Mail messenger and contract motor vehicle service

§ 6403. Mail messenger and contract motor vehicle service (a) Subject to subsection (a)(5) of section 6402 of this title, the Postmaster General may enter into informal agreements for mail messenger service without term or into formal contracts for motor vehicle service for the carriage of mail in connection with transportation service in cases where, by law or the regulations of the Department, rail, air, water and other carriers are not required to deliver into and take from postal facilities the mails carried by them. The Postmaster General may use such service as transfer service between such points as he deems necessary including service within, between and among carriers, depots, airports, piers, post offices, branch post offices or stations or other postal facilities and over bridges and ferries. (b) Postmasters, officers, and employees, may enter into agreements for the performance of mail messenger service when the Postmaster General determines that the performance of the service will not interfere with their regular duties or with the operations of the postal service. Except as provided in subsection (c) of this section the total amount payable under an agreement may not exceed $900 in any one year. (c) Special delivery messengers at post offices of all classes may enter into agreements for mail messenger service without regard to the amount payable in any one year.