39 USC § 5601
Sea post service
through Public Law 119-27, except Public Law 119-21
The Postal Service may maintain sea post service on ocean vessels conveying mail to and from the United States.
Statutory Notes and Related Subsidiaries
Effective Date
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.