44. Subject to the second paragraph, the wearing of a safety hat in compliance with CSA standard CAN/CSA Z94.1-05, Industrial Protective Headwear – Performance, Selection, Care, and Use, is mandatory for every worker exposed to head injuries.
From 13 June 2013, new safety hats must comply with the most recent version of CSA standard CAN/CSA Z94.1, Industrial Protective Headwear – Performance, Selection, Care, and Use.