Based on title 18, U.S.C., 1940 ed., § 314 (Mar. 4, 1909, ch. 321, § 191, 35 Stat. 1125).

Reference to persons aiding, causing or assisting was omitted. Such persons are principals under section 2 of this title.

Mandatory punishment provision was rephrased in the alternative.

Minor changes were made in phraseology.

1994—Pub. L. 103–322 substituted “fined under this title” for “fined not more than $500” in last par.

1970—Pub. L. 91–375 inserted “or the Postal Service” after “Post Office Department” in first and third pars.

Amendment by Pub. L. 91–375 effective within 1 year after Aug. 12, 1970, on date established therefor by Board of Governors of United States Postal Service and published by it in Federal Register, see section 15(a) of Pub. L. 91–375, set out as an Effective Date note preceding section 101 of Title 39, Postal Service.