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, 2025 (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 CRNs are to be submitted along with the mandatory supporting documents via the TSSA Client Portal.
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):
- Fitting Scope
- Fitting (Nuclear)
- Drawing
- Declaration of Conformity
- QA Program Certificate
- Cover Letter
- 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.
Guidelines
View the applicable registration guidelines for the following devices:
Non-nuclear BPV:
Used or altered BPV
Non-nuclear fittings
Nuclear pressure retaining systems and components
Piping systems
Guidelines for Registration of Medical Gas Piping Systems (pdf)
You may also view TSSA bulletins on the following:
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).