Leading the World in Supersonic Flight

Executive Order 14304 of June 6, 2025

Leading the World in Supersonic Flight

By the authority vested in me as President by the
Constitution and the laws of the United States of
America, it is hereby ordered:

Section 1. Purpose. The United States stands at the
threshold of a bold new chapter in aerospace
innovation. For more than 50 years, outdated and overly
restrictive regulations have grounded the promise of
supersonic flight over land, stifling American
ingenuity, weakening our global competitiveness, and
ceding leadership to foreign adversaries. Advances in
aerospace engineering, materials science, and noise
reduction now make supersonic flight not just possible,
but safe, sustainable, and commercially viable. This
order begins a historic national effort to reestablish
the United States as the undisputed leader in high-
speed aviation. By updating obsolete standards and
embracing the technologies of today and tomorrow, we
will empower our engineers, entrepreneurs, and
visionaries to deliver the next generation of air
travel, which will be faster, quieter, safer, and more
efficient than ever before.

Sec. 2. Regulatory Reform for Supersonic Flight. (a)
The Administrator of the Federal Aviation
Administration (FAA) shall take the necessary steps,
including through rulemaking, to repeal the prohibition
on overland supersonic flight in 14 CFR 91.817 within
180 days of the date of this order and establish an
interim noise-based certification standard, making any
modifications to 14 CFR 91.818 as necessary, as
consistent with applicable law. The Administrator of
the FAA shall also take immediate steps to repeal 14
CFR 91.819 and 91.821, which will remove additional
regulatory barriers that hinder the advancement of
supersonic aviation technology in the United States.

    (b) Within 18 months of the date of this order, the
Administrator of the FAA shall issue a Notice of
Proposed Rulemaking (NPRM) to establish a standard for
supersonic aircraft noise certification under 14 CFR
Part 36 and amend 14 CFR 91.817. The proposed rule
shall define acceptable noise thresholds for takeoff,
landing, and en-route supersonic operation based on
operational testing and research, development, testing,
and evaluation (RDT&E) data as identified in subsection
3(a) of this order, and considering community
acceptability, economic reasonableness, and
technological feasibility. The proposed rule shall
further specify a process for periodic review and
update of the rule to reflect future advances in
aircraft noise reduction technology. Any final rule in
connection with the NPRM shall be issued within 24
months of the date of this order.

Sec. 3. Advancing Supersonic Research and Development.
(a) The Director of the Office of Science and
Technology Policy (OSTP) shall, in consultation with
the heads of relevant executive departments and
agencies (agencies), including the Secretary of
Defense, the Secretary of Commerce, the Secretary of
Transportation, and the Administrator of the National
Aeronautics and Space Administration, coordinate
supersonic research and development through the
National Science and Technology Council, with the goal
of:

(i) identifying RDT&E needs for regulatory development, commercial
viability, and operational integration of supersonic aircraft into the
National Airspace System;

(ii) coordinating federally funded RDT&E and industry-led testing of
supersonic technologies at Federal test sites; and

(iii) collecting and sharing the results of such RDT&E in a manner suitable
for informing domestic regulatory development and international science and
technology engagement on civil supersonic matters.

    (b) The Director of OSTP shall provide the results
of the coordinated efforts in subsection (a) of this
section to the Administrator of the FAA to inform the
development of future procedures, regulations, and
policies, including those related to the certification
of civil supersonic aircraft and noise and
environmental standards called for in this section 3.

Sec. 4. Promoting International Engagement on Civil
Supersonic Flight Regulations. (a) The Secretary of
Transportation, acting through the Administrator of the
FAA, and in consultation with the Director of OSTP and
the heads of other agencies as considered appropriate
by the Director of OSTP, shall engage the International
Civil Aviation Organization and key foreign partners to
seek global alignment regarding supersonic regulatory
approaches.

    (b) The Administrator of the FAA, under the
supervision of the Secretary of Transportation and in
coordination with the Secretary of State, shall seek to
secure bilateral aviation safety agreements with
foreign aviation authorities as necessary for the safe
international operation of supersonic aircraft.

Sec. 5. General Provisions. (a) Nothing in this order
shall be construed to impair or otherwise affect:

(i) the authority granted by law to an executive department or agency, or
the head thereof; or

(ii) the functions of the Director of the Office of Management and Budget
relating to budgetary, administrative, or legislative proposals.

    (b) This order shall be implemented consistent with
applicable law and subject to the availability of
appropriations.
    (c) This order is not intended to, and does not,
create any right or benefit, substantive or procedural,
enforceable at law or in equity by any party against
the United States, its departments, agencies, or
entities, its officers, employees, or agents, or any
other person.
    (d) The costs for publication of this order shall
be borne by the Federal Aviation Administration.

    (Presidential Sig.)

THE WHITE HOUSE,

    June 6, 2025.