---
type: "Bill"
title: "Preventing unfunded mandates involving on-site sewage systems from affecting local governments and property owners."
description: "Preventing unfunded mandates involving on-site sewage systems from affecting local governments and property owners."
jurisdiction: "us/states/wa"
legislature: "Washington Legislature"
session: "2017-2018"
identifier: "HB 1503"
citation: "Washington HB 1503 (2017-2018)"
classification: ["bill"]
subjects: ["WATER POLLUTION", "HEALTH DEPARTMENTS", "LOCAL", "SEWAGE AND SEWERS", "GROWTH MANAGEMENT"]
status: "enacted"
primary_sponsors: ["Short"]
version_count: 3
action_count: 26
vote_count: 2
first_action: "2017-01-23"
last_action: "2017-04-21"
source: "openstates"
source_identifier: "ocd-bill/8485883d-40c1-4c1d-85d6-8a9a3bfd1840"
source_url: "http://apps.leg.wa.gov/billinfo/summary.aspx?bill=1503&year=2017"
source_hash: "a362716ced937b4de2215eb8cbde732af75c83b68de15fe3207b5dea7eaa667a"
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 1503 (2017-2018) — Preventing unfunded mandates involving on-site sewage systems from affecting local governments and property owners.

## 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/1503.htm)
2. **Engrossed Substitute Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2017-18/Htm/Bills/House%20Bills/1503-S.E.htm)
3. **Substitute Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2017-18/Htm/Bills/House%20Bills/1503-S.htm)

## Votes

- 3rd Reading & Final Passage (#26) — **48–0** (pass) · upper
- Final Passage (#18) — **91–6** (pass) · lower

## Sponsors

- Short — primary (person)
- Buys — cosponsor (person)
- Haler — cosponsor (person)
- Hargrove — cosponsor (person)
- Kraft — cosponsor (person)
- Taylor — cosponsor (person)
- Van Werven — cosponsor (person)

## Timeline

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

- **2017-01-23** First reading, referred to Environment (Not Officially read and referred until adoption of Introduction report). `reading-1`
- **2017-02-16** ENVI - Majority; 1st substitute bill be substituted, do pass. `passage`
- **2017-02-16** Minority; do not pass.
- **2017-02-17** Referred to Rules 2 Review.
- **2017-03-03** Rules Committee relieved of further consideration. Placed on second reading.
- **2017-03-08** 1st substitute bill substituted. `substitution`
- **2017-02-16** ENVI - Majority; 1st substitute bill be substituted, do pass. `passage`
- **2017-02-16** Minority; do not pass.
- **2017-02-17** Referred to Rules 2 Review.
- **2017-03-03** Rules Committee relieved of further consideration. Placed on second reading.
- **2017-03-08** 1st substitute bill substituted. `substitution`
- **2017-03-08** Floor amendment(s) adopted.
- **2017-03-08** Rules suspended. Placed on Third Reading.
- **2017-03-08** Third reading, passed; yeas, 91; nays, 6; absent, 0; excused, 1. `reading-3`
- **2017-03-10** First reading, referred to Local Government. `reading-1`
- **2017-03-28** LGOV - Majority; do pass.
- **2017-03-29** Passed to Rules Committee for second reading.
- **2017-04-04** Placed on second reading by Rules Committee.
- **2017-04-05** Rules suspended. Placed on Third Reading.
- **2017-04-05** Third reading, passed; yeas, 48; nays, 0; absent, 0; excused, 1. `reading-3`
- **2017-04-10** Speaker signed. `passage`
- **2017-04-11** President signed. `passage`
- **2017-04-17** Delivered to Governor.
- **2017-04-21** Governor signed. `executive-signature`
- **2017-04-21** Chapter 105, 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/8485883d-40c1-4c1d-85d6-8a9a3bfd1840`. Confidence: reported (aggregated from official Washington legislature records).