Code of Federal Regulations > Title 14 > Chapter I > Part 121 > Subpart E - Subpart E—Approval of Routes: Domestic and Flag Operations

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

§ 121.91 - Applicability.

§ 121.93 - Route requirements: General.

§ 121.95 - Route width.

§ 121.97 - Airports: Required data.

§ 121.99 - Communications facilities—domestic and flag operations.

§ 121.101 - Weather reporting facilities.

§ 121.103 - En route navigation facilities.

§ 121.105 - Servicing and maintenance facilities.

§ 121.106 - ETOPS Alternate Airport: Rescue and fire fighting service.

§ 121.107 - Dispatch centers.