SB6355 Concerning the Electric Transmission System
Summary
Washington State enacted SB6355, Chapter 249, Laws of 2026, concerning the electric transmission system. The bill was signed by the Governor on March 30, 2026, and takes effect on June 11, 2026. It passed the Senate 32-17 and the House 66-27 after committee review and multiple amendments.
What changed
Washington State enacted SB6355, a new law concerning the electric transmission system. The bill cleared both chambers with final passage votes of 32-17 in the Senate and 66-27 in the House, and was signed into law as Chapter 249 on March 30, 2026, with an effective date of June 11, 2026.
Energy companies operating electric transmission infrastructure in Washington and relevant government agencies should monitor for implementing regulations or compliance requirements as the June 11, 2026 effective date approaches. The scope and specific obligations of the new framework will be defined as the law is implemented.
Archived snapshot
Apr 22, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
ChangeBridge / Washington / SB6355 Enacted SB6355 Senate Bill Enacted 2026-03-30
Concerning the electric transmission system.
Bill Details
State Washington
Session 2025-2026 Regular Session
Chamber Senate
Official Source app.leg.wa.gov/billsummary?BillNumber=6355...
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Sponsors
Victoria Hunt (Rep - D) Claudia Kauffman (Sen - D) Mike Chapman (Sen - D) Steven Conway (Sen - D) Manka Dhingra (Sen - D) Jamie Pedersen (Sen - D) Rebecca Saldana (Sen - D) Sharon Shewmake (Sen - D) Derek Stanford (Sen - D)
Action History
2026-03-30 S Effective date 6/11/2026*. 2026-03-30 S Chapter 249, 2026 Laws. 2026-03-30 S Governor signed. 2026-03-13 S Delivered to Governor. 2026-03-12 H Speaker signed. 2026-03-12 S President signed. 2026-03-12 S Passed final passage; yeas, 32; nays, 17; absent, 0; excused, 0. 2026-03-12 S Senate concurred in House amendments. 2026-03-11 H Third reading, passed; yeas, 66; nays, 27; absent, 0; excused, 5. 2026-03-11 H Rules suspended. Placed on Third Reading. 2026-03-11 H Floor amendment 2026-03-11 H Committee amendment not adopted. 2026-03-09 H Rules Committee relieved of further consideration. Placed on second reading. 2026-03-09 H Referred to Rules 2 Review. 2026-03-09 H Minority; do not pass. 2026-03-09 H APP - Majority; do pass with amendment 2026-03-09 H Executive action taken in the House Committee on Appropriations at 8:00 AM. 2026-03-05 H Public hearing in the House Committee on Appropriations at 8:00 AM. 2026-03-04 H First reading, referred to Appropriations. 2026-03-03 S Third reading, passed; yeas, 30; nays, 19; absent, 0; excused, 0. 2026-03-03 S Rules suspended. Placed on Third Reading. 2026-03-03 S 1st substitute bill substituted 2026-03-03 S Placed on second reading by Rules Committee. 2026-03-02 S Passed to Rules Committee for second reading. 2026-03-02 S Minority; without recommendation. 2026-03-02 S Minority; do not pass. 2026-03-02 S WM - Majority; 1st substitute bill be substituted, do pass. 2026-03-02 S Executive action taken in the Senate Committee on Ways & Means at 10:30 AM. 2026-02-26 S Public hearing in the Senate Committee on Ways & Means at 1:30 PM. 2026-02-26 S On motion, referred to Ways & Means. 2026-02-24 S Held at the Desk. 2026-02-24 S First Reading.
Votes
2026-03-02 Senate Committee on Ways & Means: 1st substitute bill be substituted, do pass Yea: 15 Nay: 7 2026-03-03 Senate 3rd Reading & Final Passage Yea: 30 Nay: 19 2026-03-09 House Committee on Appropriations: do pass with amendment(s) Yea: 18 Nay: 11 2026-03-11 House Final Passage as Amended by the House Yea: 66 Nay: 27 2026-03-12 Senate Final Passage as Amended by the House Yea: 32 Nay: 17
Committee Referrals
2026-02-26 S Ways & Means 2026-03-02 S Rules 2026-03-04 H Appropriations 2026-03-09 H Rules
Amendments
0000-00-00 Senate Floor Amendment 0000-00-00 Senate Floor Amendment 0000-00-00 House Committee Amendment 0000-00-00 House Floor Amendment 0000-00-00 House Floor Amendment 0000-00-00 House Floor Amendment 0000-00-00 House Floor Amendment 0000-00-00 House Floor Amendment 0000-00-00 House Floor Amendment 0000-00-00 House Floor Amendment 0000-00-00 House Floor Amendment 0000-00-00 House Floor Amendment 0000-00-00 House Floor Amendment 0000-00-00 House Floor Amendment 0000-00-00 House Floor Amendment 0000-00-00 House Floor Amendment 0000-00-00 House Floor Amendment 2026-03-11 House Engrossed Amendment Adopted
Bill Text Versions
0000-00-00 Introduced 0000-00-00 Comm Sub 0000-00-00 Enrolled 0000-00-00 Chaptered Legislative data powered by LegiScan (CC BY 4.0)
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