Reference Source

Cal. Code Regs. tit. 8, § 3395

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
regulation citation
Cal. Code Regs. tit. 8, § 3395
effective date
May 1, 2015 our reading
initial trigger temperature f
80 verified
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
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
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
acclimatization period days
14
written plan required
Yes our reading
Sourcedir.ca.gov
Verified
Review by
DatasetState Heat Illness Prevention Standards — Temperature Triggers and Required Employer Actions

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

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

dir.ca.gov, retrieved 2026-08-17

Source

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