The Postal Service may maintain sea post service on ocean vessels conveying mail to and from the United States.
( Pub. L. 91–375, Aug. 12, 1970, 84 Stat. 773 .)
Section effective July 1, 1971, pursuant to Resolution No. 71–9 of the Board of Governors. See section 15(a) of Pub. L. 91–375, set out as a note preceding section 101 of this title.