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).
ONTARIO POWER GENERATION, DARLINGTON NUCLEAR DIVISION
- Address:
-
HOLT ROAD SOUTH
BOWMANVILLE, ON
Canada
L1C 3W2 - Products/Services:
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Fitting Manufacturers
Status: 4/15/2023
Number: QA 00799
Fabrication of Welded and Non-Welded Category A, B & H type Fittings only at the above location only. In accordance with CSA Standard B51-09, Update 1, Boiler, Pressure Vessel and Pressure Piping Code.
Nuclear Vessels, Pumps, Valves and Piping Systems
Status: 4/15/2023
Number: QA 00846
Construction of Class 1, 1C, 2, 2C, 3 and 3C Piping Systems; Shop Assembly; as a Material Organization Supplying Ferrous and Nonferrous Material. At the Above Location Only. In accordance with CSA Standard N285.0-08 Update 1 and 2, with Annex M General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants and ASME Code Section III 2010 Edition, 2011 Addenda.
Nuclear Parts, Appurtenances, Piping Subassemblies, Containments and Tubular Products
Status: 4/15/2023
Number: QA 00847
Construction of Class 1, 1C, 2, 2C, 3, 3C & 4 Parts and Piping Subassemblies; at the Above Location Only. In accordance with CSA Standard N285.0-08 Update 1 & 2, with Annex M General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants and ASME Code Section III 2010 Edition, 2011 Addenda.
Nuclear Supports
Status: 4/15/2023
Number: QA 00848
Construction of Class 1, 1C, 2, 2C, 3, 3C & 4 Welded and Non-welded Supports; With and Without Design Responsibility at the Above Location Only. In accordance with CSA Standard N285.0-08 Update 1 & 2, with Annex M General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants and ASME Code Section III 2010 Edition, 2011 Addenda.
Nuclear Fittings
Status: 4/15/2023
Number: QA 00849
Construction of Class 1, 1C, 2, 2C, 3, 3C & 4 Welded and Non-welded Category A, B & H type Fittings at the Above Location Only. In accordance with CSA Standard N285.0-08 Update 1 & 2, with Annex M General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants and ASME Code Section III 2010 Edition, 2011 Addenda.
Nuclear Repair, Modification or Replacement
Status: 4/15/2023
Number: QA 04145
Repair, Modification or Replacements of Class 1, 1C, 2, 2C, 3, 3C and 4 Nuclear Items at the Above Location Only. In accordance with CSA Standard N285.0-08 Update 1 and 2, with Annex M General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants and ASME Code Section III 2010 Edition, 2011 Addenda.
Power Piping B31.1
Status: 4/15/2023
Number: QA 00795
Fabrication, assembly and installation of power piping at the above location only. In accordance with CSA Standard B51-09, Update 1, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.1-2010 Power Piping.
Nuclear Pressure Relief Valve Repair
Status: 8/31/2022
Number: QA 02021
Repair of nuclear Class 1, 2 & 3 pressure relief valves using original equipment manufactured parts at the above location only in accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants. Special processes are limited to Machining. Test media shall include Steam, Air/Gas and Liquid.
Process Piping B31.3
Status: 4/15/2023
Number: QA 00796
Fabrication, assembly and installation of process piping at the above location only. In accordance with CSA Standard B51-09, Update 1, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3-2010 Process Piping.
Pressure Relief Valve Repair Organizations
Status: 8/31/2022
Number: QA 00656
Repair of ASME Section I, IV, & VIII, Div.1, pressure relief valves using original equipment manufactured parts at the above location only in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code. Special processes are limited to Machining. Test media shall include Steam, Air/Gas and Liquid.
Refrigeration Piping B31.5
Status: 4/15/2023
Number: QA 00797
Fabrication, assembly and installation of refrigeration piping at the above location only. In accordance with CSA Standard B52-05, Mechanical Refrigeration Code and ASME B31.5-2010 Refrigeration Piping.
Repair and Alteration Organizations
Status: 4/15/2023
Number: QA 00798
Repair and alteration of boilers, pressure vessels, piping and Category A, B, C, D, E, F & H type fittings at the above location only. In accordance with CSA Standard B51-09, Update 1, Boiler, Pressure Vessel and Pressure Piping Code.
Contact(s)