Labor: health and safety; revisions to the occupational safety and health act; provide for. Amends title & secs. 4, 13, 14, 14a, 14e 14f, 14j, 14n, 24, 27, 28, 29, 30, 31, 33, 35, 36, 37, 41, 45, 46, 52, 54, 55, 56, 63, 65 & 91 of 1974 PA 154 (MCL 408.1004 et seq.) & repeals sec. 1035a of 1974 PA 154 (MCL 408.1035a).

SB 49 amends Michigan's Occupational Safety and Health Act to update key definitions and clarify enforcement responsibilities. It revises terms like "asbestos," "authorized employee representative," and "construction operations," while specifying that the Department of Labor handles safety enforcement and the Department of Public Health manages health enforcement. The bill requires these departments to annually report to legislative committees on overlapping authority and coordination efforts. This affects Michigan employers and workers, particularly in construction, agriculture, and asbestos-related industries, by updating how safety and health rules are defined and implemented.