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).
ALL-WELD COMPANY LIMITED
- Address:
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14 & 49 PASSMORE AVE
SCARBOROUGH, ON
Canada
M1V 4T1 - Products/Services:
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ASME S-2-Section I Boiler Manufacture (SHOP & FIELD)
Status: 08-01-2025
Number: QA-00557
Manufacture and assembly of power boilers at the above location and field sites controlled by the above location in accordance with ASME Boiler and Pressure Vessel Code, Section I, and CSA Standard B51, Boiler, Pressure Vessel, and Pressure Piping Code.
ASME U-4-Sec. VIII, Div 1 Pressure Vessel Mfr. (SHOP & FIELD)
Status: 08-01-2025
Number: QA-81
Manufacture of pressure vessels at the above location and field sites controlled by the above location in accordance with ASME Boiler and Pressure Vessel Code, Section VIII, Division 1 and CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.
CSA-B51 Fittings
Status: 08-01-2025
Number: QA-05289
Fabrication of Welded and Non-Welded Category A, B, C, D, E, F and H type Fittings only at the Above Location Only. In accordance with CSA Standard B51 Boiler, Pressure Vessel and Pressure Piping Code.
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)
Status: 08-01-2025
Number: QA-01068
Repair and Alteration Organization of boilers, pressure vessels, piping and Category A, B, C, D, E, F and H type fittings at the above location and for repairs and alterations at field sites controlled by this location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Status: 08-01-2025
Number: QA-01066
Fabrication and assembly of power piping at the above location and fabrication, assembly and erection of power piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.1 Power Piping.
Process Piping Installation ASME B31.3 (SHOP & FIELD)
Status: 08-01-2025
Number: QA-01067
Fabrication and assembly of process piping at the above location and fabrication, assembly and erection of process piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3 Process Piping.
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