Main Categories

1.1 General

This Standard specifies requirements for open profile polypropylene (PP) storm sewer pipe and fittings for leak-proof applications.

Profile wall pipe includes only open profile with smooth interior and sizes based on controlled inside diameter. Open profile pipe is of an annular construction.

Notes:

Pipe and fittings manufactured in accordance with this Standard should be installed in accordance with CSA B182.11.

See Annex A for recommended quality control test frequencies.

See Annex B for base inside diameters.

See Annex C for fitting patterns of the lay length of fittings covered by this Standard.

See Annex D for perforation details.

Annex E should be followed to ensure the requested products are described adequately.

Appropriate structural design criteria for PP storm sewer pipe can be found in Appendix X2 of ASTM F2881/F2881M.

1.2 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.1 General

This Standard specifies requirements for profile polypropylene (PP) sewer pipe and fittings for leak-proof applications (e.g., sanitary sewer and other gravity-flow applications).

Profile wall pipe includes both open and closed profile with smooth interiors and sizes based on controlled inside diameter. Open and closed profile pipe are both of an annular construction but not compatible or interchangeable due to structural differences in profile geometries.

Notes:

Pipe and fittings manufactured in accordance with this Standard should be installed in accordance with CSA B182.11.

See Annex A for recommended quality control test frequencies.

See Annex B for base inside diameters.

See Annex C for fitting patterns of the lay length of fittings covered by this Standard.

Annex D should be followed to ensure the requested products are described adequately.

Appropriate structural design criteria for PP sewer pipe can be found in ASTM F2764/F2764M.

1.2 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.1 General

This Standard specifies requirements for profile steel reinforced polyethylene (SRPE) sewer pipe and fittings for storm sewer, and other gravity-flow applications.

Profile wall pipe in this Standard includes open profile pipe of helical construction, with a smooth interior and sizes based on controlled inside diameter. The pipe can be perforated for specific applications as required.

Notes:

Pipe and fittings manufactured in accordance with this Standard should be installed in accordance with CSA B182.11.

The structural design of this product should be in accordance with the manufacturer’s recommendations.

See Annex A for recommended quality control test frequencies.

See Annex B for base inside diameters used to determine installation deflection limits.

See Annex C for fitting patterns covered by this Standard.

See Annex D for examples of Type 3 non-gasketed coupling joints.

The ordering recommendations in Annex E should be followed to ensure the requested products are described adequately.

1.2 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

General

This Standard specifies requirements for profile steel reinforced polyethylene (SRPE) sewer pipe and fittings for sanitary sewer and other gravity-flow applications.

Profile wall pipe in this Standard includes open profile pipe of helical construction, with a smooth interior and sizes based on controlled inside diameter. The pipe can be perforated for specific applications as required.

Notes:

Pipe and fittings manufactured in accordance with this Standard should be installed in accordance with CSA B182.11.

The structural design of this product should be in accordance with the manufacturer’s recommendations.

See Annex A for recommended quality control test frequencies.

See Annex B for base inside diameters used to determine installation deflection limits.

See Annex C for fitting patterns covered by this Standard.

The ordering recommendations in Annex D should be followed to ensure the requested products are described adequately.

1.2 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

Draft Amendment to C22.1

Draft Amendment to C22.1

Draft Amendment to C22.1

Draft Amendment to C22.1

Draft Amendment to C22.1 

Draft Amendment to C22.1 

1.1 These requirements cover individually enclosed air switches, rated 6000 A or less at 1000 V ac or 1500 V dc or less, having all current-carrying parts enclosed, manually operable by means of external handles, and intended to be employed in accordance with CSA C22.1, Canadian Electrical Code, Part I / NOM-001-SEDE, Electrical installations (utility) / NFPA 70®, National Electrical Code® (NEC®).

NOTE: NFPA 70®, National Electrical Code®, and NEC® are registered trademarks of the National Fire Protection Association, Quincy, MA.

1.2 As used in this Standard, the term switch is intended to mean an enclosed switch or deadfront switch unless specifically stated otherwise.

1.3 These requirements also cover dead front switches that have all current-carrying parts enclosed when mounted in an enclosed panelboard, dead front switchboard, or the like. These switches are manually operable by means of external handles and are intended to be employed in accordance with CSA C22.1, Canadian Electrical Code, Part I / NOM-001-SEDE, Electrical installations (utility) / NFPA 70®, National Electrical Code® (NEC®).

1.4 These requirements cover enclosed switches with or without provision for fuses suitable for use as branch circuit, feeder, and service overcurrent protection.

