As specified by the TSSA and Ministry of Labour , only persons holding a valid certificate showing training in the safe handling of propane/natural gas powered heaters and equipment can handle the propane on a construction site.
This course is given under TSSA instructor license #000155244 (TP615)
Safe handling and storage of propane cylinders
Safe handling and use of propane/natural gas heaters and torches (under 400,000 btu). This covers both Vapour and liquid propane systems
Hazards of propane
Safety devices used in propane equipment and storage vessels.
Connecting and disconnecting propane bottles safely from heaters, torches and propane powered equipment.
Proper construction of a propane storage area when storing bottles on a construction site.