United States 119th Congress Status: In Committee Bipartisan · 1 R · 1 D cosponsors

S 4529 — Build Nuclear with Local Materials Act of 2026

Last action — Committee on Environment and Public Works Subcommittee on Clean Air, Climate, and Nuclear Innovation and Safety. Hearings held.

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  1. ✓
    Introduced
  2. 2
    In Committee
  3. 3
    Passed Senate
  4. 4
    Passed House
  5. 5
    To Executive
  6. 6
    Enacted

This bill is in committee in the Senate. Introduced May 14, 2026. It must pass committee before a floor vote.

Next likely step: a committee vote, then a floor vote in the Senate.

Prognosis

Advancing 34% · moderate confidence

Where this bill stands today.

Odds of enactment

Low

How often bills like it became law.

  • In Committee

    Current position in the legislative process.

  • 2 sponsors

    1 primary, 1 co-sponsors signed on.

  • Bipartisan support

    Sponsored across 2 parties (1 R · 1 D) — cross-party backing.

Prognosis reads this bill's own signals — stage, sponsorship breadth, committee status, recorded votes and cross-state momentum. Odds come from a model trained on which bills have become law.

In plain language

The bill allows commercial-grade materials in certain nuclear plant structures.

This bill requires the Nuclear Regulatory Commission to permit the use of commercial-grade steel and concrete in non-safety-related structures at nuclear power plants. The Commission can impose stricter standards only if necessary for safety reasons.

Bill Text

Action History

  1. Committee on Environment and Public Works Subcommittee on Clean Air, Climate, and Nuclear Innovation and Safety. Hearings held.

  2. Introduced in Senate

  3. Read twice and referred to the Committee on Environment and Public Works.

Sponsors

Sponsorship breakdown

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1 sponsors · 1 co-sponsors · 545 not signed on

Sponsors (1)

Co-sponsors (1)

Not signed on (545)

545 members have not signed on to this bill.

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"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.

Whip count is in markup. Polling the chamber and every recorded vote this session. Only the first open is slow. It’s instant for you after this. Calling the roll · Tallying · Engrossing

Subjects

technology energy
Cross-referencing the record. Reading this bill against every other bill in the corpus by meaning, not keywords. Only the first open is slow. It’s instant for you after this. Matching · Ranking · Engrossing

Frequently asked questions

Who sponsors S 4529?
S 4529 is sponsored by Kelly, Mark (Democratic) and Lummis, Cynthia M. (Republican).
What is the current status of S 4529?
This bill is in committee in the Senate. Introduced May 14, 2026. It must pass committee before a floor vote.
Where can I track S 4529?
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Last checked for changes 3 months ago · updated continuously

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