Selling into Canada, CRN registration, N.B. Oler technical library

Selling into Canada, CRN Registration

An ASME stamp is not a CRN. Ask before you buy.

DocumentCRN Registration
AuthorityTSSA Ontario
Revision2026.1
Issued17 September 2026
Canadian jurisdictions require a Canadian Registration Number for pressure fittings and vessels before they can be installed. N.B. Oler holds six CRNs registered with the Technical Standards and Safety Authority of Ontario, valid through August 24, 2032.
6CRN registrationsHeld in N.B. Oler's own name
2032Valid through24 August 2032
TSSARegistering authorityOntario, fitting, conventional

OUR REGISTRATIONS

CRN Registered to Authority Valid to
0H24151.5 N.B. Oler, LLC TSSA Ontario 24 Aug 2032
0H24152.5 N.B. Oler, LLC TSSA Ontario 24 Aug 2032
0H24154.5 N.B. Oler, LLC TSSA Ontario 24 Aug 2032
0H24184.5 N.B. Oler, LLC TSSA Ontario 24 Aug 2032
R8694.5 N.B. Oler, LLC TSSA Ontario 24 Aug 2032
R8841.5 N.B. Oler, LLC TSSA Ontario 24 Aug 2032
Registration type Fitting, conventional
Main design number NB-MS-6-24 / 17670s-3 R0
Submitting engineer Pressure Vessel Engineering Ltd., St. Jacobs, Ontario
Registered system 20 LB hydrocarbon extraction system

Other provinces

The registrations above are Ontario registrations. Canada does not operate a single national register, each province and territory maintains its own, and a CRN registered in one province is commonly accepted or extended into others through a recognized process rather than automatically. If you are installing outside Ontario, contact us with your province before you order and we will tell you exactly where the paperwork stands for your jurisdiction.

WHAT A CRN IS, AND WHY IT STOPS PROJECTS

A Canadian Registration Number is a design registration. It says that the pressure-retaining design has been reviewed by a provincial authority and accepted for use in that jurisdiction. It is separate from, and in addition to, the ASME code stamp on the vessel itself.

The failure mode is predictable and expensive. A Canadian operator buys an American-built system with a perfectly valid ASME U stamp, installs it, calls for inspection, and is told the design is not registered in their province. At that point the equipment is in the room, the money is spent, and the registration process starts from zero with an engineering review that takes months.

Ask before you buy, not after

An ASME stamp is not a CRN. A supplier who cannot give you a CRN number is telling you something.

What to ask any supplier

  1. 01What is the CRN number for this design?
  2. 02Which province registered it, and when does it expire?
  3. 03Who is the submitting engineer of record?
  4. 04Is it registered as a fitting, a vessel, or both?
  5. 05Can I have a copy of the registration letter for my inspector?

We can answer all five in writing, on request, for any of the numbers above.

SHIPPING NORTH

  • Systems ship from Bend, Oregon. Crated weight on a 20 LB system is about 1,500 lbs.
  • Your Certificate of Conformance is serialized to your individual system and includes site-specific seismic calculations, which inspectors on both sides of the border ask for.
  • The parent Engineering Certification Report is PE stamped and peer reviewed.
  • Training certificates are issued per operator and are frequently requested by Canadian authorities.
  • Site requirements, utilities and lead times are the same as a domestic install. See Site Requirements and Lead Times.

Registration letters, design numbers and expiry dates available on request. Call 541-330-6409, Monday to Thursday, 8 to 4 Pacific, or use the contact form and tell us your province and your AHJ.

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