Overview Gas Industry Image showing a gas meter, flame, and gas workers Targeting Canadian gas and propane industry workers, this standard reflects the latest advances in technology and corresponding safety requirements. It has been reviewed by regulatory authorities across Canada, and has been adopted into law in every Canadian province and territory. CSA-B149.2-10 applies to: Storage, handling, and transfer of propane Installation of appliances, equipment, components, accessories and containers on highway vehicles, recreational vehicles, mobile housing, outdoor food service units and wash-mobiles when propane is to be used for fuel purposes Propane used as an engine fuel in other than highway vehicles Installation of containers and equipment to be used for propane in distribution locations and filling plants