Canada made a number of changes to their tank marking regulations as of 1993.
As of January 1 1993 all scuba tanks manufactured for use in Canada must have the TC stamp on them. Any tanks manufactured prior to 1993 are grandfathered if:
As of January 1 1993 all scuba tanks manufactured for use in Canada must have the TC stamp on them. Any tanks manufactured prior to 1993 are grandfathered if:
- The tank is marked CTC, DOT, or ICC
- cylinder was in use in Canada prior to 1993