Continuing the theme of seasonal-and-weather protection, people are often surprised to hear that there are currently no specific OSHA standards for occupational heat exposure.
However, under the General Duty Clause, Section 5(a)(1) of the Occupational Safety and Health Act (OSHA) of 1970, employers are required to provide their employees with a place of employment that “is free from recognizable hazards that are causing or likely to cause death or serious harm to employees.”
Read more at osha.gov