---
type: "Bill"
title: "Concerning the electric transmission system."
description: "Concerning the electric transmission system."
jurisdiction: "us/states/wa"
legislature: "Washington Legislature"
session: "2025-2026"
identifier: "SB 6355"
citation: "Washington SB 6355 (2025-2026)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Hunt"]
version_count: 3
action_count: 32
vote_count: 3
first_action: "2026-02-24"
last_action: "2026-03-30"
source: "openstates"
source_identifier: "ocd-bill/05eb5ed1-27f7-491e-a860-d074091617ca"
source_url: "https://app.leg.wa.gov/billsummary/?BillNumber=6355&Year=2025&Initiative=false"
source_hash: "354756ba10c9dad70d892d40c9efdd4fb17fae46bd98a862b26e1a8271bc4849"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-wa"]
---

# Washington SB 6355 (2025-2026) — Concerning the electric transmission system.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2025-26/Htm/Bills/Senate%20Bills/6355.htm)
2. **Substitute Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2025-26/Htm/Bills/Senate%20Bills/6355-S.htm)
3. **Substitute Passed Legislature** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2025-26/Htm/Bills/Senate%20Passed%20Legislature/6355-S.PL.htm)

## Votes

- Final Passage as Amended by the House (#7) — **32–17** (pass) · upper
- Final Passage as Amended by the House (#41) — **66–27** (pass) · lower
- 3rd Reading & Final Passage (#16) — **30–19** (pass) · upper

## Sponsors

- Hunt — primary (person)
- Chapman — cosponsor (person)
- Conway — cosponsor (person)
- Dhingra — cosponsor (person)
- Kauffman — cosponsor (person)
- Pedersen — cosponsor (person)
- Saldaña — cosponsor (person)
- Shewmake — cosponsor (person)
- Stanford — cosponsor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2026-02-24** First Reading.
- **2026-02-24** Held at the Desk.
- **2026-02-26** On motion, referred to Ways & Means.
- **2026-02-26** Public hearing in the Senate Committee on Ways & Means at 1:30 PM.
- **2026-03-02** Executive action taken in the Senate Committee on Ways & Means at 10:30 AM.
- **2026-03-02** WM - Majority; 1st substitute bill be substituted, do pass. `substitution`
- **2026-03-02** Minority; do not pass. `committee-passage-unfavorable`
- **2026-03-02** Minority; without recommendation. `committee-passage-unfavorable`
- **2026-03-02** Passed to Rules Committee for second reading.
- **2026-03-03** Placed on second reading by Rules Committee. `reading-2`
- **2026-03-03** 1st substitute bill substituted (WM 26). `substitution`
- **2026-03-03** Rules suspended. Placed on Third Reading. `reading-3`
- **2026-03-03** Third reading, passed; yeas, 30; nays, 19; absent, 0; excused, 0. `reading-3`
- **2026-03-04** First reading, referred to Appropriations. `reading-1`
- **2026-03-05** Public hearing in the House Committee on Appropriations at 8:00 AM.
- **2026-03-09** Executive action taken in the House Committee on Appropriations at 8:00 AM.
- **2026-03-09** APP - Majority; do pass with amendment(s). `committee-passage-favorable`
- **2026-03-09** Minority; do not pass. `committee-passage-unfavorable`
- **2026-03-09** Referred to Rules 2 Review. `referral-committee`
- **2026-03-09** Rules Committee relieved of further consideration. Placed on second reading. `reading-2`
- **2026-03-11** Committee amendment not adopted. `amendment-failure`
- **2026-03-11** Floor amendment(s) adopted.
- **2026-03-11** Rules suspended. Placed on Third Reading. `reading-3`
- **2026-03-11** Third reading, passed; yeas, 66; nays, 27; absent, 0; excused, 5. `reading-3`
- **2026-03-12** Senate concurred in House amendments.
- **2026-03-12** Passed final passage; yeas, 32; nays, 17; absent, 0; excused, 0. `passage`
- **2026-03-12** President signed. `passage`
- **2026-03-12** Speaker signed. `passage`
- **2026-03-13** Delivered to Governor. `executive-receipt`
- **2026-03-30** Governor signed. `executive-signature`
- **2026-03-30** Chapter 249, 2026 Laws. `became-law`
- **2026-03-30** Effective date 6/11/2026*. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/05eb5ed1-27f7-491e-a860-d074091617ca`. Confidence: reported (aggregated from official Washington legislature records).