Effective October 1, 2025, Quebec has extended the reach of occupational health and safety (OH&S) “prevention plan” requirements to additional employers, by granting assent (effectiveness) to the last provisions of 2021’s “Act to modernize the occupational health and safety regime (Bill 59)” by amending the “Act respecting occupational health and safety” (OHS Act) and a related Occupational Health and Safety Commission (CNNEST) regulation (Regulation respecting prevention and participation mechanisms in an establishment).