DriveSmartBC

Commercial Vehicle Safety & Enforcement (CVSE) will recognize only the Canadian Standards Association (CSA) Z240 RV certification. Due to issues raised, the United States Recreational Vehicle Industry Association (RVIA) certification process for recreational vehicles manufactured or constructed in North America will no longer be accepted.

Link:

Read CVSE Circular 09-10 which replaces Circular 03-09 (PDF)
Trailers and Mobile Homes - Division 31 MVAR