Based on title 18, U.S.C., 1940 ed., § 351 (Mar. 4, 1909, ch. 321, § 221, 35 Stat. 1132).

Reference to persons causing or procuring was omitted as unnecessary in view of definition of “principal” in 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 $100” in second par.

1970—Pub. L. 91–375 substituted “a duly authorized officer of the Postal Service” for “Postmaster General” in first par.

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.