14 CFR § 257.6 - Effective and compliance dates.

---
identifier: "/us/cfr/t14/s257.6"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 257.6 - Effective and compliance dates."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "257.6"
section_name: "Effective and compliance dates."
chapter_name: "OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS)"
subchapter_number: "A"
subchapter_name: "ECONOMIC REGULATIONS"
part_number: "257"
part_name: "DISCLOSURE OF CODE-SHARING ARRANGEMENTS AND LONG-TERM WET LEASES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 40113(a) and 41712."
regulatory_source: "64 FR 12851, Mar. 15, 1999, unless otherwise noted."
cfr_part: "257"
---


# 257.6 Effective and compliance dates.

(a) This Part is effective as of August 25, 1999.

(b) Compliance with the following sections is mandatory as of August 25, 1999:

(1) § 257.1, § 257.2, § 257.3, § 257.4, § 257.5(d), and § 257.6.

(2) § 257.5(b) to the extent that it requires sellers of air transportation to give consumers oral notice before booking transportation involving a code-share arrangement

(i) Of the fact that the selling carrier is not the transporting carrier and

(ii) Of the transporting carrier's identity (as shown by its two-letter designator code in CRS displays).

(c) Compliance with the following sections is mandatory as of March 15, 2000:

(1) § 257.5(a) and § 257.5(c) in their entirety.

(2) § 257.5(b) insofar as it requires sellers of air transportation to give consumers

(i) Oral notice before booking transportation involving a code-share arrangement of the transporting carrier's corporate name and any other name under which the service is held out to the public and

(ii) The same disclosures for long-term wet leases as for code-sharing arrangements.

[64 FR 46821, Aug. 27, 1999]