Main Categories

1.1 General

Clauses 4 to 6 outline the requirements for HPD materials, laboratory sound attenuation measurements, physical tests, reporting and packaging for manufacturers of HPDs to be used in occupational settings.

Clause 7 covers the selection, care and use of HPDs. The Standard specifies procedures for estimating the effective A-weighted noise exposure level while wearing HPDs based on laboratory sound attenuation measurements. In addition, a procedure referred to as hearing protector fit testing (HPFT) that evaluates the individual workers’ attenuation using Field Attenuation Estimation Systems (FAES) is also specified.

1.2 Inclusions

The following types of HPDs are covered in this Standard:

a) earplugs;

b) earmuffs; and

c) acoustic helmets.

The sound attenuation testing and reporting requirements set forth in this Standard apply to:

a) general (passive) hearing protection devices;

b) the passive attenuation of electronic HPDs when the electronics are turned off; and

c) amplitude-sensitive (passive level-dependent) HPDs are at low levels. 

Note: Refer to Annex A for a comprehensive description of the different types and features of specialized HPDs.

1.3 Exclusions

This Standard does not address the testing and reporting requirements related to specialized attenuation measurements and/or HPD features such as:

a)    special methods and metrics related to impulsive noise reduction of HPDs (such as the impulsive peak insertion loss (IPIL);
b)    level dependency of sound-restoration (active level-dependent) when the electronics are turned on;

c) level dependency of amplitude-sensitive (passive level-dependent) HPDs at high levels; or

d)    active attenuation component of active noise reduction (ANR) devices.

Note: Refer to Standard ASA/ANSI S12.42 for guidance on the applicable methods for specialized attenuation measurements of HPDs.

1.4 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

1.1 Inclusions

This Standard applies to vacuum waste-collection systems intended to extract and transport water, condensate from refrigerators, sanitary waste, greywater, or grease and specifies requirements for system equipment and components, field-installed drainage piping, vacuum plumbing fixtures, backflow prevention, materials, construction, performance testing, and markings. This Standard also provides guidance for vacuum system design, verification, and commissioning.

Notes:

The terms “vacuum waste-collection system”, “vacuum drainage system”, and “vacuum system” are used interchangeably. In this Standard, the term “vacuum system” is used.

Annex A contains a gauge vacuum pressure equivalence table.

Annex B specifies tests for plastic pipe for field-installed drainage systems.

Annex C covers the design of vacuum systems and comprises three major sections: a description and operation of vacuum systems (Clause C.1), design factors (Clause C.2), and design parameters (Clause C.3).

Annex D specifies the procedure for calculating wastewater flow rates.

Annex E specifies the procedure for sizing pipes and buffer/accumulators.

Annex F indicates procedures and tests for the verification and commissioning of vacuum systems. Table F.3 provides the requirements for the verification of the design factors and parameters specified in Clauses C.2 and C.3.

Annex G specifies the procedure for the field-installed plastic vacuum drainage piping tightness test.

1.2 Exclusions

This Standard does not apply to

gravity drainage systems upstream of the vacuum system; and

plumbing fixtures upstream of the vacuum system.

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; “may” is used to express an option or that which is permissible within the limits of the standard; and “can” is used to express possibility or capability.

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.

1.4 Units of measurement

The values stated in either SI (metric) or inch/pound units are to be regarded as the standard. SI units are the units of record in Canada.

In this Standard, the inch/pound units are shown in parentheses. The values stated in each measurement system are equivalent in application; however, each system is to be used independently. Combining values from the two measurement systems can result in non-conformance with this Standard.

All references to gallons are to U.S. gallons.

All references to pressures are to gauge pressures. A vacuum pressure equivalence table is included in Annex A.

1.5 Alternative materials

The requirements of this Standard are not intended to prevent the use of alternative materials or methods of construction provided such alternatives meet the intent and requirements of this Standard.

1.1 Généralités

La présente norme précise les exigences, critères, méthodes d’analyse et procédures de conception pour

déterminer les spectres de réponse de conception et les diagrammes d’évolution des mouvements du sol à utiliser dans l’analyse;

établir des critères de conception pour les structures, systèmes et composants (SSC), et les supports nécessitant une qualification parasismique; et

effectuer des analyses sismiques, y compris les effets de l’interaction sol-structure.

