# WAC 296-62-095 through 296-62-09560 — State Heat Illness Prevention Standards — Temperature Triggers and Required Employer Actions

For WAC 296-62-095 through 296-62-09560, jurisdiction is Washington; effective date is July 17, 2023; initial trigger temperature f is 80; initial trigger actions is Address outdoor heat exposure safety program in written accident prevention program; provide sufficiently cool drinking water; provide shade or other sufficient means to reduce body temperature; encourage and allow preventative cool-down rest periods; 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 296-62-095 through 296-62-09560
- **effective date:** July 17, 2023 _(our reading, not quoted from the source)_
- **initial trigger temperature f:** 80 _(verified: appears in the quote below)_
- **initial trigger actions:** Address outdoor heat exposure safety program in written accident prevention program; provide sufficiently cool drinking water; provide shade or other sufficient means to reduce body temperature; encourage and allow preventative cool-down rest periods _(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; closely observe employees for signs and symptoms via regular communication, mandatory buddy system, or other effective means _(our reading, not quoted from the source)_
- **coverage scope:** Outdoor work; all industries _(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

> All other clothing | 80°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/).