---
type: "Bill"
title: "Increasing the number of members on the board of osteopathic medicine and surgery."
description: "Increasing the number of members on the board of osteopathic medicine and surgery."
jurisdiction: "us/states/wa"
legislature: "Washington Legislature"
session: "2017-2018"
identifier: "HB 1431"
citation: "Washington HB 1431 (2017-2018)"
classification: ["bill"]
subjects: ["HEALTH CARE PROFESSIONS AND PROVIDERS", "HEALTH", "DEPARTMENT"]
status: "enacted"
primary_sponsors: ["Slatter"]
version_count: 3
action_count: 24
vote_count: 2
first_action: "2017-01-19"
last_action: "2017-04-21"
source: "openstates"
source_identifier: "ocd-bill/851a054a-4e22-4c4c-bf9a-74b91d1adf70"
source_url: "http://apps.leg.wa.gov/billinfo/summary.aspx?bill=1431&year=2017"
source_hash: "e69b6599be577f9786363fbf953ebdc7a1e8d27752ba66803e5900215143e4d1"
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 HB 1431 (2017-2018) — Increasing the number of members on the board of osteopathic medicine and surgery.

## 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/House%20Bills/1431.htm)
2. **Engrossed Substitute Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2017-18/Htm/Bills/House%20Bills/1431-S.E.htm)
3. **Substitute Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2017-18/Htm/Bills/House%20Bills/1431-S.htm)

## Votes

- Final Passage (#20) — **96–0** (pass) · lower
- 3rd Reading & Final Passage (#14) — **46–0** (pass) · upper

## Sponsors

- Slatter — primary (person)
- Cody — cosponsor (person)
- Jinkins — cosponsor (person)

## Timeline

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

- **2017-01-19** First reading, referred to Health Care & Wellness (Not Officially read and referred until adoption of Introduction report). `reading-1`
- **2017-02-17** HCW - Majority; 1st substitute bill be substituted, do pass. `passage`
- **2017-02-17** Referred to Rules 2 Review.
- **2017-02-24** Rules Committee relieved of further consideration. Placed on second reading.
- **2017-02-27** 1st substitute bill substituted. `substitution`
- **2017-02-17** HCW - Majority; 1st substitute bill be substituted, do pass. `passage`
- **2017-02-17** Referred to Rules 2 Review.
- **2017-02-24** Rules Committee relieved of further consideration. Placed on second reading.
- **2017-02-27** 1st substitute bill substituted. `substitution`
- **2017-02-27** Floor amendment(s) adopted.
- **2017-02-27** Rules suspended. Placed on Third Reading.
- **2017-02-27** Third reading, passed; yeas, 96; nays, 0; absent, 0; excused, 2. `reading-3`
- **2017-03-02** First reading, referred to Health Care. `reading-1`
- **2017-03-09** HLTH - Majority; do pass.
- **2017-03-10** Passed to Rules Committee for second reading.
- **2017-03-29** Placed on second reading by Rules Committee.
- **2017-03-31** Rules suspended. Placed on Third Reading.
- **2017-03-31** Third reading, passed; yeas, 46; nays, 0; absent, 0; excused, 3. `reading-3`
- **2017-04-06** Speaker signed. `passage`
- **2017-04-06** President signed. `passage`
- **2017-04-17** Delivered to Governor.
- **2017-04-21** Governor signed. `executive-signature`
- **2017-04-21** Chapter 101, 2017 Laws. `became-law`
- **2017-04-21** Effective date 7/23/2017. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/851a054a-4e22-4c4c-bf9a-74b91d1adf70`. Confidence: reported (aggregated from official Washington legislature records).