SSB 6355 — Concerning the electric transmission system.

What this bill does

Establishes the Washington Electric Transmission Authority (Authority) to, among other duties, support the expansion of and upgrades to the electric transmission system and be a state-wide resource for transmission. Creates a ten-member board of directors to provide oversight and advise the Authority. Directs the Department of Commerce to conduct an initial identification of high priority transmission corridors. Establishes a tribal clean energy partnership work group to identify and evaluate opportunities for tribal participation in the development and ownership of clean energy facilities and infrastructure.

From the Washington State Legislature's nonpartisan staff bill analysis. Read the full analysis ↗

Floor votes

• House — Final Passage as Amended by the House · March 11, 2026
  66 yea · 27 nay · 5 not voting
• Senate — 3rd Reading & Final Passage · March 3, 2026
  30 yea · 19 nay
• Senate — Final Passage as Amended by the House · March 12, 2026
  32 yea · 17 nay

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