# WAC 296-62-09530 (nonbreathable PPE) — State Heat Illness Prevention Standards — Temperature Triggers and Required Employer Actions

For WAC 296-62-09530 (nonbreathable PPE), jurisdiction is Washington; effective date is July 17, 2023; initial trigger temperature f is 52; initial trigger actions is Same outdoor heat exposure safety program requirements: drinking water, shade or other means to reduce body temperature, preventative cool-down rest periods, acclimatization, emergency response procedures; high heat trigger temperature f is 90, recorded from its source on 2026-08-17.

- **jurisdiction:** Washington _(verified: appears in the quote below)_
- **regulation citation:** WAC 296-62-09530 (nonbreathable PPE)
- **effective date:** July 17, 2023 _(our reading, not quoted from the source)_
- **initial trigger temperature f:** 52 _(verified: appears in the quote below)_
- **initial trigger actions:** Same outdoor heat exposure safety program requirements: drinking water, shade or other means to reduce body temperature, preventative cool-down rest periods, acclimatization, emergency response procedures _(our reading, not quoted from the source)_
- **high heat trigger temperature f:** 90
- **high heat actions:** Mandatory cool-down rest periods: at or above 90°F, 10 minutes every 2 hours; at or above 100°F, 15 minutes every 1 hour; close observation via buddy system, regular communication, or other effective means _(our reading, not quoted from the source)_
- **coverage scope:** Outdoor work; employees required to wear nonbreathable clothes including vapor barrier clothing or PPE such as chemical resistant suits _(our reading, not quoted from the source)_
- **acclimatization period days:** 14
- **written plan required:** Yes _(our reading, not quoted from the source)_

## What the source says

> Nonbreathable clothes including vapor barrier clothing or PPE such as chemical resistant suits | 52°F

## Source

- https://app.leg.wa.gov/wac/default.aspx?cite=296-62-09530

Last verified: 2026-08-17. Review by: 2027-08-17.
Part of [State Heat Illness Prevention Standards — Temperature Triggers and Required Employer Actions](https://referencesource.org/state-heat-illness-prevention-standards/).