Flammable Liquids Bulk Storage Regulations (C.R.C., c. 1148)

54 (1) Except as provided in section 17, all electrical equipment and facilities located out-of-doors within 25 feet of a storage tank, loading, unloading rack or terminal, pump or pumphouse used for Class I flammable liquids or crude petroleum shall comply with the requirements of the Canadian Electrical Code for Class I, Division II, Group D hazardous locations.

(2) Except as provided in section 41, all electrical equipment and facilities located inside a pumphouse, warehouse or other building where any flammable liquid is dispensed, processed or otherwise exposed to evaporation, leakage or spillage, or where Class I flammable liquids are stored or handled shall comply with the requirements of the Canadian Electrical Code for Class I, Division I, Group D hazardous locations.

(3) All electrical equipment and facilities used in environments where explosion proof equipment and facilities are prescribed in this section shall be approved for Class I, Division I, Group D hazardous locations and shall be so marked or labelled by the manufacturer.