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).
INVISTA (CANADA) COMPANY
- Address:
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1400 COUNTY RD 2
MAITLAND, ON
Canada
K0E 1P0 - Products/Services:
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Pressure Relief Valve Repair (SHOP ONLY)
Status: Mon., Jun. 24, 2024
Number: QA-03318
Repair of ASME Section 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 Air and Liquid.
CSA-B51 Fittings
Status: Thu., Apr. 10, 2025
Number: QA-00532
Fabrication of welded and non-welded Category A, B and H type fittings only at the Above Location Only. In accordance with CSA Standard B51, Pressure Vessel and Pressure Piping Code.
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)
Status: Thu., Apr. 10, 2025
Number: QA-03787
Repair and alteration of boilers, pressure vessels, piping and Category A, B, D, E, F and H type fittings at the above location only in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.
Owner/User Self Inspection of Repairs
Status: Thu., Apr. 10, 2025
Number: QA-320
Repair of pressure retaining components only, with inspection by the owner/user at the above location only, in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and the Technical Standards and Safety Act, Ontario Regulation 220/01, Boilers and Pressure Vessels.
Power Piping Installation ASME B31.1 (SHOP ONLY)
Status: Thu., Apr. 10, 2025
Number: QA-00530
Fabrication and assembly of power piping at the above location only 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 ONLY)
Status: Thu., Apr. 10, 2025
Number: QA-00531
Fabrication and assembly of process piping at the above location only in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3 Process Piping.
Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)
Status: Thu., Apr. 10, 2025
Number: QA-03368
Fabrication and assembly of refrigeration piping at the above location only in accordance with CSA Standard B52, Mechanical Refrigeration Code and ASME B31.5 Refrigeration Piping.
Pressure Relief Valve Repair (SHOP ONLY)
Status: Sat., Aug. 31, 2024
Number: QA-265
Repair of ASME Section I and 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 Air and Liquid.
Process Piping Installation ASME B31.3 (SHOP ONLY)
Status: Thu., Jun. 8, 2023
Number: QA-01683
Fabrication, assembly and repair of process piping at the above location only in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and ASME B31.3 Process Piping.
Boiler & Pressure Vessel Repair/Alteration (SHOP ONLY)
Status: Thu., Jun. 8, 2023
Number: QA-01684
Repair and alteration of boilers, pressure vessels, piping and Category A, B, C, D, E and H type fittings at the above location only in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.
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