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Proposed rule

Enabling Supersonic Overland Flight

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register July 2, 2026. Document 2026-13440. Updated Nov. 8, 2026.

What it does

This proposal would advance the United States' leadership in next-generation aviation by replacing the longstanding prohibition on civil supersonic flight over land with a modern, performance-based regulatory framework. Consistent with national policy set forth by the Executive Order of June 6, 2025, Leading the World in Supersonic Flight, this action would enable the safe, efficient, and commercially viable operation of civil supersonic aircraft in the United States. Current regulations prohibit flight operations of civil aircraft at a true flight Mach number greater than 1 in the U.S., except under the conditions and limitations of an operation-specific authorization from the Administrator, to protect the public from sonic boom. FAA has determined the general ban on civil supersonic flight is outdated and no longer appropriate due to advancements in technology, flight techniques that prevent sonic booms from reaching the surface, and increased interest in civil supersonic flight. FAA proposes to repeal this outdated and unnecessary prohibition and establish a corresponding interim noise-based certification standard to allow supersonic flights without an operation-specific special authorization clearing the way for next-generation supersonic flight. This rule removes regulatory barriers, provides clear pathways for testing and early commercial operations, and positions the United States to serve as the leader in setting global standards for supersonic flight. These actions will ensure that the United States leads the world in the safe, lawful, and rapid development and deployment of next-generation supersonic aviation.

The Federal Aviation Administration's summary, as published in the Federal Register.

What it would change

2 parts of Title 14 of the Code of Federal Regulations:

14 CFR 1, 14 CFR 91

Before this

No earlier Federal Register document under regulation identifier 2120-AM15 since Jan. 1, 2025.

What happens next and when

Send comments on or before August 17, 2026.

The agency's dates, word for word.

Document number2026-13440
ActionNotice of proposed rulemaking (NPRM).
AgenciesTransportation Department; Federal Aviation Administration
PublishedJuly 2, 2026
Comments closeAug. 17, 2026
Regulation identifier (RIN)2120-AM15
DocketFAA-2026-6935
Significant (marked in the Federal Register)Yes

Source: the Federal Register (public domain). The document in the Federal Register