Oil and Gas Occupational Safety and Health Regulations

13.4 Where there is a hazard of head injury in a work place, the employer shall provide protective headwear that meets the standards set out in CSA Standard Z94.1-M1977, Industrial Protective Headwear, the English version of which is dated April 1977, as amended to September 1982, and the French version of which is dated April 1980, as amended to September 1982.