1.2 Applications

La présente norme s’applique aux SSC des centrales nucléaires qui nécessitent une qualification parasismique par des méthodes analytiques (voir CSA N289.1). La présente norme peut également être appliquée aux SSC qui ne nécessitent pas une qualification parasismique explicite jugée appropriée par l’exploitant ou par l’autorité compétente (AC).

1.3 Autres applications

La présente norme peut être appliquée, selon les besoins, à d’autres centrales nucléaires visées par la Loi sur la sûreté et la réglementation nucléaires.

1.4 Terminologie

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

Les notes qui accompagnent les articles ne comprennent pas de prescriptions ni de recommandations. Elles servent à séparer du texte les explications ou les renseignements qui ne font pas proprement partie de la norme.

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.

Draft Amendment to C22.1

1.1 General

This Standard specifies the requirements, criteria, methods of analysis, and design procedures for

determining the design response spectra and ground motion time-histories to be used in the analysis;

establishing design criteria for structures, systems and components (SSCs), and supports that require seismic qualification; and

performing seismic analyses, including the effects of the soil-structure-interaction.

1.2  Applications

This Standard applies to SSCs in nuclear power plants that require seismic qualification by analytical methods (see CSA N289.1). This Standard may also be applied to SSCs that might not require explicit seismic qualification as deemed appropriate by the operating organization or by authorities having jurisdiction (AHJ).

1.3  Other Applications

This Standard may be applied, as appropriate, to other nuclear facilities under the jurisdiction of the Nuclear Safety and Control Act.

1.4  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 the requirements, criteria, methods of analysis, and design procedures for

determining the design response spectra and ground motion time-histories to be used in the analysis;

establishing design criteria for structures, systems and components (SSCs), and supports that require seismic qualification; and

performing seismic analyses, including the effects of the soil-structure-interaction.

1.2  Applications

This Standard applies to SSCs in nuclear power plants that require seismic qualification by analytical methods (see CSA N289.1). This Standard may also be applied to SSCs that might not require explicit seismic qualification as deemed appropriate by the operating organization or by authorities having jurisdiction (AHJ).

1.3  Other Applications

This Standard may be applied, as appropriate, to other nuclear facilities under the jurisdiction of the Nuclear Safety and Control Act.

1.4  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 describes Cold Load Pick Up Management (CLPUM) performance and testing procedures to help standardize Cold Load Pick Up management requirements in the residential sector based on the loss of load diversity and intervention level (level 1: passive, level 2: active), to support grid management

1.2 Users

This Standard is intended to be used by power utility companies, aggregators, original equipment manufacturers (OEMs) and Home Energy Management Systems (HEMS). This standard is also intended to be used by 3rd party certification bodies. 

1.3 Application

This standard defines testing and performance specifications for residential equipment CLPUM as a grid service both in its passive and active forms. The standard focuses on the following technologies: Unidirectional Level 2 and above Electric Vehicles (EV) Chargers, space cooling and heating systems, water heaters and home energy management systems.

1.4 Inclusions

This standard applies to residential equipment CLPUM for unidirectional Level 2 and above EV chargers, space cooling and heating systems, water heaters and home energy management systems installed and / or used in the residential sector.

1.5 Exclusions

This standard does not apply to technologies that are not listed under Clause 1.4. The standard does not apply to analog (bi-metallic) thermostats. Finally, this standard will not address the in-rush current phase of the CLPUM.

1.6 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 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 explanatory or informative material from the text.

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.

1.7 Units of measurement

The values given in SI units are the units of record for the purposes of this Standard

Draft Amendment to C22.1

Draft Amendment to C22.1

Clause 1  of IEC 60601-1:2005, IEC 60601-1:2005/AMD1:2012 and IEC 60601-1:2005/AMD2:2020 applies, except as follows: 

 201.1.1  *Scope 

Replacement:

This part of IEC 60601-2 applies to BASIC SAFETY and ESSENTIAL PERFORMANCE of equipment incorporating one or more sources of OPTICAL RADIATION in the wavelength range 200 nm to 3 000 nm, with the exception of laser radiation, and intended to create photobiological effects in humans for therapeutic, diagnostic, monitoring, and cosmetic or aesthetic applications; hereafter referred to as light source equipment (LS EQUIPMENT). 

