US CODE: Title 39,5003. Establishment of post roads

§ 5003. Establishment of post roads

The following are post roads:

(1) the waters of the United States, during the time the mail is carried thereon;

(2) railroads or parts of railroads and air routes in operation;

(3) canals, during the time the mail is carried thereon;

(4) public roads, highways, and toll roads during the time the mail is carried thereon; and

(5) letter-carrier routes established for the collection and delivery of mail.

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