Code of Federal Regulations > Title 14 > Chapter I > Part 121 > Subpart U - Subpart U—Dispatching and Flight Release Rules

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Nov 22, 2025

§ 121.591 - Applicability.

§ 121.593 - Dispatching authority: Domestic operations.

§ 121.595 - Dispatching authority: Flag operations.

§ 121.597 - Flight release authority: Supplemental operations.

§ 121.599 - Familiarity with weather conditions.

§ 121.601 - Aircraft dispatcher information to pilot in command: Domestic and flag operations.

§ 121.603 - Facilities and services: Supplemental operations.

§ 121.605 - Airplane equipment.

§ 121.607 - Communication and navigation facilities: Domestic and flag operations.

§ 121.609 - Communication and navigation facilities: Supplemental operations.

§ 121.611 - Dispatch or flight release under VFR.

§ 121.613 - Dispatch or flight release under IFR or over the top.

§ 121.615 - Dispatch or flight release over water: Flag and supplemental operations.

§ 121.617 - Alternate airport for departure.

§ 121.619 - Alternate airport for destination: IFR or over-the-top: Domestic operations.

§ 121.621 - Alternate airport for destination: Flag operations.

§ 121.623 - Alternate airport for destination: IFR or over-the-top: Supplemental operations.

§ 121.624 - ETOPS Alternate Airports.

§ 121.625 - Alternate Airport weather minima.

§ 121.627 - Continuing flight in unsafe conditions.

§ 121.628 - Inoperable instruments and equipment.

§ 121.629 - Operation in icing conditions.

§ 121.631 - Original dispatch or flight release, redispatch or amendment of dispatch or flight release.

§ 121.633 - Considering time-limited systems in planning ETOPS alternates.

§ 121.635 - Dispatch to and from refueling or provisional airports: Domestic and flag operations.

§ 121.637 - Takeoffs from unlisted and alternate airports: Domestic and flag operations.

§ 121.639 - Fuel supply: All domestic operations.

§ 121.641 - Fuel supply: Nonturbine and turbo-propeller-powered airplanes: Flag operations.

§ 121.643 - Fuel supply: Nonturbine and turbo-propeller-powered airplanes: Supplemental operations.

§ 121.645 - Fuel supply: Turbine-engine powered airplanes, other than turbo propeller: Flag and supplemental operations.

§ 121.646 - En-route fuel supply: flag and supplemental operations.

§ 121.647 - Factors for computing fuel required.

§ 121.649 - Takeoff and landing weather minimums: VFR: Domestic operations.

§ 121.651 - Takeoff and landing weather minimums: IFR: All certificate holders.

§ 121.652 - Landing weather minimums: IFR: All certificate holders.

§ 121.653 - [Reserved]

§ 121.655 - Applicability of reported weather minimums.

§ 121.657 - Flight altitude rules.

§ 121.659 - Initial approach altitude: Domestic and supplemental operations.

§ 121.661 - Initial approach altitude: Flag operations.

§ 121.663 - Responsibility for dispatch release: Domestic and flag operations.

§ 121.665 - Load manifest.

§ 121.667 - Flight plan: VFR and IFR: Supplemental operations.