WHAT THE LAW DOINCongress, in plain words

S. 3929 · 119th Congress

Air Traffic Situational Awareness Enhancement Act

IntroducedTransportation and Public Works
IntroducedFeb 26, 2026
Passed SenateNot yet
Passed HouseNot yet
To PresidentNot yet
Became lawNot yet

Where it stands

Introduced. Latest step, Sep 16, 2026: Committee on Commerce, Science, and Transportation. Ordered to be reported with an amendment in the nature of a substitute favorably. It would change 2 sections of existing law.

How this bill changes the law

Sourced

S. 3929 would change 2 sections of existing law. Read from the bill text as introduced in the Senate (Feb 26, 2026).

49 U.S.C. 47124 Agreements for State and local operation of airport facilities

  • (f) Improving Controller Situational Awareness.— rewritten · Sec. 2(b), Sec. 2(c) · see the words

49 U.S.C. 48101 Air navigation facilities and equipment

  • (c) Authorized Expenditures.—Of the amounts appropriated under subsection (a), such… added to · Sec. 2(e) · see the words
What the words would change: every change, in place (4)

Today's wording of each part of the law, with what would be struck out and added. Each change also gives the bill's own instruction, word for word.

  1. 49 U.S.C. 47124(f)(2)rewrittenby S. 3929 Sec. 2(b)

    The bill says: Section 47124(f)(2) of title 49, United States Code, is amended to read as follows:

    Bill text · Current law (49 U.S.C. 47124)

  2. 49 U.S.C. 47124(f)(3)(B)changedby S. 3929 Sec. 2(c)

    The bill says: in subparagraph (B), by inserting "and" after the semicolon; and

    Bill text · Current law (49 U.S.C. 47124)

  3. 49 U.S.C. 47124(f)(3)changedby S. 3929 Sec. 2(c)

    The bill says: by striking subparagraphs (C) through (E) and inserting the following:

    Bill text · Current law (49 U.S.C. 47124)

  4. 49 U.S.C. 48101(c)added (10)by S. 3929 Sec. 2(e)

    (10) The acquisition, installation, and annual operating expenses of certified Airborne Position Reference Tools at air traffic control towers that are operating under contract with the Federal Aviation Administration under section 47124 and are not equipped with Standard Terminal Automation Replacement Systems or other situational awareness tools.

    The bill says: Section 48101(c) of title 49, United States Code, is amended by adding at the end the following new paragraph:

    Bill text · Current law (49 U.S.C. 48101)

From the bill's official text on GovInfo and the U.S. Code, 2024 edition, which may not yet show changes made since.

What it does

Sourced

The Congressional Research Service hasn't published a summary of this bill yet. They usually follow within weeks of introduction.

Our plain-language breakdown, with what it means for you and the case for and against, is written once a bill starts to move.

What has happened

Sourced
  1. Sep 16, 2026Committee on Commerce, Science, and Transportation. Ordered to be reported with an amendment in the nature of a substitute favorably.Senate
  2. Feb 26, 2026Read twice and referred to the Committee on Commerce, Science, and Transportation.Senate
  3. Feb 26, 2026Introduced in SenateLibrary of Congress

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Cosponsors

  • Steve Daines R-MT
  • Jeff Merkley D-OR
  • Ron Wyden D-OR