An air carrier, foreign air carrier, or ticket agent may not—
(1) charge or receive compensation for foreign air transportation that is different from the price specified in the tariff of the carrier that is in effect for that transportation;
(2) refund or remit any part of the price specified in the tariff; or
(3) extend to any person a privilege or facility, related to a matter required by the Secretary of Transportation to be specified in a tariff for foreign air transportation, except as specified in the tariff.
A person may not knowingly—
(1) pay compensation for foreign air transportation of property that is different from the price specified in the tariff in effect for that transportation; or
solicit, accept, or receive—
(A) a refund or remittance of any part of the price specified in the tariff; or
(B) a privilege or facility, related to a matter required by the Secretary to be specified in a tariff for foreign air transportation of property, except as specified in the tariff.
(Pub. L. 103–272, § 1(e), July 5, 1994, 108 Stat. 1138.)