---
type: "Bill"
title: "Concerning the International Wildland Urban Interface Code."
description: "Concerning the International Wildland Urban Interface Code."
jurisdiction: "us/states/wa"
legislature: "Washington Legislature"
session: "2017-2018"
identifier: "SB 6109"
citation: "Washington SB 6109 (2017-2018)"
classification: ["bill"]
subjects: ["BUILDING CODE COUNCIL", "NATURAL RESOURCES", "DEPARTMENT", "COUNTIES", "CITIES AND TOWNS", "BUILDING CODES AND PERMITS", "WILDLIFE"]
status: "enacted"
primary_sponsors: ["Van De Wege"]
version_count: 3
action_count: 39
vote_count: 2
first_action: "2018-01-05"
last_action: "2018-03-22"
source: "openstates"
source_identifier: "ocd-bill/0cb4013e-11e7-4c0f-a4d6-97df54bd3256"
source_url: "http://apps.leg.wa.gov/billinfo/summary.aspx?bill=6109&year=2017"
source_hash: "f39ca00c69ca06a91bff8eb8599c1480894f024eab254b5abd7230c388b8a926"
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 6109 (2017-2018) — Concerning the International Wildland Urban Interface Code.

## 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/2017-18/Htm/Bills/Senate%20Bills/6109.htm)
2. **Engrossed Substitute Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2017-18/Htm/Bills/Senate%20Bills/6109-S.E.htm)
3. **Substitute Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2017-18/Htm/Bills/Senate%20Bills/6109-S.htm)

## Votes

- Final Passage (#31) — **50–47** (pass) · lower
- 3rd Reading & Final Passage (#38) — **34–12** (pass) · upper

## Sponsors

- Van De Wege — primary (person)
- Rolfes — cosponsor (person)

## Timeline

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

- **2018-01-05** Prefiled for introduction. `filing`
- **2018-01-08** First reading, referred to State Government, Tribal Relations & Elections. `reading-1`
- **2018-02-02** SGTE - Majority; do pass.
- **2018-02-02** And refer to Ways & Means. `referral-committee`
- **2018-02-02** Minority; without recommendation.
- **2018-02-02** Referred to Ways & Means.
- **2018-02-06** WM - Majority; 1st substitute bill be substituted, do pass. `passage`
- **2018-02-06** Minority; do not pass.
- **2018-02-06** Minority; without recommendation.
- **2018-02-06** Passed to Rules Committee for second reading.
- **2018-02-07** Placed on second reading by Rules Committee.
- **2018-02-09** 1st substitute bill substituted. `substitution`
- **2018-02-06** WM - Majority; 1st substitute bill be substituted, do pass. `passage`
- **2018-02-06** Minority; do not pass.
- **2018-02-06** Minority; without recommendation.
- **2018-02-06** Passed to Rules Committee for second reading.
- **2018-02-07** Placed on second reading by Rules Committee.
- **2018-02-09** 1st substitute bill substituted. `substitution`
- **2018-02-09** Floor amendment(s) adopted.
- **2018-02-09** Rules suspended. Placed on Third Reading.
- **2018-02-09** Third reading, passed; yeas, 34; nays, 12; absent, 1; excused, 2. `reading-3`
- **2018-02-13** First reading, referred to Local Government (Not Officially read and referred until adoption of Introduction report). `reading-1`
- **2018-02-21** LG - Majority; do pass.
- **2018-02-21** Minority; do not pass.
- **2018-02-21** Minority; without recommendation.
- **2018-02-23** Referred to Appropriations.
- **2018-02-26** APP - Majority; do pass.
- **2018-02-26** Minority; do not pass.
- **2018-02-26** Minority; without recommendation.
- **2018-02-26** Referred to Rules 2 Review.
- **2018-02-28** Rules Committee relieved of further consideration. Placed on second reading.
- **2018-03-01** Rules suspended. Placed on Third Reading.
- **2018-03-01** Third reading, passed; yeas, 50; nays, 47; absent, 0; excused, 1. `reading-3`
- **2018-03-05** President signed. `passage`
- **2018-03-06** Speaker signed. `passage`
- **2018-03-06** Delivered to Governor.
- **2018-03-22** Governor signed. `executive-signature`
- **2018-03-22** Chapter 189, 2018 Laws. `became-law`
- **2018-03-22** Effective date 6/7/2018. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/0cb4013e-11e7-4c0f-a4d6-97df54bd3256`. Confidence: reported (aggregated from official Washington legislature records).