[Congressional Bills 119th Congress]
[From the U.S. Government Publishing Office]
[S. 2503 Introduced in Senate (IS)]

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119th CONGRESS
  1st Session
                                S. 2503

    To require all aircraft to be equipped with Automatic Dependent 
 Surveillance-Broadcast In, to improve aviation safety, and for other 
                               purposes.


_______________________________________________________________________


                   IN THE SENATE OF THE UNITED STATES

                             July 29, 2025

   Mr. Cruz (for himself, Mr. Moran, Mrs. Blackburn, Mr. Budd, Mrs. 
     Capito, Mr. Marshall, Mr. Schmitt, Mr. Sheehy, and Mr. Young) 
introduced the following bill; which was read twice and referred to the 
           Committee on Commerce, Science, and Transportation

_______________________________________________________________________

                                 A BILL


 
    To require all aircraft to be equipped with Automatic Dependent 
 Surveillance-Broadcast In, to improve aviation safety, and for other 
                               purposes.

    Be it enacted by the Senate and House of Representatives of the 
United States of America in Congress assembled,

SECTION 1. SHORT TITLE.

    This Act may be cited as the ``Rotorcraft Operations Transparency 
and Oversight Reform Act'' or the ``ROTOR Act''.

SEC. 2. REVISION TO EXCEPTION FOR ADS-B OUT TRANSMISSION.

    (a) Rulemaking.--
            (1) In general.--Not later than 1 year after the date of 
        enactment of this section, the Administrator of the Federal 
        Aviation Administration (in this Act referred to as the 
        ``Administrator'') shall issue or revise regulations to clarify 
        that, with respect to the exception described in section 
        91.225(f)(1) of title 14, Code of Federal Regulations, the term 
        ``sensitive government mission'' shall not include any 
        proficiency evaluation or training mission operated within the 
        lateral boundaries of the surface area of Class B or Class C 
        airspace, unless such operation is for a national security 
        event.
            (2) Report.--If the Administrator fails to issue or revise 
        regulations pursuant to paragraph (1), the Administrator shall, 
        within 30 days, submit to the Committee on Commerce, Science, 
        and Transportation of the Senate and the Committee on 
        Transportation and Infrastructure of the House of 
        Representatives a report on the status of such regulations, 
        including the reasons that the Administrator has failed to 
        issue or revise such regulations.
    (b) Guidance on Use of Technology Other Than ADS-B.--Not later than 
180 days after the date of enactment of this section, the Administrator 
shall issue guidance to clarify that, to the extent practicable, all 
aircraft operating for purposes of national defense, homeland security 
intelligence, or law enforcement should utilize Traffic Information 
Services-Broadcast (``TIS-B'') and the Traffic Alert and Collision 
Avoidance System (``TCAS'').
    (c) Reports.--
            (1) To the administrator.--Not later than 90 days after the 
        date of enactment of this section, each agency required to 
        operate Automatic Dependent Surveillance-Broadcast Out (in this 
        Act referred to as ``ADS-B Out'') in transmit mode in 
        accordance with section 91.225 of such title 14 shall submit to 
        the Administrator, on a quarterly basis until the date 
        described in paragraph (3), a report that includes--
                    (A) an attestation that such operations are 
                regularly transmitting ADS-B Out and are conducted with 
                proper consideration to aviation safety; and
                    (B) a summary of operations in which the ADS-B Out 
                equipment is not in transmit mode, including the date, 
                time, duration, and mission type of such operations.
            (2) To congress.--
                    (A) In general.--Not later than 180 days after the 
                date of enactment of this section, and biannually 
                thereafter until the date described in paragraph (3), 
                the Administrator shall submit to the Committee on 
                Commerce, Science, and Transportation of the Senate and 
                the Committee on Transportation and Infrastructure of 
                the House of Representatives a report on the frequency 
                and nature of the ADS-B Out exceptions granted to 
                Federal, State, local, and tribal agencies under 
                section 91.225(f)(1) of title 14, Code of Federal 
                Regulations. Such report shall include--
                            (i) aggregated data on the operations in 
                        which ADS-B Out equipment is not in transmit 
                        mode by each agency described in paragraph (1); 
                        and
                            (ii) a determination from the Administrator 
                        whether such operations jeopardize aviation 
                        safety.
                    (B) Special notification.--If the Administrator 
                determines that an agency described in paragraph (1) is 
                too frequently, at the discretion of the Administrator, 
                using exceptions granted under section 91.225(f)(1) of 
                such title 14, the Administrator shall notify the 
                Committee on Commerce, Science, and Transportation of 
                the Senate and the Committee on Transportation and 
                Infrastructure of the House of Representatives of such 
                determination within 14 days of such determination.
            (3) Sunset.--The reporting requirements described in this 
        subsection shall terminate on the date that is 10 years after 
        the date of enactment of this section.

SEC. 3. ADS-B IN REQUIREMENTS.

