Register a Design

Owners, users, agents, manufacturers, and contractors of boilers or pressurized equipment are responsible for registering equipment designs with the Technical Standards and Safety Authority (TSSA) to obtain a Canadian Registration Number (CRN).        

Before pressurized equipment is registered, its design must undergo an engineering review to ensure it complies with the Technical Standards and Safety Act, 2000, Ontario Regulation 220/01: Boilers & Pressure Vessels, and adopted safety codes and standards.

Welding and brazing procedures must also be registered. See Welding/Brazing Procedure Registration & Personnel Qualification.       

Design registration fees for Ontario-only services

Please refer to the BPV Fee Schedule - Effective May 1, 2024 (pdf) for engineering service fees.        

All fees are payable in Canadian funds and are due upon receipt. Prepayment by credit card is encouraged. Other prepayment options include a cheque, money order, or wire transfer which may take longer to process.

For questions regarding prepayment, contact the Customer Contact Centre toll-free at 1-877-682-8772 or email customerservices@tssa.org.

National Service fees

To register a design in multiple jurisdictions across Canada, see our National Service page. 

How to submit an application

All requests for non-nuclear CRNs are to be submitted along with the mandatory supporting documents via the TSSA Client Portal. TSSA no longer accepts non-nuclear design registrations submitted via the Service Prepayment Portal or email.     

The table below outlines the types of BPV applications and the respective channels to which they should be submitted: 

Mandatory Supporting Documents for BPV Design Registrations

All design registrations submitted after February 1, 2025, without the mandatory supporting documents will not be processed. All fees are non-refundable. Submitting mandatory supporting documents along with the application is critical to ensure the timely processing of design registrations. Below is a list of mandatory supporting documents for BPV design registrations:

Boiler (Conventional) 

- Drawing

- Calculations

Fitting (Conventional)

- Drawing

- Calculations

- Declaration of Conformity

- QA Program Certificate

- Cover letter  (per Appendix F, page 10 of the Guidelines for the Registration of Non-Nuclear Fittings in Ontario):

• Design registration application form
• Statutory declaration form
• Scope of registration (see example in Appendix G, page 11 of the Guidelines for the Registration of Non-Nuclear Fittings in Ontario)
• Design registration drawings
• Design registration calculation or documents for design validation (e.g. Design calculation/ FEA/ Proof test reports)
• Product catalog or part of catalog (if Applicable)
• Manufacturer quality control certificate for each manufacturing site listed
• List of manufacturing locations
• Other provinces proof of registration (if any)

- Fitting Scope

Fitting (Nuclear)

- Drawing

- Declaration of Conformity

- QA Program Certificate 

- Cover Letter (per Appendix F, page 10 of the Guidelines for the Registration of Non-Nuclear Fittings in Ontario):

• Design registration application form
• Statutory declaration form
• Scope of registration (see example in Appendix G, page 11 of the Guidelines for the Registration of Non-Nuclear Fittings in Ontario)
• Design registration drawings
• Design registration calculation or documents for design validation (e.g. Design calculation/ FEA/ Proof test reports)
• Product catalog or part of catalog (if applicable)
• Manufacturer quality control certificate for each manufacturing site listed
• List of manufacturing locations
• Other Provinces Proof of Registration (if any)

- Design specification 

- Design report

Piping (Conventional P-number)

- Drawing

- Piping specification

Piping (Conventional P-Standard)

- Drawing

- Piping specification

Piping (Nuclear)

- Design specification

- Design report

- System flowsheet

- System classification list 

- Overpressure protection report

Welding Brazing

- Welders/Brazers ticket

- WPS/BPS

- PQR & Lab test reports

Pressure Vessel (Conventional)

- Drawing

- Calculation

- QA Program Certificate 

Pressure Vessel (Nuclear)

- Drawing

- QA Program Certificate

- Design specification

- Design report

Pumps (Nuclear)

- Drawing 

- Design specification

- Design report

Standard Supports (Nuclear)

- Drawing

- Design report

Support (Nuclear)

- Drawing

- Design specification

- Design report

Used/Altered Vessel

- Drawing

- Calculation

- QA Program Certificate

Heat Exchangers (Conventional)

- Drawing

- Calculation

- QA Program Certificate

Variance

Please provide the applicable documents to support the variance application.

How to Submit a Nuclear or Transport Canada Registration Number (TCRN) Application

Step 1

Download and complete the fillable PDF form listed below. If the application is for urgent repairs in a nuclear facility, you will also need to download and complete the Expedited Services form.       

• Fitting, Piping, Pressure Vessel, Welding Application for a CRN - Nuclear (pdf)

• Application for the Provision of Expedited Engineering Services (pdf)    

Step 2

Complete the forms listed above and gather the required supporting documents. Please refer to the applicable guidelines for assistance as they outline the documents that need to be submitted as part of the application.        

Step 3

Email your completed application form(s) and all supporting documents to bpv_registrations@tssa.org.

Step 4

TSSA will acknowledge receipt of the application package via email and assign an engineer to review your submission.

Step 5

If the design registration application is approved, TSSA will send the applicant a registration package along with a CRN. Processing times are not guaranteed and are dependent on the quality of the submissions. If the application is incomplete, TSSA will place the application on hold and request that the applicant provide the required information. This will delay the application process. Applications on hold for more than 90 days will be cancelled by TSSA.

Please refer to the applicable guidelines below outlining the documents that need to be submitted as part of the application. 

Guidelines

View the applicable registration guidelines for the following devices:        

• Non-nuclear BPV:

  • Boilers & Pressure Vessels Manufactured in Canada For Use in Ontario (pdf)

  • Boilers & Pressure Vessels Manufactured in the USA For Use in Ontario (pdf)

  • Boilers & Pressure Vessels Manufactured Outside of Canada or the USA For Use in Ontario (pdf)

• Used or altered BPV

  • Guidelines for Design Approval of Used/Altered Boilers or Pressure Vessels (pdf)

• Non-nuclear fittings

  • Guidelines for the Registration of Non-Nuclear Fittings in Ontario (pdf)

• Nuclear pressure retaining systems and components

  • Design Registration Guidelines for Nuclear Pressure Retaining Systems & Components (pdf)

• Piping systems 

• Guidelines for Registration of Piping (pdf)

• Guidelines for Registration of Medical Gas Piping Systems (pdf)

• Piping Systems Installation & Test Data Report (pdf)        

You may also view TSSA bulletins on the following:

• Safety Bulletin SB00-7: Guide for the Scope of Services Requiring Registration and Inspection of Pressure Piping Systems for Installation in Ontario (pdf)

• Modifications/Alterations to Registered Conventional Piping Systems (pdf)

• Registration Guidelines for Welding and Brazing Procedures in Ontario (pdf) 

If you need to request an ownership name change on existing welding and brazing procedures currently registered with TSSA, please see the Guideline for Welding/Brazing Procedures - Ownership Name Change (pdf).