The CSA B149 Series provides important guidance for the safe handling and storage of natural gas and propane, installation of related appliances and equipment, including vehicle refuelling, and stationary gas engines and turbines, as well as for systems generating and using digester gas, landfill gas, and biogas. CSA B149.1, Natural gas and propane installation code , is a major component of the natural gas safety system in Canada. As such, it is incorporated by reference into regulations by all provinces and territories. The latest 2025 edition of the code reflects the latest safety requirements and cutting-edge advances in industry technologies.
Latest editions of CSA B149 codes
CSA B149.1:25 Natural gas and propane installation code
Overview of Changes training included*
CSA B149.2:25 Propane storage and handling code
Overview of Changes training included*
CSA B149.3:25 Code for field approval of fuel-burning appliances and equipment
Overview of Changes training included*
CSA B149.1:25 Code, Handbook & Training Package
Includes CSA B149.1:25, Handbook, and Overview of Changes training*
CSA B149.1:25, CSA B149.2:25 & Training Package
Includes CSA B149.1:25, CSA B149.2:25, and Overview of Changes training*
*Training is not included with a purchase of subscription products.
CSA B149.3 :20
Code for the field approval of fuel burning appliances and equipment
CSA B149:20 Complete
Includes the CSA B149.1:20, CSA B149.2:20 & Handbook