CRN for Pressure Vessels in Canada

Reviewed by Dhruv Barot, P.Eng. · Last updated: March 1, 2026

Unless a provincial exemption applies, a pressure vessel generally requires a valid CRN for each province or territory where it will be installed in Canada. Kopfkino Consulting manages every step of pressure vessel CRN registration, from design review through P.Eng. authentication and provincial authority submission.

Applicable Design Codes

• ASME Section VIII Division 1: standard code for most industrial process vessels
• ASME Section VIII Division 2: alternative rules for higher-pressure vessels
• ASME Section VIII Division 3: for very high-pressure vessels above 10,000 psi
• ASME Section I: power boilers above 15 psig
• CSA B51: governs registration requirements supplementing ASME codes

CRN Submission Package Contents

• P.Eng.-authenticated general arrangement and detail drawings
• Complete design calculations: shell, heads, nozzles, supports
• Material specifications and certifications
• P.Eng. cover letter confirming code compliance
• Authority-specific forms (TSSA data sheet, ABSA Form 1, etc.)

Typical Timelines by Province

• ABSA (Alberta): 10-20 weeks
• TSSA (Ontario): 8-16 weeks
• TSBC (BC): 8-14 weeks
• ACI Central (7 jurisdictions): 6-12 weeks

Frequently Asked Questions

Does my vessel need CRN if built outside Canada?

Yes. CRN is required for the design regardless of where the vessel is manufactured. Foreign manufacturers must obtain CRNs before shipping to Canada.

"The single most expensive CRN mistake we see is treating registration as an afterthought. Design for CRN from day one: pick your provinces early, align the calculations with CSA B51 before the drawings are finalized, and most submissions clear review in a single comment round."