What Is a Canadian Registration Number (CRN)?

A Canadian Registration Number (CRN) is a unique identifier issued by a provincial or territorial safety authority in Canada, confirming that the design of a pressure-containing component has been reviewed by a licensed Professional Engineer (P.Eng.) and accepted as compliant with CSA B51 and the applicable ASME construction code.

History of CRN in Canada

Canada's pressure equipment registration system dates to the early twentieth century. The framework is governed today by CSA B51, the Boiler, Pressure Vessel, and Pressure Piping Code. Each province administers its own authority — TSSA in Ontario, ABSA in Alberta, TSBC in British Columbia, TSASK in Saskatchewan, OFC in Manitoba, RBQ for Quebec, and ACI Central Inc. managing seven Atlantic and Northern jurisdictions.

Why Canada's System Is Unique

Unlike the European PED or US ASME stamping, Canada's CRN system registers the individual design. Every design iteration requires review; the registration travels with the drawings, not the manufacturer. A single CRN enables unlimited production of identical registered equipment.

Kopfkino's CRN Registration Services

Kopfkino Consulting Corp., based in Vaughan, Ontario, provides end-to-end CRN registration services for pressure vessels, fittings, piping systems, and boilers across all 13 Canadian jurisdictions. Our licensed P.Eng. team reviews designs, prepares submission packages, seals drawings, and manages all correspondence with TSSA, ABSA, TSBC, TSASK, OFC, RBQ, and ACI Central.

• P.Eng. licensed in Ontario, Alberta, British Columbia, and Yukon
• 14+ years of CRN registration experience
• All 13 provinces and territories covered
• Typical submission-to-CRN timelines: 6–12 weeks

Frequently Asked Questions

Is a CRN the same as an ASME stamp?

No. An ASME stamp certifies the manufacturer's quality management system. A CRN registers the specific design with a Canadian provincial authority.

Can a foreign manufacturer apply for a CRN?

Yes. CRN registration is design-based, not manufacturer-based. Kopfkino regularly obtains CRNs for US, European, and Asian manufacturers entering the Canadian market.