law requires an acceptance, the relevant considerations are:
                                                                                                           1. what formalities should be prescribed for application
                                                                                                           2. what information or materials must accompany the application
                                                                                                           3. what criteria should be prescribed for acceptance in specific cases (for example, the minimum
                                                                                                              performance characteristics of an extinguisher, or the minimum length of apprenticeship required for
                                                                                                              a licence to carry on a particular trade)
                                                                                                          4. what conditions may be attached to the acceptance
                                                                                                          5. the circumstances, if any, in which an acceptance may be suspended or cancelled
                                                                                                          6. the rights of appeal, if any, in case of a refusal, suspension or revocation of an acceptance
                                                                                                           7. the legal consequences of not having an acceptance when so required by the fire safety law
                                                                                                        The NFC assumes that acceptance in the form of a permit or licence will be required in the following
                                                                                                        circumstances:
                                                                                                           1. open air fires
                                                                                                           2. the operation of fuel-dispensing stations and bulk plants
                                                                                                           3. the transportation of flammable and combustible liquids
                                                                                                           4. fireworks displays
                                                                                                           5. activities that create a hazard not anticipated in the original design of a building or facility
                                                                                                        In addition, the NFC assumes that personnel involved in the installation and maintenance of fire alarm,
                                                                                                        fire detection and fire suppression systems and the recharging of portable extinguishers will be qualified
                                                                                                        and licenced to perform such activities.

                                                                                                        Offences and Penalties
                                                                                                        The most common kind of enforcement provision is the prescription of offences, with penalties upon
                                                                                                        conviction. The relevant issues for offences and penalties are as follows:
                                                                                                          1. what conduct should be prescribed as an offence (fire safety laws usually consider that any person
                                                                                                             who contravenes any provision of the law is guilty of an offence; in addition, where the fire safety
                                                                                                             law authorizes the issuing of remedial orders, it will usually consider that any person who fails to
                                                                                                             comply with a lawful order is guilty of an offence)
                                                                                                          2. whether the range of penalties should be uniform for all offences or should vary in severity
                                                                                                          3. the nature and extent of the penalty or penalties


                                                                                                    2-4 Division C                                                                     National Fire Code of Canada 2020
                                                                                                    Division C                                                                                           A-2.3.1.

                                                                                                        Remedial Orders
                                                                                                        A possible enforcement option in the event of a contravention of the fire safety law is a provision
                                                                                                        authorizing persons to issue orders requiring that premises be closed or that activities cease, that the
                                                                                                        building be evacuated where an immediate danger to life or property exists, or even that an act already
                                                                                                        done be undone. The relevant considerations in provisions regarding the issuing of remedial orders are:
                                                                                                          1. in what circumstances and by whom can a remedial order be issued (the lawmaker may wish to
                                                                                                             draw a distinction between circumstances where an inspector may issue an order and circumstances
                                                                                                             where an order can only be issued by a court)
                                                                                                          2. what can be ordered and in what circumstances
                                                                                                          3. in what circumstances, if any, an order shall take immediate effect
                                                                                                          4. except for those cases where an order is to take immediate effect, when the order should take effect




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                                                                                                          5. what person may be required to comply with a remedial order
                                                                                                          6. the rights of appeal, if any, in respect of some or all remedial orders
                                                                                                          7. the consequences of failure to comply with a remedial order

                                                                                                        Notification
                                                                                                        The NFC assumes that the authority having jurisdiction will be notified in the following situations:
                                                                                                          1. when activities that could lead to a fire or an explosion are to be undertaken
                                                                                                          2. when fire protection equipment is to be taken out of service
                                                                                                          3. prior to the resurfacing of bowling alleys
                                                                                                          4. when a loss is detected from a storage tank containing flammable or combustible liquids
                                                                                                          5. prior to the removal from service of an underground storage tank for flammable or combustible liquids
                                                                                                          6. prior to fumigation being carried out in a building

                                                                                                    A-2.3.1. Documentation of Alternative Solutions. Beyond the purposes of demonstrating
                                                                                                    compliance and acquiring a building permit, there are other important reasons for requiring that the proponent
                                                                                                    of an alternative solution submit project documentation (i.e. a compliance report) to the authority having
                                                                                                    jurisdiction and for the authority having jurisdiction to retain that documentation for a substantial period
                                                                                                    following the construction of the building or facility:
                                                                                                       • Most jurisdictions require that a building or facility be maintained in compliance with the codes under
                                                                                                          which it was built. Alternative solutions made possible by objective-based codes may have special
                                                                                                          maintenance requirements, which would be described in the documentation.
                                                                                                       • Documentation helps consultants perform code compliance assessments of existing buildings or facilities
                                                                                                          before they are sold and informs current owners or prospective buyers of existing buildings or facilities of
                                                                                                          any limitations pertaining to their future use or development.
                                                                                                       • Documentation provides design professionals with the basic information necessary to design changes to
                                                                                                          an existing building or facility.
                                                                                                       • An alternative solution could be invalidated by a proposed alteration to a building or facility. Designers
                                                                                                          and regulators must therefore know the details of the particular alternative solutions that were integral to
                                                                                                          the original design. Complete documentation should provide insight as to why one alternative solution
                                                                                                          was chosen over another.
                                                                                                       • Documentation is the “paper trail” of the alternative solution negotiated between the designer and the
                                                                                                          regulator and should demonstrate that a rational process led to the acceptance of the alternative solution
                                                                                                          as an equivalency.
                                                                                                       • It is possible that over time a particular alternative solution may be shown to be inadequate. It would be
                                                                                                          advantageous for a jurisdiction to know which buildings or facilities included that alternative solution as
                                                                                                          part of their design: documentation will facilitate this type of analysis.
                                                                                                       • Project documentation provides important information to a forensic team that is called to investigate an
                                                                                                          accident or why a design failed to provide the level of performance expected.
                                                                                                    This subject is discussed in further detail in “Recommended Documentation Requirements for Projects Using
                                                                                                    Alternative Solutions in the Context of Objective-Based Codes,” which was prepared for the CCBFC Task
                                                                                                    Group on Implementation of Objective-Based Codes and is available on the NRC's website.




                                                                                                    National Fire Code of Canada 2020                                                                    Division C 2-5
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2-6 Division C




National Fire Code of Canada 2020
                                                                                                    Index




                                                                                                                                   A                                          outdoor storage of tires, 3.3.3.3.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                                                                              roof access, 2.5.1.3.
                                                                                                                                                                            Administration of the Code, 2.2. [C]
                                                                                                    Abbreviations, 1.4.2.1. [A]                                             Aerosol storage, 3.2.2.1., 3.2.5.
                                                                                                    Absorbent materials                                                     Agricultural occupancies (Group G), 1.4.1.2. [A]
                                                                                                      dangerous goods spills, 3.2.7.11.                                     Agricultural occupancies with no human occupants
                                                                                                      flammable and combustible liquid spills, 4.1.6.3.,                          (Group G, Division 4), 1.4.1.2. [A]
                                                                                                         4.2.7.11., 4.6.9.2.                                                Air-handling system controls, high buildings, 7.2.3.3.
                                                                                                      laboratories, 5.5.3.3.                                                Air inlets and outlets, ventilation for flammable
                                                                                                    Acceptable solutions, 1.1.2.1., 1.2.1.1. [A]                                  vapours, 4.1.7.3., 4.1.7.4.
                                                                                                    Access control (see also Fencing)                                       Air-supported structures, 1.4.1.2. [A], 2.9.
                                                                                                      card- or key-activated dispensers at                                  Aisles (see also Access for firefighting, Individual
                                                                                                         fuel-dispensing stations, 4.6.8.4.                                       storage areas)
                                                                                                      construction and demolition sites, 5.6.3.8.                             business and personal services occupancies, 2.7.1.2.
                                                                                                      dangerous goods storage, 3.2.7.16., 3.3.2.6.                            indoor storage of aerosols, 3.2.5.9.
                                                                                                      electrical equipment vaults, 2.6.3.2.                                   indoor storage of combustible fibres, 3.2.6.4.
                                                                                                      floor finishing operations, 5.4.4.2.                                    indoor storage of flammable and combustible
                                                                                                      fumigation and thermal insecticidal fogging                                 liquids, 4.2.7.8., 4.2.9.3.
                                                                                                         operations, 5.4.3.6.                                                 indoor storage, general, 3.2.2.2.
                                                                                                      laboratories, 5.5.3.1.                                                  industrial occupancies, 2.7.1.2., 3.2.2.2., 4.2.7.8.,
                                                                                                      outdoor storage, general, 3.3.2.6.                                          4.2.9.3.
                                                                                                      outdoor storage tanks at fuel-dispensing stations,                      mercantile occupancies, 2.7.1.2.
                                                                                                         4.6.2.1.                                                             nonfixed seating, 2.7.1.5.
                                                                                                      piers and wharves, 4.8.7.1.                                             open floor areas, 2.7.1.2.
                                                                                                      vacant buildings, 2.4.6.1.                                              outdoor storage of flammable and combustible
                                                                                                    Access to exits (see also Means of egress)                                    liquids, 4.1.5.6.
                                                                                                      definition, 1.4.1.2. [A]                                              Alcohol (see Distilled beverage alcohols)
                                                                                                      prohibited storage in, 3.1.2.5., 4.2.2.1.                             Alternatives to Code requirements
                                                                                                      within covered malls, 2.12.1.4.                                         atmospheric storage tanks, 4.3.1.2.
                                                                                                    Access for firefighting, 2.5.                                             containers for flammable and combustible liquids,
                                                                                                      access panels and windows, 2.5.1.2.                                         4.2.3.3.
                                                                                                      building access, 2.5.1.1.                                               corrosion protection of underground storage
                                                                                                      construction sites, 5.6.1.4., 5.6.3.3., 5.6.3.6., 5.6.3.7.                  tanks, 4.3.10.1.
                                                                                                      covered malls, 2.12.1.5.                                                electrical installations, 5.1.2.2.
                                                                                                      demolition sites, 5.6.1.4., 5.6.3.3., 5.6.3.6., 5.6.3.7.                flammable and combustible liquids, 4.1.1.1.
                                                                                                      fire department connections access, 2.5.1.4., 3.3.2.7.                  high rack storage warehouses, 3.2.1.1.
                                                                                                      to fire protection equipment, 2.5.1.4.                                  minimum level of performance, 1.2.1.1. [A]
                                                                                                      high buildings, 7.1.1.4.                                                non-metallic materials for piping systems, 4.5.2.2.
                                                                                                      indoor storage of dangerous goods, 3.2.7.12.                            outdoor storage areas, height and size, 3.3.2.15.
                                                                                                      indoor storage of flammable and combustible                             spatial separation in covered malls, 2.12.1.3.
                                                                                                         liquids, 4.1.5.6., 4.2.7.8.                                          storage of compressed gasses, 3.1.1.4.
                                                                                                      indoor storage, general, 3.2.2.2.                                       vents for storage tanks in buildings, 4.3.13.10.
                                                                                                      keys for, 2.5.1.3., 2.8.1.3.                                          Alternative solutions, 1.2.1.1. [A]
                                                                                                      maintenance of, 2.5.1.5.                                                documentation, 2.3.1. [C]
                                                                                                      obstructions, 2.5.1.2., 2.5.1.4., 2.5.1.5.                            Ammonium nitrate storage, 3.1.2.2., 3.2.2.1., 3.2.9.
                                                                                                      outdoor storage of flammable and combustible                          Anchorages
                                                                                                         liquids, 4.1.5.6., 4.2.11.3., 4.3.2.4., 4.3.7.5.                     aboveground storage tanks, 4.3.3.3., 4.3.13.11.
                                                                                                      outdoor storage, general, 3.3.2.5., 3.3.2.7.                            distillery storage tanks, 4.10.3.2.

                                                                                                    [A]– Reference occurs in Division A.   [C]– Reference occurs in Division C.   All other references occur in Division B.


                                                                                                    National Fire Code of Canada 2020                                                                                         Index
                                                                                                      indoor storage tanks, 4.3.13.11.                            change in fire hazard, 2.8.2.1.
                                                                                                      underground storage tanks, 4.3.8.9.                         classification, 2.1.2.
                                                                                                    Anhydrous ammonia                                             definition, 1.4.1.2. [A]
                                                                                                      indoor storage, 3.2.8.3.                                    storing ammonium nitrate, 3.2.9.2.
                                                                                                      outdoor storage, 3.3.5.3.                                   storing combustible fibres, 3.2.6.2.
                                                                                                    Appliances (see also Heating, ventilating and               Building services
                                                                                                         air-conditioning (HVAC) systems), 1.4.1.2. [A]           demolition sites, 5.6.1.9.
                                                                                                    Application of Code                                           excavation sites, 5.6.2.1., 5.6.2.2.
                                                                                                      Division A, 1.1.1.1. [A], 1.3.2. [A]                      Building sites (see Construction and demolition sites)
                                                                                                      Division B, 1.1.1.1., 1.3.3. [A]                          Bulk plants, 4.7.
                                                                                                      Division C, 1.1.1.1. [C], 1.3.4. [A]                        application of Code, 4.7.1.1.
                                                                                                      general, 1.1.1.1. [A]                                       dispensing, 4.7.3.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                    Ashes, disposal, 2.4.1.3.                                     fire protection, 4.7.5.
                                                                                                    Assembly occupancies (Group A)                                loading and unloading facilities, 4.7.4.
                                                                                                      combustible materials within tents and                      spill control, 4.7.2.5., 4.7.6.
                                                                                                         air-supported structures, 2.9.3.2.                       storage, 4.7.2.
                                                                                                      definition, 1.4.1.2. [A]                                  Bulk transfer stations, piers and wharves, 4.8.7.
                                                                                                      drapes, curtains and decorative materials, 2.3.2.1.       Business and personal services occupancies (Group
                                                                                                      fire emergency procedures, 2.8.1.1.                            D)
                                                                                                      fire safety plan, 2.8.1.2., 2.8.2.1.                        aisles in open floor areas, 2.7.1.2.
                                                                                                      flaming meals and drinks, 2.4.3.2.                          construction and demolition, 5.6.3.
                                                                                                      flammable and combustible liquids, 4.2.4., 5.5.5.1.         definition, 1.4.1.2. [A]
                                                                                                      hazardous activities in, 2.1.2.2.                           drapes, curtains and decorative materials, 2.3.2.1.
                                                                                                      means of egress, 2.7.1.5.                                   flammable and combustible liquids, 4.2.6., 5.5.5.1.
                                                                                                      nonfixed seating, 2.7.1.5.                                  means of egress, 2.7.1.2.
                                                                                                      occupant load signs, 2.7.1.4.
                                                                                                      open flames in processions, 2.4.3.1.
                                                                                                      supervisory staff, 2.8.1.2.
                                                                                                      tents and air-supported structures, 2.9.3.2., 2.9.3.4.,                                C
                                                                                                         2.9.3.5.
                                                                                                    Atmospheric storage tanks, 1.4.1.2. [A], 4.3.1.2.,
                                                                                                                                                                Carbon monoxide alarms, 6.7.1.1.
                                                                                                         4.3.1.3., 4.3.4.1.                                     Care, home-type care, treatment or detention
                                                                                                    Attendants at fuel-dispensing stations, 4.6.8.1.,
                                                                                                                                                                     occupancies (Group B)
                                                                                                         4.6.8.2., 4.6.8.5.
                                                                                                                                                                  definitions, 1.4.1.2. [A]
                                                                                                    Authority having jurisdiction                                 drapes, curtains and decorative materials, 2.3.2.1.,
                                                                                                      approval of alternative solutions, 2.2.1.2. [C]
                                                                                                                                                                     2.3.2.3.
                                                                                                      definition, 1.4.1.2. [A]
                                                                                                                                                                  fire drill frequency, 2.8.3.2.
                                                                                                      records retained for, 2.2.1.2. [C], 7.1.1.3.                fire emergency procedures, 2.8.1.1.
                                                                                                    Aviation fuel separators, inspection, 2.13.2.5.
                                                                                                                                                                  fire safety plan, 2.8.1.2., 2.8.2.1.
                                                                                                                                                                  flaming meals and drinks, 2.4.3.2.
                                                                                                                                                                  flammable and combustible liquids, 4.2.6., 4.2.10.3.,
                                                                                                                              B                                      5.5.5.1.
                                                                                                                                                                  hazardous activities in, 2.1.2.2.
                                                                                                    Balconies, flammable liquids storage prohibited,              heating, ventilating and air-conditioning system
                                                                                                          4.2.4.4.                                                   switches, 2.6.1.6.
                                                                                                    Balloons, flammable gases prohibited, 2.4.4.2.                open flames in processions, 2.4.3.1.
                                                                                                    Basements                                                     portable extinguishers, 2.1.5.1.
                                                                                                       definition, 1.4.1.2. [A]                                   smoke alarms, 2.1.3.3.
                                                                                                       pits for submerged pumps, 4.5.9.3., 4.6.2.6.               supervisory staff, 2.8.1.2.
                                                                                                       prohibited in process plants, 4.9.3.3.                     textiles, 2.3.2.3.
                                                                                                       storage of flammable and combustible liquids,            Cargo hose for flammable and combustible liquids,
                                                                                                          4.1.5.8., 4.2.5.3., 4.3.13.4., 4.9.3.3.                    4.8.7.2., 4.8.7.3., 4.8.8., 4.8.11.3.
                                                                                                    Blower engines for air-supported structures, 2.9.3.6.       Cargo pumps for flammable and combustible liquids,
                                                                                                    Boarding houses, 2.11.                                           4.8.9.
                                                                                                    Boil-over liquids, 4.3.2.1.                                 Cathodic protection (see Corrosion protection)
                                                                                                    Bonding (see Grounding and bonding)                         Central alarm and control facility, high buildings,
                                                                                                    Bowling alleys (see Floor finishing)                             7.2.4.
                                                                                                    Breeching, 1.4.1.2. [A]                                     Change in fire hazard, 2.1.2.2., 2.1.3.1., 2.1.3.5., 2.8.2.1.,
                                                                                                    Buildings                                                        2.12.1.2.
                                                                                                       adjacent to construction and demolition sites,           Chemical wastes, 5.5.5.7.
                                                                                                          5.6.1.2.                                              Chimneys, 1.4.1.2. [A], 2.6.1.4., 2.6.1.5.


