In Ontario, all piping that conveys:

1) a fluid under pressure
2) steam
3) compressed air

needs to be TSSA compliant

For Vessels

ASME Boiler and Pressure Vessel Code, Section VIII
Division 1 Design to rules

For Piping

ASME B&PV Code B31.1 for power piping [i.e. compressed air and steam]
ASME B&PV Code B31.3 for other piping

Do you have pressure piping/vessels that need to be designed or registered?

Technical Standards and Safety Authority

Give us a Call: (519) 733 3122 for details