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State Legislation & Regulatory Actions
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WI·Bill·2025-2026 Regular Session

SB 125

Signed into Law

Relating to: a nuclear power siting study and time limits for taking final action on certain certificate of public convenience and necessity applications. (FE)

Introduced 2025-03-14Last action 2025-07-03 — Published 7-3-2025Committee Rules

Sponsor

WanggaardR

Cosponsors

Dan Feyen(R)Van Wanggaard(R)Shae Sortwell(R)David Steffen(R)Robert Wittke(R)Calvin Callahan(R)Barbara Dittrich(R)Chanz Green(R)Nate Gustafson(R)Dan Knodl(R)Clint Moses(R)David Murphy(R)Jeffrey Mursau(R)Jerry O'Connor(R)Patrick Snyder(R)John Spiros(R)Lisa Subeck(D)Ron Tusler(R)Shannon Zimmerman(R)Chuck Wichgers(R)
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Signed into Law

Legislative Progress

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Introduced
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In Committee
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Passed Chamber
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Enacted / Signed

Votes

Senate2025-05-15PassedSee how each member voted →
Senate: Read a third time and passed
Yea 28 · 11 D · 17 RNay 5 · 4 D · 1 R
Senate2025-05-15PassedSee how each member voted →
Senate: Decision of the Chair stands as the judgment of the Senate
Yea 18 · 18 RNay 15 · 15 D

Summary

This bill requires the Public Service Commission to conduct a comprehensive study on nuclear power and fusion energy siting in Wisconsin, examining factors such as economic feasibility, environmental impacts, safety considerations, and workforce requirements. The study must specifically review approval and permitting processes for small modular reactor projects, engage with federal nuclear regulatory authorities to identify opportunities for streamlining approvals, and assess methods to expedite the certificate of public convenience and necessity process for facilities using advanced nuclear reactors. The commission must submit its findings in a report to the legislature by the 19th day following the bill's effective date, providing lawmakers with critical information to inform future policy decisions on nuclear and fusion energy development in the state.

Bill history

  1. 2025-03-14 · Senate
    Introduced
  2. 2025-03-14 · Senate
    Read first time and referred to Committee on Utilities and Tourism
  3. 2025-04-04 · Senate
    Fiscal estimate received
  4. 2025-04-25 · Senate
    Senator Hutton added as a coauthor
  5. 2025-04-28 · Senate
    Senate Amendment 1 offered by Senator Bradley
  6. 2025-04-30 · Senate
    Public hearing held
  7. 2025-05-06 · Senate
    Executive action taken
  8. 2025-05-06 · Senate
    Report adoption of Senate Amendment 1 recommended by Committee on Utilities and Tourism, Ayes 5, Noes 0
  9. 2025-05-06 · Senate
    Report passage as amended recommended by Committee on Utilities and Tourism, Ayes 5, Noes 0
  10. 2025-05-06 · Senate
    Available for scheduling
  11. 2025-05-08 · Senate
    Senator Stafsholt added as a coauthor
  12. 2025-05-13 · Senate
    Placed on calendar 5-15-2025 pursuant to Senate Rule 18(1)
  13. 2025-05-15 · Senate
    Senate Substitute Amendment 1 offered by Senators Larson, Carpenter, Roys, Drake, Dassler-Alfheim, Habush Sinykin, Smith and Spreitzer
  14. 2025-05-15 · Senate
    Read a second time
  15. 2025-05-15 · Senate
    Senate Amendment 1 adopted
  16. 2025-05-15 · Senate
    Point of order that Senate Substitute Amendment 1 was not germane well taken
  17. 2025-05-15 · Senate
    Decision of the Chair stands as the judgment of the Senate, Ayes 18, Noes 15
  18. 2025-05-15 · Senate
    Referred to joint committee on Finance
  19. 2025-05-15 · Senate
    Withdrawn from joint committee on Finance and taken up
  20. 2025-05-15 · Senate
    Ordered to a third reading
  21. 2025-05-15 · Senate
    Rules suspended to give bill its third reading
  22. 2025-05-15 · Senate
    Read a third time and passed, Ayes 28, Noes 5
  23. 2025-05-15 · Senate
    Ordered immediately messaged
  24. 2025-05-15 · Assembly
    Received from Senate
  25. 2025-05-27 · Assembly
    Read first time and referred to committee on Rules
  26. 2025-06-18 · Assembly
    Representative Penterman added as a cosponsor
  27. 2025-06-20 · Assembly
    Withdrawn from Committee on Rules and referred to calendar of 6-24-2025
  28. 2025-06-24 · Assembly
    Representative Stubbs added as a cosponsor
  29. 2025-06-24 · Assembly
    Rules suspended to withdraw from calendar and take up
  30. 2025-06-24 · Assembly
    Read a second time
  31. 2025-06-24 · Assembly
    Ordered to a third reading
  32. 2025-06-24 · Assembly
    Rules suspended
  33. 2025-06-24 · Assembly
    Read a third time and concurred in
  34. 2025-06-24 · Assembly
    Ordered immediately messaged
  35. 2025-06-24 · Senate
    Received from Assembly concurred in
  36. 2025-06-25 · Senate
    Report correctly enrolled
  37. 2025-06-25 · Senate
    Attempted to present to the Governor on 6-25-2025, pursuant to Senate Rule 44m (2)
  38. 2025-06-26 · Senate
    Presented to the Governor on 6-26-2025 by directive of the Majority Leader
  39. 2025-07-03 · Senate
    Report approved by the Governor on 7-2-2025. 2025 Wisconsin Act 12
  40. 2025-07-03 · Senate
    Published 7-3-2025

Note

Historical import. Session: 2025

Full Bill Text
https://docs.legis.wisconsin.gov/document/amends/2025/REG/SB125-SA1.pdf
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