Book, CSA
This is the seventeenth edition of CSA B149.1, Natural gas and propane installation code. It supersedes all previous editions published.
The CSA B149 Series provides important guidance on how to do your job safely -- from handling and storage of natural gas and propane, to safe and effective installation of related appliances and equipment, and more.
The 2025 edition is the latest for the B149.1, Natural gas and propane installation code.
CSA B149.1:25 applies to the installation of:
- Appliances, equipment, components, and accessories where gas is to be used for fuel purposes.
- Piping and tubing systems.
- Vehicle-refueling appliances and associated equipment.
- Stationary gas engines and turbines.
The code has been reviewed by regulatory authorities across Canada, and is expected to be adopted into law in every Canadian province and territory.