S-2.1, r. 14 - Regulation respecting occupational health and safety in mines

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11.1. As of 23 December 2016, a person who is in an open-pit mine must wear apparel complying with the Guideline on Selection, Use, and Care of High-Visibility Safety Apparel, CSA Z96.1-08, and with the High-Visibility Safety Apparel standard, CSA Z96-09. Class 2 high-visibility safety apparel is required as a minimum.
Despite the foregoing, wearing high-visibility safety apparel is not required in a lunchroom, a cab or an office, or to get from the parking lot of the site entrance to a building.
O.C. 445-2016, s. 2.