 This document applies to LS EQUIPMENT of RISK GROUP 1C if the incorporated source of OPTICAL RADIATION is of RG-3, and of Risk Group 3. 

 NOTE 1 For classification rules for Risk Groups, see 201.6.1.102. 

 This document does not apply to equipment for sun tanning such as sunlamp products, for ophthalmic instruments, for lighting purposes in medical or cosmetic environments, for photography/video, for equipment which produces visual or non-visual effects such as circadian entrainment, or for infant phototherapy and infant radiant warmers. This document does not apply to sterilization equipment. 

 This document does not apply to home-use appliances. It does not apply to home light therapy equipment, such as equipment which is intended to be used in the HOME HEALTHCARE ENVIRONMENT and is typically used by a LAY OPERATOR. 

 NOTE 2 Home-use appliances are covered by IEC 60335-2-113:2016 [1]. Appliances for skin exposure to OPTICAL RADIATION, such as sunlamp products, are covered by IEC 60335-2-27 [2]. Home light therapy equipment providing light therapy by means of eye-mediated photobiological effects, which can be visual or non-visual, and skin-mediated photobiological effects, possible applications including pain relief, psoriasis treatment, and treatment of winter depression (SAD), are also covered by IEC 60601-2-83:2019 [3]. 

 NOTE 3 Safety requirements in this document are intended to address only HAZARDS to the eye and superficial tissues including skin or mucosa. As OPTICAL RADIATION does not penetrate more than a few millimetres in tissue, HAZARDS to underlying tissues are not considered. 

Replacement:

This part of IEC 60601 applies to the BASIC SAFETY and ESSENTIAL PERFORMANCE of X-ray based IMAGE-GUIDED RADIOTHERAPY equipment for use with EXTERNAL BEAM EQUIPMENT (EBE).

This document covers safety aspects of kilovoltage (kV) and megavoltage (MV) X-ray imaging devices integrated in a specified geometrical relationship with EBE for the purpose of IGRT. It covers aspects of communication and relationships between the EXTERNAL BEAM EQUIPMENT and X-ray imaging devices, attached or not directly attached to, but in the same RADIATION shielded area as, and dedicated for use only with, the EXTERNAL BEAM EQUIPMENT.

This document deals with equipment for OFFLINE X-IGRT, ONLINE X-IGRT and REAL-TIME X-IGRT. It covers procedures to reduce the risk of over-reliance on the X-IGRT EBE SYSTEM. For example, in the case of ONLINE X-IGRT, the MANUFACTURER will provide an interactive interface for user interaction with the correction suggested by the system.

This document does not apply to CT SCANNERS, X-RAY EQUIPMENT for RADIOGRAPHY, and X-RAY EQUIPMENT for RADIOSCOPY, that are not intended for use for IGRT.

Requirements that are being tested according to another standard can be identified by the manufacturer. If these requirements are equivalent, retesting is not required, but instead evidence can refer to the CT SCANNER, X-RAY EQUIPMENT for RADIOGRAPHY, or X-RAY for RADIOSCOPY manufacturer's compliance statements or test reports.

If the X-IGRT EQUIPMENT is combined with an MEE, any requirement that is the same for the X-IGRT EQUIPMENT and the MEE, such as a PATIENT POSITIONER, is not required to be tested twice, but can be accepted as tested by the MEE.

This document applies to X-RAY EQUIPMENT for RADIOGRAPHY, RADIOSCOPY, and COMPUTER TOMOGRAPHY used for IGRT.

If a clause or subclause is specifically intended to be applicable to X-IGRT EBE SYSTEMS, the content of that clause or subclause will say so. Where that is not the case, the clause or subclause applies only to X-IGRT EQUIPMENT.