1.5 The following fuses are deemed suitable for use as branch circuit, feeder, and service overcurrent protection:

a) Cartridge Fuses;

b) Plug Fuses; and

c) Special Purposes Fuses marked as meeting the performance specifications of a specific Class Fuse.

1.6 These requirements cover enclosed switches intended for general use and having ampere ratings, with or without horsepower or kilowatt ratings, and enclosed switches intended for motor-circuit use only and having horsepower or kilowatt ratings but no general-use ampere ratings.

1.7 These requirements cover double-throw switches intended for use in optional standby systems (see CSA C22.1, Canadian Electrical Code, Part I / NOM-001-SEDE, Electrical installations (utility) / NFPA 70®, National Electrical Code® (NEC®)).

1.8 These requirements cover fused electrically tripped switches rated over 600 A and rated 600 A or less employing Class J, R or T fuses.

1.9 These requirements also cover electrically tripped switches that have been evaluated to determine their acceptability for ground-fault protection when combined with ground-fault sensing and relaying equipment as follows:

a) Switches for use with Class I ground-fault sensing and relaying equipment include those that are capable of interrupting 12 times their rated current or that have integral means to prevent disconnecting as levels of fault current exceeding the contact interrupting capability of the switch.; or

b) Switches for use with Class II ground-fault sensing and relaying equipment are capable of interrupting 10 times their rated current and are for use in ground-fault protection systems in which means to prevent disconnecting at levels of fault current exceeding the contact interrupting capability of the switch are incorporated within the ground-fault sensing and relaying equipment when combined with Class I and II ground-fault sensing and relaying equipment.

1.9A These requirements cover electrically tripped switches that have been evaluated to determine their acceptability as a ground-fault circuit-interrupter in accordance with CSA C22.2 No. 144.1 / NMX-J-520-ANCE / UL 943 or special purpose ground-fault circuit-interrupter in accordance with UL 943C. 

1.9B This Standard contains Annexes with requirements to cover the following:

a) Enclosed and Deadfront Switches Intended for Marine Use, Annex SA;

b) Open Type Switches, Annex BB; and

c) Electrical Operators, Annex CC.

1.10 These requirements do not cover:

a) Common forms of snap switches,;

b) Switches having features intended primarily for the starting and protection of motors, including the switches arranged to shunt out fuses during the starting of motors,;

c) Switches provided with automatic trips for opening them and constructed to afford overload protection without other circuit breakers or fuses,;

d) Devices in which the pulling of fuses or the removal of a detachable pullout member is designed to accomplish a switching operation;

e) Circuit breakers, molded-case switches, magnetic-only circuit interrupters, instantaneous-only circuit breakers, and supplementary protectors.; or

f) Double-throw switches for bidirectional applications.

Draft Amendment to C22.1

Draft Amendment to C22.1

1.1 Inclusions

This Document specifies the requirements and minimum standards for the design and manufacture, installation and operation of portable, transportable and mobile hydrogen fuelling units. These systems include:

a)    transportable refuelling systems that are intended to be removed from the delivery vehicle or trailer and placed on the ground to perform dispensing operations;

b)    mobile fuelling units that are permanently affixed to a stationary wheeled trailer; and

c)    “wet hose” mobile refuelling units that can deliver hydrogen to vehicles on road or in the field.

1.2 Exclusions

This Document does not apply to:

a)    permanently installed hydrogen refuelling equipment, facilities, stations and systems;

b)   transfer of gaseous hydrogen (GH2) from the GH2 vehicle fuel storage system of one vehicle to the GH2 vehicle storage system of another vehicle;

c)    the defuelling of hydrogen powered vehicles;

d)   listed hydrogen residential fuelling appliances; or

e)    mobile equipment containing compressed hydrogen or cryogenic hydrogen in the act of being transported or offered for transport in accordance with Transport Canada or U.S. Department of Transportation regulations.

1.3 Conflicts

In case of conflict between this Document and federal, provincial, state, or local regulations, governmental regulations take precedence.

1.4 Pressure terminology

All references to pressure throughout this Document are to be considered gauge pressure unless otherwise specified.

1.5 Terminology

In this Document, “shall’ is used to express a requirement; “should” is used to express a recommendation or that which is advised but not required; “may” is used to express an option or that which is permissible within the limits of the Document.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.6 Use of measure

The values given in SI units are the units of record for the purposes of this Document. The values given in parentheses are for information and comparison only.

