While Federal OSHA establishes the baseline for OSHA standards, it is increasingly no longer the full story for employers. Indeed, the real compliance challenge today is keeping up with state plans as rules, guidance, and enforcement priorities can change quickly and diverge significantly. States are pushing hard on operationally complex, enforcement-friendly issues such as heat, ergonomics, workplace violence programs, and inspection procedures. This post highlights some of the developments from the past six months most likely to matter in practice.
Arizona: Turning up the Heat on Temperature Safety Guidance
In 2025, Arizona Governor Katie Hobbs issued Executive Order 2025-09, directing the Arizona Division of Occupational Safety and Health (ADOSH) to lead the state’s heat safety efforts. By the end of the year, ADOSH’s Workplace Heat Safety Task Force delivered recommendations calling for written Heat Illness Prevention Plans and core protections such as water, rest, shade, acclimatization, and training. Although Arizona does not yet have a codified heat standard, ADOSH’s Heat State Emphasis Program, guidance, and enforcement activity are already shaping employer expectations around heat hazards.
Washington: Warming up to Indoor Heat Rules Continue reading


Following on the heels of Fed/OSHA’s recent release of the unofficial version of its Indoor and Outdoor Heat Illness Prevention Notice of Proposed Rulemaking (“NPRM”), on July 24, 2024, the California Department of Industrial Relations issued a press release stating that the Office of Administrative Law (OAL) approved the Cal/OSHA Indoor Heat Illness regulation and that the regulation goes into effect immediately. While the Cal/OSHA Indoor Heat Illness Prevention regulation has been in the works for some time, Cal/OSHA announcing that the effective date is July 23, 2024, was earlier than expected. Emphasis on heat illness prevention has been the focus of many OSH agencies and these recent developments in both Fed/OSHA and Cal/OSHA continue this trend.










(See our previous blog articles regarding the
The new rule iteration is set to take effect on about May 2, 2022, once approved by the Office of Administrative Law, and will remain in effect until December 31, 2022. As mentioned in our prior 