                                                                                                    Index                                                                                   National Fire Code of Canada 2020
                                                                                                    Classification                                                       inspection and maintenance, 2.2.2.4.
                                                                                                      aerosols, 3.2.5.2.                                                 protective guarding devices, 2.2.2.3.
                                                                                                      buildings, 2.1.2.                                                  smoke control measures in high buildings, 7.2.3.1.,
                                                                                                      compressed gases, 3.1.2.1., 3.2.7.1.                                  7.3.
                                                                                                      corrosive substances, 3.2.7.1.                                     where required, 2.2.2.1.
                                                                                                      dangerous goods, 3.1.2.1., 3.2.7.1., 4.1.2., 4.2.2.3.            Coal bins, 2.6.1.2.
                                                                                                      dedicated storage areas for aerosols, 3.2.5.6.,                  Combustible construction
                                                                                                         3.2.5.7.                                                        additional requirements for construction and
                                                                                                      flammable and combustible liquids, 3.1.2.1.,                          demolition, 5.6.3.
                                                                                                         3.2.7.1., 4.1.2., 4.2.2.3.                                      clearances for chimneys, flue pipes and appliances,
                                                                                                      flammable solids, 3.2.7.1.                                            2.6.1.5.
                                                                                                      hazardous locations for electrical equipment,                      definition, 1.4.1.2. [A]




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                                                                                                         4.1.4.1., 5.1.2.1., 5.5.3.4.                                    indoor storage of flammable gases, 3.2.8.2.
                                                                                                      heated combustible liquids, 4.1.2.3.                               piers and wharves, 4.8.9.2.
                                                                                                      major occupancies, 2.1.2.                                        Combustible dusts
                                                                                                      oxidizing substances, 3.2.7.1.                                     collectors and collecting systems, 5.3.1.2., 5.3.1.3.,
                                                                                                      poisonous and infectious substances, 3.2.7.1.                         5.3.1.4., 5.3.1.8., 5.3.1.9., 5.3.2.1., 5.3.3.1.
                                                                                                      radioactive materials, 3.2.7.1.                                    definition, 1.4.1.2. [A]
                                                                                                      reactive substances, 3.1.2.6., 3.2.7.1.                            dust-producing processes, 5.3.
                                                                                                      used lubricating oil, 4.1.2.4.                                     electrical installations, 5.1.2.1.
                                                                                                      water-miscible liquid mixtures, 4.1.2.2.                           hot works, 5.2.3.2.
                                                                                                    Clearances                                                           ignition sources, 5.3.1.10.
                                                                                                      aboveground outdoor piping for flammable and                     Combustible fibres
                                                                                                         combustible liquids, 4.5.6.4.                                   baled, 3.2.6.4.
                                                                                                      from building openings, 4.1.7.3., 4.3.5.2., 4.3.6.4.,              definition, 1.4.1.2. [A]
                                                                                                         4.3.11.3., 4.3.12.3., 4.5.9.1., 4.6.3.3., 4.6.6.4.              electrical installations, 3.1.4., 5.1.2.1.
                                                                                                      from buildings and property lines, 4.2.11.1.,                      hot works, 5.2.3.2.
                                                                                                         4.3.2.1., 4.3.8.2., 4.5.9.1., 4.6.3.3., 4.6.6.4., 4.7.2.4.,     indoor storage, 3.2.1.1., 3.2.2.1., 3.2.6.
                                                                                                         4.7.4.1., 4.9.2.1.                                              loose, 3.2.6.3.
                                                                                                      bulk plant loading and unloading facilities, 4.7.4.1.            Combustible liquids (see also Flammable and
                                                                                                      combustible fibres, 3.2.6.4.                                          combustible liquids), 1.4.1.2. [A]
                                                                                                      construction sites, 5.6.1.8.                                     Combustible materials
                                                                                                      demolition sites, 5.6.1.8.                                         accumulation and removal, 2.4.1.1., 4.1.5.4., 5.2.3.2.,
                                                                                                      floors and roofs, 3.2.2.3., 4.2.7.7.                                  5.3.2.2., 5.6.1.20., 5.6.3.4.
                                                                                                      heating equipment, 2.6.1.5.                                        clearances from heating equipment, 2.6.1.5.
                                                                                                      indoor container storage of flammable and                          construction sites, 2.8.2.11.
                                                                                                         combustible liquids, 4.2.7.7.                                   daycare centres, 2.10.3.
                                                                                                      indoor storage of dangerous goods, 3.2.2.3.                        demolition sites, 2.8.2.11.
                                                                                                      indoor storage, general, 3.2.2.3.                                  deposits and residue, 5.5.3.4., 5.5.3.6., 5.5.5.6.
                                                                                                      indoor storage tanks for flammable and                             indoor storage of, 3.2.1.1.
                                                                                                         combustible liquids, 4.3.14.2.                                  laboratories, 5.5.3.2., 5.5.3.5.
                                                                                                      liquefied petroleum gas cylinders and tanks,                       near compressed gases, 3.2.8.3.
                                                                                                         4.3.2.3.                                                        near dangerous goods, 3.2.7.17., 3.3.4.4., 5.5.3.2.
                                                                                                      outdoor container storage of flammable and                         near flammable and combustible liquids, 4.1.5.4.,
                                                                                                         combustible liquids, 4.2.11.1., 4.7.2.4.                           4.2.7.10.
                                                                                                      outdoor storage, 3.3.2.3., 3.3.3.2.                                near hot works, 5.2.3.
                                                                                                      outdoor storage of compressed gases, 3.3.5.3.,                     near open flames, 2.4.3.3.
                                                                                                         4.3.2.3.                                                        near piping for flammable and combustible
                                                                                                      outdoor storage of dangerous goods, 3.3.4.2.                          liquids, 4.5.6.9.
                                                                                                      outdoor storage tanks for flammable and                            outdoor storage of, 3.3.
                                                                                                         combustible liquids, 4.3.2.1., 4.3.2.3., 4.7.4.1.               storage of, 2.4.1.2.
                                                                                                      piers and wharves, 4.8.2.1.                                        tents and air-supported structures, 2.9.3.2.
                                                                                                      secondary containment walls, 4.3.2.3., 4.3.7.4.                  Commercial cooking equipment, 2.6.1.9.
                                                                                                      sprinkler deflectors, 3.2.2.3., 4.2.7.7.                         Compliance, 1.2.1.1. [A]
                                                                                                      ventilation exhaust air outlets, 4.1.7.4.                        Compressed gases (see also Dangerous goods)
                                                                                                      walls, 3.2.2.3., 4.2.7.7., 4.3.14.2.                               ambient conditions, 3.1.2.2., 3.2.7.3.
                                                                                                    Closed containers (see also Containers for flammable                 classification, 3.1.2.1., 3.2.7.1.
                                                                                                         and combustible liquids), 1.4.1.2. [A]                          corrosive gases, 3.2.8.3., 3.3.5.3.
                                                                                                    Closures                                                             cylinders, 3.1.2.5., 5.2.2.4.
                                                                                                      damaged, 2.2.2.2.                                                  electrical installations, 3.1.4., 5.1.2.
                                                                                                      definition, 1.4.1.2. [A]


                                                                                                    National Fire Code of Canada 2020                                                                                      Index
                                                                                                      flammable, 2.4.4.2., 2.12.1.7., 2.12.1.9., 3.1.1.4.,              laboratories, 4.1.1.1., 5.5.5.2.
                                                                                                         3.2.8.2., 3.3.5.3., 4.3.2.3., 4.6.1.1., 5.2.3.4., 5.4.1.1.     mercantile occupancies, 4.2.5.
                                                                                                      fuel-dispensing stations, 3.1.1.4., 4.6.1.1., 4.6.3.3.            outdoor storage, 4.2.11.
                                                                                                      hot works, 5.2.2.4., 5.2.3.4., 5.2.3.5.                           plastic or glass containers, 4.2.3.3.
                                                                                                      indoor cylinder storage, 3.2.7.5., 3.2.7.9., 3.2.8.,              portable, 4.2.1.1., 4.2.3., 4.2.8.2.
                                                                                                         5.5.5.3.                                                       prohibited locations, 4.2.2.1.
                                                                                                      laboratories, 5.5.5.3.                                            refrigerated storage, 4.1.4.1., 5.5.5.4.
                                                                                                      liquefied petroleum gas, 3.1.1.4., 4.3.2.3., 4.6.1.1.,            residential occupancies, 4.2.4.
                                                                                                         4.6.3.3.                                                       safety containers, 4.2.3.1., 4.2.6.4.
                                                                                                      manufacturing, filling, distributing, 3.1.1.4.                    self-service storage buildings, 4.2.12.
                                                                                                      natural gas, 3.1.1.4., 4.6.1.1., 4.6.3.3.                         separation from other dangerous goods, 4.2.2.3.,
                                                                                                      outdoor cylinder storage, 3.1.1.4., 3.1.2.5., 3.3.5.                 4.2.6.5., 4.2.7.9., 4.2.8.3.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                      oxidizing gases, 3.2.8.3.                                         storage arrangements, 4.2.2.2., 4.2.4.2., 4.2.5.2.,
                                                                                                      piping, 5.2.3.4., 5.2.3.5., 5.5.5.3.                                 4.2.6.3., 4.2.7.5., 4.2.8.2., 4.2.9.1., 4.2.9.3., 4.2.10.,
                                                                                                      poisonous gases, 3.2.8.3., 3.3.5.3.                                  4.2.11.1.
                                                                                                      prohibited locations, 3.1.2.5.                                    storage cabinets, 4.2.10.
                                                                                                      propane, 3.1.1.4., 4.3.2.3., 4.6.1.1., 4.6.3.3.                 Contaminated soil, 4.1.6.3., 4.3.8.8.
                                                                                                    Conflicting requirements, 1.5.1.2. [A]                            Corrosion protection
                                                                                                    Construction and demolition sites                                   aboveground storage tanks for flammable and
                                                                                                      access stairs, 5.6.3.7.                                              combustible liquids, 4.3.1.5., 4.3.3.1., 4.10.3.1.
                                                                                                      building services, 5.6.1.9.                                       ammonium nitrate, 3.2.9.2.
                                                                                                      business and personal services occupancies, 5.6.3.                containers for flammable and combustible liquids,
                                                                                                      continuity of fire protection, 5.6.1.13.                             4.2.3.3., 4.10.3.1.
                                                                                                      excavations, 5.6.2.                                               dangerous goods, 3.2.7.7., 5.5.2.1.
                                                                                                      fire safety practices, 5.6.1.                                     piping for flammable and combustible liquids,
                                                                                                      residential occupancies, 5.6.3.                                      4.5.3., 4.6.2.4., 4.10.5.1.
                                                                                                      site identification, 5.6.3.3.                                     underground storage tanks, 4.3.1.5., 4.3.8.4.,
                                                                                                      site security, 5.6.3.8.                                              4.3.8.5., 4.3.10.
                                                                                                    Containers for dangerous goods                                    Corrosive substances, 3.2.7.1., 3.2.8.3., 3.3.5.3.
                                                                                                      compressed gases, 3.1.2.5., 3.2.8.                              Covered malls
                                                                                                      damaged or leaking, 3.2.7.4., 3.3.4.7.                            access to exits, 2.12.1.4.
                                                                                                      identification, 3.2.7.13., 3.3.4.5., 5.5.5.3., 5.5.5.7.           access to fire protection equipment, 2.12.1.5.
                                                                                                      intermodal shipping containers, 3.3.4.8.                          decorative materials, 2.12.1.6.
                                                                                                      organic peroxides, 3.2.7.5.                                       fire safety plan, 2.12.1.1.
                                                                                                      reactive substances, 3.1.2.6.                                     flammable and combustible liquids and gases,
                                                                                                      standards, 3.1.2.3.                                                  2.12.1.7.
                                                                                                      storage arrangements, 3.1.2.4., 3.2.7.5., 3.3.4.2.                fuelled equipment, 2.12.1.8.
                                                                                                    Containers for flammable and combustible liquids,                   propane-fuelled vehicles, 2.12.1.9.
                                                                                                         4.2.                                                           spatial separation, 2.12.1.3.
                                                                                                      assembly occupancies, 4.2.4.                                      sprinkler system, 2.12.1.2.
                                                                                                      basement storage, 4.1.5.8., 4.2.5.3.                              uses, 2.12.1.1.
                                                                                                      bulk plants, 4.7.2.1., 4.7.2.4.                                 Crude petroleum storage, 4.3.1.2.
                                                                                                      business and personal services occupancies, 4.2.6.              Curtains, 2.3.2.1., 2.3.2.3.
                                                                                                      care, home-type care, treatment or detention                    Cylinders, gases (see Compressed gases)
                                                                                                         occupancies, 4.2.6.
                                                                                                      closed containers, 3.2.1.1., 3.2.3.1., 3.2.3.2., 3.2.3.3.,
                                                                                                         4.1.7.2., 4.2.1.1., 4.2.3., 4.2.5.3., 4.2.6.2., 4.2.7.1.,
                                                                                                         4.2.8.2., 4.2.10.1., 4.10.2.1., 4.10.4.2., 5.5.5.4.
                                                                                                                                                                                                   D
                                                                                                      design and construction, 4.2.3.1.
                                                                                                      dispensing and transfer, 4.1.8.3., 4.2.5.4., 4.2.7.4.,          Dangerous goods (see also Containers for dangerous
                                                                                                         4.2.8.3., 4.2.9., 4.7.3.3.                                        goods)
                                                                                                      distilleries, 4.10.3., 4.10.4.                                    access control, 3.2.7.16., 3.3.2.6., 5.5.3.1.
                                                                                                      drums, 4.2.3.1., 4.10.3.1., 4.10.4.1., 4.10.4.2.                  access for firefighting, 3.2.7.12.
                                                                                                      dwelling units, 4.1.5.8., 4.2.4.5., 4.2.4.6.                      ambient conditions, 3.1.2.2., 3.1.2.6., 3.2.7.3., 3.3.4.7.
                                                                                                      educational facilities, 4.2.6.                                    classification, 3.1.2.1., 3.2.7.1., 4.1.2., 4.2.2.3.
                                                                                                      fuel-dispensing stations, 4.6.2.2.                                construction and demolition sites, 5.6.1.18.
                                                                                                      grounding and bonding, 4.1.8.2.                                   definition, 1.4.1.2. [A]
                                                                                                      handling, 4.1.8.1., 4.2.                                          fire safety plan, 2.8.2.3. - 2.8.2.5., 4.1.5.5.
                                                                                                      identification, 4.2.3.2., 5.5.5.7.                                fire safety practices, 2.4.4.
                                                                                                      incidental use, 4.2.8.                                            fire suppression systems, 2.1.3.5., 3.2.7.5., 3.2.7.9.
                                                                                                      industrial occupancies, 4.2.7.                                    indoor storage, 3.2.1.1., 3.2.2.1., 3.2.7.


                                                                                                    Index                                                                                         National Fire Code of Canada 2020
                                                                                                      interior finish materials, 3.2.7.8., 5.5.2.1.                       prohibited near ammonium nitrate storage, 3.2.9.3.
                                                                                                      laboratories, 5.5.5.                                                remote pumping systems, 4.6.6.
                                                                                                      maximum quantities, 3.2.7.9.                                        rooms for, 4.2.9.
                                                                                                      outdoor storage, 3.3.2., 3.3.4.                                     separation from ignition sources, 4.2.8.3.
                                                                                                      packages and containers, 3.1.2.3., 3.1.2.5., 3.1.2.6.,              shut-off devices, 4.6.4.
                                                                                                         3.2.7.4., 3.2.7.5., 3.2.7.13., 3.3.4.2., 3.3.4.5., 3.3.4.7.,     tank vehicles, 4.11.3.
                                                                                                         5.5.5.3., 5.5.5.7.                                               ventilation measures, 4.1.7.2.
                                                                                                      placards, 3.2.7.14.                                               Distilled beverage alcohols
                                                                                                      refrigerated storage, 3.1.2.2., 4.1.4.1., 5.5.5.4.                  definition, 1.4.1.2. [A]
                                                                                                      separation from combustibles, 3.2.7.17., 3.3.4.4.,                  distilleries, 4.10.
                                                                                                         5.5.3.2.                                                         indoor storage, 3.2.1.1., 3.2.2.1., 3.2.3.1., 3.2.3.2.,
                                                                                                      separation from other dangerous goods, 3.2.7.6.,                        3.2.3.3.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                         3.3.4.3., 4.2.2.3., 4.2.6.5., 4.2.7.9., 4.2.8.3.               Distilleries
                                                                                                      small quantity exemptions, 3.2.7.1.                                 building classification, 4.10.2.1.
                                                                                                      spill control, 3.2.7.4., 3.2.7.11., 3.3.2.13., 5.5.3.3.             definition, 1.4.1.2. [A]
                                                                                                      storage arrangements, 3.1.2.4., 3.2.7.5., 3.3.4.2.                  fire protection, 4.10.8.
                                                                                                      training, 3.2.7.15., 3.3.4.6., 5.5.3.1.                             piping and pumping systems, 4.10.5.
                                                                                                      transport, 3.1.2.5.                                                 scope of Code, 4.10.1.1.
                                                                                                    Daycare centres                                                       spill control, 4.10.7.
                                                                                                      combustible materials, 2.10.3.                                      storage, 4.10.4.
                                                                                                      construction, 2.10.1.1.                                             storage tanks and containers, 4.10.3.
                                                                                                      fire drill frequency, 2.8.3.2.                                      ventilation, 4.10.6.
                                                                                                      fire prevention inspections, 2.10.4.1.                            Documentation (see also Records)
                                                                                                      handicapped children, 2.10.2.1.                                     of alternative solutions, 2.3.1. [C]
                                                                                                      staffing ratios, 2.10.2.1.                                          fire safety plan, 2.8.2.1., 2.8.2.12.
                                                                                                    Decorative materials                                                  retention, 2.3.1.2. [C]
                                                                                                      covered malls, 2.12.1.6.                                          Doors in fire separations, 2.2.2.4.
                                                                                                      flame resistance, 2.3.2.1.                                        Doors in means of egress
                                                                                                      flame-spread rating, 2.3.1.3.                                       obstruction prevention, 2.7.1.8.
                                                                                                    Dedicated storage areas for aerosols, 3.2.5.4., 3.2.5.6.,             smoke control measures in high buildings, 7.3.1.2.
                                                                                                         3.2.5.7.                                                         test intervals, 2.7.2.1.
                                                                                                    Definitions, 1.2.1., 1.4.1. [A]                                       test records, 2.7.2.2.
                                                                                                    Demolition sites (see Construction and demolition                   Downspouts for tank vehicles, 4.7.4.6.
                                                                                                         sites)                                                         Drainage for flammable and combustible liquids (see
                                                                                                    Detention occupancies (see Care, home-type care,                          also Spill control), 4.1.6.
                                                                                                         treatment or detention occupancies)                              distilleries, 4.10.7.
                                                                                                    Dikes (see Secondary containment for aboveground                      fuel-dispensing stations, 4.6.3.3.
                                                                                                         storage tanks)                                                   helicopter landing areas, 2.13.2.5.
                                                                                                    Dipping and coating processes, 5.4.6.                                 piping for flammable and combustible liquids in
                                                                                                    Dispensers for flammable and combustible liquids                          trenches, 4.5.6.10.
                                                                                                      bulk plants, 4.7.3.2.                                               secondary containment for aboveground storage
                                                                                                      card- or key-activated, 4.6.4.2., 4.6.8.3., 4.6.8.4.                    tanks, 4.3.7.8.
                                                                                                      containers, 4.2.9.4.                                                spills and leaks, 4.1.6.2., 4.1.6.3.
                                                                                                      fuel-dispensing stations, 4.6.3., 4.6.4., 4.6.8.3.,               Drapes, 2.3.2.1., 2.3.2.3.
                                                                                                         4.6.8.4.                                                       Drums (see Containers for flammable and
                                                                                                      outdoor storage areas, 3.3.2.12.                                        combustible liquids)
                                                                                                      shut-off devices, 4.6.4.                                          Dry cleaning plants, 5.4.2.
                                                                                                      shut-off valves, 4.5.7.2., 4.6.6.3.                               Dry powder coating operations, 5.4.5.
                                                                                                    Dispenser sumps, 1.4.1.2. [A], 4.3.9., 4.6.3.2.                     Ducts
                                                                                                    Dispensing and transfer of flammable and                              hot works, 2.6.1.8.
                                                                                                         combustible liquids, 4.1.8.                                      inspection and cleaning, 2.6.1.3., 2.6.1.9., 5.5.3.6.
                                                                                                      bulk plants, 4.7.3.                                                 ventilation for flammable vapours, 4.1.7.7.
                                                                                                      fuel-dispensing stations, 4.6.3.                                    ventilation shafts, 2.6.1.7.
                                                                                                      industrial occupancies, 4.2.7.4.                                  Dumpsters, 2.4.1.1.
                                                                                                      loading and unloading facilities, 4.7.4.                          Dust collection
                                                                                                      mercantile occupancies, 4.2.5.4.                                    dust collectors, 5.3.1.4.
                                                                                                      methods of transfer in piping systems, 4.5.9.                       dust removal, 5.3.1.2.
                                                                                                      operating procedures, 4.5.10.                                       electrical interlocks, 5.3.1.8.
                                                                                                      organic peroxides, 3.2.7.5.                                         grain handling and storage, 5.3.3.1.
                                                                                                      outdoor storage areas, 3.3.2.12.                                    separators, 5.3.1.9.
                                                                                                      piers and wharves, 4.8.7., 4.8.8., 4.8.11.


