Nevada heat illness prevention plan requirements
Yes. Nevada requires employers, including construction contractors, to keep a written heat illness prevention plan under NAC 618 (R131-24). R131-24 (NAC ch. 618): no temperature trigger. Employers with more than 10 employees must do a written heat job hazard analysis and keep a written plan where exposure exceeds 30 minutes in any 60-minute period.
Last verified: 2026-07-07.
The rule at a glance
| Written plan for contractors | Required |
|---|---|
| Rule | NAC 618 (R131-24) |
| Coverage | All employers with more than 10 employees (climate-controlled indoor exempt) |
| In effect since | April 29, 2025 |
What your written plan must contain
To be compliant in Nevada, your written plan must cover these elements, matched to NAC 618 (R131-24):
- ✓ Access to fresh, cool drinking water close to the work area
- ✓ Shade or another means to cool down during rest
- ✓ Paid preventative cool-down rest breaks
- ✓ An acclimatization plan for new employees and those returning after time away
- ✓ Emergency response procedures for heat illness, including how to summon aid
- ✓ Training for employees and supervisors before heat work and each season
- ✓ Written heat illness prevention procedures kept with the safety program
Common questions
▸Does Nevada require a written heat illness prevention plan?
Yes. Under NAC 618 (R131-24), Nevada employers must keep written heat illness prevention procedures. R131-24 (NAC ch. 618): no temperature trigger. Employers with more than 10 employees must do a written heat job hazard analysis and keep a written plan where exposure exceeds 30 minutes in any 60-minute period.
▸What temperature triggers heat rules in Nevada?
There is no fixed state trigger. As a practical benchmark, OSHA treats a heat index of 80 degrees F as the point to step up precautions and 90 degrees F and above as high risk.
▸What else do Nevada contractors need besides a heat plan?
General contractors and prequalification portals such as ISNetworld and Avetta typically require a company-wide written safety program, a site-specific safety plan per project, and job hazard analyses, regardless of state heat law.
Official sources
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