This Standard provides a national framework for the assessment, design, implementation, and maintenance of Nature-based Solutions (NbS) for managing coastal flood and erosion risks. It supports a systems-based approach grounded in adaptive management, performance monitoring, and evidence-based decision-making to sustain long-term functionality of NbS under dynamic environmental conditions. The Standard applies to coastal environments across Canada, including marine shorelines, Great Lakes coasts, and estuarine systems. It offers guidance suitable for a range of settings—from urbanized coastlines to remote or ecologically sensitive areas—and is intended for use at various stages of project planning and execution.

This Standard also addresses the importance of engagement with interested parties, including Rights and Title Holders, to support inclusive, collaborative, and locally grounded decision-making.

While the Standard promotes the broad application of NbS, it acknowledges that not all solutions are suitable for all regions. Regional variability in environmental, social, cultural, and geomorphic may affect the feasibility, design, and expected outcomes of NbS. As such, the Standard provides a flexible framework that allows for adaptation to local context.

1.1 Inclusions

This Standard applies to coastal flood and erosion management projects including:

a)  shoreline and estuarine environments for the:

i)   Pacific, Arctic and Atlantic Oceans; and

ii)  the Great Lakes;

b)  projects with exposure to:

i)   sea-level rise;

ii)  seasonal changes in water level

iii) storm surges;

iv) tidal influence;

v)  wave action;

vi) shoreline instability;

vii) coastal erosion and deposition processes;

viii)   coastal shoreline flooding; and

ix) compound flooding;

c)  relevant to project scales including:

i)   site-specific;

ii)  reach-scale;

iii) system-scale; and

iv) regional scale.

Note: More information on project scales is provided in Clause 7.3.

d)  applications across urban, and rural coastal settings;

e)  explicit consideration of climate change impacts on coastal processes; and

f)   Indigenous-led and co-developed coastal flood and erosion management NbS initiatives.

Note: In the context of this Standard, coastal refers to the interface between land and large water bodies, encompassing both oceanic shorelines and shorelines of the Great Lakes. This definition recognizes that although Great Lakes shorelines are not marine, they exhibit many of the same geomorphic, hydrodynamic, and risk management challenges as ocean coasts.

1.2 Exclusions

While the approaches contained within this Standard could be applied more broadly, the following is explicitly excluded from this Standard:

a)  natural hazard events such as Tsunamis, earthquakes, volcanoes, etc.;

b)  riverine-only flood or erosion risk measures unrelated to coastal dynamics;

c)  pluvial, groundwater, or debris flow hazards unless acting in conjunction with coastal processes;

d)  non-flood or erosion-related applications of NbS (e.g., solely for biodiversity, recreation, or urban greening); and

e)  projects relying exclusively on grey infrastructure, except where integrated as hybrid NbS systems.

In addition, this Standard does not address procurement or regulatory compliance beyond general guidance provided in Section 7.

1.3 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate the text from explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

NbS terminology and definitions vary and are highly dependent on the context in which they are used. Users shall refer to the definitions specified within this standard.

La présente norme fournit un cadre national pour l’évaluation, la conception, la mise en œuvre et la maintenance des solutions fondées sur la nature (SFN) afin de gérer les risques d’érosion et d’inondation côtières. Elle s’appuie sur une approche systémique axée sur la gestion adaptative, la surveillance de la performance et la prise de décisions fondée sur des données probantes afin de maintenir la fonctionnalité à long terme des SFN dans des conditions environnementales dynamiques. La norme s’applique aux milieux côtiers partout au Canada, y compris les rivages marins, les côtes des Grands Lacs et les systèmes estuariens. Elle offre des conseils adaptés à une variété de contextes – des lignes côtières urbanisées aux zones éloignées ou écosensibles – et est destinée à être utilisée à diverses étapes de la planification et de l’exécution d’un projet.

La présente norme traite également de l’importance de la mobilisation des parties intéressées, y compris les détenteurs de droits et de titres, pour appuyer la prise de décisions inclusives, collaboratives et locales.

Bien que la norme encourage l’application générale des SFN, elle reconnaît que toutes les solutions ne conviennent pas à toutes les régions. La variabilité régionale de l’environnement, de la société, de la culture et de la géomorphologie peut avoir une incidence sur la faisabilité, la conception et les résultats attendus des SFN. Par conséquent, la norme offre un cadre flexible qui permet de l’adapter au contexte local.

