Oil and Gas Occupational Safety and Health Regulations

12.5 (1) Hot work shall not be performed in a confined space where an explosive or flammable hazardous substance may be present unless a qualified person has determined that the work can be safely performed therein.

(2) Where hot work is to be performed in a confined space,

• (a) a qualified person shall patrol the area surrounding the confined space and maintain therein a fire protection watch until all hazard of fire is passed; and

• (b) fire extinguishers shall be provided in the area referred to in paragraph (a).