                                                                                                    National Fire Code of Canada 2020                                                                                       Index
                                                                                                      systems, 5.3.1.3.                                        laboratories, 5.5.3.1.
                                                                                                      woodworking operations, 5.3.2.1.                         piers and wharves, 4.8.6.
                                                                                                    Dust-producing processes                                   piping for flammable and combustible liquids,
                                                                                                      application of Code, 5.3.1.1.                                4.5.9.4., 4.5.10.1.
                                                                                                      explosion prevention, 5.3.1.7.                           process plants, 4.9.4.4.
                                                                                                      explosion venting, 5.3.1.6.                              refineries, 4.9.4.4.
                                                                                                      grain handling and storage facilities, 5.3.3.            tank vehicles, 4.11.3.4.
                                                                                                      grounding and bonding of equipment, 5.3.1.5.             training of supervisory staff, 2.8.1.2.
                                                                                                      ignition sources, 5.3.1.10.                            Emergency power systems
                                                                                                      woodworking operations, 5.3.2.                           elevators, 7.2.2., 7.2.3.2.
                                                                                                    Dwelling units                                             emergency lights, 6.5.1.7.
                                                                                                      air-conditioning and ventilating system switches,        exit signs, 6.5.1.8.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                         2.6.1.6.                                              fuel supply, 6.5.1.5.
                                                                                                      definition, 1.4.1.2. [A]                                 high buildings, 7.2.2.1.
                                                                                                      flammable and combustible liquids, 4.1.5.8.,             inspection, testing and maintenance, 6.5.1.
                                                                                                         4.2.4.5., 4.2.4.6.                                    instructions for switching to, 6.5.1.3.
                                                                                                      smoke alarms, 2.1.3.3.                                   records, 6.5.1.4.
                                                                                                                                                               unit equipment, 6.5.1.6.
                                                                                                                                                             Emergency valves, 4.5.10.3.
                                                                                                                              E                              Encapsulated mass timber construction
                                                                                                                                                               additional requirements for construction and
                                                                                                                                                                   demolition, 5.6.3., 5.6.4.
                                                                                                    Earthquake protection, aboveground storage tanks,
                                                                                                                                                               clearances for chimneys, flue pipes and appliances,
                                                                                                          4.3.3.2., 4.3.13.11.
                                                                                                                                                                   2.6.1.5.
                                                                                                    Educational facilities
                                                                                                                                                               damaged or removed encapsulation materials,
                                                                                                       fire drill frequency, 2.8.3.2.
                                                                                                                                                                   2.2.3.1.
                                                                                                       flammable and combustible liquids, 4.2.6., 5.5.5.1.
                                                                                                                                                               definition, 1.4.1.2. [A]
                                                                                                    Egress (see Means of egress)
                                                                                                                                                               protective encapsulation, 5.6.4.3.
                                                                                                    Electrical equipment vaults, 2.6.3.
                                                                                                    Electrical installations                                   standpipe installation, 5.6.4.2.
                                                                                                                                                             Engines (see Internal combustion engines)
                                                                                                       demolition sites, 5.6.1.9.
                                                                                                                                                             Ethanol production, 5.4.7.
                                                                                                       dispensers at fuel-dispensing stations, 4.6.3.3.
                                                                                                       equipment vaults, 2.6.3.                              Evacuation of buildings, procedures, 2.8.2.1.
                                                                                                                                                             Excavation
                                                                                                       fire safety practices, 2.4.7.
                                                                                                                                                               maintaining existing services, 5.6.2.2.
                                                                                                       flammable and combustible liquids, 4.1.4.
                                                                                                       floor finishing, 5.4.4.4.                               services shut-off, 5.6.2.1.
                                                                                                                                                             Exhaust systems, woodworking, 5.3.2.1.
                                                                                                       fumigation and thermal insecticidal fogging,
                                                                                                                                                             Exit doors (see Doors in means of egress)
                                                                                                          5.4.3.4.
                                                                                                       hazardous locations, 3.1.4.1., 4.1.4.1., 5.1.2.1.     Exit lighting, 2.7.3.
                                                                                                                                                             Exits (see also Means of egress)
                                                                                                       heating of piping for flammable and combustible
                                                                                                                                                               definition, 1.4.1.2. [A]
                                                                                                          liquids, 4.5.8.3., 4.5.8.4.
                                                                                                       laboratories, 5.5.3.4., 5.5.3.6.                        stairs, snow and ice clearing, 2.7.1.7.
                                                                                                                                                             Exit signs, 2.7.3., 6.5.1.8.
                                                                                                       refrigerators for flammable and combustible
                                                                                                                                                             Explosion prevention systems, 4.3.2.5., 4.9.4.2., 5.3.1.7.
                                                                                                          liquids, 5.5.5.4.
                                                                                                       tents and air-supported structures, 2.9.3.1.          Explosion venting
                                                                                                                                                               container storage of flammable and combustible
                                                                                                       use and maintenance, 2.4.7., 5.5.3.6.
                                                                                                                                                                   liquids, 4.2.9.5.
                                                                                                    Elevators in high buildings
                                                                                                       maintenance, 7.1.1.4.                                   dust-producing processes, 5.3.1.6., 5.3.3.1.
                                                                                                                                                               flammable gas storage, 3.2.8.2.
                                                                                                       recall in fire emergencies, 7.2.3.2.
                                                                                                                                                               grain handling and storage, 5.3.3.1., 5.3.3.2.
                                                                                                       testing, 7.2.2.
                                                                                                    Emergency lighting                                         processing buildings, 4.9.3.1.
                                                                                                                                                               processing equipment, 4.9.2.1., 4.9.4.2.
                                                                                                       inspection, 6.5.1.6., 6.5.1.7.
                                                                                                                                                               storage tanks for flammable and combustible
                                                                                                       installation and maintenance, 2.7.3.1.
                                                                                                    Emergency planning (see also Fire safety plan)                 liquids, 4.3.14.3.
                                                                                                                                                             Explosives
                                                                                                       application of Code, 2.8.1.1.
                                                                                                                                                               display fireworks, 5.1.1.3.
                                                                                                       fire drills, 2.8.3.
                                                                                                       fire safety plan, 2.8.2.                                handling and use, 5.1.1.2.
                                                                                                                                                               storage, 3.1.1.3.
                                                                                                       flammable and combustible liquids, 4.1.5.5.
                                                                                                                                                             Exterior passageways, 2.7.1.7.
                                                                                                       fuel-dispensing stations, 4.6.4.2., 4.6.8.4.
                                                                                                       hazardous locations, 5.1.5.
                                                                                                       high buildings, 2.8.2.2.
                                                                                                       keys for fire protection systems, 2.8.1.3.


                                                                                                    Index                                                                              National Fire Code of Canada 2020
                                                                                                                                  F                                      fire alarm systems, 6.3.
                                                                                                                                                                         portable extinguishers, 6.2.
                                                                                                                                                                         smoke alarms, 6.7.
                                                                                                    Farm buildings
                                                                                                                                                                         voice communication systems, 6.3.
                                                                                                       below-floor storage of liquid manure, 2.14.3.2.
                                                                                                                                                                         water-based fire protection systems, 6.4.
                                                                                                       containers and tanks, 4.12.1.2.
                                                                                                                                                                      Fire protection materials, 2.2.1.2.
                                                                                                       control of gases and vapours, 2.14.3.1.
                                                                                                                                                                      Fire-protection rating, 1.4.1.2. [A]
                                                                                                       definition, 1.4.1.2. [A]
                                                                                                                                                                      Fire protection systems (see also Fire alarm systems,
                                                                                                       electrical systems, 2.14.1.1.
                                                                                                                                                                            Fire suppression systems, Sprinkler systems,
                                                                                                       mechanical equipment, 2.14.1.2.
                                                                                                                                                                            Standpipe and hose systems)
                                                                                                       pesticide storage areas, 4.12.1.3.
                                                                                                                                                                         access to fire protection equipment, 2.5.1.4.,
                                                                                                       warning signs, 2.14.2.1.
                                                                                                                                                                            2.12.1.5., 3.2.2.2., 3.3.2.7.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                    Fencing
                                                                                                                                                                         access to keys, 2.8.1.3.
                                                                                                       aerosol storage, 3.2.5.6.
                                                                                                                                                                         change in fire hazard, 2.1.3.1., 2.1.3.5.
                                                                                                       bulk plants, 4.7.2.6., 4.7.3.2.
                                                                                                                                                                         commercial cooking equipment, 2.6.1.9.
                                                                                                       construction and demolition sites, 5.6.3.8.
                                                                                                                                                                         employee training, 3.2.7.15., 4.5.10.2.
                                                                                                       outdoor storage of compressed gases, 3.3.5.2.
                                                                                                                                                                         grain handling and storage, 5.3.3.4.
                                                                                                       outdoor storage of flammable and combustible
                                                                                                                                                                         inspection, maintenance and testing, 2.1.3.6.
                                                                                                          liquids, 4.2.11.5.
                                                                                                                                                                         integrated with life safety systems, 2.1.3.7., 6.8.
                                                                                                       outdoor storage, general, 3.3.2.6.
                                                                                                                                                                         maintenance, 2.1.3.1., 2.1.3.6., 6.1.1.2.
                                                                                                       piers and wharves, 4.8.7.1.
                                                                                                                                                                         outdoor storage, general, 3.3.2.7., 3.3.2.15.
                                                                                                    Fire alarm systems
                                                                                                                                                                         outdoor storage tanks for flammable and
                                                                                                       change in fire hazard, 2.1.3.1.
                                                                                                                                                                            combustible liquids, 4.3.2.5.
                                                                                                       construction and demolition sites, 5.6.1.17.
                                                                                                                                                                         processing equipment, 4.9.2.1.
                                                                                                       design and installation, 2.1.3.1.
                                                                                                                                                                         process plants, 4.9.4.3.
                                                                                                       fire safety plan, 2.8.2.1., 2.8.2.5.
                                                                                                                                                                         shutdown for repairs, 6.1.1.4.
                                                                                                       inspection, tests and maintenance, 6.3.1., 7.2.4.
                                                                                                                                                                         special hazards, 2.1.3.5., 4.1.5.1., 6.6.1.1.
                                                                                                       shutdown for repairs, 6.1.1.4.
                                                                                                                                                                         tents and air-supported structures, 2.9.3.5.
                                                                                                       signage, 2.8.2.14.
                                                                                                                                                                      Fire pumps, 6.4.1.1.
                                                                                                       smoke alarms, 2.1.3.3., 6.7.1.1.
                                                                                                                                                                      Fire-resistance rating, 1.4.1.2. [A]
                                                                                                       tents and air-supported structures, 2.9.3.5.
                                                                                                                                                                      Fire safety devices, 2.1.3.6.
                                                                                                       voice communication, 2.1.3.2., 2.9.3.5., 6.3.
                                                                                                                                                                      Fire safety plan (see also Emergency planning), 2.8.2.
                                                                                                    Fire compartments (see also Fire separations),
                                                                                                                                                                         assembly occupancies, 2.8.1.1., 2.8.1.2., 2.8.2.1.
                                                                                                          1.4.1.2. [A]
                                                                                                                                                                         care, home-type care, treatment or detention
                                                                                                    Fire dampers (see Closures), 1.4.1.2. [A], 2.2.2.4.
                                                                                                                                                                            occupancies, 2.8.1.1., 2.8.1.2., 2.8.2.1.
                                                                                                    Fire detection systems
                                                                                                                                                                         commercial cooking equipment, 2.6.1.9.
                                                                                                       design and installation, 2.1.3.1.
                                                                                                                                                                         construction sites, 2.8.2.11.
                                                                                                       inspection and tests, 6.3.1.2.
                                                                                                                                                                         covered malls, 2.12.1.1.
                                                                                                    Fire drills
                                                                                                                                                                         dangerous goods, 2.8.2.3., 2.8.2.4., 3.2.7.14.
                                                                                                       in fire safety plan, 2.8.2.1.
                                                                                                                                                                         daycare centres, 2.10.4.1.
                                                                                                       frequency, 2.8.3.2.
                                                                                                                                                                         demolition sites, 2.8.2.11.
                                                                                                       laboratories, 5.5.3.1.
                                                                                                                                                                         distribution, 2.8.2.13.
                                                                                                       procedures, 2.8.3.1.
                                                                                                                                                                         flammable and combustible liquids, 4.1.5.5., 4.1.6.1.
                                                                                                    Fire emergency procedures (see Emergency planning)
                                                                                                                                                                         hazardous processes and operations, 2.8.2.9., 5.1.5.,
                                                                                                    Fire endurance, storage cabinets for flammable and
                                                                                                                                                                            5.2.3.7.
                                                                                                          combustible liquids, 4.2.10.5.
                                                                                                                                                                         high buildings, 2.8.2.2.
                                                                                                    Fire extinguishers (see Portable extinguishers)
                                                                                                                                                                         hotels and motels, 2.8.2.14.
                                                                                                    Firefighting procedures (see also Access for
                                                                                                                                                                         hot works, 2.8.2.9., 5.2.3.7.
                                                                                                          firefighting)
                                                                                                                                                                         indoor storage, general, 2.8.2.4.
                                                                                                       emergency planning, 2.8.
                                                                                                                                                                         laboratories, 2.8.2.10., 5.5.3.1.
                                                                                                       employee training, 3.2.7.15., 4.5.10.2.
                                                                                                                                                                         measures in, 2.8.2.1., 2.8.2.4.
                                                                                                    Fire hazards
                                                                                                                                                                         outdoor storage, general, 2.8.2.5.
                                                                                                       change in, 2.1.2.2., 2.1.3.1., 2.1.3.5., 2.8.2.1., 2.12.1.2.
                                                                                                                                                                         posting, 2.8.2.14.
                                                                                                       combustible materials, 2.4.1.
                                                                                                                                                                         process plants, 4.9.4.4.
                                                                                                       electrical installations, 2.4.7.
                                                                                                                                                                         radioactive materials, 2.8.2.3., 2.8.2.8.
                                                                                                       open air fires, 2.4.5., 3.3.2.8.
                                                                                                                                                                         refineries, 4.9.4.4.
                                                                                                       open flames, 2.4.3.
                                                                                                                                                                         requirements for, 2.8.1.1.
                                                                                                       smoking, 2.4.2.
                                                                                                                                                                         retention, 2.8.2.12.
                                                                                                       use of dangerous goods, 2.4.4.
                                                                                                                                                                         review, 2.8.2.1.
                                                                                                       vacant buildings, 2.4.6.
                                                                                                                                                                         rooms for storage tanks, 2.8.2.6., 4.3.14.4.
                                                                                                    Fire protection equipment, 6
                                                                                                       emergency power systems, 6.5.


