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Canadian Registration Number (CRN)

Under the Boiler and Pressure Vessel Act, 2000, and as per respective Canadian provincial and territorial boiler and pressure vessel regulations, a Canadian registration number (CRN) is a number issued by appointed Canadian jurisdication safety authorities to an original equipment manufacturer (OEM) of pressure retaining boilers, vessels, fittings, appurtenances, non-piping systems and other non-exempt pressure retaining equipment prior to legal sale and use in Canada.