TSSA Portals

Certificate of Authorization FAQs

Navigate this section

A Certificate of Authorization (COA) issued by TSSA allows companies from Ontario and around the world to manufacture pressure-retaining items for use in Ontario. Here are some frequently asked questions about obtaining a COA from TSSA.

Here are frequently asked questions about obtaining a COA.

  • Is my company required to obtain current applicable Code books for my upcoming audit/joint review?

    Yes, all non-nuclear quality programs must be maintained to applicable Codes and Standards at all times.

    According to the TSSA Boilers and Pressure Vessels Safety Program Code Adoption Document Amendment (pdf), the latest edition of the applicable standards takes effect six months after the publication date of the applicable standard or Code. For questions or clarifications, please contact your Auditor.

    Nuclear quality programs allow the applicant to select a Code effective date that may be earlier than the latest edition of the Code or Standard. For questions or clarifications, please contact your Survey Team Lead.

  • Do I need to have a welding or brazing procedure registered before I can obtain a Certificate of Authorization?

    No. However, your Quality Program will be limited to mechanical joint installation only until your welding or brazing procedures have been registered with TSSA, and a welder or brazer has been qualified.

    To learn more, visit the Welding or Brazing Procedure & Personnel Qualification.

  • Do I have to prepare a demonstration item for my non-nuclear audit?

    The answer varies depending on what kind of work you are doing. 

    For manufacturers of piping and/or repairs and alterations to boilers or pressure vessels: 

    If your Company has performed Code work in the past three years, you are not required to prepare a demonstration item for the Audit. If your Company has not performed Code work in the past three years or you are a new applicant, your company is required to prepare a demonstration item. Please refer to the Implementation Guideline for Piping System Fabricators, Installers, Repairers and Alterers (pdf). 

    For manufacturers of boilers or pressure vessels: 

    Yes, your Company is required to prepare a demonstration item. Please refer to the Implementation Guideline for Boiler or Pressure Vessel Manufacturers (pdf). For all other COA holders: Please reach out to your Auditor or bpvcustomerservice@tssa.org for inquiries.