Heat Illness Prevention

water keeps you going

California employers are required to take these four steps to prevent heat illness:

  1. Training
    Train all employees and supervisors about heat illness prevention.
  2. Water
    Provide enough fresh water so that each employee can drink at least 1 quart per hour, or four 8 ounce glasses, of water per hour, and encourage them to do so.
  3. Shade
    Provide access to shade and encourage employees to take a cool-down rest in the shade for at least 5 minutes. They should not wait until they feel sick to cool down.
  4. Planning
    Develop and implement written procedures for complying with the Cal/OSHA Heat Illness Prevention Standard.

Water.Rest.Shade. The work can't get done without them.

Heat Illness Prevention Training

May 2017      
Heat Illness Prevention Network Telephone Conference Call
Thursday, May 11, 2017
Who: Christine Baker, Director, Department of Industrial Relations
Juliann Sum, Chief, Cal/OSHA
Nathan Schmidt, Assistant Chief Counsel, Cal/OSHA
William Krycia, Heat Program Coordinator
Eugene Glendenning, Cal/OSHA Consultation Services
What: Heat Illness Prevention Network conference call with Q&A to review best practices for preventing heat illness at outdoor worksites
When: Thursday, May 11, 2017 at 11:00 a.m. PDT
  • Please call 800-230-1096
  • This is an operator-assisted call; the passcode is DIR-HIP
  • If you would like to submit questions in advance of the call, please contact us via email: heat@dir.ca.gov.

Education, Training Resources and Publications


For Employers:

For Workers:

More CAL/OSHA Resources:

  • 99 Calor campaign page: contains materials available for download including Heat Illness Prevention videos and discussion guides in multiple languages.
    • Videos and guides available in English, Spanish, Punjabi, Hmong and Mixteco

Outreach and Education Campaign

Heat Illness Regulation

Read the Heat Illness Standard from the California Code of Regulations, Title 8:

Additional Heat Illness Links

May 2017