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REGULATION — LEGALLY BINDING

§ 91.821 Civil supersonic airplanes: Noise limits

14 CFR Part 91 — Subpart I—Operating Noise Limits

Official text — 14 CFR § 91.821

REGULATION — LEGALLY BINDING

Except for Concorde airplanes having flight time before January 1, 1980, no person may operate in the United States, a civil supersonic airplane that does not comply with Stage 2 noise limits of part 36 in effect on October 13, 1977, using applicable trade-off provisions.

Reproduced from the eCFR. Text as amended through 2026-07-31. Verify against the official source before relying on it operationally.

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Yes — this is regulatory text and is legally binding.

Text published in the Code of Federal Regulations. Regulations are legally binding on pilots and operators.

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