CRN

What is CRN?



The Canadian Registration Number (CRN) is a number issued by each province or territory of Canada for a component (fitting), equipment or piping system.

The CRN indicates that the design of the component (fitting), equipment or piping system meets the safety requirements outlined in the applicable codes, standards and regulations of that province or territory and the product is accepted for use. The province or territory is represented by a numeric digit or a letter following the decimal point after registration number, which indicates the location in which the design is registered to. The digits and letter corresponding to each province and territory are as following:

  • 1 = British Columbia
  • 2 = Alberta
  • 3 = Saskatchewan
  • 4 = Manitoba
  • 5 = Ontario
  • 6 = Quebec
  • 7 = New Brunswick
  • 8 = Nova Scotia
  • 9 = Prince Edward Island
  • 0 = Newfoundland
  • N = Nunavut
  • T = Northwest Territories
  • Y = Yukon Territory


A product may be registered to more than one province or territory at same time. In this case, the first digit or letter after the decimal refers to the first registering province or territory. For example, a design registered first in Ontario and then in Alberta might be issued the number 4321.52.


What are the categories of Fittings?

CSA B51-14 Table 1: Categories of Fittings
CategoryType of Fitting
APipe fittings, including couplings, tees, elbows, wyes, plugs, unions, pipe caps, and reducers
BAll flanges
CAll line valves
DAll types of expansion joints, flexible connections, and hose assemblies
EStrainers, filters, separators, and steam traps
FMeasuring devices, including pressure gauges, level gauges, sight glasses, levels, and pressure transmitters
GCertified capacity-rated pressure relief devices acceptable as primary overpressure protection on boilers, pressure vessels and pressure piping, and fusible plugs
HPressure-retaining components that do not fall into Categories A to G


Why Amoz Consulting?

Pressure retaining components like boilers, pressure vessels, heat exchangers, steam traps, piping systems, and fittings, valves and flanges are required to be registered and obtain a Canadian Registration Number in the province(s) of application/installation. The process can be complex and time consuming for companies unfamiliar with the regulator’s requirements.

Amoz Consulting experts have submitted and obtained a large number of CRN over the past 10 years. Whether it is a fitting, pressure vessel, boiler, or piping system that you want to get CRN registration for, Amoz Consulting can help with the design and evaluation to ensure its strict compliance with the governing adopted codes, standards, and regulations.

Amoz Consulting offer a simple Fees structure based on the number of CRN applications, their complexity and the provinces covered in the application.

CRN Codes & Standards we are experts in:

  • CSA B51
  • CSA B52
  • ASME Section I
  • ASME Section II.A, II.B, II.D
  • ASME Section IV
  • ASME Section V
  • ASME Section VIII.1
  • ASME B31.1
  • ASME B31.3
  • ASME B31.5
  • ASME B16.5, B16.9, B16.11, B16.34
  • CSA Z662