14 CFR 221.203 - Unique rule numbers required.
(a) Each “bundled” and “unbundled” normal economy fare applicable to foreign air transportation shall bear a unique rule number.
(b) The unique rule numbers for the fares specified in this section shall be set by mutual agreement between the filer and the Department prior to the implementation of any electronic filing system.
Title 14 published on 2015-11-17.
No entries appear in the Federal Register after this date, for 14 CFR Part 221.