                                                                                                    National Fire Code of Canada 2020                                                                                    Index
                                                                                                    Fire separations, 2.2.                                     assembly occupancies, 4.2.4.
                                                                                                       aerosol storage, 3.2.5.7.                               basement storage, 4.1.5.8., 4.2.5.3., 4.3.13.4., 4.9.3.3.
                                                                                                       ammonium nitrate storage, 3.2.9.2.                      bulk plants, 4.7.
                                                                                                       closures, 2.2.2.                                        business and personal services occupancies, 4.2.6.
                                                                                                       combustible fibre storage, 3.2.6.3.                     care, home-type care, treatment or detention
                                                                                                       compressed gas storage, 3.2.8.2., 3.2.8.3.                 occupancies, 4.2.6.
                                                                                                       damaged, 2.2.1.2., 2.2.2.2.                             classification, 3.1.2.1., 3.2.7.1., 4.1.2., 4.2.2.3.
                                                                                                       dangerous goods storage, 3.2.7.5., 3.2.7.9.             construction and demolition sites, 5.6.1.18.
                                                                                                       definition, 1.4.1.2. [A]                                containers, 4.2., 4.2.3.
                                                                                                       incidental use of flammable and combustible             covered malls, 2.12.1.7.
                                                                                                          liquids, 4.2.8.3.                                    daycare centres, 2.10.3.3.
                                                                                                       inspection and maintenance, 2.2.2.4.                    definition, 1.4.1.2. [A]




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                       laboratories, 5.5.2.2.                                  dipping and coating processes, 5.4.6.
                                                                                                       openings, 2.2.2.1.                                      distilled beverage alcohols, 1.4.1.2. [A], 3.2.1.1.,
                                                                                                       outdoor storage, 3.3.2.14., 3.3.3.2.                       3.2.2.1., 3.2.3.1., 3.2.3.2., 3.2.3.3., 4.10.
                                                                                                       partly occupied buildings, 5.6.1.12.                    distilleries, 4.10.
                                                                                                       processing buildings, 4.9.3.2.                          drainage, 2.13.2.5., 4.1.6., 4.2.8.3., 4.3.7.8., 4.5.6.10.,
                                                                                                       protective guarding devices, 2.2.2.3.                      4.6.3.3.
                                                                                                       storage containers for flammable and combustible        dry cleaning plants, 5.4.2.
                                                                                                          liquids, 4.2.7.3., 4.2.7.5., 4.2.9.1.                dwelling units, 4.1.5.8., 4.2.4.5., 4.2.4.6.
                                                                                                       storage tanks for flammable and combustible             educational facilities, 4.2.6.
                                                                                                          liquids, 4.3.13.4., 4.3.13.7., 4.3.14.1.             electrical installations, 3.1.4., 4.1.4., 5.1.2.
                                                                                                       tire storage, 3.2.4.2.                                  emergency planning, 4.1.5.5.
                                                                                                    Fire stop flaps                                            fire prevention and protection, 4.1.5.
                                                                                                       definition, 1.4.1.2. [A]                                fire protection equipment for special hazards,
                                                                                                       inspection and maintenance, 2.2.2.4.                       4.1.5.1.
                                                                                                    Fire suppression systems (see also Sprinkler systems)      fire safety practices, 2.4.4.1., 2.8.2.7., 4.1.6.1.
                                                                                                       distilleries, 4.10.3.2.                                 flash point, 1.4.1.2. [A], 4.1.3.
                                                                                                       indoor container storage of flammable and               floor finishing, 5.4.4.
                                                                                                          combustible liquids, 4.2.7.6., 4.2.9.1.              fuel-dispensing stations, 4.6.
                                                                                                       indoor storage of dangerous goods, 3.2.7.5., 3.2.7.9.   fuel supply, 4.3.13.2.
                                                                                                       laboratories, 5.5.4.3.                                  fumigation and thermal insecticidal fogging, 5.4.3.
                                                                                                       special, 2.1.3.5., 6.6.                                 handling, 4.1.8.
                                                                                                    Firewalls                                                  hot works, 4.1.5.7., 4.11.2.2., 5.2.3.4.
                                                                                                       container storage of flammable and combustible          identification, 4.2.3.2., 4.3.1.7., 4.3.14.4., 4.6.2.2.,
                                                                                                          liquids, 4.2.7.5.                                       5.5.5.7.
                                                                                                       definition, 1.4.1.2. [A]                                incidental use, 4.2.8.
                                                                                                    Fire watch                                                 industrial occupancies, 4.2.7., 4.2.8., 4.3.13.
                                                                                                       construction sites, 5.6.1.14.                           industrial ovens, 5.4.1.
                                                                                                       demolition sites, 5.6.1.14.                             laboratories, 4.1.1.1., 5.5.5.2.
                                                                                                       helicopter landing areas on roofs, 2.13.2.3.            maximum quantities, 4.2.4.2., 4.2.5.2., 4.2.6.3.,
                                                                                                       hot works, 5.2.3.1., 5.2.3.2., 5.2.3.3.                    4.2.7.5., 4.2.8.2., 4.2.9.1., 4.2.10.2., 4.2.10.3.,
                                                                                                       tents and air-supported structures, 2.9.3.4.               4.2.11.1., 4.2.12.2., 4.3.13.4.
                                                                                                    Fireworks, 5.1.1.3.                                        mercantile occupancies, 4.2.5.
                                                                                                    First storey                                               outdoor container storage, 4.2.11.
                                                                                                       definition, 1.4.1.2. [A]                                piers and wharves, 4.8.
                                                                                                       dispensers at fuel-dispensing stations, 4.6.3.3.        piping and pumping systems, 4.5.
                                                                                                       indoor container storage of flammable and               portable extinguishers, 4.5.10.4., 4.6.9.1., 4.7.5.1.,
                                                                                                          combustible liquids, 4.2.4.3., 4.2.7.5.                 4.8.6.1., 4.10.8.1., 4.11.2.1.
                                                                                                       indoor storage tanks for flammable and                  process plants, 4.1.1.1., 4.9.
                                                                                                          combustible liquids, 4.3.13.4.                       production of ethanol for fuel, 5.4.7.
                                                                                                    Flame resistance, 2.3.2.                                   residential occupancies, 4.2.4.
                                                                                                    Flame-retardant treatments, 2.3.2.2., 2.9.2.1.             special processes involving, 5.4.
                                                                                                    Flame-spread rating, 1.4.1.2. [A], 2.3.1.                  spills and leaks, 2.6.1.8., 3.3.2.13., 4.1.6., 4.2.9.2.,
                                                                                                    Flammable and combustible liquids (see also                   4.2.11.4., 4.3.6.4., 4.3.7.1., 4.3.7.7., 4.3.8.8.,
                                                                                                          Containers for flammable and combustible                4.3.12.3., 4.3.15.1., 4.4., 4.5.6.4., 4.5.10.5., 4.6.7.,
                                                                                                          liquids, Dispensing and transfer of flammable           4.6.8.6., 4.7.2.5., 4.7.6., 4.8.4.8., 4.8.7.2., 4.8.11.1.,
                                                                                                          and combustible liquids, Storage tanks for              4.8.11.4., 4.9.4.1., 4.10.7., 4.11.2.3.
                                                                                                          flammable and combustible liquids), 4                spray coating processes, 5.4.5.
                                                                                                       absorbent materials, 4.2.7.11., 4.6.8.6., 4.6.9.2.,     storage cabinets, 4.2.10.
                                                                                                          5.5.3.3.                                             storage in self-service buildings, 4.2.12.


                                                                                                    Index                                                                                National Fire Code of Canada 2020
                                                                                                       tank vehicles, 4.11.                                     remote pumping systems, 4.6.6.
                                                                                                       ventilation, 4.1.7.                                      self-service outlets, 4.6.4.2., 4.6.5.1., 4.6.5.2., 4.6.8.2.,
                                                                                                       water-miscible liquid mixtures, 4.1.2.2.                     4.6.8.4.
                                                                                                    Flammable gases                                             shut-off devices, 4.6.4.
                                                                                                       covered malls, 2.12.1.7., 2.12.1.9.                      signs, 4.6.8.8.
                                                                                                       in drying ovens, 5.4.1.1.                                smoking, 4.6.8.7., 4.6.8.8.
                                                                                                       fuel-dispensing stations, 3.1.1.4., 4.6.1.1.             spill control, 4.6.3.3., 4.6.7.
                                                                                                       hot works, 5.2.3.2., 5.2.3.4., 5.2.3.5.                  storage of compressed gases, 3.1.1.4.
                                                                                                       indoor storage, 3.2.8.2.                                 storage and handling of flammable and
                                                                                                       near storage tanks for flammable and combustible             combustible liquids, 4.1.1.1., 4.6.2.
                                                                                                          liquids, 4.3.2.3.                                     supervision and dispensing procedures, 4.6.8.
                                                                                                       outdoor storage, 3.3.5.3.                                tank vehicles, 4.11.3.7.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                       prohibited in balloons, 2.4.4.2.                         training, 4.6.8.9.
                                                                                                    Flammable solids (see Dangerous goods)                    Fuelled equipment, covered malls, 2.12.1.8.
                                                                                                    Flash point                                               Fuelling of helicopters on roofs, 2.13.2.4.
                                                                                                       container storage of flammable and combustible         Fuel supply, construction and demolition sites,
                                                                                                          liquids, 4.2.7.5., 4.2.11.2.                              5.6.1.10.
                                                                                                       definition, 1.4.1.2. [A]                               Fumigation, 5.4.3.
                                                                                                       determination of, 4.1.3.1.                             Functional statements
                                                                                                    Floating roofs, storage tanks, 4.3.1.6.                     application, 3.1.1.2. [A]
                                                                                                    Flood protection                                            list of, 3.2.1.1. [A]
                                                                                                       aboveground storage tanks, 4.3.3.3.
                                                                                                       inside storage tanks, 4.3.13.11.
                                                                                                       underground storage tanks, 4.3.8.9.
                                                                                                    Floor area
                                                                                                                                                                                           G
                                                                                                       definition, 1.4.1.2. [A]
                                                                                                       drapes, curtains and decorative materials, 2.3.2.1.    Garages, storage of flammable and combustible
                                                                                                       indoor storage of tires, 3.2.4.4.                           liquids, 4.2.4.6.
                                                                                                       mercantile occupancies, storage of flammable and       Gaskets, flanged connections, 4.5.5.5., 4.8.11.3.
                                                                                                          combustible liquids, 4.2.5.2.                       Grade, 1.4.1.2. [A]
                                                                                                       occupant load signs, 2.7.1.4.                          Grain handling and storage, 5.3.3.
                                                                                                       open, means of egress, 2.7.1.2.                        Greenhouse agricultural occupancies (Group G,
                                                                                                       posting of fire emergency procedures, 2.8.2.14.             Division 3), 1.4.1.2. [A]
                                                                                                       smoke control in high buildings, 7.2.3.3., 7.3.10.1.   Grounding and bonding
                                                                                                       voice communication systems, 6.3.1.4.                    bulk plants, 4.7.4.5.
                                                                                                    Floor finishing, 5.4.4.                                     dispensing and transfer of flammable and
                                                                                                    Flooring materials                                             combustible liquids, 4.1.8.2., 4.7.4.5., 4.8.11.2.,
                                                                                                       ammonium nitrate storage, 3.2.9.2.                          4.11.3.3.
                                                                                                       dangerous goods storage, 3.2.7.8.                        dust-producing processes, 5.3.1.2., 5.3.1.5., 5.3.3.2.
                                                                                                    Flow coating operations, 5.4.6.                             indoor storage tanks for flammable and
                                                                                                    Flue collars, 1.4.1.2. [A]                                     combustible liquids, 4.3.13.12.
                                                                                                    Flue pipes, 1.4.1.2. [A], 2.6.1.4., 2.6.1.5.                piers and wharves, 4.8.5., 4.8.11.2.
                                                                                                    Flues, 1.4.1.2. [A], 2.6.1.4.                               piping for flammable and combustible liquids,
                                                                                                    Foundations and supports                                       4.5.8.4.
                                                                                                       aboveground piping, 4.5.6.3., 4.6.2.5.                   railway tracks, 4.7.4.5., 4.8.5.1.
                                                                                                       aboveground storage tanks, 4.3.3.1.                      tank vehicles, 4.7.4.5., 4.11.3.3.
                                                                                                       overhead piping, 4.5.6.12.                               tank vessels, 4.8.11.2.
                                                                                                       underground storage tanks, 4.3.8.6.                    Ground surface
                                                                                                    Fuel-dispensing stations, 4.6.                              clearance above, 4.3.5.2., 4.3.7.5., 4.3.11.3.
                                                                                                       application of Code, 4.6.1.1.                            ground cover for underground storage tanks,
                                                                                                       attendants, 4.6.8.1., 4.6.8.2., 4.6.8.5.                    4.3.8.3.
                                                                                                       definition, 1.4.1.2. [A]                                 outdoor storage, 3.3.2.3., 3.3.2.11.
                                                                                                       delivery hose and nozzles, 4.6.5.                        removal of combustibles, 4.1.5.4.
                                                                                                       dispensing systems, 4.6.3., 4.6.8.3., 4.6.8.4.           supports and foundations, 4.3.13.11., 4.8.3.1.,
                                                                                                       fire prevention and protection, 4.6.9.                      4.10.3.2.
                                                                                                       ignition sources, 4.6.8.7., 4.6.8.8.                   Group A occupancies (see Assembly occupancies)
                                                                                                       inside buildings, 4.1.8.4.                             Group B occupancies (see Care, home-type care,
                                                                                                       leakage detection, 4.4.                                     treatment or detention occupancies)
                                                                                                       marine fuel-dispensing stations, 4.6.3.5., 4.6.4.3.,   Group C occupancies (see Residential occupancies)
                                                                                                          4.6.5.1., 4.6.5.2., 4.6.6.5., 4.6.8.5.              Group D occupancies (see Business and personal
                                                                                                       portable extinguishers, 4.6.9.1.                            services occupancies)


                                                                                                    National Fire Code of Canada 2020                                                                                   Index
                                                                                                    Group E occupancies (see Mercantile occupancies)            piping for flammable and combustible liquids,
                                                                                                    Group F, Division 1 occupancies (see High-hazard               4.5.6.10., 4.5.8.
                                                                                                         industrial occupancies)                                processing buildings, 4.9.3.4.
                                                                                                    Group F, Division 2 occupancies (see Medium-hazard        Helicopter landing areas on roofs, 2.13.
                                                                                                         industrial occupancies)                              High buildings
                                                                                                    Group F, Division 3 occupancies (see Low-hazard             central alarm and control facility, 7.2.4.
                                                                                                         industrial occupancies)                                elevators, 7.2.2.1.
                                                                                                    Group F occupancies (see Industrial occupancies)            emergency power systems, 7.2.2.1.
                                                                                                    Group G, Division 1 occupancies (see High-hazard            fire drills, 2.8.3.2.
                                                                                                         agricultural occupancies)                              fire emergency systems, 2.1.3.1.
                                                                                                    Group G, Division 3 occupancies (see Greenhouse             fire safety plan, 2.8.2.2.
                                                                                                         agricultural occupancies)                              smoke control measures, 7.3.




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                                                                                                    Group G, Division 4 occupancies (see Agricultural           testing of fire emergency systems, 7.1.1.2., 7.2.1.1.
                                                                                                         occupancies with no human occupants)                   venting to aid firefighting, 7.2.3.
                                                                                                    Group G occupancies (see Agricultural occupancies)        High-hazard agricultural occupancies (Group G,
                                                                                                    Guards                                                         Division 1), 1.4.1.2. [A]
                                                                                                      aboveground piping, 4.5.6.3., 4.6.2.5.                  High-hazard industrial occupancies (Group F,
                                                                                                      aboveground storage tanks, 4.3.7.4.                          Division 1) (see also Industrial occupancies)
                                                                                                      construction access, 5.6.3.7.                             aisles in open floor areas, 2.7.1.2.
                                                                                                      dispensers at fuel-dispensing stations, 4.6.3.4.          definition, 1.4.1.2. [A]
                                                                                                      piping on piers and wharves, 4.8.4.3.                     distilleries, 4.10.2.1.
                                                                                                                                                                fire separations, 2.2.1.1.
                                                                                                                                                              Home-type care occupancies (Group B, Division 4)
                                                                                                                             H                                     (see Care, home-type care, treatment or
                                                                                                                                                                   detention occupancies)
                                                                                                    Hazardous activities (see Hazardous processes and         Hoods, ducts and filters
                                                                                                                                                                hot works, 2.6.1.8.
                                                                                                         operations)
                                                                                                                                                                inspection and cleaning, 2.6.1.3., 2.6.1.9., 5.5.3.6.
                                                                                                    Hazardous materials (see Dangerous goods,
                                                                                                         Flammable and combustible liquids)                   Hose for flammable and combustible liquids
                                                                                                                                                                cargo, 4.8.7.2., 4.8.7.3., 4.8.8., 4.8.11.3.
                                                                                                    Hazardous processes and operations
                                                                                                                                                                dispensing, 4.6.5.1.
                                                                                                      change in fire hazard, 2.1.2.2.
                                                                                                      construction and demolition sites, 5.6.                 Hose stations (see also Standpipe and hose systems)
                                                                                                                                                                distilleries, 4.10.8.1., 4.10.8.2.
                                                                                                      dust-producing processes, 5.3.
                                                                                                                                                                process plants, 4.9.4.3.
                                                                                                      electrical installations, 5.1.2.
                                                                                                      fire safety plan, 2.8.2.8., 5.1.5.                        standpipe and hose systems, 6.4.1.
                                                                                                                                                              Hospital textiles, 2.3.2.3.
                                                                                                      flammable and combustible liquids and materials,
                                                                                                                                                              Hot works
                                                                                                         5.4.
                                                                                                      flash point, 5.1.4.                                       construction sites, 5.6.1.7.
                                                                                                                                                                demolition sites, 5.6.1.7.
                                                                                                      hot works, 5.2.
                                                                                                                                                                ducts, 2.6.1.8.
                                                                                                      laboratories, 5.5.
                                                                                                      prohibitions, 2.1.2.2.                                    equipment, 5.2.2.2.
                                                                                                                                                                fire prevention, 5.2.3.
                                                                                                      scope of Code, 5.1.1.
                                                                                                                                                                flammable and combustible liquids, 4.1.5.7.
                                                                                                      ventilation, 5.1.3.
                                                                                                    Heated liquids, 4.1.2.3.                                    hazardous processes and operations, 5.2.
                                                                                                                                                                piping for flammable and combustible liquids,
                                                                                                    Heating cables, for piping systems, 4.5.8.3.
                                                                                                                                                                   4.5.5.2., 4.5.10.7., 5.2.3.4.
                                                                                                    Heating, ventilating and air-conditioning (HVAC)
                                                                                                         systems                                                piping for flammable gases, 5.2.3.4., 5.2.3.5.
                                                                                                                                                                tank vehicles, 4.11.2.2.
                                                                                                      distilleries, 4.10.6.
                                                                                                                                                                training, 5.2.1.2., 5.2.3.3.
                                                                                                      fire safety practices, 2.6.1.6.
                                                                                                      flammable and combustible liquids, 4.1.5.2., 4.1.7.,    Hydrant access, construction and demolition sites,
                                                                                                                                                                   5.6.3.6.
                                                                                                         4.2.10.6., 4.3.13.9., 4.6.3.3.
                                                                                                                                                              Hydrant systems (see also Water supplies)
                                                                                                      floor finishing, 5.4.4.3.
                                                                                                      hazardous processes and operations, 5.1.3.1.              maintenance and inspection, 6.4.1.1.
                                                                                                                                                                outdoor storage, general, 3.3.2.7.
                                                                                                      hot works, 2.6.1.8.
                                                                                                                                                                process plants, 4.9.4.3.
                                                                                                      indoor storage of combustible fibres, 3.2.6.5.
                                                                                                      indoor storage of compressed gases, 3.2.8.2.            Hydraulic pressure shock, bulk plants, 4.7.2.3.
                                                                                                                                                              Hydraulic transfer systems, 4.5.9.5.
                                                                                                      indoor storage of dangerous goods, 3.2.7.2., 3.2.7.3.
                                                                                                      indoor storage, general, 3.2.2.3.
                                                                                                      installation, 2.6.1.1.
                                                                                                      laboratories, 5.5.4., 5.5.5.5., 5.5.5.6.
                                                                                                      leakage prevention, 2.6.1.8.


