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).
CIMS LIMITED PARTNERSHIP
- Address:
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466 POLYMOORE DR
CORUNNA, ON
Canada
N0N 1G0 - Products/Services:
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ASME S-2-Section I Boiler Manufacture (SHOP & FIELD)
Status: 08-10-2025
Number: QA-01915
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: 08-10-2025
Number: QA-278
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.
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)
Status: 08-10-2025
Number: QA-00693
Repair and Alteration Organization of boilers, pressure vessels, piping and 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.
Hot Tapping and Line Stopping
Status: 08-10-2025
Number: QA-02623
Hot Tap and Line Stopping of pressure equipment at field sites controlled by 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: 08-10-2025
Number: QA-00692
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: 08-10-2025
Number: QA-00694
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.
Vessels, Pumps, Valves, Piping & Containment (N with NA)
Status: 11-07-2024
Number: QA-05833
Construction of Class 1, 1C, 2, 2C, 3, 3C & 4 vessels and piping systems; Class 1, 1C, 2, 2C & 3, 3C & 4 Shop Assembly; Supply of ferrous and nonferrous material; At the above location and 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.
Parts, Appurtenances, Piping Sub’s & Tubular Prod’s (NPT with NA)
Status: 11-07-2024
Number: QA-05834
Fabrication of Class 1, 1C, 2, 2C, 3, 3C, & 4 parts, appurtenances and piping subassemblies; Welded and non-welded supports; With and without design responsibility; At the above location and 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.
CSA-N285.0 Nuclear Fittings (SHOP ONLY)
Status: 11-07-2024
Number: QA-05836
Fabrication of Class 1, 1C, 2, 2C, 3, 3C & 4 category H type fittings 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.
CSA-N285.0 Nuclear Item Repair, Modification or Replacement (FIELD ONLY)
Status: 11-07-2024
Number: QA-05835
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. In accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants.
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