Outdoor Heat Illness Prevention

Workers performing job duties outside must follow the campus Heat Illness Prevention & Response Plan or their site-specific plan to support a healthy work environment and comply with Cal/OSHA standards. Important precautions include:

• Scheduling breaks.

• Providing ample shade and water.

• Monitoring workers for signs and symptoms of heat illness.

• Resting in shade if experiencing heat exhaustion; don't return to work in the sun.

• If someone is experiencing heat stroke, immediately call 911 and apply first aid. Signs of heat stroke include: hot/red/dry skin, acting confused or disoriented, falling unconscious.

• Ensure completion of heat illness prevention training via these options:

• Employees must complete EHS 702 Heat Illness, a 20-minute online course available through the UC Learning Center.

• Or Employees must attend a supervisor-led discussion using the EH&S Heat Illness Fact Sheet and Checklist (This option includes a form to document training attendance).

• This training includes a review of the items in the Heat Illness Prevention & Response Plan, as well as information about the signs and symptoms of heat illness, access to water and cool down areas, responding to emergencies, and monitoring employees.

In addition to the standards above, supervisors and employees should review the Work Planning and Site Checklist for requirements when outdoor temperatures are over 95°F. To prepare:

• If possible, limit strenuous tasks to morning or late afternoon. 

• Conduct a pre-shift meeting to review high heat procedures, encourage employees to drink plenty of water, and to take cool-down rest breaks every two hours, and whenever they feel the need to do so. 

• Supervisors must maintain a means of communication and check in on staff often during high heat conditions.

• If someone is experiencing signs of heat exhaustion stop all exertion, move to a cool shaded place and hydrate with cool water. If no improvement, call 911 and seek medical help. Do not return to work in the sun.

• If someone is experiencing signs of heat stroke, immediately call 911 and apply first aid. Signs of heat stroke include: hot/red/dry skin, acting confused or disoriented, falling unconscious.

Researchers working in the field may also be subject to high heat conditions. All researchers should take EHS 702 Heat Illness training, review the guidance above, and work with their supervisor to create a Field Safety Plan for self monitoring and monitoring each other during high heat conditions.