                                                                                                    Index                                                                              National Fire Code of Canada 2020
                                                                                                                                  I                                      indoor container storage of flammable and
                                                                                                                                                                            combustible liquids, 4.2.7.5., 4.2.7.10., 4.2.8.4.
                                                                                                                                                                         indoor storage of combustible fibres, 3.2.6.4.
                                                                                                    Ice and snow clearing, 2.7.1.7., 3.3.2.7.
                                                                                                                                                                         indoor storage of dangerous goods, 3.2.7.9.,
                                                                                                    Identification
                                                                                                                                                                            3.2.7.10., 3.2.7.12., 3.2.7.14., 3.2.7.17.
                                                                                                       construction and demolition sites, 5.6.3.3.
                                                                                                                                                                         indoor storage of tires, 3.2.4.3.
                                                                                                       containers for flammable and combustible liquids,
                                                                                                                                                                         outdoor container storage of flammable and
                                                                                                          4.2.3.2., 4.6.2.2.
                                                                                                                                                                            combustible liquids, 4.2.11.1.
                                                                                                       dangerous goods, 2.8.2.4., 2.8.2.5., 2.8.2.8., 3.2.7.13.,
                                                                                                                                                                         outdoor storage of dangerous goods, 3.3.4.2.,
                                                                                                          3.2.7.14., 3.3.4.5., 5.5.3.1., 5.5.5.7.
                                                                                                                                                                            3.3.4.4.
                                                                                                       emergency telephones at fuel-dispensing stations,
                                                                                                                                                                         outdoor storage, general, 3.3.2.2., 3.3.2.3., 3.3.2.14.,
                                                                                                          4.6.8.4.
                                                                                                                                                                            3.3.2.15., 3.3.3.2.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                       fire suppression system controls, 2.1.3.5.
                                                                                                                                                                         pallets, 3.2.2.4.
                                                                                                       piping for compressed gases in laboratories,
                                                                                                                                                                         sprinkler systems, 3.2.3.3.
                                                                                                          5.5.5.3.
                                                                                                                                                                      Indoor storage, 3.2.
                                                                                                       piping for flammable and combustible liquids,
                                                                                                                                                                         aerosols, 3.2.2.1., 3.2.5.
                                                                                                          4.5.4.
                                                                                                                                                                         ammonium nitrate, 3.2.9.
                                                                                                       shut-off devices for dispensers at fuel-dispensing
                                                                                                                                                                         clearances, 3.2.2.3.
                                                                                                          stations, 4.6.4.1.
                                                                                                                                                                         combustible fibres, 3.2.2.1., 3.2.6.
                                                                                                       storage cabinets for flammable and combustible
                                                                                                                                                                         compressed gases, 3.1.1.4., 3.1.2.5., 3.2.8., 5.5.5.3.
                                                                                                          liquids, 4.2.10.4.
                                                                                                                                                                         containers for flammable and combustible liquids,
                                                                                                       storage tanks for flammable and combustible
                                                                                                                                                                            3.2.3.1., 4.2., 4.7.2.4., 5.5.5.2.
                                                                                                          liquids, 4.3.1.7., 4.3.14.4.
                                                                                                                                                                         dangerous goods, 3.1.2., 3.2.2.1., 3.2.7., 5.5.5.1.
                                                                                                       stored commodities, 2.8.2.4., 2.8.2.5., 2.8.2.8.
                                                                                                                                                                         distilled beverage alcohols, 3.2.2.1., 3.2.3.1., 3.2.3.2.,
                                                                                                       valves controlling flammable and combustible
                                                                                                                                                                            3.2.3.3., 4.10.4.
                                                                                                          liquids, 4.5.7.6., 4.5.10.3., 4.5.10.7., 4.8.4.6.,
                                                                                                                                                                         fire safety plan, 2.8.2.4.
                                                                                                          4.8.4.7.
                                                                                                                                                                         general commodities, 3.2.2.1., 3.2.3.1.
                                                                                                    Ignition sources (see also Hot works, Open flames,
                                                                                                                                                                         maximum height, 3.2.2.7.
                                                                                                          Smoking)
                                                                                                                                                                         pallets, 3.2.2.4.
                                                                                                       construction sites, 5.6.1.8.
                                                                                                                                                                         reactive substances, 3.1.2.6.
                                                                                                       demolition sites, 5.6.1.8.
                                                                                                                                                                         scope of Code, 3.2.1.
                                                                                                       dust-producing processes, 5.3.1.5., 5.3.1.9.,
                                                                                                                                                                         smoking prohibition, 3.2.2.6.
                                                                                                          5.3.1.10., 5.3.3.2.
                                                                                                                                                                         storage tanks for flammable and combustible
                                                                                                       flammable and combustible liquids, 4.1.5.2.,
                                                                                                                                                                            liquids, 4.3.13., 4.8.3., 4.10.3., 4.10.4.
                                                                                                          4.2.8.3., 4.2.10.4., 4.3.6.4., 4.3.12.3., 4.6.3.3.,
                                                                                                                                                                         tires, 3.2.1.1., 3.2.2.1., 3.2.4.
                                                                                                          4.11.3.2.
                                                                                                                                                                      Industrial occupancies (Group F)
                                                                                                       floor finishing, 5.4.4.4.
                                                                                                                                                                         access for firefighting in storage areas, 3.2.2.2.
                                                                                                       fuel-dispensing stations, 4.6.8.7.
                                                                                                                                                                         aisles in open floor areas, 2.7.1.2.
                                                                                                       fumigation and thermal insecticidal fogging,
                                                                                                                                                                         definition, 1.4.1.2. [A]
                                                                                                          5.4.3.3.
                                                                                                                                                                         distilleries, 4.10.2.1.
                                                                                                       hot works, 5.2.
                                                                                                                                                                         drapes, curtains and decorative materials, 2.3.2.1.
                                                                                                       indoor storage of combustible fibres, 3.2.6.5.
                                                                                                                                                                         process plants, 4.9.
                                                                                                       indoor storage of dangerous goods, 3.2.7.2.
                                                                                                                                                                         separation from other occupancies, 2.1.2.2., 2.2.1.1.
                                                                                                       laboratories, 5.5.3.5., 5.5.5.5., 5.5.5.6.
                                                                                                                                                                         storage of combustible fibres, 3.2.6.2.
                                                                                                       outdoor storage, 3.3.2.8.
                                                                                                                                                                         storage of flammable and combustible liquids,
                                                                                                       piping for flammable and combustible liquids,
                                                                                                                                                                            4.2.7., 4.2.8., 4.2.9., 4.2.10.3., 4.3.13.1., 4.7.2.4.
                                                                                                          4.5.8.5., 4.5.10.5.
                                                                                                                                                                      Industrial ovens, 5.4.1.
                                                                                                       static electricity, 4.1.8.2., 4.7.4.5., 4.11.3.3., 5.3.1.5.,
                                                                                                                                                                      Industrial trucks
                                                                                                          5.3.1.10., 5.3.3.2.
                                                                                                                                                                         battery-powered, 3.1.3.3.
                                                                                                       temporary enclosures, 5.6.1.19.
                                                                                                                                                                         fuel-fired, 3.1.3.2.
                                                                                                    Incidental use of flammable and combustible liquids,
                                                                                                                                                                         maintenance and operation, 3.1.3.1.
                                                                                                          3.2.3.1., 4.2.8.
                                                                                                                                                                         near ammonium nitrate storage, 3.2.9.3.
                                                                                                    Incinerators
                                                                                                                                                                         portable extinguishers, 3.2.9.4., 3.3.2.10., 4.10.8.1.
                                                                                                       indoor, 2.6.2.1.
                                                                                                                                                                         training, 3.1.3.4.
                                                                                                       outdoor, 2.6.2.2., 3.3.2.8.
                                                                                                                                                                      Inert gas transfer systems, 4.5.9.6.
                                                                                                       spark arresters, 2.6.2.3.
                                                                                                                                                                      Information, posted (see also Identification, Labels,
                                                                                                    Individual storage areas
                                                                                                                                                                            Placards, Signs)
                                                                                                       area and height limits, 3.2.2.7., 3.2.3.2., 3.3.2.2.
                                                                                                                                                                         maintenance, 2.1.4.2.
                                                                                                       combustible products in, 3.2.7.17., 3.3.4.4., 4.2.7.10.
                                                                                                                                                                         posting, 2.1.4.1.
                                                                                                       definition, 1.4.1.2. [A]
                                                                                                                                                                      Insecticidal fogging, 5.4.3.3.
                                                                                                       fire safety plan, 2.8.2.4., 2.8.2.5.



                                                                                                    National Fire Code of Canada 2020                                                                                         Index
                                                                                                    Inspection                                                                                J
                                                                                                       aviation fuel and oil separators, 2.13.2.5.
                                                                                                       cargo hose for flammable and combustible liquids,
                                                                                                                                                                Joints in piping systems
                                                                                                          4.8.11.1.
                                                                                                                                                                   flanged, 4.5.5.3., 4.5.5.4., 4.5.5.5., 4.8.11.3.
                                                                                                       chimneys, flues and flue pipes, 2.6.1.4.
                                                                                                                                                                   fuel-dispensing stations, 4.6.2.3.
                                                                                                       closures, 2.2.2.4.
                                                                                                                                                                   mechanical connections, 4.5.5.6.
                                                                                                       conveying equipment, 5.3.3.2.
                                                                                                                                                                   threaded, 4.5.5.1.
                                                                                                       elevators, 7.2.2.
                                                                                                                                                                   welded piping, 4.5.5.2.
                                                                                                       emergency lighting equipment, 6.5.1.6., 6.5.1.7.
                                                                                                       emergency power systems, 6.5.1.
                                                                                                       fire alarm systems, 6.3.1.2.
                                                                                                       fire pumps, 6.4.1.1.
                                                                                                                                                                                             K




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                       fire safety devices, 2.1.3.6.
                                                                                                       hoods, ducts and filters, 2.6.1.3., 2.6.1.9., 5.5.3.6.   Keys
                                                                                                       hot work equipment, 5.2.2.2.                               access to fire protection equipment, 2.8.1.3.
                                                                                                       hot works, 5.2.3.1., 5.2.3.3.                              access to roofs for firefighting, 2.5.1.3.
                                                                                                       hydrants, 6.4.1.1.                                         elevators, 7.1.1.4., 7.2.2.
                                                                                                       industrial ovens, 5.4.1.2.
                                                                                                       laboratories, 5.5.3.6., 5.5.4.4.
                                                                                                       piping for flammable and combustible liquids,                                          L
                                                                                                          4.4., 4.5.10.5., 4.10.5.1.
                                                                                                       piping and valves, installations on piers and            Labels (see also Information, posted)
                                                                                                          wharves, 4.8.4.6.                                       containers for dangerous goods, 3.2.7.13., 3.3.4.5.,
                                                                                                       portable extinguishers, 6.2.1.1.                              5.5.3.1., 5.5.5.7.
                                                                                                       reservoirs, 6.4.1.1.                                       containers for flammable and combustible liquids,
                                                                                                       smoke control measures in high buildings, 7.3.                4.2.3.2., 4.6.2.2.
                                                                                                       special fire suppression systems, 6.6.1.1.                 piping for compressed gases in laboratories,
                                                                                                       sprinkler heads, 6.4.1.1.                                     5.5.5.3.
                                                                                                       sprinkler valves, 6.4.1.1.                                 piping for flammable and combustible liquids,
                                                                                                       standpipe and hose systems, 6.4.1.1.                          4.5.4.1., 4.8.4.7.
                                                                                                       storage tanks for flammable and combustible                storage cabinets for flammable and combustible
                                                                                                          liquids, 4.3.7.7., 4.3.8.4., 4.4.                          liquids, 4.2.10.4.
                                                                                                       valves for flammable and combustible liquids,              storage tanks for flammable and combustible
                                                                                                          4.5.10.5., 4.5.10.6.                                       liquids, 4.3.1.7.
                                                                                                       voice communication systems, 6.3.1.4.                      valves controlling flammable and combustible
                                                                                                    Institutional occupancies (see Care, home-type care,             liquids, 4.5.7.6., 4.5.10.7., 4.8.4.7.
                                                                                                          treatment or detention occupancies)                   Laboratories
                                                                                                    Integrated fire protection and life safety systems, 6.8.      application of Code, 5.5.1.1.
                                                                                                    Interconnected floor spaces, 1.4.1.2. [A], 2.3.1.4.           chemical wastes, 5.5.5.7.
                                                                                                    Interior finish materials                                     compressed gases, 5.5.5.3.
                                                                                                       ammonium nitrate storage buildings, 3.2.9.2.               construction, 5.5.2.
                                                                                                       conformance, 2.3.1.1.                                      dangerous goods, 5.5.5.
                                                                                                       dangerous goods storage, 3.2.7.8., 5.5.2.1.                fire drill frequency, 2.8.3.2.
                                                                                                       hot works, 5.2.3.1., 5.2.3.2.                              fire prevention and protection, 5.5.3.
                                                                                                       laboratories, 5.5.2.1.                                     flammable and combustible liquids, 4.1.1.1., 5.5.5.2.
                                                                                                    Interlocks                                                    perchloric acid, 5.5.5.6.
                                                                                                       conveying equipment, 5.3.3.2.                              reactive materials, 5.5.5.5.
                                                                                                       dispensing of flammable and combustible liquids,           refrigerated storage, 5.5.5.4.
                                                                                                          4.6.5.2., 4.6.6.5., 4.7.3.2., 4.7.4.4.                  ventilation, 5.5.4.
                                                                                                       dust-collecting systems, 5.3.1.8.                        Laundry equipment, lint traps, 2.4.1.4.
                                                                                                       dust-producing processes, 5.3.1.8., 5.3.3.2.             Leakage (see also Spill control)
                                                                                                       ventilation for flammable vapours, 4.1.7.2., 4.1.7.6.,     dangerous goods, 3.2.7.4., 3.2.7.11., 3.3.4.7.
                                                                                                          5.5.4.3.                                                flammable and combustible liquids, 4.1.6.1.,
                                                                                                    Intermodal shipping containers, 3.3.1.1., 3.3.4.8.               4.1.6.3., 4.3.6.4., 4.3.12.3., 4.3.15.1., 4.7.4.3.,
                                                                                                    Internal combustion engines                                      4.8.7.2., 4.8.11.1., 4.10.7.1., 4.11.2.3.
                                                                                                       blowers in air-supported structures, 2.9.3.6.              fuel supply piping and equipment, 2.6.1.8.
                                                                                                       construction and demolition sites, 5.6.1.10.             Leak detection, 4.4.
                                                                                                       fuel dispensing, 4.6.8.6., 4.6.8.8.                        cargo hose for flammable and combustible liquids,
                                                                                                       fuel supplies, 4.3.13.2.                                      4.8.8.2., 4.8.11.1.
                                                                                                       tank vehicles, 4.11.3.6.                                   continuous, 4.4.1.2., 4.4.2.1., 4.4.4.2.



                                                                                                    Index                                                                                   National Fire Code of Canada 2020
                                                                                                       frequency of testing and monitoring, 4.4.1.2.                                        M
                                                                                                       hot work equipment, 5.2.2.2.
                                                                                                       inventory reconciliation, 4.4.1.2., 4.4.2.1., 4.4.4.1.
                                                                                                       liquid media leakage tests, 4.4.1.2., 4.4.2.1., 4.4.3.4.   Machinery reservoirs, demolition sites, 5.6.1.11.
                                                                                                       piping for flammable and combustible liquids,              Maintenance
                                                                                                           4.4., 4.5.10.5., 4.8.4.8.                                access for firefighting, 2.5.1.5., 3.2.2.2., 3.3.2.7.,
                                                                                                       pneumatic leakage tests, 4.4.1.2., 4.4.2.1., 4.4.3.2.,          4.1.5.6.
                                                                                                           4.4.3.3.                                                 cargo hose for flammable and combustible liquids,
                                                                                                       precision leak detection, 4.4.1.2., 4.4.2.1., 4.4.3.1.          4.8.8.2.
                                                                                                       protocols, 4.4.3.2., 4.4.3.3., 4.4.3.4., 4.4.3.5.            closures, 2.2.2.4.
                                                                                                       remedial action, 4.4.1.3.                                    combustible deposits and residue, 5.5.5.6.
                                                                                                       storage tanks for flammable and combustible                  combustible material accumulation, 3.2.7.4.,




