The Technical Standards and Safety Authority (TSSA) adopts standards and administers the policies, procedures and processes for the certification of welders and brazers regulated under the Technical Standards and Safety Act, 2000’s Ontario Regulation 220/01: Boilers and Pressure Vessels (BPVs). Businesses that repair/alter BPVs and install/repair associated piping systems are required to hold a Certificate of Authorization (COA) from TSSA or another Canadian jurisdiction. Companies with a National Board Certificate of Authorization (“R” stamp) are also acceptable for repairs/alterations of BPVs.
In the following directory, you can find a listing of businesses that hold a COA issued by TSSA. Please note that the information in this directory is updated periodically and may not reflect the most recent information available for each entry. If you have a question or concern regarding any of the information contained on this page, please contact customerservices@tssa.org or call 1-877-682-TSSA (8772).
Process Piping Installation ASME B31.3 (SHOP & FIELD)
Canada
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Canada
Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)
Canada
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)
Canada
Power Piping Installation ASME B31.1 (SHOP ONLY)
Canada
Process Piping Installation ASME B31.3 (SHOP ONLY)
Canada
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)
Canada
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)
Canada
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)
Canada
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Canada
Process Piping Installation ASME B31.3 (SHOP & FIELD)
Canada
Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)
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Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)
Canada
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Canada
Medical Gas Piping Installation CSA-Z7396.1 (SHOP & FIELD)
Canada
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Canada
Process Piping Installation ASME B31.3 (SHOP & FIELD)
Canada
CSA-B51 Fittings
Canada
Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)
Canada
ASME U-1-Mfr. of Sec. VIII, Div 1 Pressure Vessels (SHOP ONLY)
Canada
CSA-B51 Fittings
Canada
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)
Canada
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Canada
Process Piping Installation ASME B31.3 (SHOP & FIELD)
Canada
Medical Gas Piping Installation CSA-Z7396.1 (SHOP & FIELD)
Canada
Process Piping Installation ASME B31.3 (SHOP & FIELD)
Canada
Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)
Canada
ASME PP-2-Section I Boiler External Piping (SHOP & FIELD)
Canada
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Canada
Process Piping Installation ASME B31.3 (SHOP & FIELD)
Canada
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Canada
Process Piping Installation ASME B31.3 (SHOP ONLY)
Canada
Process Piping Installation ASME B31.3 (SHOP & FIELD)
Canada
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)
Canada
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Canada
Process Piping Installation ASME B31.3 (SHOP & FIELD)
Canada
Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)
Canada
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)
Canada
Medical Gas Piping Installation CSA-Z7396.1 (SHOP & FIELD)
Canada
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Canada
Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)
Canada
CSA-B51 Fittings
Canada
Refrigeration Piping Installation ASME B31.5 (FIELD ONLY)
Canada
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)
Canada
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Canada
Process Piping Installation ASME B31.3 (SHOP & FIELD)
Canada
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Canada