The Federal Aviation Administration issued a proposal on June 30, 2026 [2], to lift the ban on civil supersonic flights over land.
This move marks a significant shift in aviation policy that could enable ultra-fast travel within the continental U.S. By replacing a blanket ban with specific noise limits, the FAA aims to accommodate a new generation of aircraft designed to minimize the disruptive sonic booms associated with breaking the sound barrier.
The current restriction on civil supersonic flight over land has been in place for approximately 50 years [1]. The original 1973 rule was designed to protect populations from the intense noise pollution generated by aircraft traveling faster than the speed of sound.
Advances in aviation technology now make a rule change feasible, the FAA said. The agency cited the development of quieter supersonic transport, specifically highlighting NASA’s X-59 Quiet Supersonic Transport demonstrator. This aircraft is designed to reduce the sonic boom to a level that would not be disruptive to people on the ground [4, 5].
The notice of proposed rulemaking suggests that instead of a total prohibition, the FAA would implement noise-based limits [3]. This framework would allow aircraft that meet strict acoustic standards to operate over the U.S. interior, while still barring older or louder aircraft that create significant noise disturbances.
If the proposal is finalized, it would open the door for commercial developers to certify and operate supersonic passenger jets on domestic routes. The transition from a date-based ban to a performance-based standard aligns with current efforts to modernize the national airspace for next-generation propulsion, and aerodynamics [4].
“The FAA has issued a notice of proposed rulemaking to lift the 1973 ban on civil supersonic flights over land.”
The shift from a categorical ban to a noise-based standard transforms the regulatory environment from a legal barrier into a technical challenge. By tying flight permissions to decibel levels rather than speed, the FAA is incentivizing the aerospace industry to prioritize acoustic engineering. This creates a viable commercial pathway for supersonic travel in the U.S., provided that manufacturers can prove their aircraft do not disturb the ground population.
