OSHA Requirements on Heat Stress and Sun Protection

If your business requires that employees spend extended periods working in temperatures of 75 degrees or more, work under strong sunlight or do labor that is physically exhausting and causes profuse sweating, they could be vulnerable to heat stress or other heat-related health problems. Some people are especially prone to illness and injury even in standard working conditions, let alone those involving excessive heat. These include pregnant women, the elderly or anyone with immune-deficient diseases.