Washington · 2025-2026 Biennium (69th Legislature)

Concerning the electric transmission system.

AN ACT Relating to creating partnerships to improve the reliability and capacity of the electric transmission system, including through a Washington electric transmission authority;

SSB 6355·Senate·Bill

Rep. Victoria HuntState House · LD-05·8 cosponsors

Fiscal noteState YesLocal Yes

Effective dateJune 11, 2026 (sections take effect on several dates)

Primary sponsor

Victoria HuntState House · LD-05

Cosponsors

Claudia KauffmanState Senate · LD-47

Mike ChapmanState Senate · LD-24

Steve ConwayState Senate · LD-29

Manka DhingraState Senate · LD-45

Jamie PedersenState Senate · LD-43

Rebecca SaldañaState Senate · LD-37

Sharon ShewmakeState Senate · LD-42

Derek StanfordState Senate · LD-01

Floor votes

Senate · 3rd Reading & Final Passage · SSB 6355Mar 3, 202630–19

House · Final Passage as Amended by the House · SSB 6355Mar 11, 202666–27

Senate · Final Passage as Amended by the House · SSB 6355Mar 12, 202632–17

Legislative history

Feb 24, 2026

First Reading.

Feb 24, 2026

Held at the Desk.

Feb 26, 2026

On motion, referred to Ways & Means.

Mar 2, 2026

WM - Majority; 1st substitute bill be substituted, do pass.

Mar 2, 2026

Minority; do not pass.

Mar 2, 2026

Minority; without recommendation.

Mar 2, 2026

Passed to Rules Committee for second reading.

Mar 3, 2026

Placed on second reading by Rules Committee.

Mar 3, 2026

1st substitute bill substituted.

Mar 3, 2026

Rules suspended. Placed on Third Reading.

Mar 3, 2026

Third reading, passed; yeas, 30; nays, 19; absent, 0; excused, 0.

Mar 4, 2026

First reading, referred to Appropriations.

Mar 9, 2026

APP - Executive action taken by committee.

Mar 9, 2026

APP - Majority; do pass with amendment(s).

Mar 9, 2026

Minority; do not pass.

Mar 9, 2026

Referred to Rules 2 Review.

Mar 9, 2026

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

Mar 11, 2026

Committee amendment not adopted.

Mar 11, 2026

Floor amendment(s) adopted.

Mar 11, 2026

Rules suspended. Placed on Third Reading.

Mar 11, 2026

Third reading, passed; yeas, 66; nays, 27; absent, 0; excused, 5.

Mar 12, 2026

Senate concurred in House amendments.

Mar 12, 2026

Passed final passage; yeas, 32; nays, 17; absent, 0; excused, 0.

Mar 12, 2026

President signed.

Mar 12, 2026

Speaker signed.

Mar 13, 2026

Delivered to Governor.

Mar 30, 2026

Governor signed.

Mar 30, 2026

Chapter 249, 2026 Laws.

Mar 30, 2026

Effective date 6/11/2026*.

Bill text

Original Bill Substitute Bill Bill as Passed Legislature

Amendments

Bill reports

Senate Bill Report (Orig.) — Initial Bill Report 02-26-26 Senate Bill Report — Testimony Added 02-26-26 Senate Bill Report — Reported by WM 03-02-26 Substitute Senate Bill Report — Passed Senate 03-03-26 Substitute House Bill Analysis 2026 — Initial House Analysis 03-05-26 Substitute House Bill Report — Reported by APP 03-09-26 Substitute House Bill Report — Passed House 03-11-26 Substitute Senate Bill Report — Amended by House 03-11-26 Final Bill Report — Final Bill Report 2026

Session law

Chapter 249, Laws of 2026