With high temperatures affecting much of California, Cal/OSHA has issued a new advisory reminding employers to protect employees from heat illness in both outdoor and indoor workplaces.
Heat illness can develop quickly and may be fatal. Employers should review their heat illness prevention procedures with supervisors and employees, confirm that required protections are in place, and monitor changing weather conditions throughout the workday.
For outdoor workplaces, employers must provide employees with fresh, suitably cool drinking water at no cost and place it as close as practicable to the work area. Shade must be available when temperatures exceed 80 degrees and must be provided upon request at lower temperatures. Employees must also be permitted to take preventative cool-down rest periods when needed.
When outdoor temperatures reach 95 degrees, employers in agriculture and certain other covered industries must implement high-heat procedures. These procedures include regularly observing employees for signs of heat illness, maintaining effective communication, reminding employees to drink water and take cool-down breaks, and responding promptly when an employee shows possible symptoms.
Employers should also pay close attention to acclimatization. New employees and employees newly assigned to high-heat areas must be closely observed during their first 14 days. All employees must be closely observed during a heat wave.
California’s indoor heat illness standard generally applies when an indoor workplace reaches 82 degrees. Covered employers must provide drinking water, access to cool-down areas, rest periods, training, and additional controls under specified conditions. An employer may be subject to both the indoor and outdoor standards when employees work in both environments.
Employers should take the following steps now:
- Review and update the written Heat Illness Prevention Plan.
- Confirm that supervisors understand the 80-degree and 95-degree outdoor thresholds.
- Make sure sufficient water and properly located shade are available before employees begin work.
- Train employees to recognize and promptly report heat illness symptoms.
- Establish reliable communication and emergency response procedures for remote fields and work areas.
- Closely monitor new employees, returning employees, and employees working during sudden temperature increases.
- Review indoor work areas, including warehouses, packing facilities, shops, and enclosed equipment areas, for potential coverage under the indoor heat standard.
Written plans should reflect actual workplace practices. Employers should also document employee and supervisor training and periodically verify that field-level procedures are being followed.
Additional heat illness prevention materials, model plans, and training resources are available through Cal/OSHA’s Heat Illness Prevention website.
