- California: California Education Code Section 35292.5 requires that indoor temperatures in classrooms be maintained at a minimum of 68 degrees Fahrenheit (20 degrees Celsius) during school hours.
- Florida: Florida Statute 1006.40(2)(b) requires that indoor temperatures in classrooms be maintained at a minimum of 70 degrees Fahrenheit (21 degrees Celsius) during school hours.
- Texas: The Texas Education Agency recommends that indoor temperatures in classrooms be maintained at a minimum of 68 degrees Fahrenheit (20 degrees Celsius) during school hours. However, this is not a legal requirement.