Pub. L. 86-682, tit. 39, pt. VI, ch. 95, sec. 6203
Authorization of service by railroad
§ 6203. Authorization of service by railroad (a) The Postmaster General may establish railroad mail routes and authorize mail transportation service thereon. He may transport equipment and supplies of the Department as mail thereon. (b) A railroad shall transport mail including equipment and supplies of the Department offered for transportation by the United States in the manner, under the conditions, and with the service prescribed by the Postmaster General. It is entitled to receive fair and reasonable compensation for the transportation and services connected there with. (c) The Postmaster General shall determine the trains upon which mail shall be transported. (d) A railroad shall transport with due speed, on any train it operates, such mail, including equipment and supplies of the Department, as the Postmaster General directs. (e) A railroad engaged in the transportation of mail shall transport on any train it operates upon exhibiting their credentials and without extra charge therefor— (1) persons in charge of the mail when on duty and traveling to and from duty; and (2) accredited agents and officers, including postal inspectors, of the Department while traveling on official business.