This document, with the inclusion of TYPE TESTS and SITE TESTS, applies respectively to the MANUFACTURER and some installation aspects of X-IGRT EBE SYSTEMS intended to be

for NORMAL USE, operated under the authority of the RESPONSIBLE ORGANIZATION by QUALIFIED PERSONS having the required skills for a particular medical application, for particular specified clinical purposes, e.g., STATIONARY RADIOTHERAPY or MOVING BEAM RADIOTHERAPY,

maintained in accordance with the recommendations given in the INSTRUCTIONS FOR USE, and

subject to regular quality assurance performance and calibration checks by a QUALIFIED PERSON.

NOTE In this document, all references to installation refer to the installation in the RESPONSIBLE ORGANIZATION'S premises.

1.1 The requirements of this standard cover holders and connectors for electric lamps, including incandescent, fluorescent, and other electric-discharge-type lamps, rated as indicated in Clause 6, to be used in accordance with CSA C22.1, Canadian Electrical Code (CE Code), Part I, and the National Electrical Code (NEC), ANSI/NFPA 70.

1.2 These requirements cover screw lampholders, including those intended to be mounted directly on an outlet-box,lampholders for special uses, lampholders for electric signs, and adapters that convert one lampholder size to another.

1.3 These requirements also cover holders for automatic starters used with fluorescent lamps.

1.4 These requirements also cover GU24 and GU24-1 holders for fluorescent and LED self-ballasted lamps and fluorescent lamp adapters with mating pin bases.

1.5 These requirements also cover indicator lamps.

1.6 These requirements also cover lampholder inserts.

1.7 These requirements also cover naval-use lampholders. See Supplement SB.

1.8 These requirements do not cover fluorescent self-ballasted lamps and fluorescent lamp adapters covered in UL 1993.

1.9 These requirements do not cover seasonal-lighting lampholders, which are covered in UL 588, and CSA C22.2 No. 37.

1.10 These requirements do not cover electrode receptacles for use in gas-tube signs, which are covered in UL 879 and CSA C22.2 No. 34.

1.11 These requirements do not cover devices requiring a cross-bar, mounting strap, or other mounting means; such devices are considered to be luminaires.

1.12 These requirements do not cover nightlights, which are covered in UL 1786 and CSA C22.2 No. 256.

1.13 These requirements do not cover ceiling outlet-box lampholders that incorporate one or more of the following features:
a) more than one lampholder;
b) provisions for conduit connection such as openings or knockout;
c) an integral ballast, transformer or power supply; or
d) a lamp shade or lamp guard that completely encloses the lamp.
Such devices are covered by UL 1598 and CSA C22.2 No. 250.0.

1.14 In Canada, general requirements applicable to these products are provided in CSA C22.2 No. 0.

1.1 

This Standard specifies requirements for single- and multi-conductor insulated cables having metallic interlocked armour without an overall jacket (Type AC90 or ACG90) or with an overall jacket (Type ACWU90 or ACGWU90) that are intended for installation in accordance with CSA C22.1, Canadian Electrical Code, Part I, on systems having nominal voltages of 2000 V and less. ACG90 and ACGWU90 apply to multi-conductor cables only. ACG90 and ACGWU90 shall have voltages of 600 V and less.

1.2 

This Standard specifies requirements for cables having insulated conductors in sizes 18 AWG to 2000 kcmil. The maximum cable temperature rating is 90 °C.

Note: See Annex B for a summary of the cable types covered by this Standard and corresponding constructions, voltage ratings, and the number and size of conductors for the types to which this Standard applies.

1.3 

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.

This clause of Part 1 is applicable, except as follows:

Addition:

This part of IEC 62841 applies to hand-held drain cleaners.

NOTE 101 Drain cleaners are also known as pipe cleaners.

This standard does not apply to transportable drain cleaners.

NOTE 102 Transportable drain cleaners will be covered by a future part of IEC 62841-3.

This standard does not apply to machines that use a solid rod to clean drains.

1.1 Inclusions

This Document specifies the minimum testing requirements for verifying the fuelling protocols specified in SAE J2601/5 and the communications protocols in SAE J2799.

This Document applies to dispensing systems, referred to as “dispensers”, designed to fill vehicle storage systems in accordance with SAE J2601/5.

Notes:

1) The SAE J2601/5 fuelling protocols target rapid fills while respecting temperature, pressure, and fuel density safety limits.

2) This Document is a minimum requirement. Manufacturers can take additional safety precautions.

