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Preventing and Responding to Heat Illness

Best Practises - Your Written Program

III. Emergency Response Procedures

Cal/OSHA investigations (Study 2) showed that in 2006, 88% of workplaces where heat illness occurred did not have adequate Emergency Response procedures set up in advance.

Cal/OSHA investigations (Study 1) showed that in 2005, 64% of the workplaces where heat illness occurred did not have any Emergency Response Procedures set up in advance to respond to a heat illness emergency.

Smart Tips

Providing Emergency Response

All employees and supervisors must be thoroughly trained on how to respond in the case of a heat illness emergency. In order for your Emergency Response Procedures to be effective they need to be set up in advance of your employees working in warm or hot conditions and:


  • Provide a rapid response from certified first aid personnel who are on the worksite (see T8 CCR 1512, 3400, 3421, 3439, 6251) to initially evaluate potential heat illness victims at the work site and if necessary, start work site first aid until medical personnel arrive
  • Provide a rapid response from medical personnel such as doctors, nurses and emergency medical technicians to provide effective treatment
  • Comply with all the Cal/OSHA regulatory requirements. [see Employee Training and Supervisor Training
  • Provide supervisors and employees in remote locations with "tools" for effective real time communication. These may include the use of cell phones, walkie-talkies, two way radios, and satellite phones or other devices
  • Ensure that no one falls ill or becomes sick or missing without being noticed
  • Inform supervisors, employees, and designated persons about their work site address or location, and update them whenever work locations change during the work shift, in case there is a need for emergency medical services
  • Clearly indicate the location(s) of medical treatment facilities or alternate locations where emergency medical services have been pre-arranged
  • Ensure that employees recognized as having any of the symptoms of heat illness are never left alone or sent home without medical authorization