PUBLIC LAWS-CH. 601 -JUNE 23, 1938 Terms and condi- tions of permit. Authority to modi- fy, suspend, or revoke. Transfer of permit. Tariffs of air car- riers. Filing of tariffs re- quired. Observance of tar- iffs; rebating pro- hibited. Passes, etc. Terms and Conditions of Permit (f) The Authority may prescribe the duration of any permit and may attach to such permit such reasonable terms, conditions, or limitations as, in its judgment, the public interest may require. Authority to Modify, Suspend, or Revoke (g) Any permit issued under the provisions of this section may, after notice and hearing, be altered, modified, amended, suspended, canceled, or revoked by the Authority whenever it finds such action to be in the public interest. Any interested person may file with the Authority a protest or memorandum in support of or in opposition to the alteration, modification, amendment, suspension, cancelation, or revocation of a permit. Transfer of Permit (h) No permit may be transferred unless such transfer is approved by the Authority as being in the public interest. TARIFFS OF AIR CARRIERS Filing of Tariffs Required SEC. 403. (a) Every air carrier and every foreign air carrier shall file with the Authority, and print, and keep open to public inspection, tariffs showing all rates, fares, and charges for air transportation between points served by it, and between points served by it and points served by any other air carrier or foreign air carrier when through service and through rates shall have been established, and showing to the extent required by regulations of the Authority, all classifications, rules, regulations, practices, and services in connection with such air transportation. Tariffs shall be filed, posted, and pub- lished in such form and manner, and shall contain such information, as the Authority shall by regulation prescribe; and the Authority is empowered to reject any tariff so filed which is not consistent with this section and such regulations. Any tariff so rejected shall be void. The rates, fares, and charges shown in any tariff shall be stated in terms of lawful money of the United States, but such tariffs may also state rates, fares, and charges in terms of currencies other than lawful money of the United States, and may, in the case of foreign air transportation, contain such information as may be required under the laws of any country in or to which an air carrier or foreign air carrier is authorized to operate. Observance of Tariffs; Rebating Prohibited (b) No air carrier or foreign air carrier shall charge or demand or collect or receive a greater or less or different compensation for air transportation, or for any service in connection therewith, than the rates, fares, and charges specified in its currently effective tariffs; and no air carrier or foreign air carrier shall, in any manner or by any device, directly or indirectly, or through any agent or broker, or otherwise, refund or remit any portion of the rates, fares, or charges so specified, or extend to any person any privileges or facilities, with respect to matters required by the Authority to be specified in such tariffs, except those specified therein. Nothing in this Act shall pro- hibit such air carriers or foreign air carriers, under such terms and conditions as the Authority may prescribe, from issuing or inter- changing tickets or passes for free or reduced-rate transportation to their directors, officers, and employees and their immediate families; witnesses and attorneys attending any legal investigation in which 992 [52 STAT.
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