🗞️ OSHA Turns Up the Heat: Federal Agency Revamps Workplace Heat Hazard Program for 2026
OSHA updated its National Emphasis Program on workplace heat hazards on April 10, 2026, refocusing inspections on 55 high-risk industries using four years of enforcement data. The revised program is effective immediately and runs for five years.
Federal workplace safety regulators moved Thursday to sharpen their enforcement strategy on heat-related hazards, issuing a revised National Emphasis Program that retargets inspections and outreach toward the industries where workers face the greatest risk of heat illness and death.
The Occupational Safety and Health Administration's updated directive, which takes effect immediately and runs for five years, replaces an original program first launched in April 2022 and later extended through April 8, 2026 by OSHA's then-assistant secretary in January of that year. The revision draws on four years of enforcement data collected jointly by OSHA and the Bureau of Labor Statistics, narrowing the program's focus to 55 high-risk industries from the 70 previously targeted. The list captures workplaces where heat-related illness rates are highest and employers have previously received citations or hazard alert letters. Construction sites, manufacturing floors, agricultural operations, landscaping crews, and food service environments are among those in scope.
Structurally, the new directive is leaner and more precise. It eliminates a former numerical inspection quota and replaces the old appendices with two reorganized sections: one to guide compliance officers in evaluating employer heat programs, the other to standardize citation decisions. The agency said the changes would improve tracking and allow for more consistent enforcement from one regional office to the next.
On the ground, the mechanics of enforcement change little. Compliance officers will continue to conduct programmed inspections at high-risk worksites on days when the National Weather Service issues a heat advisory or warning, and are directed to expand any ongoing inspection when evidence of heat hazard conditions is found. The agency's free On-Site Consultation Program, aimed at small and midsize employers, remains available to help businesses build preventive programs before an inspector ever arrives.
The update lands against a backdrop of unresolved federal rulemaking. A proposed permanent heat illness prevention standard that would codify enforceable requirements around water access, rest breaks, shaded areas, and worker acclimatization has been mired in the regulatory process with no finalization date in sight. Without that rule on the books, OSHA must continue to rely on the General Duty Clause of the Occupational Safety and Health Act, a broad provision that permits citations for recognized workplace hazards even in the absence of a specific standard. According to the National Weather Service and National Oceanic and Atmospheric Administration, heat is the leading cause of weather-related death in the United States, a distinction that has sharpened the pressure on federal regulators to act.
Key Points
- OSHA issued a revised Heat NEP on April 10, 2026, effective immediately for five years
- The updated program targets 55 high-risk industries, using 2022 to 2025 OSHA and BLS data
- Replaces the original 2022 NEP (which targeted 70 industries), extended through April 8, 2026
- Eliminates numerical inspection goals and adds two reorganized appendices for program evaluation and citation guidance
- Inspections will be triggered on days with National Weather Service heat advisories or warnings
- A proposed permanent federal heat standard remains stalled in rulemaking with no finalization date
- OSHA retains General Duty Clause authority to cite employers for heat hazards absent a permanent standard
- Free compliance assistance is available through OSHA's On-Site Consultation Program
Primary Source Author: U.S. Department of Labor / Occupational Safety and Health Administration
Primary Source: US DOL — OSHA Updates National Emphasis Program on Heat Hazards (April 10, 2026)
Primary Source Document: OSHA Directive CPL 03-00-024 — Revised NEP (April 10, 2026)
Supplemental Links
- OSHA Heat Illness Prevention — Overview & Resources
- OSHA On-Site Consultation Program
- Ogletree Deakins — OSHA's Heat Program to Expire While Heat Standard Stalls
- EHS Today — OSHA's Heat Program Expired April 8
- National Law Review — OSHA's Heat NEP Expiration & Standard Status
- Jackson Lewis — OSHA Extends Heat Hazard Program