    (a) Requirement for Newly Manufactured Manned Aircraft.--Subject to 
subsection (c), not later than 2 years after the date of enactment of 
this section, the Administrator shall issue a final rule that has an 
effective date which is not later than 3 years of the date on which 
such final rule is issued to require that any newly manufactured 
aircraft (other than an unmanned aircraft as defined in section 44801 
of title 49, United States Code) registered in the United States shall 
be equipped with Automatic Dependent Surveillance-Broadcast In 
(referred to in this section as ``ADS-B In'').
    (b) ADS-B In Required in Designated Airspace.--
            (1) In general.--Subject to subsection (c), not later than 
        2 years after the date of enactment of this section, the 
        Administrator shall issue a final rule that has an effective 
        date which is not later than 3 years of the date on which such 
        final rule is issued to require that any aircraft (other than 
        an unmanned aircraft as defined in section 44801 of title 49, 
        United States Code) manufactured as of the date of enactment of 
        this section that is required to be equipped with ADS-B Out 
        when operating in an airspace described in section 91.225(d) of 
        title 14, Code of Federal Regulations, shall also be required 
        to install and operate ADS-B In.
            (2) Considerations.--
                    (A) Additional time.--In conducting the rulemaking 
                under paragraph (1), the Administrator may consider 
                whether any aircraft described in paragraph (1) would 
                require additional time, not to exceed an additional 2 
                years after the effective date described in paragraph 
                (1), to implement such requirement.
                    (B) Notification to congress.--If the Administrator 
                determines there is a need to provide additional time 
                as described in subparagraph (A), the Administrator 
                shall--
                            (i) notify Congress not later than 14 days 
                        after making such determination; and
                            (ii) include a justification for such 
                        determination, as well as the date on which 
                        full compliance is expected.
            (3) Special determination.--For purposes of meeting the 
        requirements of paragraph (1), the Administrator shall 
        determine whether the use of a non-Technical Standard Order 
        receiver is permissible for aircraft with a maximum 
        certificated takeoff weight of fewer than 12,500 pounds.
    (c) Exception.--The requirements of subsections (a) and (b) shall 
not apply to any aircraft described in section 91.225(e) of title 14, 
Code of Federal Regulations, including balloons and gliders not 
certified with an electrical system.

SEC. 4. STUDY ON DYNAMIC RESTRICTED AREA.

    (a) In General.--Not later than 120 days after the date of 
enactment of this section, the Administrator shall initiate a study on 
the feasibility, costs, and benefits of establishing a dynamic 
restricted area for rotorcraft and powered-lift (as such terms are 
defined in section 1.1 of title 14, Code of Federal Regulations (as in 
effect on the date of enactment of this section)) over the Potomac 
River to the north, south, and east of DCA. Such study's final report 
shall be--
            (1) completed not later than 2 years after the date of 
        enactment of this section; and
            (2) submitted to the Committee on Commerce, Science, and 
        Transportation of the Senate and the Committee on 
        Transportation and Infrastructure of the House of 
        Representatives.
    (b) Considerations.--In conducting the study required under 
subsection (a), the Administrator shall review, but is not limited to--
            (1) terrestrial and aircraft-based technology or equipment 
        improvements required to operationalize a dynamic restricted 
        area inside the FRZ and in proximity to DCA;
            (2) the training requirements to enable the use of an 
        automated visual warning system in a way that functions as a 
        traffic signal that is similar to the system deployed in the 
        FRZ, as of the date of enactment of this section, to warn 
        aircraft that they are entering a dynamic restricted airspace 
        that is active or inactive;
            (3) the ways in which the dynamic restricted area can be 
        depicted on various paper and electronic aeronautical charts 
        and other navigational materials;
            (4) the feasibility of using automated audio sounds to 
        indicate active or inactive restricted area, including a 
        continuous tone being generated on a certain aviation VHF and 
        UHF radio communication and VOR and TACAN frequencies that are 
        modulated in tone frequency and tone length (such as Instrument 
        Landing System marker sounds) such that they are received by 
        existing aviation VHF or UHF radio communications transceivers 
        and an automated visual warning system deployed in the FRZ;
            (5) the potential and mitigation steps for pilot and air 
        traffic controller distraction;
            (6) procedures to allow air traffic controllers to override 
        any automatic function of the system for manual control;
            (7) the creation of an indication or other signal in the 
        air traffic control tower at DCA and the Potomac Terminal Radar 
        Approach Control Facility (``TRACON'') to communicate the 
        status of whether the dynamic restricted area is active or 
        inactive;
            (8) the creation of methods to anticipate fixed wing 
        aircraft taking off from DCA so to provide sufficient warning 
        to rotorcraft and powered-lift aircraft of the imminent 
        activation of the dynamic restricted area; and
            (9) any other matters determined appropriate by the 
        Administrator.
    (c) Briefing.--Not later than 30 days after completing the study 
required by subsection (a), the Administrator shall brief the Committee 
on Commerce, Science, and Transportation of the Senate and the 
Committee on Transportation and Infrastructure of the House of 
Representatives on the results of the study.
    (d) Definitions.--In this section:
            (1) DCA.--The term ``DCA'' means Ronald Reagan Washington 
        National Airport.
            (2) Dynamic restricted area.--The term ``dynamic restricted 
        area'' means an area of restriction placed on specific areas of 
        airspace, which is contemplated to be an area over the Potomac 
        River that is 4 miles north, south, and east of DCA, to prevent 
        the transit of rotorcraft and powered lift aircraft that 
        activates independently from air traffic controller action and 
        automatically by computer action based on criteria that uses 
        position, altitude, and velocity data from fixed wing aircraft.
            (3) FRZ.--The term ``FRZ'' means the Washington, DC 
        Metropolitan Area Flight Restricted Zone, as defined by section 
        93.335 of title 14, Code of Federal Regulations (as in effect 
        on the date of enactment of this Act).
            (4) TACAN.--The term ``TACAN'' means tactical air 
        navigation pursuant to Appendix 3 Abbreviation/Acronyms of the 
        Aeronautical Information Manual.
            (5) UHF.--The term ``UHF'' means ultra high frequency 
        pursuant to Appendix 3 Abbreviation/Acronyms of the 
        Aeronautical Information Manual.
            (6) VHF.--The term ``VHF'' means very high frequency 
        pursuant to Appendix 3 Abbreviation/Acronyms of the 
        Aeronautical Information Manual.
            (7) VOR.--The term ``VOR'' means VHF Omnidirectional Range 
        pursuant to Appendix 3 Abbreviation/Acronyms of the 
        Aeronautical Information Manual.

