Labor, and Pensions of the Senate a report on the Secretary’s implementation of this section. 7. Definitions For purposes of this Act: (1) The term Commission means the Occupational Safety and Health Review Commission. (2) The term employee has the same meaning as in section 3(6) of the Occupational Safety and Health Act of 1970 ( 29 U.S.C. 652(6) ). (3) The term employer has the same meaning as in section 3(5) of the Occupational Safety and Health Act of 1970 ( 29 U.S.C. 652(5) ). (4) The term heat stress means the load of heat that a person experiences due to— (A) sources of heat or heat retention (including the combined contributions of metabolic heat, environmental factors, and clothing or personal protective equipment)