Extreme heat is now a top OSHA enforcement priority. Under the revised 2026 Heat National Emphasis Program (Directive CPL 03-00-024), OSHA is conducting unannounced inspections across 55+ indoor and outdoor industries, leveraging the General Duty Clause to issue citations exceeding $16,000 to $161,000+ for non-compliance.
Here is the essential breakdown HR, EHS and operational leaders need to stay compliant and protect workers.
Heat Index Trigger Hazard Level Key Required Actions
- 80°F: Initial Action Level : Provide cool drinking water (within ¼ mile), accessible shade/cooling zones, and mandatory new-hire acclimatization.
- 90°F+ High Heat Action Level: Enforce mandatory paid rest breaks (10–15 min every 2 hours), run a buddy system, and actively monitor for symptoms.
Five Must-Haves for OSHA Compliance
- Site-Specific Written Heat Safety Plan: Generic policies fail audits. Assign a designated heat safety coordinator and map out water/shade locations and emergency routes.
- Mandatory Acclimatization (7 to 14 Days): Over 50% of heat fatalities happen in a worker’s first few days. Gradually ramp up workloads (e.g., 20% on Day 1) for all new or returning employees.
- Water, Shade and Engineering Controls: Free, cool water must be within a short walk. Provide shaded/air-conditioned zones at 80°F. Use HVLS fans or localized cooling in indoor facilities.
- Emergency Protocols for Heat Illness:
- Heat Exhaustion (sweating, dizziness, nausea): Move to shade, loosen clothes, give water, apply cold compresses.
- Heat Stroke (confusion, slurred speech, high body temp): Call 911 immediately. Rapidly cool with ice/water. Never leave the worker alone.
- Documented, Multilingual Training: Conduct training before heat exposure in languages all workers understand. Maintain sign-in sheets and logs.
Executive Action Checklist
- Audit Conditions: Track heat risks using WBGT or the OSHA/NIOSH Heat Safety App.
- Update HR Policy: Ensure zero retaliation for taking cool-down breaks or reporting symptoms.
- Empower Supervisors: Train managers to adjust shift times and enforce rest schedules on high-heat days.
- Restock First-Aid: Ensure cooling vests, cold packs, and electrolytes are available on-site.