14 CFR § 221.500 - Transmission of electronic tariffs to subscribers.

---
identifier: "/us/cfr/t14/s221.500"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 221.500 - Transmission of electronic tariffs to subscribers."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "221.500"
section_name: "Transmission of electronic tariffs to subscribers."
chapter_name: "OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS)"
subchapter_number: "A"
subchapter_name: "ECONOMIC REGULATIONS"
part_number: "221"
part_name: "TARIFFS"
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. 40101, 40109, 40113, 46101, 46102, chapter 411, chapter 413, chapter 415 and chapter 417, subchapter I."
regulatory_source: "64 FR 40657, July 27, 1999, unless otherwise noted."
cfr_part: "221"
---


# 221.500 Transmission of electronic tariffs to subscribers.

(a) Each filer that files an electronic tariff under this subpart shall make available to any person so requesting, a subscription service meeting the terms of paragraph (b) of this section.

(b) Under the required subscription service, remote access shall be allowed to any subscriber to the on-line tariff database, including access to the justification required by § 221.205. The subscription service shall not preclude the offering of additional services by the filer or its agent.

(c) The filer at its option may establish a charge for providing the required subscription service to subscribers: Provided that the charge may not exceed a reasonable estimate of the added cost of providing the service.

(d) Each filer shall provide to any person upon request, a copy of the machine-readable data (raw tariff data) of all daily transactions made to its on-line tariff database. The terms and prices for such value-added service may be set by the filer: Provided that such terms and prices shall be non-discriminatory, *i.e.,* that they shall be substantially equivalent for all similarly-situated persons.