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                           liquids, 4.3.7.7., 4.4.                                     4.1.5.4., 4.3.7.8., 5.2.3.2., 5.5.3.2.
                                                                                                       sumps, 4.3.9.3.                                              commercial cooking equipment, 2.6.1.9.
                                                                                                       test methods, 4.4.2.1.                                       conveying equipment, 5.3.3.2.
                                                                                                       training, 4.4.2.1., 4.4.3.4.                                 ducts and fuel supply piping, 2.6.1.8.
                                                                                                    Licensed beverage establishments and licensed                   dust removal, 5.3.1.2., 5.3.3.2.
                                                                                                           restaurants, fire emergency procedures, 2.8.1.1.         electrical installations, 2.4.7., 5.5.3.6.
                                                                                                    Life safety                                                     emergency lighting, 2.7.3., 6.5.
                                                                                                       doors and means of egress, 2.7.2.                            fire alarm systems, 6.3.1.1.
                                                                                                       emergency lighting, 2.7.3.                                   fire emergency systems, 6.5., 7.1.1.4.
                                                                                                       exit lighting and signs, 2.7.3.                              fire protection equipment and installations,
                                                                                                       fire warning at construction and demolition sites,              2.1.3.6., 6.1.1.2.
                                                                                                           5.6.1.17.                                                fire safety devices, 2.1.3.6.
                                                                                                       hazardous processes and operations, 5.1.1.1.                 ground vegetation, 3.3.2.3., 4.1.5.4.
                                                                                                       means of egress, 2.7.1.                                      helicopters on roofs, 2.13.2.4.
                                                                                                       systems integrated with fire protection, 2.1.3.7., 6.8.      hot work equipment, 5.2.2.1.
                                                                                                    Lift trucks (see Industrial trucks)                             HVAC appliances and equipment, 2.6.1.
                                                                                                    Lint traps, 2.4.1.4.                                            hydrants, 3.3.2.7., 6.4.1.1.
                                                                                                    Liquefied petroleum gas, 3.1.1.4., 4.3.2.3., 4.6.1.1.,          industrial ovens, 5.4.1.2.
                                                                                                           4.6.3.3.                                                 industrial trucks, 3.1.3., 3.2.9.3.
                                                                                                    Liquid level measurements                                       laboratories, 5.5.3.4., 5.5.3.6., 5.5.4.1., 5.5.5.5.,
                                                                                                       openings in storage tanks, 4.3.6.3., 4.3.12.2.,                 5.5.5.6.
                                                                                                           4.3.15.2.                                                means of egress, 2.7.1.6.
                                                                                                       storage tanks for flammable and combustible                  outdoor incinerators, 2.6.2.2.
                                                                                                           liquids, 4.3.16.2., 4.4.1.2., 4.4.2.1., 4.4.4.1.         outdoor storage areas, 3.3.2.3.
                                                                                                       tank vehicles, 4.11.3.7.                                     piping for flammable and combustible liquids,
                                                                                                    Liquids, heated, 4.1.2.3.                                          4.5.10.7., 4.7.2.3., 4.7.4.3., 5.5.3.6.
                                                                                                    Loading and unloading facilities                                portable extinguishers, 6.2.1.1.
                                                                                                       check valves, 4.7.4.3.                                       posted information, 2.1.4.2.
                                                                                                       clearances, 4.7.4.1.                                         secondary containment for aboveground storage
                                                                                                       control valves, 4.7.4.4.                                        tanks, 4.3.7.8.
                                                                                                       downspouts, 4.7.4.6.                                         spark arresters, 2.6.2.3.
                                                                                                       grounding and bonding, 4.7.4.5.                              special fire suppression systems, 6.6.
                                                                                                       multi-purpose, 4.7.4.2.                                      sprinkler systems, 6.4.1.1.
                                                                                                    Lodging houses, 2.11.                                           standpipe and hose systems, 6.4.1.1.
                                                                                                    Lower explosive limit                                           valves for flammable and combustible liquids,
                                                                                                       definition, 1.4.1.2. [A]                                        4.7.2.3., 5.5.3.6.
                                                                                                       distilleries, 4.10.6.1.                                      ventilation systems for flammable vapours, 4.1.7.8.,
                                                                                                       flammable and combustible liquids, 4.1.7.2.,                    5.5.3.4., 5.5.3.6., 5.5.4.1., 5.5.5.5., 5.5.5.6.
                                                                                                           4.1.7.6., 4.1.8.2.                                       water supplies, 3.3.2.7., 6.4.1.1.
                                                                                                    Low-hazard industrial occupancies (Group F,                   Major occupancies
                                                                                                           Division 3) (see also Industrial occupancies)            ammonium nitrate storage, 3.2.9.2.
                                                                                                       aisles in open floor areas, 2.7.1.2.                         classification, 2.1.2.1.
                                                                                                       definition, 1.4.1.2. [A]                                     dangerous goods maximums, 5.5.5.1.
                                                                                                    Low pressure storage tanks, 1.4.1.2. [A], 4.3.1.3.,             definition, 1.4.1.2. [A]
                                                                                                           4.3.4.1.                                                 fire separations, 2.2.1.1.
                                                                                                    Lubricating oil, used, 4.1.2.4.                                 hazardous activities, 2.1.2.2.
                                                                                                    Lumber and forest products                                    Make-up air, ventilation for flammable vapours,
                                                                                                       indoor storage, 3.2.2.1., 3.2.3.1.                              4.1.7.5.
                                                                                                       outdoor storage, 3.3.2.1., 3.3.3.2.                        Manufactured buildings, outdoor storage, 3.3.3.2.


                                                                                                    National Fire Code of Canada 2020                                                                                Index
                                                                                                    Marine fuel-dispensing stations (see also                Non-inert gas transfer systems, 4.5.9.7.
                                                                                                         Fuel-dispensing stations)
                                                                                                      access to, 4.6.3.5.
                                                                                                      definition, 1.4.1.2. [A]                                                           O
                                                                                                      dispensing hose, 4.6.5.1.
                                                                                                      dispensing nozzles, 4.6.5.2.
                                                                                                                                                             Objectives
                                                                                                      duties of attendants, 4.6.8.5.
                                                                                                                                                               application, 2.1.1.2. [A]
                                                                                                      shut-off valves, 4.6.4.3.
                                                                                                                                                               list of, 2.2.1.1. [A]
                                                                                                      storage tanks for flammable and combustible
                                                                                                                                                             Obstructions
                                                                                                         liquids, 4.6.6.5.
                                                                                                                                                               to access for firefighting, 2.5.1.2., 2.5.1.4., 2.5.1.5.,
                                                                                                    Matches (see Dangerous goods)
                                                                                                                                                                   3.3.2.6., 4.1.5.6., 4.1.6.2.
                                                                                                    Mattresses, 2.3.2.3.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                                                               to exits and access to exits, 3.1.2.5., 4.2.2.1.
                                                                                                    Maximum static head, indoor storage tank, 4.3.13.3.
                                                                                                                                                               to means of egress, 2.4.1.1., 2.7.1.6., 2.7.1.7., 2.7.1.8.,
                                                                                                    Means of egress
                                                                                                                                                                   2.9.3.4.
                                                                                                      business and personal services occupancies, 2.7.1.2.
                                                                                                                                                             Occupancies, 1.4.1.2. [A]
                                                                                                      combustible materials in, 2.4.1.1.
                                                                                                                                                             Occupant load
                                                                                                      construction and demolition sites, 5.6.1.16.
                                                                                                                                                               definition, 1.4.1.2. [A]
                                                                                                      covered malls, 2.12.1.4.
                                                                                                                                                               maximum, 2.7.1.3.
                                                                                                      definition, 1.4.1.2. [A]
                                                                                                                                                               signs, 2.7.1.4.
                                                                                                      industrial occupancies, 2.7.1.2.
                                                                                                                                                             Oil field production liquids, storage, 4.3.1.2.
                                                                                                      maintenance, 2.7.1.6., 2.7.1.7.
                                                                                                                                                             Open air fires, 2.4.5., 3.3.2.8.
                                                                                                      mercantile occupancies, 2.7.1.2., 2.12.1.4.
                                                                                                                                                             Open flames (see also Hot works, Ignition sources)
                                                                                                      nonfixed seating, 2.7.1.5.
                                                                                                                                                               dust-producing processes, 5.3.1.10.
                                                                                                      obstructions, 2.4.1.1., 2.7.1.6., 2.7.1.7., 2.7.1.8.
                                                                                                                                                               flaming meals and drinks, 2.4.3.2.
                                                                                                      open floor areas, 2.7.1.2.
                                                                                                                                                               flammable and combustible liquids, 4.1.5.2.,
                                                                                                      requirement for, 2.7.1.1.
                                                                                                                                                                   4.2.10.4.
                                                                                                      signage, 2.8.2.14.
                                                                                                                                                               floor finishing, 5.4.4.4.
                                                                                                      smoke control doors in high buildings, 7.3.1.2.
                                                                                                                                                               fumigation and thermal insecticidal fogging,
                                                                                                      storage of compressed gases, 3.1.2.5.
                                                                                                                                                                   5.4.3.3.
                                                                                                      storage of flammable and combustible liquids,
                                                                                                                                                               indoor storage, 3.2.7.2.
                                                                                                         4.2.2.1.
                                                                                                                                                               laboratories, 5.5.5.6.
                                                                                                      tents and air-supported structures, 2.9.3.4.
                                                                                                                                                               noncombustible holders for, 2.4.3.3.
                                                                                                    Medium-hazard industrial occupancies (Group F,
                                                                                                                                                               outdoor storage, 3.3.2.8.
                                                                                                         Division 2) (see also Industrial occupancies)
                                                                                                                                                               piping for flammable and combustible liquids,
                                                                                                      aisles in open floor areas, 2.7.1.2.
                                                                                                                                                                   4.5.8.5., 4.5.10.5.
                                                                                                      definition, 1.4.1.2. [A]
                                                                                                                                                               in processions, 2.4.3.1.
                                                                                                      distilleries, 4.10.2.1.
                                                                                                                                                               tents and air-supported structures, 2.9.3.3.
                                                                                                    Mercantile occupancies (Group E)
                                                                                                                                                             Open floor areas, 2.7.1.2.
                                                                                                      aisles in open floor areas, 2.7.1.2.
                                                                                                                                                             Organic peroxides (see Oxidizing substances)
                                                                                                      covered malls, 2.12.1.
                                                                                                                                                             Organizations, 1.3.2.1., 1.5.2. [A]
                                                                                                      definition, 1.4.1.2. [A]
                                                                                                                                                             Outdoor storage, 3.3.
                                                                                                      drapes, curtains and decorative materials, 2.3.2.1.
                                                                                                                                                               access control, 3.3.2.6.
                                                                                                      flammable and combustible liquids, 4.1.5.8., 4.2.5.
                                                                                                                                                               access for firefighting, 3.3.2.5., 3.3.2.7.
                                                                                                      oxidizers storage, 3.2.7.18.
                                                                                                                                                               clearances, 3.3.2.3., 3.3.3.2.
                                                                                                    Movable partitions and screens, flame-spread rating,
                                                                                                                                                               combustible materials near buildings, 2.4.1.1.,
                                                                                                         2.3.1.2.
                                                                                                                                                                   3.3.3.2.
                                                                                                    Multi-purpose loading and unloading facilities,
                                                                                                                                                               compressed gases, 3.1.1.4., 3.1.2.5., 3.3.5.
                                                                                                         4.7.4.2.
                                                                                                                                                               containers for flammable and combustible liquids,
                                                                                                                                                                   4.2.11., 4.7.2.4.
                                                                                                                                                               dangerous goods, 3.1.2.1., 3.3.2., 3.3.4.
                                                                                                                             N                                 fire safety plan, 2.8.2.5.
                                                                                                                                                               fire separation, 3.3.2.14.
                                                                                                    Natural gas, 3.1.1.4., 4.6.1.1., 4.6.3.3.                  fuel dispensing, 3.3.2.12.
                                                                                                    Noncombustible construction                                general commodities, 3.3.2.1., 3.3.3.2.
                                                                                                      definition, 1.4.1.2. [A]                                 height and size, 3.3.2.2., 3.3.2.15.
                                                                                                      hot works, 5.2.3.1.                                      intermodal shipping containers, 3.3.1.1., 3.3.4.8.
                                                                                                      indoor storage of flammable gases, 3.2.8.2.              lumber and forest products, 3.3.2.1., 3.3.3.
                                                                                                      piers and wharves, 4.8.3.1., 4.8.9.2.                    prohibited beneath power lines, 3.3.2.4.
                                                                                                      piping for flammable and combustible liquids,            scope of Code, 3.3.1.
                                                                                                         4.5.6.4.                                              site preparation, 3.3.2.11.
                                                                                                    Nonfixed seating, 2.7.1.5.                                 spill control, 3.3.2.13.


                                                                                                    Index                                                                               National Fire Code of Canada 2020
                                                                                                      storage tanks for flammable and combustible                   piers and wharves, 4.8.4., 4.8.7., 4.8.9.
                                                                                                         liquids, 4.3.2., 4.6.2.1., 4.7.2., 4.8.3.                  pits for submerged pumps, 4.5.9.3., 4.6.2.6.
                                                                                                      tires, 3.3.2.1., 3.3.3.2., 3.3.3.3.                           portable extinguishers, 4.5.10.4., 4.8.6.1.
                                                                                                    Ovens, industrial, 5.4.1.                                       pumps for piping systems, 4.5.9., 4.10.5.
                                                                                                    Oxidizing substances                                            remote pumping stations, 4.6.6.
                                                                                                      fire separations, 3.2.7.5.                                    removal or taking out of service, 4.3.16.4., 4.5.10.7.,
                                                                                                      indoor storage, 3.2.7.1., 3.2.7.8., 3.2.7.9., 3.2.8.3.           5.6.1.11.
                                                                                                      organic peroxides, 3.2.7.5.                                   valves, 4.5.6.8., 4.5.7., 4.6.6.3., 4.6.6.5., 4.8.4.
                                                                                                      reactive substances, 3.1.2.6.                              Pits
                                                                                                      stored in mercantile occupancies, 3.2.7.18.                   prohibited in processing buildings, 4.9.3.3.
                                                                                                                                                                    prohibited for storage of Class I liquids, 4.1.5.8.
                                                                                                                                                                    pump location, 4.6.6.4.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                                P                                   for submerged pumps, 4.5.9.3., 4.6.2.6.
                                                                                                                                                                 Placards
                                                                                                                                                                    dangerous goods storage, 3.2.7.14.
                                                                                                    Pallets
                                                                                                                                                                    posting, 2.1.4.
                                                                                                       aerosols storage, 3.2.5.3., 3.2.5.8.
                                                                                                                                                                    rooms for storage tanks, 4.3.14.4.
                                                                                                       flammable and combustible liquids storage, 4.2.7.5.
                                                                                                                                                                 Plastics, indoor storage of, 2.8.2.4., 3.2.1.1., 3.2.3.1.,
                                                                                                       indoor storage, 3.2.2.4.
                                                                                                                                                                       3.2.3.2.
                                                                                                       outdoor storage, 3.3.3.2.
                                                                                                                                                                 Poisonous and infectious substances, 3.2.7.1., 3.2.8.3.,
                                                                                                    Panic doors (see Doors in means of egress)
                                                                                                                                                                       3.3.5.3., 5.5.5.3.
                                                                                                    Partitions
                                                                                                                                                                 Portable containers (see Containers for flammable
                                                                                                       aerosol storage, 3.2.5.6., 3.2.5.7.
                                                                                                                                                                       and combustible liquids)
                                                                                                       definition, 1.4.1.2. [A]
                                                                                                                                                                 Portable extinguishers
                                                                                                       flame-spread rating, 2.3.1.1., 2.3.1.2.
                                                                                                                                                                    boarding and lodging houses, 2.11.2.1.
                                                                                                    Passageways, exterior, 2.7.1.7.
                                                                                                                                                                    bulk plants, 4.7.5.1.
                                                                                                    Petroleum, crude, storage, 4.3.1.2.
                                                                                                                                                                    construction sites, 5.6.1.5.
                                                                                                    Piers and wharves handling flammable and
                                                                                                                                                                    demolition sites, 5.6.1.5.
                                                                                                          combustible liquids, 4.8.
                                                                                                                                                                    distilleries, 4.10.8.1.
                                                                                                       bulk transfer stations, 4.8.7.
                                                                                                                                                                    flaming meals and drinks, 2.4.3.2.
                                                                                                       cargo hose, 4.8.8.
                                                                                                                                                                    flammable and combustible liquids, 4.5.10.4.,
                                                                                                       cargo pumps, 4.8.9.
                                                                                                                                                                       4.6.9.1., 4.7.5.1., 4.8.6.1., 4.10.8.1., 4.11.2.1.
                                                                                                       clearances, 4.8.2.1.
                                                                                                                                                                    fuel-dispensing stations, 4.6.9.1.
                                                                                                       construction, 4.8.2.2.
                                                                                                                                                                    home-type care occupancies, 2.1.5.1.
                                                                                                       fire protection, 4.8.6.
                                                                                                                                                                    hot works, 5.2.3.6.
                                                                                                       grounding and bonding, 4.8.5., 4.8.11.2.
                                                                                                                                                                    indoor storage of tires, 3.2.4.4.
                                                                                                       piping, valves and fittings, 4.8.4.
                                                                                                                                                                    industrial trucks, 3.2.9.4., 3.3.2.10., 4.10.8.1.
                                                                                                       pump houses, 4.8.10.
                                                                                                                                                                    installation and maintenance, 2.1.5.1., 6.2.1.1.
                                                                                                       storage tanks, 4.8.3.
                                                                                                                                                                    outdoor storage, 3.3.2.10.
                                                                                                       transfer operations, 4.8.11.
                                                                                                                                                                    piers and wharves, 4.8.6.1.
                                                                                                    Pipe risers, 4.5.6.13.
                                                                                                                                                                    selection, 2.1.5.1.
                                                                                                    Piping and pumping systems for flammable and
                                                                                                                                                                    tank vehicles, 4.7.5.1., 4.11.2.1.
                                                                                                          combustible liquids, 4.5.
                                                                                                                                                                    woodworking operations, 5.3.2.3.
                                                                                                       bulk plants, 4.7.2.3., 4.7.4.
                                                                                                                                                                 Portable tanks for flammable and combustible
                                                                                                       cargo pumps, 4.8.9.
                                                                                                                                                                       liquids, 4.2.1.1., 4.2.3., 4.2.8.2.
                                                                                                       corrosion protection, 4.5.3., 4.6.2.4.
                                                                                                                                                                 Power lines, storage beneath, 3.3.2.4.
                                                                                                       demolition sites, 5.6.1.11.
                                                                                                                                                                 Prepackaged containers (see Closed containers)
                                                                                                       distilleries, 4.10.5.
                                                                                                                                                                 Pressure, operating, 4.3.1.4.
                                                                                                       expansion and contraction, 4.5.6.14., 4.6.2.3.
                                                                                                                                                                 Pressure vessels
                                                                                                       fuel-dispensing stations, 4.6.2.3., 4.6.6.
                                                                                                                                                                    definition, 1.4.1.2.[A]
                                                                                                       heating, 4.5.8.
                                                                                                                                                                    piping for flammable and combustible liquids,
                                                                                                       identification, 4.5.4., 4.5.7.6., 4.5.10.3., 4.5.10.7.,
                                                                                                                                                                       4.5.1.1., 4.5.9.5., 4.5.9.6.
                                                                                                          4.8.4.6., 4.8.4.7.
                                                                                                       joints, 4.5.5.                                               storage tanks for flammable and combustible
                                                                                                                                                                       liquids, 4.3.1.3.
                                                                                                       leakage detection, 4.4., 4.5.10.5., 4.8.4.8.
                                                                                                                                                                 Process plants
                                                                                                       location and arrangement of piping, 4.5.6.
                                                                                                       maintenance, 4.5.9.3., 4.5.10.7., 4.7.2.3., 4.7.4.3.,        alternative solutions, 4.1.1.1.
                                                                                                                                                                    definition, 1.4.1.2. [A]
                                                                                                          5.5.3.6.
                                                                                                       materials, 4.5.2.                                            fire prevention and protection, 4.9.4.
                                                                                                       methods of transfer, 4.1.8.3., 4.5.9.                        outdoor processing equipment, 4.9.2.
                                                                                                       oil-burning equipment, 4.3.13.6.                             processing buildings, 4.9.3.
                                                                                                       operating procedures, 4.5.10.                                scope of Code, 4.9.1.1.


