Pub. L. 82-188, tit. VI, sec. 605

Sec. 605. Except for the automobiles officially assigned to the Secretary of State, the Attorney General, the Secretary of Commerce, automobiles assigned for operation by the Federal Bureau of Investigation and one-half of the chauffeur-driven automobiles in operation in the Departments on July 1, 1951, no part of any appropriation contained in this Act shall be used to pay the compensation of any civilian employee of the Government in the District of Columbia whose primary duties consist of acting as chauffeur of any Government-owned passenger motor vehicle (other than a bus or ambulance), unless such appropriation is specifically authorized to be used for paying the compensation of employees performing such duties.