Cal/OSHA Reminds Employers to Protect Outdoor Workers from Heat Illness as Temperatures Rise Across the State

Oakland—Cal/OSHA is reminding all employers to protect their outdoor workers from heat illness as temperatures rise throughout California. The National Weather Service has issued heat advisories for triple-digit temperatures today in Fresno, Kern, Kings and Tulare counties and forecasts high heat throughout inland parts of the state next week.

Employers with outdoor workers must take the following steps to prevent heat illness:

  • Plan – Develop and implement an effective written heat illness prevention plan that includes emergency response procedures.
  • Training – Train all employees and supervisors on heat illness prevention.
  • Water – Provide drinking water that is fresh, pure, suitably cool and free of charge so that each worker can drink at least 1 quart per hour, and encourage workers to do so. 
  • Shade – Provide shade when workers request it and when temperatures exceed 80 degrees. Encourage workers to take a cool-down rest in the shade for at least five minutes. They should not wait until they feel sick to cool down.

Cal/OSHA urges workers experiencing possible overheating to take a preventative cool-down rest in the shade until symptoms are gone. Workers who have existing health problems or medical conditions that reduce tolerance to heat, such as diabetes, need to be extra vigilant. Some high blood pressure and anti-inflammatory medications can also increase a worker’s risk for heat illness.

To prevent heat illness, it is crucial that supervisors are effectively trained on emergency procedures in case a worker gets sick. This helps ensure sick employees receive treatment immediately and that the symptoms do not develop into a serious illness or death.

Cal/OSHA’s Heat Illness Prevention special emphasis program, the first of its kind in the nation, includes enforcement of heat regulations as well as multilingual outreach and training programs for California’s employers and workers. Detail on heat illness prevention requirements and training materials are available online on Cal/OSHA’sHeat Illness Prevention web page and the99calor.org informational website. A Heat Illness Prevention online tool is also available on Cal/OSHA’s website.

Cal/OSHA helps protect workers from health and safety hazards on the job in almost every workplace in California. Employers and workers who have questions or need assistance with workplace health and safety programs can call Cal/OSHA’s Consultation Services Branch at 800-963-9424.

Complaints about workplace safety and health hazards can be filed confidentially with Cal/OSHA district offices. Employees with work-related questions or complaints may contact DIR’s Call Center in English or Spanish at 844-LABOR-DIR (844-522-6734).

Monica Vargas

Monica is a Public Information Officer for the California Governor's Office of Emergency Services (Cal OES). She has been involved in the Aliso Canyon Gas Leak, Valley Fire, Butte Fire, historic drought, Oroville Dam Emergency Spillway Incident and 2017 winter storms. She previously served Cal OES as an analyst in international affairs, technology operations and executive staff support.

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