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This directive is currently only available in: PDF
Question: What can I do if my indoor workplace is too hot?
Answer:
OSHA does not require employers to provide air conditioning for workspaces. OSHA does recommend temperature control in the range of 68-76°F. The qualities of good indoor air quality (IAQ) should include comfortable temperature and humidity, adequate supply of fresh outdoor air and control of pollutants from inside and outside of the building. Employers are responsible for protecting workers from temperature extremes. For additional information on this subject, see frequently asked questions about indoor air quality.
Question: Are employers required to take steps to protect workers in extreme outdoor heat?
Answer:
Employers are responsible for protecting workers from temperature extremes, both indoors and outdoors, and should establish a complete heat illness prevention program if workers are exposed to conditions that can cause heat illness. Elements of an effective program include: providing workers with water, rest and shade; gradually increasing workloads and allow more frequent breaks for new workers to build a tolerance for working in the heat (acclimatization); modify work schedules as necessary; plan for emergencies and train workers about the symptoms of heat-related illnesses and their prevention; and monitor workers for signs of illness.
This directive is currently only available in: PDF
OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.
September 1, 2021
