Legal restrictions on workplace environments, including those involving temperature, vary by state. As of 2015, there is no federal requirement to maintain workplace temperatures under Occupational Safety and Health Administration regulations.
While there is no federal mandate for temperature control in an office environment, OHSA standards often provide more worker protection on the state level. For example, Minnesota OSHA requires a minimum temperature of 65 degrees in an office area. Generally speaking, OSHA recommends temperature control in the range of 68 to 76 degrees F and humidity control in the range of 20 percent to 60 percent for office environments.