Compliance and safety news for the propane industry

June 2024 

Ensuring safe propane cylinder filling: Understanding the limits of overfill prevention devices

Filling attendants sometimes misinterpret the purpose of the overfill prevention device (OPD) valve and mistakenly think that it is an acceptable filling method. It is not.  

When filling a propane cylinder, the filling attendant ‘shall either’ fill by the weight method (using a scale) or fill by the volume method (using the fixed liquid level gauge also known as the spit valve). 


  • Serve as a secondary means of preventing overfills in propane vapour cylinders of 40 pounds or less, acting as a safeguard if errors occur during the filling process. 
  • Are NOT equivalent to an Automatic Stop-Fill Valve in an ASME propane tank.  

Proper understanding and adherence to correct filling procedures are crucial for ensuring safety and preventing overfilling in propane cylinders.  

Regulatory Updates

WIN! Small cylinders to be included in exchange cage programs

Last week, the B149.2 committee accepted the CPA’s change request to allow exchange cage programs to include the exchange of smaller cylinders such as 2lb refillables. Current requirements only allow 20lb cylinders to be in an exchange cage without vehicle protection at an exchange facility. This revision could help replace 1lb non-refillable cylinders that provinces have identified as difficult to dispose of by allowing the exchange in the same manner as 20lb options.

The revision must still pass through public review before it is published in the next revision in 2030.

WIN! Dispenser operations will be able to decide to fill based solely on cylinder expiry

The B149.2 Committee has accepted the CPA’s request for changes to cylinder filling and pressure relief valve replacement. These changes will allow a dispenser operator to rely solely on the cylinder’s expiration date while ensuring that the requalifier is responsible for replacing the PRV within the 10-year requirement.

Currently, Transport Canada requires the dispenser operator to verify both the cylinder and PRV dates, which can cause ambiguity due to existing PRV marking practices. Although these changes won’t take effect until the next code cycle in 2030, following public review, the CPA plans to request an equivalency. This request aims for Transport Canada to adopt the change in advance through their equivalency program.

WIN! Exemptions to valve closures will help ensure safety of bulk truck operators

Changes to B620 Code mean that some valves on bulk trucks will be allowed to remain open during transport. The CPA requested a change to the clause requiring all valves to be closed during transport so that any valve that requires the vehicle operator to crawl under the vehicle to close the valve as well as gauging valves and liquid level devices will be allowed to remain open and are exempt from the requirements. All other valves that do not interfere with hydrostatic relief are still required to be closed during transport.

This change will take effect upon acceptance of the 2025 code revision; however, the CPA will be pursuing an equivalency from Transport Canada to allow a more immediate adoption of this allowance until the code can be adopted.

Propane on-road vehicle maintenance facilities code open for review: Deadline July 6

The next edition draft of CSA B401.2 – Propane on-road vehicle maintenance facilities code is currently open for Public Review until July 6, 2024. Link to the CSA Public Review site to provide your comments.  

CSA B401.2 applies to the portions of a motor vehicle maintenance facility where propane-fuelled on-road vehicles are maintained, repaired, or stored during maintenance or repair, including ancillary areas and systems.   

Comments and proposals must be submitted directly within the CSA Public Review systems and remember to provide a rationale for the proposed change. For any questions, please contact Mark Duda, project manager, Alternative Energy Vehicles, CSA Group at: or 216-524-4990 ext. 88241.  

BC: REMINDER – Deadline tomorrow to provide your feedback to TSBC fee changes

Technical Safety BC is consulting on proposed fee changes to understand how they will impact your business. The proposed changes affect gas, elevating devices, and boilers, pressure vessels and refrigeration design registration applications for 2025. Consultation is open from May 8 – June 14. To view the full list of changes and take the survey – click here. 

Upcoming CPA Committee Meetings

British Columbia Committee Meeting
In-person Meeting
June 20, 2024
9:00 am – 11:00 am PT
Location: Fairfield By Marriott Kelowna
1655 Powick Road
Kelowna, BC V1X 4L1
Click here for more details

Regulatory Affairs Committee Meeting
Virtual Meeting
June 25, 2024
1:00 pm – 3:00 am ET












Visit Maxquip


CPA Ontario Seminar & Golf Tournament 2024

When: June 19-20, 2024
Where: Sheraton Fallsview
5875 Falls Avenue
Niagara Falls, ON L2G

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CPA 2024 Alberta Seminar & Kandlelighters’ Golf Tournament

When: September 6-7, 2024
Where: Red Deer Resort & Casino
3310-50 Avenue, Red Deer, AB 

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CPA 2024 BC Seminar & Golf Tournament

When: September 17, 2024
Where: Pitt Meadows Golf Club
Pitt Meadows, BC

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