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).”
CSA-B51 Fittings, Process Piping Installation ASME B31.3 (SHOP ONLY), Power Piping Installation ASME B31.1 (SHOP ONLY)
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Power Piping Installation ASME B31.1 (SHOP & FIELD), Process Piping Installation ASME B31.3 (SHOP & FIELD)
Power Piping Installation ASME B31.1 (SHOP & FIELD), Process Piping Installation ASME B31.3 (SHOP & FIELD), Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD), Medical Gas Piping Installation CSA-Z7396.1 (SHOP & FIELD)
Process Piping Installation ASME B31.3 (FIELD ONLY), ASME PP-3-Section I Boiler External Piping (FIELD ONLY), Refrigeration Piping Installation ASME B31.5 (FIELD ONLY), ASME U-6-Sec. VIII, Div 1 Pressure Vessel Mfr. (FIELD ONLY), ASME A-1-Section I Boiler Assembly (FIELD ONLY), ASME H-6-Section IV Boiler Manufacture (FIELD ONLY), Power Piping Installation ASME B31.1 (FIELD ONLY), Boilers & Pressure Vessels Repair/Alteration (FIELD ONLY)
Process Piping Installation ASME B31.3 (SHOP & FIELD), Medical Gas Piping Installation CSA-Z7396.1 (SHOP & FIELD), Power Piping Installation ASME B31.1 (SHOP & FIELD)
Power Piping Installation ASME B31.1 (SHOP & FIELD), Process Piping Installation ASME B31.3 (SHOP & FIELD), Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD), Power Piping Installation ASME B31.1 (SHOP & FIELD), Process Piping Installation ASME B31.3 (SHOP & FIELD), CSA-B51 Fittings
ASME PP-1-Section I Boiler External Piping (SHOP ONLY), Power Piping Installation ASME B31.1 (SHOP ONLY), Process Piping Installation ASME B31.3 (SHOP ONLY)
Power Piping Installation ASME B31.1 (SHOP & FIELD), Process Piping Installation ASME B31.3 (SHOP & FIELD), CSA-B51 Fittings
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD), Process Piping Installation ASME B31.3 (SHOP & FIELD), Power Piping Installation ASME B31.1 (SHOP & FIELD)
CSA-B51 Fittings, Power Piping Installation ASME B31.1 (SHOP & FIELD), Process Piping Installation ASME B31.3 (SHOP & FIELD), Medical Gas Piping Installation CSA-Z7396.1 (SHOP & FIELD), Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD), Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD), ASME PP-2-Section I Boiler External Piping (SHOP & FIELD)
CSA-B51 Fittings, Power Piping Installation ASME B31.1 (SHOP & FIELD), ASME UM-1-Sec. VIII, Div 1 Miniature Pressure Vessels (SHOP ONLY), Process Piping Installation ASME B31.3 (SHOP & FIELD), Boiler & Pressure Vessel Repair/Alteration (SHOP ONLY), ASME U-1-Mfr. of Sec. VIII, Div 1 Pressure Vessels (SHOP ONLY)
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD), Power Piping Installation ASME B31.1 (SHOP & FIELD), Process Piping Installation ASME B31.3 (SHOP & FIELD), Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)