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WashingtonHB 10182025-2026 Regular SessionHouse

Adding fusion energy to facilities that may obtain site certification for the purposes of chapter 80.50 RCW.

Sponsored By: Clyde Shavers (Democratic)

Signed by Governor

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Bill Overview

Analyzed Economic Effects

2 provisions identified: 1 benefits, 1 costs, 0 mixed.

Fusion developers gain a state approval option

Beginning July 27, 2025, Washington fusion developers can choose to seek state site approval to build, rebuild, or enlarge facilities. This approval does not replace required radiation-control licenses, registrations, or equivalent approvals from state or federal agencies. The law does not directly lower household energy bills.

Restoration transfers limited to unfinished fission projects

The special transfer option applies only to unfinished fission nuclear power projects, not fusion projects. It covers site-restoration duties, rights to the site, and related public-welfare duties transferred to local governments. The certificate holder must stop construction, end the project, or decide not to finish it. Fuel must never have been brought to or stored at the site. The facility must never have operated as designed to produce energy.

Sponsors & Cosponsors

Sponsor

  • Clyde Shavers

    Democratic • House

Cosponsors

  • Cindy Ryu

    Democratic • House

  • Dan Bronoske

    Democratic • House

  • Joe Fitzgibbon

    Democratic • House

  • Julia Reed

    Democratic • House

  • Mari Leavitt

    Democratic • House

  • Mia Gregerson

    Democratic • House

  • Sharon Wylie

    Democratic • House

  • Stephanie Barnard

    Republican • House

  • Steve Tharinger

    Democratic • House

  • Strom Peterson

    Democratic • House

Roll Call Votes

All Roll Calls

Yes: 238 • No: 2

House vote • 4/19/2025

Final Passage as Amended by the Senate

Yes: 94 • No: 1 • Other: 3

Senate vote • 3/26/2025

3rd Reading & Final Passage as Amended by the Senate

Yes: 49 • No: 0

House vote • 2/6/2025

3rd Reading & Final Passage

Yes: 95 • No: 1 • Other: 2

Actions Timeline

  1. Effective date 7/27/2025.

    5/13/2025House

  2. Chapter 261, 2025 Laws.

    5/13/2025House

  3. Governor signed.

    5/13/2025legislature

  4. Delivered to Governor.

    4/24/2025legislature

  5. President signed.

    4/23/2025legislature

  6. Speaker signed.

    4/22/2025legislature

  7. Passed final passage; yeas, 94; nays, 1; absent, 0; excused, 3.

    4/19/2025House

  8. House concurred in Senate amendments.

    4/19/2025House

  9. Third reading, passed; yeas, 49; nays, 0; absent, 0; excused, 0.

    3/26/2025House

  10. Rules suspended. Placed on Third Reading.

    3/26/2025House

  11. Committee amendment(s) adopted with no other amendments.

    3/26/2025House

  12. Placed on second reading by Rules Committee.

    3/21/2025House

  13. Passed to Rules Committee for second reading.

    3/18/2025House

  14. ENET - Majority; do pass with amendment(s).

    3/14/2025House

  15. First reading, referred to Environment, Energy & Technology.

    2/7/2025House

  16. Third reading, passed; yeas, 95; nays, 1; absent, 0; excused, 2.

    2/6/2025House

  17. Rules suspended. Placed on Third Reading.

    2/6/2025House

  18. Rules Committee relieved of further consideration. Placed on second reading.

    2/5/2025House

  19. Referred to Rules 2 Review.

    1/29/2025House

  20. ENVI - Executive action taken by committee.

    1/27/2025House

  21. ENVI - Majority; do pass.

    1/27/2025House

  22. First reading, referred to Environment & Energy.

    1/13/2025House

  23. Introduced

    1/13/2025House

Bill Text

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