1.1 Inclusions

La présente norme s’applique aux projets de gestion de l’érosion et des inondations côtières, qui touchent notamment :

a)  les milieux riverains et estuariens pour :

i)   les océans Pacifique, Arctique et Atlantique; et

ii)  les Grands Lacs;

b)  les projets comportant des risques d’exposition :

i)   à l’élévation du niveau de la mer;

ii)  aux variations saisonnières du niveau d’eau;

iii) aux ondes de tempête;

iv) à l’influence des marées;

v)  à l’effet des vagues;

vi) à l’instabilité des rivages;

vii) à l’érosion côtière et aux modes de déposition;

viii)   aux inondations côtières; et

ix) aux inondations composées;

c)  les échelles de projet pertinentes, y compris :

i)   l’échelle propre au site;

ii)  l’échelle du tronçon;

iii) l’échelle du système; et

iv) l’échelle régionale.

Note : D’autres renseignements sur les échelles de projet sont fournis à l’article 7.3.

d)  les applications dans les milieux côtiers urbains et ruraux;

e)  la prise en compte explicite des impacts des changements climatiques sur les processus côtiers; et

f)   les initiatives de SFN pour la gestion de l’érosion et des inondations côtières dirigées par les Autochtones et élaborées conjointement.

Note : Dans le contexte de cette norme, le terme « côtier(s) ou cotière(s) » désigne l’interface entre les terres et les grands plans d’eau, englobant à la fois les rives océaniques et les rives des Grands Lacs. Cette définition reconnaît que même si les rives des Grands Lacs ne sont pas des rives marines, elles présentent bon nombre des mêmes défis géomorphologiques, hydrodynamiques et de gestion des risques que les côtes océaniques.

1.2 Exclusions

Bien que les approches contenues dans la présente norme puissent être appliquées de manière plus générale, les éléments suivants sont explicitement exclus de la norme :

a)  les phénomènes dangereux naturels comme les tsunamis, les séismes, les volcans, etc.;

b)  les mesures de risques d’érosion ou d’inondation riveraines seulement qui ne sont pas liées à la dynamique côtière;

c)  les risques de ruissellement pluvial, d’eau souterraine ou de débris, à moins qu’ils agissent conjointement avec les processus côtiers;

d)  les applications des SFN non liées à l’érosion ou aux inondations (p. ex., uniquement pour la biodiversité, les loisirs ou le verdissement urbain); et

e)  les projets reposant exclusivement sur les infrastructures grises, sauf lorsque celles-ci sont intégrées sous forme de systèmes hybrides de SFN.

De plus, la présente norme ne traite pas des questions d’approvisionnement ou de conformité réglementaire au-delà des renseignements généraux fournis à la section 7.

1.3 Terminologie

Dans la présente norme, le terme « doit » indique une exigence, c.-à-d. une prescription que l’utilisateur est obligé de respecter pour assurer la conformité à la présente norme; « devrait » indique une recommandation ou ce qu’il est conseillé, mais non obligatoire; et « peut » indique une option ou ce qui est permis compte tenu des limites de la présente norme.

Les notes qui accompagnent les articles ne comprennent pas d’exigences ni d’exigences alternatives; le but d’une note accompagnant un article est de séparer le texte des éléments explicatifs ou informatifs.

Les notes au bas des tableaux et des figures font partie du tableau ou de la figure et peuvent être rédigées comme des exigences.

Les annexes sont qualifiées de normatives (obligatoires) ou d’informatives (facultatives) pour en préciser l’application.

La terminologie et les définitions associées aux SFN varient et dépendent fortement du contexte dans lequel elles sont utilisées. Les utilisateurs doivent consulter les définitions indiquées dans la présente norme.

1.1 This Standard applies to luminaires for use in non-hazardous locations and that are intended for installation on branch circuits of 600 V nominal or less between conductors in accordance with the Canadian Electrical Code, Part I (CEC), CSA C22.1, with the U.S. National Electrical Code (NEC), ANSI/NFPA 70, and with the Mexican National Electrical Code, NOM-001-SEDE.

1.2 This Standard does not apply to luminaires covered by other standards. The luminaries not covered by this Standard include:

Amateur Movie Lights;

Aquarium Lights;

Cabinet Lights;

Decorative Lighting Strings;

Combination Fan/IR Lamps Used for Heating;

Electric Signs;

Exit Signs;

Ultraviolet (UV) Germicidal Equipment and Systems

Junction Boxes for Swimming Pool Fixtures;

Lamp Adapters;

Low-Level Path Marking and Lighting Systems in the United States;

Low-Voltage Landscape Lighting as follows:

For products intended for installation in Canada, landscape lighting systems that are 30 V nominal or less; and

For products intended for installation in Mexico, low-voltage landscape lighting devices that are 24 V nominal or less.