1.2

This Document was developed for and is intended to be used with the specific editions of SAE J2601/5 and SAE J2799 as referenced in Clause 2.

1.3

For dispensers with the capability for communications with the vehicle, these test methods include the approach to confirm the requirements specified in SAE J2799 and SAE J2601/5.

1.4

Newly manufactured dispensers should be tested in accordance with this Document prior to initial operation of the dispenser for fuelling vehicles. This Document is also intended to provide test methods for validation of existing dispensers.

1.5

Unless otherwise specified, the requirements in this Document apply to the verification of SAE J2601/5 compliant hydrogen fuelling stations (HFS).

1.6

In the case of conflict between this Document and federal, provincial/territorial, state, or local requirements, the governmental requirements take precedence.

1.7

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.

1.8

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

1.9

In this Document, “shall” is used to express a requirement, i.e., a provision that the user shall satisfy in order to comply with the Document; “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.

1.1    General

The Standard describes essential elements and specific requirements and recommendations for the care of persons living with dementia in home and community care settings. It is intended for use by all persons living with dementia as well as groups and individuals who deliver care to persons living with dementia in those settings, including

a)   home and community care service organizations, whether public, private or non-profit.

b)   Agencies involved in the oversight, education and support of home and community care organizations.

c)   health care professionals, administrators, and support personnel employed by the home and community care organization

d)   Care partners; and

e)   subcontractors.

This Standard includes requirements and recommendations for supporting quality of life through directed living standards for persons living with dementia and care partners with specific attention to:

a)   needs assessment.

b)   the health, safety, and well-being of persons living with dementia, and care partners; and

c)   the health and safety of care personnel.

d)   access to education and training to care partners, about dementia, as well as how to support persons living with dementia

e)   workforce recruitment, training, evaluation, and retention.

f)    organizational structures, management systems, resources, policies, procedures and practices.

g)   measures to support person-centered care (including direct involvement of the person living with dementia in care decisions, consistent with their abilities), equal access to care, and respecting the privacy and dignity for all persons living with dementia.

h)  policies to support equal access to services, and to provide care that respects and responds to an individual’s cultural, national, linguistic, religious, and sexual and gender identity.

i)    building public awareness and education around stigma and myths regarding dementia.

j)    planning, management, provision and ongoing evaluation of individualized care plans

k)   evaluation and continual improvement of system-level services to persons living with dementia; and

l)    Basic modifications to the physical environment to support care, where possible.

1.2   Exclusions

1.2.1

This Standard does not comprise a comprehensive set of requirements for home and community care organizations. The scope of the development of this standard is to address the identified need for dementia-specific care requirements for home and community care. The standard shall be used as a supplement to general home and community care standards, to help ensure that the needs of persons living with dementia within the program population are planned for and properly addressed.  It can be used to support implementation or improvement of services to persons living with dementia in both new and existing programs.

1.2.2

This Standard does not address clinical practice.

1.2.3

This standard was created for home and community care settings exclusive of long-term care (LTC), however many of the principles herein are also applicable to LTC settings.

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 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 This Standard applies to 60 – 250°C single- or multiple-conductor jacketed or unjacketed, integral or nonintegral cables and single or multiple coaxial cables for telephone and other communication circuits such as voice, data, and audio for on-premise customer systems. These cables are may contain one or more optical fibre members. For the purpose of this Standard, a coaxial cable or coaxial member conductor is a single conductor with a shield. For the purpose of this Standard, a single- or multiple-conductor unjacketed cable is a cross-connect wire.

1.2 This Standard applies to communications cables that are intended primarily for installation in accordance with Section 60 – Electrical Communication Systems of the Canadian Electrical Code Part I, CSA C22.1; and Article 800 – General Requirements for Communications Systems of the National Electrical Code (NEC)NFPA 70. They are rated for 300 V applications, but are not so marked.

NOTE: See Annex A for a complete list of wire types covered by this Standard and the specific electrical codes for which they are intended.

1.3 This Standard does not apply to communications cords.

1.4 In Canada, the Type "-CI" circuit integrity markings are not recognized by the Canadian Electrical Code, Part I.

1.5 In the US, Type CMH is not recognized in the NEC.

Draft Amendment to C22.1