39 USC § 5403
Fines
July 4, 2020
The Postal Service may impose or remit fines on carriers transporting mail by air on routes extending beyond the borders of the United States for—
(1) unreasonable or unnecessary delay to mail; and
(2) other delinquencies in the transportation of the mail.
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.