# 14 C.F.R. § 91.819 (2026): Civil supersonic airplanes that do not comply with part 36

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_819

## Section

- **Citation:** 14 C.F.R. § 91.819 (2026)
- **Heading:** Civil supersonic airplanes that do not comply with part 36
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 14 CFR: Aeronautics and Space / Chapter I: FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION / Part 91: GENERAL OPERATING AND FLIGHT RULES / Subpart I: Operating Noise Limits / § 91.819: § 91.819   Civil supersonic airplanes that do not comply with part 36.

## Text

(a)
Applicability.
This section applies to civil supersonic airplanes that have not been shown to comply with the Stage 2 noise limits of part 36 in effect on October 13, 1977, using applicable trade-off provisions, and that are operated in the United States, after July 31, 1978.
(b)
Airport use.
Except in an emergency, the following apply to each person who operates a civil supersonic airplane to or from an airport in the United States:
(1) Regardless of whether a type design change approval is applied for under part 21 of this chapter, no person may land or take off an airplane covered by this section for which the type design is changed, after July 31, 1978, in a manner constituting an “acoustical change” under § 21.93 unless the acoustical change requirements of part 36 are complied with.
(2) No flight may be scheduled, or otherwise planned, for takeoff or landing after 10 p.m. and before 7 a.m. local time.

## Nearby sections

- [14 C.F.R. § 91.801 (2026) § 91.801   Applicability: Relation to part 36.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_801.md)
- [14 C.F.R. § 91.803 (2026) § 91.803   Part 125 operators: Designation of applicable regulations.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_803.md)
- [14 C.F.R. § 91.805 (2026) § 91.805   Final compliance: Subsonic airplanes.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_805.md)
- [14 C.F.R. § 91.815 (2026) § 91.815   Agricultural and fire fighting airplanes: Noise operating limitations.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_815.md)
- [14 C.F.R. § 91.817 (2026) § 91.817   Civil aircraft sonic boom.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_817.md)
- [14 C.F.R. § 91.818 (2026) § 91.818   Special flight authorization to exceed Mach 1.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_818.md)
- [14 C.F.R. § 91.819 (2026) § 91.819   Civil supersonic airplanes that do not comply with part 36.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_819.md)
- [14 C.F.R. § 91.821 (2026) § 91.821   Civil supersonic airplanes: Noise limits.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_821.md)
- [14 C.F.R. § 91.851 (2026) § 91.851   Definitions.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_851.md)
- [14 C.F.R. § 91.853 (2026) § 91.853   Final compliance: Civil subsonic airplanes.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_853.md)
- [14 C.F.R. § 91.855 (2026) § 91.855   Entry and nonaddition rule.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_855.md)
- [14 C.F.R. § 91.857 (2026) § 91.857   Stage 2 operations outside of the 48 contiguous United States.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_857.md)
- [14 C.F.R. § 91.858 (2026) § 91.858   Special flight authorizations for non-revenue Stage 2 operations.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_858.md)
- [14 C.F.R. § 91.859 (2026) § 91.859   Modification to meet Stage 3, Stage 4, or Stage 5 noise levels.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_859.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T14_P91_S91_819. Check the current official text before relying on it. Not legal advice.