TSSA Pneumatic Specs

Is canadian TSSA mandatory in Canada or US codes accepted?

Depends on the province, they all appear to have different specs.

You are, indeed, right.

TSSA does not regulate boilers and pressure vessels for the entire country. They regulate these technologies for the Province of Ontario and perhaps 1 or 2 others.

Each political jurisdiction (there are 13 of them, 10 provinces and 3 territories) has its own legislation that regulates in this area.

The legislation in effect in the jurisdiction where the material will be used speaks to what is required to be certified or not.

When a component is certified, it is issued a "Canadian Registration Number". The CRN may be issued for the whole country or a singular jurisdiction. It may be registered for the whole country if the component meets all of the various requirements of the whole country.

There are many engineering firms who can help you navigate the CRN registration process. You need to contact them. Without a valid issued CRN, a component is not legal in Canada no matter what other certification it may have.

As to installers, every jurisdiction has their own requirements for licenses and minimum credentials needed by an installer. You need to contact the regulator in the jurisdiction you are interested in.

The Chief B&PV inspector for one of those jurisdictions reports to me. If you need further information, send me a message via CR4.