# Cal. Code Regs. tit. 8, § 3395 — State Heat Illness Prevention Standards — Temperature Triggers and Required Employer Actions

For Cal. Code Regs. tit. 8, § 3395, jurisdiction is California; effective date is May 1, 2015; initial trigger temperature f is 80; initial trigger actions is Shade shall be present when the temperature exceeds 80 degrees Fahrenheit; access to potable drinking water (one quart per employee per hour); employees allowed and encouraged to take a preventative cool-down rest in the shade (not less than 5 minutes); high heat trigger temperature f is 95, recorded from its source on 2026-08-17.

- **jurisdiction:** California _(verified: appears in the quote below)_
- **regulation citation:** Cal. Code Regs. tit. 8, § 3395
- **effective date:** May 1, 2015 _(our reading, not quoted from the source)_
- **initial trigger temperature f:** 80 _(verified: appears in the quote below)_
- **initial trigger actions:** Shade shall be present when the temperature exceeds 80 degrees Fahrenheit; access to potable drinking water (one quart per employee per hour); employees allowed and encouraged to take a preventative cool-down rest in the shade (not less than 5 minutes) _(our reading, not quoted from the source)_
- **high heat trigger temperature f:** 95
- **high heat actions:** Effective communication maintained; observation of employees for alertness and signs or symptoms of heat illness (supervisor observation of 20 or fewer, mandatory buddy system, or regular communication); designated employee authorized to call for emergency medical services; reminders to drink water throughout shift; pre-shift meetings to review high heat procedures; for agriculture: minimum ten minute net preventative cool-down rest period every two hours _(our reading, not quoted from the source)_
- **coverage scope:** Outdoor only; all outdoor places of employment for basic provisions; agriculture, construction, landscaping, oil and gas extraction, and transportation or delivery of heavy materials for high-heat procedures _(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

> Shade shall be present when the temperature exceeds 80 degrees Fahrenheit. When the outdoor temperature in the work area exceeds 80 degrees Fahrenheit, the employer shall have and maintain one or more areas with shade at all times while employees are present

## Source

- https://www.dir.ca.gov/title8/3395.html

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/).