Subpart I - OPERATING NOISE LIMITS
- Section 91.801 - Applicability: Relation to part 36
- Section 91.803 - Part 125 operators: Designation of applicable regulations
- Section 91.805 - Final compliance: Subsonic airplanes
- Section 91.807-91.813 - Reserved
- Section 91.815 - Agricultural and fire fighting airplanes: Noise operating limitations
- Section 91.817 - Civil aircraft sonic boom
- Section 91.818 - Special flight authorization to exceed Mach 1
- Section 91.819 - Civil supersonic airplanes that do not comply with part 36
- Section 91.821 - Civil supersonic airplanes: Noise limits
- Section 91.823-91.849 - Reserved
- Section 91.851 - Definitions
- Section 91.853 - Final compliance: Civil subsonic airplanes
- Section 91.855 - Entry and nonaddition rule
- Section 91.857 - Stage 2 operations outside of the 48 contiguous United States
- Section 91.858 - Special flight authorizations for non-revenue Stage 2 operations
- Section 91.859 - Modification to meet Stage 3, Stage 4, or Stage 5 noise levels
- Section 91.861 - Base level
- Section 91.863 - Transfers of Stage 2 airplanes with base level
- Section 91.865 - Phased compliance for operators with base level
- Section 91.867 - Phased compliance for new entrants
- Section 91.869 - Carry-forward compliance
- Section 91.871 - Waivers from interim compliance requirements
- Section 91.873 - Waivers from final compliance
- Section 91.875 - Annual progress reports
- Section 91.877 - Annual reporting of Hawaiian operations
- Section 91.879-91.880 - Reserved
- Section 91.881 - Final compliance: Civil subsonic jet airplanes weighing 75,000 pounds or less
- Section 91.883 - Special flight authorizations for jet airplanes weighing 75,000 pounds or less
- Section 91.884-91.899 - Reserved