                                                                                                    National Fire Code of Canada 2020                                                                                 Index
                                                                                                    Propane, 3.1.1.4., 4.3.2.3., 4.6.1.1., 4.6.3.3.              Refrigerated storage, dangerous goods, 3.1.2.2.,
                                                                                                    Protective guarding devices, 2.2.2.3.                              4.1.4.1., 5.5.5.4.
                                                                                                    Pump houses and rooms, 4.5.9.2., 4.8.10.                     Renovations (see Construction and demolition sites)
                                                                                                    Pumps (see also Piping and pumping systems for               Repairs
                                                                                                         flammable and combustible liquids)                        chimneys, flues and flue pipes, 2.6.1.4., 2.6.1.8.
                                                                                                      cargo, piers and wharves, 4.5.9.3., 4.6.2.6.                 continuity of fire protection, 6.1.1.4.
                                                                                                      containers and storage tanks for flammable and               encapsulation materials, 2.2.3.1.
                                                                                                         combustible liquids, 4.1.8.3., 4.2.9.4.                   fire protection installations, 6.1.1.3.
                                                                                                      control switches, 4.5.9.4.                                   fire separations and closures, 2.2.1.2., 2.2.2.2.,
                                                                                                      distilleries, 4.10.5.                                            2.2.2.4.
                                                                                                      fire, 6.4.1.1.                                               heating equipment, 2.6.1.8.
                                                                                                      outdoor, 4.5.9.1.                                            helicopters, 2.13.2.4.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                      pits for, 4.5.9.3., 4.6.2.6.                                 hot work equipment, 5.2.2.2.
                                                                                                      transferring flammable liquids to fuel tanks of              piping for flammable and combustible liquids,
                                                                                                         vehicles, 4.1.8.4.                                            4.5.10.5., 4.5.10.7.
                                                                                                    Pyrophoric materials, 5.5.5.3.                                 spark arresters, 2.6.2.3.
                                                                                                                                                                   storage tanks for flammable and combustible
                                                                                                                                                                       liquids, 4.3.8.4., 4.4.1.3.
                                                                                                                               R                                 Residential fire warning systems, 6.7.1.1.
                                                                                                                                                                 Residential occupancies (Group C) (see Dwelling
                                                                                                                                                                       units)
                                                                                                    Racks (see also Individual storage areas)
                                                                                                                                                                   construction and demolition, 5.6.3.
                                                                                                      definition, 1.4.1.2. [A]
                                                                                                      indoor container storage of flammable and                    definition, 1.4.1.2. [A]
                                                                                                                                                                   flammable and combustible liquids, 4.2.4.
                                                                                                         combustible liquids, 4.2.7.5.
                                                                                                                                                                   hazardous activities in, 2.1.2.2.
                                                                                                      indoor storage of aerosols, 3.2.5.3., 3.2.5.8., 3.2.5.9.
                                                                                                      indoor storage of dangerous goods, 3.2.7.5., 3.2.7.7.      Restaurants, flaming meals and drinks, 2.4.3.2.
                                                                                                                                                                 Roll coating operations, 5.4.6.
                                                                                                      indoor storage, general, 3.2.1.1., 3.2.2.1.
                                                                                                                                                                 Roofs
                                                                                                    Radioactive materials
                                                                                                      fire safety plan, 2.8.2.3., 2.8.2.8., 5.1.5.1.               access for firefighting, 2.5.1.3.
                                                                                                                                                                   clearances, 3.2.2.3., 3.2.7.5., 4.2.7.7.
                                                                                                      separation from other dangerous goods, 3.2.7.6.
                                                                                                                                                                   helicopter landing areas, 2.13.
                                                                                                      storage, 3.1.1.2.
                                                                                                    Railways                                                       hot surface application, 5.6.1.7.
                                                                                                                                                                 Roofs, floating, in storage tanks, 4.3.1.6.
                                                                                                      clearances, 4.7.2.2., 4.7.4.1.
                                                                                                                                                                 Room dividers, flame-spread rating, 2.3.1.2.
                                                                                                      piping crossing (over or under) or near, 4.5.6.4.,
                                                                                                         4.5.6.5.                                                Rubber products
                                                                                                                                                                   storage, 2.8.2.4.
                                                                                                      track bonding and grounding, 4.7.4.5., 4.8.5.1.
                                                                                                                                                                   tires, outdoor storage, 3.3.2.1., 3.3.3.2., 3.3.3.3.
                                                                                                    Reactive substances
                                                                                                      fire separations, 3.2.7.5.                                   tires, indoor storage, 3.2.1.1., 3.2.2.1., 3.2.4.
                                                                                                      laboratories, 5.5.5.5.
                                                                                                      perchloric acid, 5.5.5.6.
                                                                                                      storage, 3.1.2.6.                                                                    S
                                                                                                      ventilation systems in laboratories, 5.5.3.4., 5.5.3.6.,
                                                                                                         5.5.4.3., 5.5.5.6.
                                                                                                    Recirculating ventilation systems, flammable                 Safety to life (see Life safety)
                                                                                                         vapours, 4.1.7.6.                                       Schools, colleges, universities and daycare facilities,
                                                                                                    Records (see also Documentation)                                   fire emergency procedures, 2.8.1.1.
                                                                                                      doors in means of egress, tests, 2.7.2.2.                  Schools, fire drills, 2.8.3.2.
                                                                                                      emergency power systems, 6.5.1.4.                          Screens, flame-spread rating, 2.3.1.2.
                                                                                                      fire emergency systems in high buildings, 7.1.1.3.         Seating, nonfixed, 2.7.1.5.
                                                                                                      fire safety plan, 2.8.2.1., 2.8.2.12.                      Secondary containment for aboveground storage
                                                                                                      location of dangerous goods, 2.8.2.4., 2.8.2.5.                  tanks, 4.1.6.1., 4.3.2.3., 4.3.7., 4.5.6.4.
                                                                                                      piping and pumping systems for flammable and               Self-service outlets (see also Fuel-dispensing stations)
                                                                                                         combustible liquids, leak tests, 4.4.1.3.                  attendants, 4.6.8.1., 4.6.8.2.
                                                                                                      piping and pumping systems for flammable and                  definition, 1.4.1.2. [A]
                                                                                                         combustible liquids, plans, 4.5.4.2.                       dispensers, card- or key-activated, 4.6.8.4.
                                                                                                      retention, 2.2.1.2. [C], 2.7.2.2., 6.5.1.4., 7.1.1.3.         dispensers, special, 4.6.8.3.
                                                                                                      sprinkler systems, design, 2.8.2.4.                           dispensing hose, 4.6.5.1.
                                                                                                      sprinkler systems, tests, 2.8.2.4.                            dispensing nozzles, 4.6.5.2.
                                                                                                      storage tanks, leak tests, 4.4.1.3.                           emergency shut-off devices, 4.6.4.2.
                                                                                                    Referenced documents, 1.3.1., 1.5.1. [A]                     Self-service storage buildings, flammable and
                                                                                                    Refineries, 1.4.1.2. [A], 4.9.                                     combustible liquids, 4.2.12.


                                                                                                    Index                                                                                 National Fire Code of Canada 2020
                                                                                                    Separators                                                    flammable and combustible liquids, 4.1.5.3.
                                                                                                       aviation fuel, 2.13.2.5.                                   floor finishing, 5.4.4.4.
                                                                                                       dust collection equipment, 5.3.1.9.                        fuel-dispensing stations, 4.6.8.7.
                                                                                                       grain receiving points, 5.3.3.3.                           helicopter landing areas on roofs, 2.13.2.2.
                                                                                                    Service equipment                                             indoor storage, 3.2.2.6.
                                                                                                       electrical equipment vaults, 2.6.3.                        indoor storage of dangerous goods, 3.2.7.2.
                                                                                                       HVAC, 2.6.1.                                               laboratories, 5.5.3.5.
                                                                                                       incinerators, 2.6.2.                                       outdoor storage, 3.3.2.8.
                                                                                                    Service rooms                                                 signs prohibiting, 2.4.2.2., 4.6.8.8.
                                                                                                       combustible materials in, 2.4.1.1.                         tents and air-supported structures, 2.9.3.3.
                                                                                                       definition, 1.4.1.2. [A]                                 Snow and ice clearing, 2.7.1.7., 3.3.2.7.
                                                                                                    Service spaces                                              Space-heating appliances




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                       combustible materials in, 2.4.1.1.                         fire safety practices, 2.6.1.
                                                                                                       definition, 1.4.1.2. [A]                                   indoor storage of combustible fibres, 3.2.6.5.
                                                                                                    Service stations (see Fuel-dispensing stations)               indoor storage of dangerous goods, 3.2.7.2.
                                                                                                    Sheds, storage of flammable and combustible liquids,          indoor storage of flammable gases, 3.2.8.2.
                                                                                                          4.2.4.6.                                              Spark arresters, 2.6.2.3.
                                                                                                    Shutdown                                                    Special fire suppression systems (see also Fire
                                                                                                       continuity of fire protection, 5.6.1.13., 5.6.2.2.,            suppression systems), 2.1.3.5., 6.6.
                                                                                                          6.1.1.4.                                              Spill containment devices, 4.1.6.1., 4.3.6.4., 4.3.15.1.
                                                                                                       emergency power systems, 6.5.1.2.                        Spill containment sumps, 1.4.1.2. [A], 4.3.9.
                                                                                                       fire alarm systems, 6.1.1.4.                             Spill control (see also Absorbent materials, Leak
                                                                                                       fire protection systems, 6.1.1.4.                              detection)
                                                                                                       HVAC systems, 2.6.1.6., 2.6.1.8.                           absorbent materials, 3.2.7.11., 4.1.6.3., 4.2.7.11.,
                                                                                                    Signs                                                             4.6.9.2., 5.5.3.3.
                                                                                                       access for firefighting, obstruction prohibited,           bulk plants, 4.7.2.5., 4.7.6.
                                                                                                          2.5.1.5.                                                container storage of flammable and combustible
                                                                                                       construction and demolition sites, 5.6.3.3.                    liquids, 4.2.9.2., 4.2.11.4.
                                                                                                       exit, 2.7.3., 6.5.1.8.                                     dangerous goods, 3.2.7.4., 3.2.7.11., 3.3.2.13., 5.5.3.3.
                                                                                                       at fire alarm boxes, 2.8.2.14.                             distilleries, 4.10.7.
                                                                                                       fumigation and thermal insecticidal fogging,               drainage, 4.1.6.2.
                                                                                                          5.4.3.6.                                                flammable and combustible liquids, 4.1.6.1.,
                                                                                                       indoor storage of dangerous goods, 3.2.7.14.,                  4.3.6.4., 4.3.15.1.
                                                                                                          5.5.3.1.                                                fuel-dispensing stations, 4.6.3.3., 4.6.7., 4.6.8.6.
                                                                                                       indoor storage, general, 3.2.2.5.                          laboratories, 5.5.3.3.
                                                                                                       indoor storage tanks for flammable and                     outdoor storage, 3.3.2.13.
                                                                                                          combustible liquids, 4.3.14.4.                          piers and wharves, 4.8.7.2., 4.8.11.4.
                                                                                                       laboratories, 5.5.3.1., 5.5.5.5., 5.5.5.6.                 piping for flammable and combustible liquids,
                                                                                                       maintenance, 2.1.4.2.                                          4.5.6.10., 4.5.10.7.
                                                                                                       means of egress, obstruction prohibited, 2.7.1.8.          process plants, 4.9.4.1.
                                                                                                       occupant load, 2.7.1.4.                                    storage tanks for flammable and combustible
                                                                                                       outdoor storage of dangerous goods, 3.3.4.5.                   liquids, 4.3.1.8., 4.3.7., 4.3.8.8., 4.3.13.9., 4.3.14.1.
                                                                                                       piping for flammable and combustible liquids,            Spray coating operations, 5.4.5.
                                                                                                          4.5.6.4.                                              Sprinklered, 1.4.1.2. [A]
                                                                                                       posting, 2.1.4.1.                                        Sprinkler systems (see also Fire suppression systems)
                                                                                                       smoking prohibited, 2.4.2.2., 4.6.8.8.                     change in fire hazard, 2.1.3.1., 2.1.3.5.
                                                                                                       valves controlling flammable and combustible               clearances, 3.2.2.3.
                                                                                                          liquids, 4.5.10.3., 4.8.4.6.                            covered malls, 2.12.1.2.
                                                                                                    Smoke alarms, 1.4.1.2. [A], 2.1.3.3., 6.7.1.1.                design and installation, 2.1.3.1., 3.2.3.3.
                                                                                                    Smoke control in high buildings                               distilleries, 4.10.8.2.
                                                                                                       doors in means of egress, 7.3.1.2.                         fire safety plan, 2.8.2.4.
                                                                                                       inspection and testing, 7.3.                               indoor container storage of flammable and
                                                                                                       venting to aid firefighting, 7.2.3.                            combustible liquids, 4.2.5.2., 4.2.7.5., 4.2.7.6.,
                                                                                                    Smoke dampers, 2.2.2.4.                                           4.2.9.1.
                                                                                                    Smoke venting                                                 indoor storage of aerosols, 3.2.5.5.
                                                                                                       dangerous goods storage, 3.2.7.10.                         indoor storage of combustible fibres, 3.2.6.3.,
                                                                                                       high buildings, 7.2.3.                                         3.2.6.4.
                                                                                                    Smoking                                                       indoor storage of dangerous goods, 3.2.7.5., 3.2.7.9.
                                                                                                       areas prohibited and permitted, 2.4.2.1.                   indoor storage, general, 3.2.3.3.
                                                                                                       construction and demolition sites, 5.6.1.15., 5.6.3.2.     indoor storage tanks for flammable and
                                                                                                       dust-producing processes, 5.3.1.10.                            combustible liquids, 4.3.13.4.


                                                                                                    National Fire Code of Canada 2020                                                                                     Index
                                                                                                       indoor storage of tires, 3.2.4.3.                                   demolition sites, 5.6.1.11.
                                                                                                       maintenance, 6.1.1.2., 6.4.1.1.                                     design, construction and use, 4.3.1., 4.3.13.5.
                                                                                                       notification of tests, 6.1.1.3.                                     dispensing and transfer, 4.1.8.3., 4.2.8.3., 4.7.3.2.,
                                                                                                       protection of combustible piping, 2.1.3.4.                              4.7.3.3., 4.7.4.3., 4.7.4.5.
                                                                                                       tests, 6.4.1.1.                                                     disposal, 4.3.16.3.
                                                                                                    Stairways, construction access, 5.6.3.7.                               distilleries, 4.10.3., 4.10.4.
                                                                                                    Standpipe and hose systems                                             emergency power systems, fuel supplies, 6.5.1.5.
                                                                                                       change in fire hazard, 2.1.3.1.                                     fill piping and connections, 4.3.6.4., 4.3.8.7.,
                                                                                                       construction sites, 5.6.1.6.                                            4.3.12.3., 4.3.15.1., 4.5.6.3.
                                                                                                       demolition sites, 5.6.1.6.                                          fire protection systems, 4.3.2.1., 4.3.2.5.
                                                                                                       design and installation, 2.1.3.1.                                   floating roofs, 4.3.1.6.
                                                                                                       distilleries, 4.10.8.2.                                             fuel-dispensing stations, 4.6.2.1.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                       grain handling and storage, 5.3.3.4.                                grounding and bonding, 4.1.8.2., 4.3.13.12.
                                                                                                       inspection and maintenance, 6.4.1.1.                                handling, 4.1.8.1., 4.2.
                                                                                                       notification of tests, 6.1.1.3.                                     identification, 4.3.1.7., 4.3.14.4.
                                                                                                    Static electricity (see also Grounding and bonding)                    incidental use, 4.2.8.2., 4.2.8.3.
                                                                                                       dust-producing processes, 5.3.1.5., 5.3.1.10., 5.3.3.2.             indoor, 4.2.8.2., 4.2.8.3., 4.3.13., 4.8.3., 4.10.3.
                                                                                                       grain handling and storage facilities, 5.3.3.2.                     installation and use, 4.3.1.9., 4.3.8.6., 4.3.8.7.
                                                                                                       handling of flammable and combustible liquids,                      leakage detection, 4.3.7.7., 4.4.
                                                                                                          4.1.8.2.                                                         low-pressure tanks, 1.4.1.2. [A], 4.3.1.3., 4.3.4.1.
                                                                                                       railway tracks, 4.7.4.5.                                            marine fuel-dispensing stations, 4.6.6.5.
                                                                                                       tank vehicles, 4.11.3.3.                                            mixed storage, 4.3.13.8.
                                                                                                    Steam heating, of piping systems, 4.5.8.2.                             movable tanks, 4.1.8.4.
                                                                                                    Storage arrangements (see also Individual storage                      openings other than vents, 4.3.6., 4.3.12., 4.3.15.
                                                                                                          areas, Indoor storage, Outdoor storage)                          operating pressure, 4.3.1.4.
                                                                                                       aerosols, 3.2.5.1., 3.2.5.8.                                        out of service, 4.3.16.
                                                                                                       ammonium nitrate, 3.2.9.                                            overfill protection, 4.3.1.8., 4.11.3.7.
                                                                                                       combustible materials, 2.4.1.2.                                     piers and wharves, 4.8.3.
                                                                                                       containers for flammable and combustible liquids,                   piping and outlets for vents, 4.3.5., 4.3.11.3.
                                                                                                          4.2.2.2., 4.2.4.2., 4.2.5.2., 4.2.6.3., 4.2.7.5., 4.2.8.2.,      piping and valves, 4.3.6.1., 4.3.6.2., 4.3.7.2., 4.3.7.5.,
                                                                                                          4.2.9.1., 4.2.9.3., 4.2.10., 4.2.11.1., 4.3.13.8.                    4.3.13.6., 4.3.15.1., 4.3.16.4., 4.5., 4.5.6.3., 4.5.7.2.,
                                                                                                       dangerous goods, 3.1.2.4., 3.2.7.5., 3.3.4.2.                           4.7.3.2., 4.7.4.3.
                                                                                                       explosives, 3.1.1.3.                                                portable, 4.2.1.1., 4.2.3., 4.2.8.2.
                                                                                                       industrial trucks, 3.1.3.                                           reuse, 4.3.1.10.
                                                                                                       maximum height, 3.2.2.7., 3.3.2.2.                                  rooms for indoor tanks, 4.3.14.
                                                                                                       radioactive materials, 3.1.1.2.                                     secondary containment, 4.1.6.1., 4.3.2.3., 4.3.7.,
                                                                                                       secondary containment areas, 4.3.7.9.                                   4.5.6.4.
                                                                                                       tires, 3.2.4.                                                       spacing between, 4.3.2.2., 4.3.2.4.
                                                                                                       wood chips, 3.3.3.2.                                                spill control, 4.3.1.8., 4.3.7., 4.3.8.8., 4.3.13.9.,
                                                                                                    Storage cabinets for flammable and combustible                             4.3.14.1.
                                                                                                          liquids, 4.2.10.                                                 supports and foundations, 4.3.3.1., 4.3.8.6.,
                                                                                                       assembly occupancies, 4.2.4.2., 4.2.4.3.                                4.3.13.11., 4.8.3., 4.10.3.2.
                                                                                                       business and personal services occupancies, 4.2.6.2.                underground storage tanks, 4.3.8., 4.3.16.1., 4.8.3.
                                                                                                       care, home-type care, treatment or detention                        vents, 4.3.4., 4.3.5., 4.3.7.6., 4.3.11., 4.3.13.10.,
                                                                                                          occupancies, 4.2.6.2., 4.2.10.3.                                     4.10.3.3.
                                                                                                       educational facilities, 4.2.6.2.                                    withdrawal from service, 4.3.16.
                                                                                                       industrial occupancies, 4.2.7.2., 4.2.10.3.                      Storeys (see also First storey)
                                                                                                       laboratories, 5.5.5.1.                                              boarding and lodging houses, portable
                                                                                                       residential occupancies, 4.2.4.2., 4.2.4.3.                             extinguishers, 2.11.2.1.
                                                                                                    Storage tanks for flammable and combustible liquids,                   definition, 1.4.1.2. [A]
                                                                                                          4.3.                                                             high buildings, fan controls, 7.2.4.1.
                                                                                                       aboveground tanks, 4.3.2., 4.3.16.2., 4.6.2.1., 4.7.2.2.,           high buildings, smoke control measures, 7.3.
                                                                                                          4.7.4.1., 4.8.3.                                                 indoor storage of ammonium nitrate, 3.2.9.2.
                                                                                                       access for firefighting, 4.1.5.6., 4.3.2.4., 4.3.7.5.               indoor storage of dangerous goods, 3.2.7.12.
                                                                                                       anchorages, 4.3.3.3., 4.3.8.9., 4.3.13.11., 4.10.3.2.               indoor storage of flammable and combustible
                                                                                                       atmospheric tanks, 1.4.1.2. [A], 4.3.1.2., 4.3.1.3.,                    liquids, 4.2.7.5., 4.3.13.4.
                                                                                                          4.3.4.1.                                                         outdoor storage, flammable and combustible
                                                                                                       bulk plants, 4.7.2., 4.7.3.2., 4.7.4.1., 4.7.4.3., 4.7.4.5.             liquids, 4.2.11.1.
                                                                                                       corrosion protection, 4.3.1.5., 4.3.8.4., 4.3.8.5.,              Streets
                                                                                                          4.3.10., 4.10.3.1.                                               access for firefighting, 2.5.1.1., 2.5.1.5.
                                                                                                       definition, 1.4.1.2. [A]                                            cars in, at fuel-dispensing stations, 4.6.8.6.


