Based on title 18, U.S.C., 1940 ed., § 321a (May 7, 1934, ch. 220, § 2, 48 Stat. 667).

Reference to persons aiding or assisting was struck out as unnecessary since such persons are made principals by section 2 of this title.

Minor verbal changes were made.

1994—Pub. L. 103–322 substituted “fined under this title” for “fined not more than $300”.

1970—Pub. L. 91–375 substituted “Postal Service” for “Postmaster General”.

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.