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).
BWXT CANADA LTD
- Address:
-
581 CORONATION BLVD
CAMBRIDGE, ON
Canada
N1R 3E9 - Products/Services:
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Vessels, Pumps, Valves, Piping & Containment (N with NA)
Status: 01-23-2025
Number: QA-184
Construction of Class 1, 1C, 2, 2C, 3, 3C & 4 vessels; Class 1, 2, & 3 piping systems; Class CS core support structures at the above location with supporting code activities as described in the Quality Assurance Manual at 695 Bishop Street North, Cambridge, Ontario, Canada N1R 2K9 and 1875 16th Avenue East Owen Sound, Ontario, Canada N4K 0A9 and providing services, including certification under this certificate, as described in the Quality Assurance Manual which are limited to stress analysis, design, machining, heat treatment, inspection, and testing at the above location and supply of nondestructive examination and auditing services at various locations. In accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants.
Parts, Appurtenances, Piping Sub’s & Tubular Prod’s (NPT with NA)
Status: 01-23-2025
Number: QA-00748
Fabrication of Class 1, 1C, 2, 2C, 3, 3C, & 4 parts, appurtenances, piping subassemblies, and tubular products; Class 1, 2, 3 & 4 welded and non-welded supports (Supports limited to the 1998 Edition, 1998 Addenda and earlier Editions and Addenda of the Code); With and without design responsibility; Supply of ferrous and nonferrous material; At the above location only; With supporting code activities as described in the Quality Assurance Manual at 695 Bishop Street North, Cambridge, Ontario, Canada N1R 2K9 and 1875 16th Avenue East Owen Sound, Ontario, Canada N4K 0A9; At CNSC licensed field sites including installation, controlled by the above location only. In accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants
Shop Assembly (NA)
Status: 01-23-2025
Number: QA-00747
Class 1, 1C, 2, 2C, 3, 3C & 4 Shop Assembly; At the above location only; With supporting code activities as described in the Quality Assurance Manual at 695 Bishop Street North, Cambridge, Ontario, Canada N1R 2K9 and 1875 16th Avenue East Owen Sound, Ontario, Canada N4K 0A9; At CNSC licensed field sites including installation, controlled by the above location only. In accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants
Supports (NS) (Can be added to N/NPT/NA)
Status: 01-23-2025
Number: QA-00781
Fabrication of Class 1, 2, 3 & 4 welded and non-welded supports; With and without design responsibility; At the above location only: With supporting code activities as described in the Quality Assurance Manual at 695 Bishop Street North, Cambridge, Ontario, Canada N1R 2K9 and 1875 16th Avenue East Owen Sound, Ontario, Canada N4K 0A9; In accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants
CSA-N285.0 Nuclear Fittings (SHOP ONLY)
Status: 01-23-2025
Number: QA-00784
Fabrication of Class 1, 1C, 2, 2C, 3, 3C & 4 category A, B, D, E & H type fittings; At the above location only; With supporting code activities as described in the Quality Assurance Manual at 695 Bishop Street North, Cambridge, Ontario, Canada N1R 2K9 and 1875 16th Avenue East Owen Sound, Ontario, Canada N4K 0A9. In accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants
CSA-N285.0 Nuclear Fitting Repair or Modification (SHOP & FIELD)
Status: 01-23-2025
Number: QA-03264
Field Repairs, Modifications or Replacements of Class 1, 1C, 2, 2C, 3, 3C and 4 nuclear items at CNSC licensed field sites controlled by the above location only; With supporting code activities as described in the Quality Assurance Manual at 695 Bishop Street North, Cambridge, Ontario, Canada N1R 2K9 and 1875 16th Avenue East Owen Sound, Ontario, Canada N4K 0A9. In accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants
ASME U-4-Sec. VIII, Div 1 Pressure Vessel Mfr. (SHOP & FIELD)
Status: 10-26-2025
Number: QA-00709
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.
Process Piping Installation ASME B31.3 (SHOP & FIELD)
Status: 10-26-2025
Number: QA-00707
Fabrication, assembly, and repair of process piping at the above location and fabrication, assembly, erection, and repair 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.
ASME U2-3-Sec. VIII, Div 2 Pressure Vessel Mfr. (SHOP & FIELD)
Status: 10-26-2025
Number: QA-00710
Manufacture of class 1 and class 2 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 2 and CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)
Status: 10-26-2025
Number: QA-00712
Repair and alteration of boilers, pressure vessels, piping, and fittings at the above location and for repairs and alterations at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.
CSA-B51 Fittings
Status: 10-26-2025
Number: QA-03265
Fabrication of Welded and Non-Welded Category A, B, C, D, E, F, & H type fittings at the above location only. In accordance with CSA Standard B51 Boiler, Pressure Vessel and Pressure Piping Code.
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Status: 10-26-2025
Number: QA-00706
Fabrication, assembly, and repair of power piping at the above location and fabrication, assembly, erection, and repair 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.
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