For products intended for installation in the United States, low-voltage landscape lighting devices that are of 15 V nominal or less;

Low Voltage Lighting Fixtures for Use in Recreational Vehicles;

Low Voltage Marine Lighting;

Luminaires for Hazardous Locations;

Luminaires for Recreational Vehicles in the United States;

Marine Navigational Lights;

Marine-Type Fixtures;

Portable Electric Displays;

Portable Hand Lamps;

Portable Luminaires;

Portable Sun/Heat Lamps;

Self-Ballasted Lamps and Lamp Adapters;

Stage and Studio Luminaires;

Submersible Luminaires;

Swimming Pools Luminaires;

Temporary Lighting Strings;

Therapeutic Lamps;

Track Lighting Systems;

Under-cabinet Lights in Canada and Cord-connected Under-cabinet Lights in the United States; and

Unit Equipment for Emergency Lighting.

1.3 Requirements applicable to light emitting diode (LED) components and subassemblies integral to a luminaire covered by this standard are provided in UL 8750 and CSA C22.2 No. 250.13.

1.4 In Canada and the United States, this standard does not address the additional construction, performance and marking considerations for Luminaires used in fire-resistance-rated floor-ceiling, roof-ceiling or wall assemblies. Building construction materials surrounding the luminaire may be subjected to additional test requirements of the applicable Building Codes of both countries as per the applicable standards.

1.5 (USA) Some luminaires are identified for installation in locations that are in the scope of the National Electrical Safety Code® (NESC®), IEEE-C2. The administrative authority exercising jurisdiction over the application of the NECS® can require compliance with this standard. In such a case, evaluation of products to this standard can apply the alternative requirements in Annex L necessary for installation in accordance with the NESC®.

1.1 This Standard applies to Class A, single- and three-phase, ground-fault circuit-interrupters intended for protection of personnel, for use only in grounded neutral systems in accordance with the NFPA 70®, National Electrical Code® (NEC®) and the Canadian Electrical Code, Part I, and Electrical Installations (Use), NOM-001-SEDE. These devices are intended for use on alternating current (AC) circuits of 120 V, 208Y/120 V, 120/240 V, 127 V, or 220Y/127 V, 60 Hz circuits.

NOTE: In Canada, the text “intended for protection of personnel” is excluded.

NFPA 70®, National Electrical Code®, and NEC® are registered trademarks of the National Fire Protection Association, Quincy, MA.

1.2 These requirements do not cover ground-fault circuit-interrupters intended for use in circuits served by a transformer having windings wholly insulated from each other.

1.3 This Standard applies to all Class A ground-fault circuit-interrupters. These Class A GFCIs are permitted to be integrated into other devices, in which case, besides complying with this Standard, these devices are to comply with the corresponding applicable Standard for the device in question.

1.4 This Standard includes minimum requirements for the function, construction, performance, and markings of ground-fault circuit-interrupters included in the scope.

1.5 This Standard is intended to cover only Class A GFCI devices.

1.6 This Standard also covers GFCIs of the self-contained type that are intended for installation in a counter, such as would be suitable for installation in a kitchen or bathroom countertop.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.5        Units of measurement

If a value for measurement as given in this Standard is followed by an equivalent value in other units, the first stated value is to be regarded as the specification.

1.1  General

This Standard specifies the technical requirements for the owner/operator to evaluate cold-worked Zr-2.5 wt% Nb alloy pressure tubes in operating CANDU reactors for continued operation. Clause 13 of CSA N285.0/N285.6 Series requires that when in-service inspection results or material surveillance results do not satisfy the requirements of the original inspection program, a fitness-for-service evaluation must be performed in accordance with CSA N285.4 to demonstrate acceptance. The requirements of this Standard address the specific fitness-for-service evaluation requirements of CSA N285.4, Clause 12.

1.2  Application to pressure tube material type

This Standard applies only to cold-worked Zr-2.5 wt% Nb alloy pressure tubes in operating CANDU reactors and to evaluation of the volumetric inspection results, pressure tube to calandria tube contact, and material surveillance measurements listed herein. The definition of pressure tube material types within the scope of this Standard is provided in CSA N285.6.1.

1.3  Application exclusions

This Standard does not apply to evaluation of pressure tube dimensional changes (other than pressure tube to calandria tube contact), material property surveillance measurements beyond those defined in CSA N285.4, or other reactor types. This Standard does not apply to pressure tube materials other than cold-worked Zr-2.5 wt% Nb.

1.4  Application of standard to lifecycle phases

The requirements of this Standard are applicable to the operational phase of a nuclear power plant, until the fuel is removed from the entire reactor core and up to the time at which systems for cooling of the fuel are drained for the purpose of refurbishment or decommissioning of the reactor core.

This Standard is not applicable to the decommissioning phase of the nuclear power plant life cycle.

1.5  Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.