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Find a Certificate of Authorized Holder

Find a Certificate of Authorization Holder

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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).

E.S. FOX LTD

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Address:
1201 EGERTER RD
PORT ROBINSON, ON
Canada
L0S 1K0
Products/Services:
CSA-B51 Fittings
Status: 01-07-2023
Number: QA-01208
Fabrication of welded and non-welded Category A, B, C, E and H type fittings, at the above location and field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.
Supports (NS) (Can be added to N/NPT/NA)
Status: 01-07-2023
Number: QA-454
Fabrication of Class 1, 2, 3 and 4 Welded and Non-welded Supports; With and Without Design Responsibility; 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.
Material Organization (MO) (Can be added to N/NPT)
Status: 01-07-2023
Number: QA-01909
Material organization manufacturing and supplying ferrous and non-ferrous material at the above location only including; welding material; qualification of nonaccredited material organizations; utilization of unqualified source material; approval and control of suppliers; shipment of material from qualified material organizations other than the qualified accredited material organization; at the above location only with receiving, shipping, storage, packaging, preservation and preparation of items from Warehouse E, 9127 Montrose Road, Niagara Falls, Ontario, Canada L2E 7J9 and 984 Farewell Street South, Oshawa, Ontario, Canada L1H 6N6 and Millarton Warehouse, 5568 Hwy 9, RR 4, Kincardine, Ontario, N2Z 2X5, In accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power plants.
Hot Tapping and Line Stopping
Status: 01-07-2023
Number: QA-02044
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.
ASME S-2-Section I Boiler Manufacture (SHOP & FIELD)
Status: 01-07-2023
Number: QA-03277
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 U2-3-Sec. VIII, Div 2 Pressure Vessel Mfr. (SHOP & FIELD)
Status: 01-07-2023
Number: QA-03285
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 2 and CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code.
Process Piping Installation ASME B31.3 (SHOP & FIELD)
Status: 01-07-2023
Number: QA-00959
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.
Shop Assembly (NA)
Status: 01-07-2023
Number: QA-04286
Class 1, 2, 3 and 4 Shop Assembly; 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.
Refrigeration Piping Installation ASME B31.5 (SHOP AND FIELD)
Status: 01-07-2023
Number: QA-00960
Fabrication and assembly of refrigeration piping at the above location and fabrication, assembly and erection of refrigeration piping at field sites controlled by the above location in accordance with CSA Standard B52, Mechanical Refrigeration Code and ASME B31.5 Refrigeration Piping.
Parts, Appurtenances, Piping Sub’s & Tubular Prod’s (NPT with NA)
Status: 01-07-2023
Number: QA-06154
Fabrication of Class 1, 2, 3,& 4 Parts, Appurtenances and Piping Subassemblies; With & Without Design Responsibility; At the Shop Locations (1201 Egerter Road, Port Robinson, Ontario, L0S 1K0 & 984 Farewell Street South, Unit 1, Oshawa, Ontario, L1H 6N6) and 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.
Medical Gas Piping Installation CSA-Z7396.1 (SHOP & FIELD)
Status: 01-07-2023
Number: QA-00961
Fabrication and assembly of nonflammable medical gas piping at the above location and fabrication, assembly and erection of nonflammable medical gas piping at field sites controlled by the above location in accordance with CSA Standard B51, Boiler, Pressure Vessel and Pressure Piping Code and CSA-Z7396.1 Nonflammable Medical Gas Pipeline Systems.
Vessels, Pumps, Valves, Piping & Containment (N with NA)
Status: 01-07-2023
Number: QA-259
Construction of Class 1, 2, 3 and 4 Vessels, Piping Systems; Class 1, 2 and 3 Shop Assembly; Supports and Material Supply at the above location and field sites licensed by CNSC, controlled by this location in accordance with CSA Standard N285.0, General Requirements for Pressure Retaining Systems and Components in CANDU Nuclear Power Plants.
Boiler & Pressure Vessel Repair/Alteration (SHOP & FIELD)
Status: 01-07-2023
Number: QA-00962
Repair and alteration 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.
ASME U-1-Mfr. of Sec. VIII, Div 1 Pressure Vessels (SHOP ONLY)
Status: 01-07-2023
Number: QA-367
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.
Power Piping Installation ASME B31.1 (SHOP & FIELD)
Status: 01-07-2023
Number: QA-443
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.
CSA-N285.0 Nuclear Fittings (SHOP ONLY)
Status: 01-07-2023
Number: QA-04287
Fabrication of Class 1, 2 and 3 welded and non-welded Category A, B, E and H type fittings only 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 Fitting Repair or Modification (SHOP & FIELD)
Status: 01-07-2023
Number: QA-04288
Repair or Modification of Class 1, 2 and 3 welded and non-welded Category A, B, E and H type fittings at the above location and field sites licensed by CNSC, controlled by the above location only in accordance with CSA 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: 01-07-2023
Number: QA-04289
Field Repairs, Modifications or Replacements of Class 1, 1C, 2, 2C, 3, 3C and 4 nuclear items at field sites licensed by CNSC, 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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