Nevada Heat Illness Prevention Plan Requirements

Nevada’s heat illness regulation R131-24 (codified in NAC chapter 618, enforced since April 29, 2025) works differently from other states: there is no temperature trigger. Employers with more than 10 employees must perform a written job hazard analysis of heat exposure for job classifications where employees work more than 30 minutes in any 60-minute period in conditions that may create heat illness risk. Where the analysis identifies a hazard, the employer’s written safety program (required by NRS 618.383) must include a heat illness prevention plan covering potable water, rest breaks, means of cooling, employee monitoring by a designated person, mitigation of processes that add heat or humidity, emergency response, and training.

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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 JHA is the trigger mechanism: it must be in writing, kept current when work conditions change, and it decides whether the heat plan is required. For Las Vegas and Reno construction work, summer exposure over 30 minutes an hour is nearly automatic, so as a practical matter Nevada contractors over 10 employees need both the analysis and the plan. Employers with 10 or fewer employees are outside the written-program mandate but still face the general duty to control recognized heat hazards.

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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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