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Is Pressure Equipment in Ontario SAFE? PDF Print E-mail


The Technical Standards and Safety Association (TSSA) and the pressure equipment industry work very hard to ensure the safest equipment for industrial and commercial use. Ontario’s safety laws for pressure equipment are among the most effective in North America. There are several safeguards in place for the life cycle of equipment and plants covering design, fabrication, installation and operation. Anyone manufacturing, installing or repairing as well as owning or operating equipment have responsibilities to ensure these safeguards are met.


Do you know what your obligations are as an owner or user of industrial and commercial pressure equipment in Ontario?


Ontario’s Boilers and Pressure Vessels Regulation (Ontario Regulation #220/01)  and Operating Engineers Regulation (Ontario Regulation #219/01) place responsibilities on owners and users of pressure equipment to ensure the equipment is maintained in a safe working condition and operated safely. This means successfully completing all requirements for the life cycle of the equipment for design, fabrication, installation and operation.


Who is responsible at TSSA for pressure equipment?

  • Staff of TSSA’s Boilers and Pressure Vessels / Operating Engineers Safety program is responsible for industrial and commercial pressure equipment in Ontario in accordance with the Ontario Boilers and Pressure Vessels Regulation and Operating Engineer’s Regulation.


  • Owners, users, their designated agents, manufacturers and contractors are responsible for registering designs of pressure equipment with TSSA.
  • TSSA conducts an independent design review for code compliance.
  • Registration numbers are issued by TSSA for accepted designs.
  • The boiler, pressure vessel, fitting and piping designs are required to be registered before fabrication or installation.
  • TSSA also provides an optional service for registering designs or weld procedures in other provinces and territories in Canada.

Fabrication and Installation

  • Owners, users, manufacturers and contractors are responsible for contacting TSSA prior to fabrication or installation to arrange inspections.
  • For new equipment, we inspect boilers and pressure vessels during fabrication at authorized facilities.
  • TSSA also inspects piping installations during construction.
  • Owners, users or their representatives are responsible for purchasing equipment fabricated by authorized manufacturers.
  • TSSA reviews and audits quality systems of manufacturers of pressure equipment and contractors who construct piping systems.
  • Authorization certificates are issued by TSSA to manufacturers, repair organizations and piping contractors and piping contractors successfully completing the quality system audit.

Welding and Brazing Procedures and Welders/Brazers

  • Owners, users, their designated agents, subcontractors, fabricators and manufacturers are responsible for using registered weld and brazing procedures and qualified welders/brazers.
  • Weld and brazing procedures are reviewed by TSSA for compliance with codes and standards.
  • Registration numbers are issued for accepted weld and brazing procedures.
  • TSSA tests welders and brazers, using weld and brazing procedures registered with TSSA by employers or training institutions.
  • Certificates are issued to welders and brazers who have successfully completed the tests.
  • Contact your local inspector or TSSA’s office to get your welders and brazers tested.


  • Owners and users are responsible for ensuring equipment has valid certificates of inspection for operation and have the appropriately qualified staff to operate equipment.
  • TSSA inspects uninsured boilers and pressure vessels at specified intervals. Note: For insured equipment, contact your insurance company.
  • TSSA conducts boilers and pressure vessel repair inspections.
  • TSSA carries out all boiler and pressure vessel alteration inspections.
  • TSSA registers and issues certificates to operating plants in Ontario.
  • Plants are registered according to equipment capacity,.
  • TSSA conducts periodic inspections of operating plants.

Operating Engineers / Operators

  • TSSA administers and invigilates examinations for Operating Engineers, Compressor Operators and Refrigeration Operators.
  • Certificates are issued upon successful completion of examinations and practical experience.
  • Certicates of Qualification issued to Operating Engineers by TSSA permit movement to other jurisdictions who are members of the Standardization of Power Engineers Examination Committee (SOPEEC).
  • Course materials are available at TSSA, please contact TSSA’s office.

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