FAA Considers Revising US Supersonic Flight Ban to Emphasize Noise Limits

Regulators have introduced a proposal to modify the long-standing prohibition on supersonic flight over the continental United States. The initiative seeks to replace the existing speed-based restriction with a framework that would evaluate aircraft based on the noise they generate.

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The ban, instituted 53 years ago, was originally motivated by concerns over the acoustic impact of aircraft traveling faster than the speed of sound. Sonic booms produced by supersonic aircraft have been described as “deafening” and comparable to thunder. Historical incidents include the distinctive double-bang of the Concorde and reports from the 1960s that supersonic military jets shattered windows on the ground. These effects led to a nationwide prohibition on supersonic operations across the continental United States.

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The existing prohibition is framed as a speed restriction, not a noise standard. Under current rules, any supersonic aircraft—regardless of its acoustic footprint—would be barred from crossing the continental United States.

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• The prohibition has been in effect for 53 years.

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• Concorde’s double-bang was noted as a primary source of ground-level noise.

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• Supersonic military aircraft in the 1960s shattered windows on the ground.

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The Federal Aviation Administration (FAA) is planning a move to limit noise rather than speed for supersonic aircraft operating over the continental United States. The agency’s approach reflects a shift from a speed-based ban to a noise-focused regulatory framework.

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The original speed-based ban limited the Concorde’s ability to operate transcontinental routes within the United States, reducing its commercial viability. By moving the regulatory focus to noise, the FAA’s proposal could allow future supersonic aircraft that meet noise expectations to operate over the continental United States. If such aircraft are permitted, they could restore commercial supersonic service and improve the economic case for operators.

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The proposal does not disclose specific noise thresholds, testing protocols, or an implementation timeline. The source also lacks details on how compliance will be evaluated or whether interim exemptions will be considered. These omissions leave uncertainty about the practical pathway for future supersonic operations.

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• 1960s: Supersonic military aircraft shattered windows on the ground, illustrating acoustic hazards.

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• 2026: Regulators propose revising the 53-year-old ban on supersonic flight over the continental United States.

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The FAA intends to develop a regulatory approach that limits noise rather than speed for supersonic aircraft over the continental United States. Specific criteria, implementation timelines, and procedural steps have not been disclosed.

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