Canada Occupational Health and Safety Regulations (SOR/86-304)

14.9 (1) Motorized materials handling equipment that is regularly used outdoors shall be fitted with a roof or other structure that will protect the operator from exposure to any weather condition that is likely to be hazardous to the operator’s health or safety.

(2) Where the heat produced by motorized materials handling equipment results in a temperature above 26°C in the compartment or position occupied by that operator, the area shall be protected from the heat by an insulated barrier.