Boiler & Pressure Vessel Owners

Every owner and operator of a boiler, pressure vessel (BPV), fitting or piping system must operate their BPVs and associated equipment safely and keep them in safe working condition per Ontario Regulation 220/01: Boilers and Pressure Vessels, Section 3(3)   

Here’s what you need to do if you are a BPV equipment owner in Ontario: 

Hire A Certified Contractor

Businesses that install, repair or alter BPVs and associated piping systems are required to hold a Certificate of Authorization (COA) from TSSA or another Canadian jurisdiction. A COA allows companies from Ontario and around the world to manufacture pressure-retaining items for use in Ontario. If the pressure-retaining item that your company plans to manufacture for use in Ontario is not exempt from Ontario Regulation 220/01: Boilers and Pressure Vessels, your company is required to obtain a COA before manufacturing the item.

To access the list of companies that hold a COA, please click on the link Find a Certificate of Authorization Holder.

Register BPV Equipment:    

Owners and operators of boilers, pressure vessels and piping systems are responsible for ensuring that they use equipment with a Canadian Registration Number (CRN) for Ontario. 

Boilers & Pressure Vessels: Owners and operators need to ensure the BPV they purchase is registered with a CRN. They must not buy a non-registered BPV and try to get it registered. 

Piping: As piping systems are specific to operational needs, piping will need to be manufactured to meet client specifications. For information on how to register your piping system, please follow the applicable guidelines below and submit the required documents:

To find out if your boiler or pressure vessel equipment is regulated, see Ontario Regulation 220/01: Boilers and Pressure Vessels, Section 2(2)  

Book a First Inspection to Get a Certificate of Inspection (COI) 

Individuals and businesses who own BPVs regulated under Ontario Regulation 220/01: Boilers and Pressure Vessels must have a valid Certificate of Inspection (COI) for each boiler or pressure vessel they own or operate. A COI is required to operate a BPV device legally.     

Owners and operators of a BPV device must arrange a first inspection before operation. To obtain a COI, a TSSA inspector must conduct a first inspection. TSSA will issue a COI to the owner of a BPV that has passed a first inspection. For more information on booking a first inspection, visit Schedule an Inspection. 

Undergo Periodic Inspections to Renew COI   

The BPV device that you own or operate must be inspected for the life of the device to ensure compliance with existing safety standards. Your device must pass a periodic inspection before you can renew your COI which has a validity period of 12, 24 or 36 months:

Table 1 Periodic Inspection Intervals

          Type of Boiler or Pressure Vessel       Frequency of Inspection   
A                      Deaerator             1 Year
B                 High Pressure Boiler             1 Year
C                 Low Pressure Boiler             2 Years
D                  Pressure Vessel             3 Years 
EPressure Vessel Fitted with Quick-Opening Door             1 Year

You can also check the expiry date on your current COI. 

For additional notes on periodic inspections, please refer to section 5.2 of the BPV Safety Program Code Adoption Document, Ref No.: BPV-20-01 R1 (pdf).

If your company has dedicated boiler and machinery insurance coverage for your regulated device(s), you need to arrange for an inspection with your insurance company 60 days before the expiry date published on the existing COI.

If your company does not have dedicated boiler and machinery insurance coverage for your regulated device(s), request a periodic inspection from TSSA at least 60 days before your COI expires by completing the BPV Inspection Request Form (pdf) and providing details for the “Periodic” inspection field. Submit the completed form to

For more information on scheduling a periodic inspection to renew a COI, visit Boilers & Pressure Vessels Certificate of Inspection.

Remove BPV Equipment

BPV owners and operators who want to remove a BPV from operation should use the Permanent Removal of Boilers and Pressure Vessels from Operation or Use form to notify TSSA about removing a BPV from service at the current plant location. Please refer to page two of the form for instructions.    

Submit the completed form to TSSA via email to or mail it to the address below: 

Technical Standards and Safety Authority    
Boilers and Pressure Vessels Safety Program    
345 Carlingview Drive     
Toronto, Ontario     
M9W 6N9

All licensees of TSSA are responsible for keeping their contact information up to date. Licensees must also update information that is pertinent to the authorization of their device. Please see Update Your Information and Change of Ownership for details on how to update changes to business information or ownership.   

Resources on BPV COI Portal for Owners