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Regulations of Northwest Territories


Please be advised that the synopsis has been supplied for information purposes only and should not be considered as the interpretation of the rules and regulations. Users are advised to send an enquiry to or directly consult with the safety authority of each province/territory before making any decisions that may have critical consequences. Acetake Group assumes no liability for the use or misuse of the information herein.


Department of Public Works & Services - Electrical/Mechanical Safety Division

Department of Public Works & Services - Electrical/Mechanical Safety Division is the authority for safety programs related to pressure equipment and gas in the Northwest Territories. For Northwest Territories, the following organizations are responsible for certifying the products used in Elevating devices, Electrical, Boiler and Pressure Vessel and Gas:

  • Canadian Gas Association (CGA)

  • Canadian Standards Association

  • Intertek Testing Services NA Ltd.

  • Warnock Hersey Professional Services Ltd.

  • Entela, Inc

  • TUV Rheinland of North America

  • Quality Auditing Institute Ltd. (QAI)

  • LabTest Certification Inc

  • Underwriters' Laboratories of Canada

  • MET Laboratories, Inc

  • Standards Council of Canada

  • TUV Product Service

  • QPS

  • FM Approvals

  • Nemko

  • ENEFEN Canada


1. Pressure Vessels and Pressure Piping

This Regulation, applies to the design, construction, maintenance, use, operation, repair and service of boilers, pressure vessels and piping in the Northwest Territories (see Pressure Vessels and Pressure Piping Regulation under Links).


As indicated in the Regulation above, no person shall install, alter, repair, or add to a boiler, pressure vessel or pressure piping system unless that person has an installation permit entitling him or her to do so.


Boilers and pressure vessels require one annual external inspection or periodic as required by the chief boiler inspector. Internal inspection is at the discretion of the chief boiler inspector.


Inspections made by any duly incorporated insurance company may be accepted, subject to the chief boiler inspector’s recommendation, in lieu of inspections made by the department. A copy of all inspection reports must be filed with the chief boiler inspector within 21 days. The chief boiler inspector must be notified of cancelation, suspension, or rejection of insurance.


CRN Registration:

Before it is manufactured, fabricated, inspected, installed or operated in Northwest Territories, a Canadian Registration Number (CRN) with ACI Central Inc. (ACIC) is required for the boiler or pressure vessels. ACIC is a non-profit organization overseeing the CRN registration, safe installation and operation of technical systems and equipment in Prince Edward Island, Nova Scotia, New Brunswick, Newfoundland and Labrador, Yukon, Northwest Territories, and Nunavut. ACIC is incorporated under the laws of Prince Edward Island and its membership is voluntary.


2. Fuels

The installation of natural gas/propane appliances, equipment, components and accessories where gas is to be used for fuel purposes, as well as propane storage and handling is controlled under Gas Protection Regulations RRNWT 1990,c.G-1 (see Gas Protection Regulations under Links).


The Gas Section is responsible for establishing and interpreting the Gas Protection regulations to ensure installation and product safety compliance.


For performing any gas fitting work, gas protection permits are required. The gas supplier will not provide a meter or gas unless a valid permit has been issued.


Go to Provincial Regulations