The FAA has formally proposed repealing the 1973 ban on civil supersonic flight over the continental United States, replacing the Mach 1 speed limit with a performance-based noise standard requiring surface overpressure below 0.11 psf. This shift, mandated by Executive Order 14304, eliminates the need for case-by-case Special Flight Authorizations for operators proving compliance via Mach cutoff or boomless cruise techniques. Manufacturers like Boom Supersonic and Hermeus gain clear guidance to finalize Overture and Quarterhorse designs for commercial service, though landing and takeoff noise rules remain pending in a second proposal targeted for late 2026. Finalization of both rules is expected by mid-2027, with realistic commercial operations likely emerging around 2029–2030.