                                                                                                    Index                                                                                            National Fire Code of Canada 2020
                                                                                                      clearances from underground storage tanks,              Tests (see also Leak detection)
                                                                                                          4.3.8.2.                                               cargo hose for flammable and combustible liquids,
                                                                                                      definition, 1.4.1.2. [A]                                      4.8.8.2.
                                                                                                      tank vehicles, at fuel-dispensing stations, 4.11.3.7.      doors in means of egress, 2.7.2.
                                                                                                    Suites                                                       emergency lighting unit equipment, 6.5.1.6.
                                                                                                      definition, 1.4.1.2. [A]                                   emergency power systems, 6.5.1.1., 6.5.1.4.
                                                                                                      mercantile occupancies, flammable and                      fire alarm systems, 6.3.1.2.
                                                                                                          combustible liquids, 4.2.5.2.                          fire emergency systems, 7.1.1.2., 7.2.1.1.
                                                                                                      open floor areas, 2.7.1.2.                                 fire pumps, 6.4.1.1.
                                                                                                    Sumps                                                        fire safety devices, 2.1.3.6.
                                                                                                      construction, 4.3.9.2.                                     high buildings, central alarm and control facility,
                                                                                                      definitions, 1.4.1.2. [A]                                     7.2.4.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                      fuel-dispensing stations, 4.6.3.2.                         high buildings, elevators, 7.2.2.
                                                                                                      installation, 4.3.9.1.                                     high buildings, fan controls, 7.2.4.1.
                                                                                                      leak detection monitoring, 4.3.9.3., 4.4.3.5.              high buildings, hold-open devices, 7.2.4.2.
                                                                                                      penetrations into, 4.5.5.6.                                high buildings, smoke control measures, 7.3.
                                                                                                    Supervisory staff                                            high buildings, venting facilities to aid firefighters,
                                                                                                      access to keys to fire protection equipment, 2.8.1.3.         7.2.3.
                                                                                                      in assembly occupancies, 2.8.1.2.                          high buildings, vestibule doors, 7.2.4.2., 7.3.1.2.
                                                                                                      in care, home-type care, treatment or detention            hydrants, 6.4.1.1.
                                                                                                          occupancies, 2.8.1.2.                                  integrated fire protection and life safety systems,
                                                                                                      copy of fire emergency procedures, 2.8.2.13.                  2.1.3.7., 6.8.1.1.
                                                                                                      definition, 1.4.1.2. [A]                                   piping for flammable and combustible liquids,
                                                                                                      filling of storage tanks, 4.3.1.8.                            control valves, 4.5.10.6.
                                                                                                      fire drills, 2.8.3.1., 2.8.3.2.                            portable extinguishers, 6.2.1.1.
                                                                                                      in high buildings, 2.8.2.2.                                prior to hot works, 5.2.3.4.
                                                                                                      notification of emergency power shutdown, 6.5.1.2.         special fire suppression systems, 6.6.1.1.
                                                                                                      piers and wharves, 4.8.11.1.                               sprinkler systems, 6.4.1.1.
                                                                                                      tank vehicles, 4.11.3.4.                                   standpipe and hose systems, 6.4.1.1.
                                                                                                      training in fire emergency procedures, 2.8.1.2.,           voice communication systems, 6.3.1.4.
                                                                                                          2.8.2.1., 2.8.2.2.                                  Thermal electrical conduction heating, of piping
                                                                                                    Symbols, 1.4.2.1. [A]                                           systems, 4.5.8.4.
                                                                                                                                                              Thermal insecticidal fogging, 5.4.3.
                                                                                                                                                              Tires
                                                                                                                                T                                indoor storage, 3.2.1.1., 3.2.2.1., 3.2.4.
                                                                                                                                                                 outdoor storage, 3.3.2.1., 3.3.3.2., 3.3.3.3.
                                                                                                                                                              Toxic substances (see Poisonous and infectious
                                                                                                    Tank cars, loading and unloading, 4.7.4.                        substances)
                                                                                                    Tank farms (see Bulk plants)                              Training
                                                                                                    Tanks for flammable and combustible liquids (see             conveying equipment, 5.3.3.2.
                                                                                                         Storage tanks for flammable and combustible             dangerous goods, 3.2.7.15., 3.3.4.6., 5.5.3.1.
                                                                                                         liquids)                                                dispensing and transfer of flammable and
                                                                                                    Tank storage (see Storage tanks)                                combustible liquids, 4.5.10.2., 4.6.8.9., 4.8.6.2.,
                                                                                                    Tank vehicles                                                   4.11.3.4.
                                                                                                      bulk plants, 4.7.4., 4.7.5.1.                              fire emergency procedures, 2.8.1.2., 2.8.2.1., 2.8.2.2.
                                                                                                      definition, 1.4.1.2. [A]                                   fuel-dispensing stations, 4.6.8.9.
                                                                                                      hot works, 4.11.2.2.                                       high buildings, supervisory staff, 2.8.2.2.
                                                                                                      loading and unloading, 4.7.4., 4.11.3.                     hot works, 5.2.1.2., 5.2.3.3.
                                                                                                      multi-use compartments, 4.11.3.5.                          industrial trucks, 3.1.3.4.
                                                                                                      parking, 4.11.2.3., 4.11.2.4.                              laboratories, 5.5.3.1.
                                                                                                      portable extinguishers, 4.7.5.1., 4.11.2.1.                leakage detection, 4.4.2.1., 4.4.3.4.
                                                                                                      scope of Code, 4.11.1.1.                                   piers and wharves, 4.8.6.2.
                                                                                                    Temperature                                               Transfer of flammable and combustible liquids (see
                                                                                                      atmospheric storage tanks, 4.3.1.2.                           Dispensing and transfer of flammable and
                                                                                                      dangerous goods storage, 3.1.2.2.                             combustible liquids)
                                                                                                      flammable and combustible liquids storage, 4.2.2.2.     Transformer vaults, 2.6.3.
                                                                                                      fumigation and thermal insecticidal fogging,            Transition sumps, 1.4.1.2. [A], 4.3.9.
                                                                                                         5.4.3.5.                                             Transport, dangerous goods, 3.1.2.5., 3.2.9.3., 3.3.4.8.
                                                                                                      laboratory equipment, 5.5.3.5.                          Treatment occupancies (see Care, home-type care,
                                                                                                    Temporary enclosures, buildings, 5.6.1.19.                      treatment or detention occupancies)
                                                                                                    Tents, 2.9.                                               Turbine sumps, 1.4.1.2. [A], 4.3.9.


                                                                                                    National Fire Code of Canada 2020                                                                              Index
                                                                                                                                  U                                      dangerous goods storage, 3.2.7.3., 3.2.7.10.
                                                                                                                                                                         dispensing of flammable and combustible liquids,
                                                                                                    Unit equipment for emergency lighting, 6.5.1.6.                          4.6.3.3.
                                                                                                    Unstable liquids                                                     distilleries, 4.10.6.
                                                                                                      container storage and handling, 4.2.1.1.                           flammable and combustible liquids, 4.1.7.
                                                                                                      definition, 1.4.1.2. [A]                                           floor finishing, 5.4.4.3.
                                                                                                      laboratories, 5.5.4.2.                                             fumigation and thermal insecticidal fogging,
                                                                                                      process plants, 4.9.2.1., 4.9.3.1., 4.9.3.2.                           5.4.3.6.
                                                                                                      storage tanks, 4.3.2.1., 4.3.2.2., 4.3.4.2.                        grain storage bins, 5.3.3.1.
                                                                                                    Used lubricating oil, 4.1.2.4., 4.3.1.8.                             hazardous locations, 5.1.3.
                                                                                                                                                                         incidental use of flammable and combustible
                                                                                                                                                                             liquids, 4.2.8.3.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                                                  V                                      laboratories, 5.5.3.6., 5.5.4., 5.5.5.5., 5.5.5.6.
                                                                                                                                                                         piping for flammable and combustible liquids in
                                                                                                                                                                             trenches, 4.5.6.10.
                                                                                                    Vacant buildings, 2.4.6.
                                                                                                                                                                         processing buildings, 4.9.3.4.
                                                                                                    Valves controlling flammable and combustible liquids
                                                                                                                                                                         storage cabinets for flammable and combustible
                                                                                                      access to, 4.3.7.5., 4.8.4.6., 4.8.7.1.
                                                                                                                                                                             liquids, 4.2.10.6.
                                                                                                      bulk plants, 4.7.3.2., 4.7.4.3., 4.7.4.4.
                                                                                                                                                                         storage tanks for flammable and combustible
                                                                                                      check, 4.3.15.2., 4.5.9.5., 4.7.4.3.
                                                                                                                                                                             liquids, 4.3.13.9.
                                                                                                      design, 4.5.7.1.
                                                                                                                                                                       Ventilation shafts, 2.6.1.7.
                                                                                                      diaphragm, 4.5.7.3.
                                                                                                                                                                       Vents
                                                                                                      dispensing and transfer, 4.2.9.4., 4.5.7.2., 4.5.10.3.,
                                                                                                                                                                         aboveground storage tanks, 4.3.4.1., 4.3.5.
                                                                                                         4.6.4.3., 4.6.5.2., 4.6.6.3., 4.7.3.2., 4.7.4.3., 4.7.4.4.,
                                                                                                                                                                         distillery storage tanks, 4.10.3.3.
                                                                                                         4.8.4.5.
                                                                                                                                                                         high buildings, 7.1.1.4., 7.2.3.
                                                                                                      drainage systems, 4.1.6.2.
                                                                                                                                                                         indoor storage tanks, 4.3.13.10.
                                                                                                      emergency, 4.5.7.1., 4.5.10.3., 4.6.6.3., 4.7.3.2.
                                                                                                                                                                         secondary containment areas, 4.3.7.6.
                                                                                                      fire safety plan, 2.8.2.7.
                                                                                                                                                                         underground storage tanks, 4.3.11.
                                                                                                      fuel-dispensing stations, 4.6.5.2., 4.6.6.3.
                                                                                                                                                                         unstable liquids, 4.3.4.2.
                                                                                                      globe, 4.5.7.4.
                                                                                                                                                                       Vertical service spaces
                                                                                                      hose nozzle, 4.5.7.1., 4.6.5.2., 4.6.8.6.
                                                                                                                                                                         definition, 1.4.1.2. [A]
                                                                                                      hydraulic transfer systems, 4.5.9.5.
                                                                                                                                                                         high buildings, 7.3.2.1., 7.3.3.1., 7.3.5.1., 7.3.7.1.,
                                                                                                      identification, 4.5.7.6., 4.5.10.3., 4.5.10.7., 4.8.4.6.,
                                                                                                                                                                             7.3.10.1.
                                                                                                         4.8.4.7.
                                                                                                                                                                       Voice communication systems
                                                                                                      indicating or rising stem, 4.5.7.5.
                                                                                                                                                                         supervisory staff training, 2.8.2.2.
                                                                                                      inert gas transfer systems, 4.5.9.6.
                                                                                                                                                                         tests, 6.3.1.4.
                                                                                                      inspection and tests, 4.5.10.5., 4.5.10.6., 4.8.4.6.
                                                                                                                                                                         where required, 2.1.3.2., 2.9.3.5.
                                                                                                      marine fuel-dispensing stations, 4.6.4.3., 4.6.6.5.
                                                                                                      materials, 4.5.2., 4.5.7.2.
                                                                                                      piers and wharves, 4.8.4., 4.8.7.1., 4.8.7.3., 4.8.9.1.
                                                                                                      piping at entrances to buildings, 4.5.6.8., 4.5.7.2.                                          W
                                                                                                      piping for flammable and combustible liquids,
                                                                                                         4.5.6.8., 4.5.7., 4.8.4.                                      Waste disposal (see also Spill control)
                                                                                                      relief, 4.8.9.1.                                                   ashes, 2.4.1.3.
                                                                                                      self-closing, 4.1.8.3., 4.2.9.4., 4.3.15.2., 4.7.4.4.              combustible waste, 2.4.1., 5.6.3.4.
                                                                                                      shut-off, 4.5.6.8., 4.5.7.2., 4.5.10.2., 4.5.10.3., 4.6.4.3.,      dangerous goods, 3.2.7.4., 3.2.7.11., 4.1.6.3., 5.5.5.7.
                                                                                                         4.7.4.4., 4.8.4.5., 4.8.7.3.                                    daycare centres, 2.10.3.2.
                                                                                                      solenoid, 4.6.6.5., 4.7.3.2.                                       greasy and oily rags, 2.4.1.3., 4.1.5.4., 5.4.4.5.
                                                                                                      storage tanks, 4.3.6.1., 4.3.6.2., 4.3.7.5., 4.3.15.1.,            incinerators, 2.6.2., 3.3.2.8.
                                                                                                         4.3.15.2., 4.5.7.2., 4.7.3.2., 4.7.4.3.                         receptacles, 2.4.1.3., 4.1.5.4., 4.1.6.3., 5.3.2.2., 5.4.4.5.
                                                                                                      tank vehicles, 4.7.4.4., 4.11.3.4.                                 shavings and sawdust, 5.3.2.2.
                                                                                                      training, 4.5.10.2.                                              Waste materials
                                                                                                    Valves controlling water supplies, 3.3.2.7., 4.1.6.1.                accumulation, 2.4.1.1.
                                                                                                    Valves for fire protection equipment, 4.5.10.2.,                     storage rooms, 2.4.1.2.
                                                                                                         4.5.10.3.                                                     Waste receptacles, 2.4.1.3., 4.1.5.4., 4.1.6.3., 5.3.2.2.,
                                                                                                    Vaults, electrical equipment, 2.6.3.                                    5.4.4.5.
                                                                                                    Vehicles, propane-fuelled, 2.12.1.9.                               Water-based fire protection systems, 6.4.
                                                                                                    Ventilation                                                        Water-miscible liquid mixtures
                                                                                                      ammonium nitrate storage, 3.2.9.2.                                 classification, 4.1.2.2.
                                                                                                      compressed gas storage, 3.2.8.2., 3.2.8.3.                       Water supplies
                                                                                                      container storage of flammable and combustible                     construction sites, 5.6.3.5.
                                                                                                         liquids, 4.2.10.6.                                              demolition sites, 5.6.1.9., 5.6.3.5.


                                                                                                    Index                                                                                          National Fire Code of Canada 2020
                                                                                                      excavation sites, 5.6.2.2.
                                                                                                      outdoor storage, 3.3.2.7.
                                                                                                      process plants, 4.9.4.3.
                                                                                                    Water used for firefighting, 2.8.2.7., 3.2.7.6., 4.1.6.1.,
                                                                                                        4.3.7.3., 5.6.3.5., 6.4.
                                                                                                    Welding and cutting (see Hot works)
                                                                                                    Wood bins, 2.6.1.2.
                                                                                                    Wood chips (see Lumber and forest products)
                                                                                                    Woodworking operations, 5.3.2.




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays




                                                                                                    National Fire Code of Canada 2020                            Index
                                                                                                                 Conversion Factors

                                                                                                    To Convert              To           Multiply by
                                                                                                       °C                   °F          1.8 and add 32
                                                                                                        kg                  lb.             2.205
                                                                                                       kPa             lbf/in.2 (psi)      0.1450
                                                                                                       kPa                lbf/ft.2          20.88
                                                                                                        L               gal. (imp.)        0.2200




Copyright © NRC 1941 - 2022 World Rights Reserved © CNRC 1941-2022 Droits réservés pour tous pays
                                                                                                       L/s            gal./min (gpm)        13.20
                                                                                                       L/h            gal./min (gpm)       0.00367
                                                                                                       L/m2              gal./ft.2         0.0204
                                                                                                        m                   ft.             3.281
                                                                                                       m2                   ft.2            10.76
                                                                                                       m3                   ft.3          35.314475
                                                                                                       mm                   in.            0.03937
                                                                                                       m/s                ft./min           196.8
