On April 10, 2026, two days after the Occupational Safety and Health Administration’s (OSHA) Heat National Emphasis Program (NEP) expired, OSHA announced an update to the NEP. The updated NEP is effective immediately and will remain in place for five years after the effective date, unless superseded by an updated directive; however, there are no indications that OSHA’s proposed national heat illness and injury prevention rule will progress to a final rule any time soon.
The NEP – Outdoor and Indoor Heat-Related Hazards was originally issued on April 8, 2022, and was due to expire on April 8, 2025; however, it was extended for a further year in January 2025 by the Biden Administration, shortly before the administration change. The one-year extension was based on OSHA enforcement data. Between April 2022 and December 2024, OSHA conducted approximately 7,000 heat-related inspections, issued 60 citations for violations of the OSH Act related to heat hazards, issued almost 1,400 hazard alerts, and removed around 1,400 employees from hazardous heat conditions.
After analyzing OSHA and the Bureau of Labor Statistics data from calendar years 2022-2025, OSHA revised and extended the NEP again, which took effect on April 10, 2026. The high number of unplanned inspections, almost 3,500 employee days off work each year due to heat-related illnesses and injuries, and around 50 heat-related fatalities each year made it clear that there was a continued need for heat-related outreach and compliance assistance activities, on-site consultation visits, and programmed enforcement. The revised NEP aims to reduce or eliminate worker exposures to heat-related hazards that result in illnesses, injuries, and deaths. OSHA will target industries and worksites where employees are exposed to heat-related hazards and have not been provided with adequate protection.
OSHA identified industries with high rates of heat-related illness and injuries, and employers who have received heat-related citations or hazard letters. The revised NEP directs OSHA inspection priorities to 55 high-risk industries in both indoor and outdoor work settings. OSHA will prioritize on-site (in-person) response for complaints and for all employer-reported hospitalizations related to heat hazards. OSHA has eliminated the former numerical inspection goal and has introduced two reorganized appendices, one for evaluating heat programs and another for citation guidance. The updated NEP also has clearer guidance to improve tracking and more effectively implement the program’s enforcement and outreach efforts.
“Compliance officers will continue to conduct outreach and compliance assistance and expand any inspection where there is evidence of heat-related hazards on heat priority days,” explained OSHA in an announcement about the revised NEP. “Additionally, compliance officers will conduct random inspections focused on heat hazards in high-risk industries on days when the National Weather Service issues a heat advisory or warning.”
OSHA has been working on a permanent federal heat illness and injury prevention standard for several years, and published a notice of proposed rulemaking on August 30, 2024 – Heat Injury and Illness Prevention in Outdoor and Indoor Work Settings. The proposed rule applies to general industry, construction, maritime, and agriculture sectors, and requires employers to develop written heat illness and injury prevention plans, monitor for heat conditions in the workplace, and implement control measures when temperatures reach specific levels. There is an initial trigger point of 80°F, and a second trigger point of 90°F. The required controls include regular rest breaks, provision of drinking water, acclimatization protocols, and training for employees and supervisors. The public comment period closed on January 14, 2025, and the extended comment period ended on October 30, 2025. While the proposed rule has not been withdrawn, no date has been set for a final rule, indicating it is not a priority under the current administration.
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