Site Feedback

Title 14

Displaying title 14, up to date as of 7/14/2026. Title 14 was last amended 7/06/2026.
eCFR Content

The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.

Learn more about the eCFR, its status, and the editorial process.

Title 14Aeronautics and SpacePart / Section
Chapter IFederal Aviation Administration, Department of Transportation1 – 199
Subchapter FAir Traffic and General Operating Rules89 – 109
Part 91General Operating and Flight Rules91.1 – 91.1721
Subpart IOperating Noise Limits91.801 – 91.899
§ 91.801Applicability: Relation to part 36.
§ 91.803Part 125 operators: Designation of applicable regulations.
§ 91.805Final compliance: Subsonic airplanes.
§§ 91.807-91.813 [Reserved]
§ 91.815Agricultural and fire fighting airplanes: Noise operating limitations.
§ 91.817Civil aircraft sonic boom.
§ 91.818Special flight authorization to exceed Mach 1.
§ 91.819Civil supersonic airplanes that do not comply with part 36.
§ 91.821Civil supersonic airplanes: Noise limits.
§§ 91.823-91.849 [Reserved]
§ 91.851Definitions.
§ 91.853Final compliance: Civil subsonic airplanes.
§ 91.855Entry and nonaddition rule.
§ 91.857Stage 2 operations outside of the 48 contiguous United States.
§ 91.858Special flight authorizations for non-revenue Stage 2 operations.
§ 91.859Modification to meet Stage 3, Stage 4, or Stage 5 noise levels.
§ 91.861Base level.
§ 91.863Transfers of Stage 2 airplanes with base level.
§ 91.865Phased compliance for operators with base level.
§ 91.867Phased compliance for new entrants.
§ 91.869Carry-forward compliance.
§ 91.871Waivers from interim compliance requirements.
§ 91.873Waivers from final compliance.
§ 91.875Annual progress reports.
§ 91.877Annual reporting of Hawaiian operations.
§§ 91.879-91.880 [Reserved]
§ 91.881Final compliance: Civil subsonic jet airplanes weighing 75,000 pounds or less.
§ 91.883Special flight authorizations for jet airplanes weighing 75,000 pounds or less.
§§ 91.884-91.899 [Reserved]