U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 14Chapter IPart 189 - PART 189—USE OF FEDERAL AVIATION ADMINISTRATION COMMUNICATIONS SYSTEM
View all text of Part 189 [§ 189.1 - § 189.5]
§ 189.1 - Scope.

This part describes the kinds of messages that may be transmitted or relayed by FAA Flight Service Stations.

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