SEC. 5. INSPECTOR GENERAL OF THE ARMY AUDIT.

    (a) In General.--Not later than 60 days after the date of enactment 
of this section, the Inspector General of the Army shall initiate an 
audit to evaluate the Army's coordination with the Federal Aviation 
Administration, pilot training, and qualification standards, and the 
Army's use of ADS-B Out and whether it adheres to Army policy, 
regulation, and law.
    (b) Assessment.--In conducting the audit required by subsection 
(a), the Inspector General of the Army shall assess practices and 
recommendations for the Army, including--
            (1) whether Army policy and United States law was adhered 
        to, and the Army's coordination with the Federal Aviation 
        Administration, during National Capitol Region (in this 
        subsection referred to as the ``NCR'') operations of pilot 
        training and qualifications standards in the NCR;
            (2) the Army's policy on ADS-B Out equipage, usage, and 
        activation;
            (3) maintenance protocols for UH-60 Black Hawk helicopters 
        operated by the 12th Army Aviation Brigade including, but not 
        limited to, the calibration of any system that transmits 
        altitude and position information outside the aircraft and the 
        calibration of systems that sends altitude and position 
        information to the pilots inside the aircraft;
            (4) compliance with the September 29, 2021, Letter of 
        Agreement executed between the Pentagon Heliport Air Traffic 
        Control Tower and the Ronald Reagan Washington National Airport 
        Air Traffic Control Tower regarding flight operations in the 
        NCR; and
            (5) the Army's review of loss of separation incidents 
        involving its rotorcraft in the NCR along with possible 
        mitigations to prevent future mishaps.
    (c) Public Disclosure.--Not later than 14 days after the audit 
required by subsection (a) is concluded, the Secretary of the Army 
shall--
            (1) transmit a report on the results of the audit, without 
        redactions, to the Committee on the Committee on Commerce, 
        Science, and Transportation and the Committee on Armed Services 
        of the Senate and the Committee on Transportation and 
        Infrastructure and the Committee on Armed Services of the House 
        of Representatives; and
            (2) publicly release the report without redactions, except 
        to the extent required for national security reasons.

SEC. 6. REVIEW OF ROTORCRAFT TRAFFIC SURROUNDING COMMERCIAL SERVICE 
              AIRPORTS.

    (a) Review.--Not later than 30 days after the date of enactment of 
this section, the Administrator shall initiate a review of all 
currently charted helicopter routes where flight paths of fixed-wing 
aircraft and rotorcraft (as defined in section 1.1 of such title 14) 
may not provide sufficient separation, as determined by the 
Administrator.
    (b) Modification of Flight Routes.--Based on the results of the 
review conducted under subsection (a), the Administrator shall evaluate 
and modify flight routes, as necessary, to improve separation between 
fixed-wing aircraft and rotorcraft (as so defined).
    (c) Briefing.--Not later than 180 days after the date of enactment 
of this section, the Administrator shall brief the Committee on 
Commerce, Science, and Transportation of the Senate and the Committee 
on Transportation and Infrastructure of the House of Representatives on 
the results of the review conducted under subsection (a) and any 
modifications to flight routes made under subsection (b).

SEC. 7. REPEAL OF PROVISION REGARDING ADS-B EQUIPMENT ON CERTAIN 
              AIRCRAFT OF DEPARTMENT OF DEFENSE.

    Section 1046 of the John S. McCain National Defense Authorization 
Act for Fiscal Year 2019 (49 U.S.C. 40101 note) is repealed.
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