Nevada Heat Illness Prevention Plan Requirements
Nevada’s heat illness regulation R131-24 (codified in NAC chapter 618, filed and effective 15 November 2024, with Nevada OSHA enforcement from 29 April 2025) works differently from other states: there is no temperature trigger anywhere in it. Every employer subject to NRS 618.383 must perform a one-time written job hazard analysis of heat exposure, before a task is first undertaken and whenever it materially changes. The analysis is not limited by any duration threshold: the 30-minute figure defines a list inside the analysis, namely the job classifications in which the majority of employees have exposure for more than 30 minutes of any 60-minute period, not counting breaks. An employer whose analysis finds no exposure should still document that in writing. Only where the analysis identifies a hazard must the employer designate a person and add a heat illness prevention plan to the written safety program NRS 618.383 requires, covering potable water as described in 29 CFR 1926.51(a)(1), a rest break for any employee showing signs or symptoms of heat illness, means of cooling, monitoring, mitigation of processes that add heat or humidity, emergency response, and training.
What the written plan must cover
- ✓ Provision of potable water
- ✓ Rest breaks when an employee shows signs of heat illness
- ✓ Means of cooling (shade, air conditioning, fans, or equivalent)
- ✓ A designated person to monitor working conditions and employees for heat illness
- ✓ Identification and mitigation of work processes that generate additional heat or humidity
- ✓ Emergency response procedures, including contacting emergency services and care while waiting
- ✓ Training on heat illness signs, prevention, and the plan itself
The job hazard analysis comes first
The analysis is the trigger mechanism: it must be in writing, redone whenever a task materially changes, and it decides whether the heat plan is required. Note that the analysis itself is required of every covered employer, not only those whose crews cross the 30-minute mark: that figure governs a list inside the analysis and who must be trained, not whether you must do one. For Las Vegas and Reno construction work summer exposure over 30 minutes an hour is nearly automatic, so as a practical matter Nevada contractors need both the analysis and the plan. Employers with 10 or fewer employees are outside NRS 618.383 entirely unless they manufacture explosives, but still face the general duty to control recognized heat hazards.
Generate your Nevada plan
TailgateDocs writes your heat illness prevention plan to R131-24 for $49, structured to drop into the written safety program NRS 618.383 requires, with the monitoring, cooling, and emergency response elements the regulation lists. Need the full written safety program too? That is the $149 document, and the thanks page will offer it with your answers carried over.
Common questions
▸When did Nevada start enforcing the heat rule?
Nevada OSHA began enforcing R131-24 on April 29, 2025.
▸Is there a temperature threshold like California’s 80 degrees?
No. Nevada’s rule is hazard-based: your written job hazard analysis determines whether employees face heat illness risk, whatever the thermometer says. Indoor work counts too.
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