OSHA Updates Heat Hazard Enforcement Program Through 2031
On April 10, 2026, the Occupational Safety and Health Administration (OSHA) updated its National Emphasis Program (NEP) focused on protecting workers from indoor and outdoor heat-related hazards. The revised program took effect immediately and will remain active through April 10, 2031.
OSHA first launched the NEP in April 2022 to address the growing risks of workplace heat exposure. The program is designed to identify and reduce heat-related hazards before they lead to preventable injuries, illnesses or fatalities.
Under the program, OSHA establishes heat priority days when the heat index is expected to reach 80 degrees Fahrenheit or higher. During those days, the agency may increase outreach efforts in high-risk industries and continue investigating any reported heat-related fatality, catastrophe, complaint or referral, regardless of industry classification.
The NEP encourages employers to protect workers by providing access to drinking water, rest breaks, shade, training and acclimatization procedures for new or returning employees who may be more vulnerable to heat stress.
The updated version of the program includes several changes. OSHA refreshed targeted industry lists using current labor and enforcement data, removed outdated references, updated resource links and revised inspection goals. The agency also reorganized guidance materials related to evaluating heat programs and issuing citations.
In addition, OSHA compliance officers may conduct random inspections in high-risk industries when the National Weather Service issues a heat advisory or warning. Officers will also continue providing education and compliance assistance to employers.
Heat illness remains a serious workplace hazard for both indoor and outdoor employees, causing avoidable injuries and deaths each year. OSHA says the updated program will help direct enforcement and outreach resources where they are most needed while promoting stronger prevention practices.
The agency will also continue sharing heat safety resources with businesses, labor groups and industry partners. Employers can seek help through OSHA’s On-Site Consultation Program, which offers free and confidential workplace safety guidance for small and mid-sized businesses.