Osha has updated its National Emphasis Program on heat-related hazards, keeping the agency’s spotlight on workers exposed to dangerous temperatures in construction, waste management and dozens of other high-risk industries. The revised program, first issued in April 2022, now uses Osha and Bureau of Labor Statistics data from 2022 through 2025 to guide inspection priorities across 55 industries.
The update lands as temperatures across the country are already reaching all-time highs in the early days of spring, a reminder that heat illness is not just a summer problem. Osha said heat illness remains a serious hazard for both indoor and outdoor workers and causes preventable injuries and fatalities every year.
The revised emphasis program strips out outdated background material, updates links, and removes a former numerical inspection goal. It also adds two reorganized appendices, one for evaluating heat programs and another for citation guidance, giving compliance officers a more structured playbook when they respond to hot-weather risks.
That matters because the program is meant for the places where heat danger is most likely to show up first. Compliance officers will conduct random inspections focused on heat hazards in high-risk industries when heat advisories or warnings are issued, and they will offer assistance before expanding any inspection if they find evidence of heat-related hazards on hot days.
The practical effect is straightforward: Osha is tightening the way it looks for heat violations while giving inspectors clearer tools to act when conditions turn dangerous. For employers, the update is a signal that rising spring temperatures will not be treated as a background concern, but as a trigger for enforcement.
