---
type: "Bill"
title: "Assisting eligible children in need of additional preparation to be successful in kindergarten by establishing the transition to kindergarten program."
description: "Assisting eligible children in need of additional preparation to be successful in kindergarten by establishing the transition to kindergarten program."
jurisdiction: "us/states/wa"
legislature: "Washington Legislature"
session: "2023-2024"
identifier: "HB 1550"
citation: "Washington HB 1550 (2023-2024)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Santos"]
version_count: 4
action_count: 50
vote_count: 4
first_action: "2023-01-24"
last_action: "2023-05-11"
source: "openstates"
source_identifier: "ocd-bill/322e4e15-ee0c-47d2-a43e-7203a9c6666e"
source_url: "http://apps.leg.wa.gov/billinfo/summary.aspx?bill=1550&year=2023"
source_hash: "b1cb69ee5212b95d66dad64a97dacef10fb84e654359048f406c88e4541c41b9"
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 1550 (2023-2024) — Assisting eligible children in need of additional preparation to be successful in kindergarten by establishing the transition to kindergarten program.

## 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/2023-24/Htm/Bills/House%20Bills/1550.htm)
2. **Second Substitute Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2023-24/Htm/Bills/House%20Bills/1550-S2.htm)
3. **Second Substitute Passed Legislature** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2023-24/Htm/Bills/House%20Passed%20Legislature/1550-S2.PL.htm)
4. **Substitute Bill** (committee substitute) — [source](http://lawfilesext.leg.wa.gov/Biennium/2023-24/Htm/Bills/House%20Bills/1550-S.htm)

## Votes

- 3rd Reading & Final Passage as Amended by the Senate (#3) — **39–10** (pass) · upper
- Final Passage as Amended by the Senate (#3) — **60–37** (pass) · lower
- 3rd Reading & Final Passage (#27) — **74–22** (pass) · lower
- 3rd Reading & Final Passage as Amended by the Senate (#34) — **30–19** (pass) · upper

## Sponsors

- Santos — primary (person)
- Bergquist — cosponsor (person)
- Berry — cosponsor (person)
- Doglio — cosponsor (person)
- Fosse — cosponsor (person)
- Goodman — cosponsor (person)
- Ortiz-Self — cosponsor (person)
- Pollet — cosponsor (person)
- Ramel — cosponsor (person)
- Senn — cosponsor (person)
- Simmons — cosponsor (person)
- Stonier — cosponsor (person)

## Timeline

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

- **2023-01-24** First reading, referred to Education. `reading-1`
- **2023-01-31** Public hearing in the House Committee on Education at 4:00 PM.
- **2023-02-13** Executive session scheduled, but no action was taken in the House Committee on Education at 1:30 PM.
- **2023-02-14** Executive action taken in the House Committee on Education at 4:00 PM.
- **2023-02-14** ED - Majority; 1st substitute bill be substituted, do pass. `substitution`
- **2023-02-14** Minority; without recommendation. `committee-passage-unfavorable`
- **2023-02-17** Referred to Appropriations. `referral-committee`
- **2023-02-21** Public hearing in the House Committee on Appropriations at 1:30 PM.
- **2023-02-24** Executive action taken in the House Committee on Appropriations at 9:00 AM.
- **2023-02-24** APP - Majority; 2nd substitute bill be substituted, do pass. `substitution`
- **2023-02-24** Minority; do not pass. `committee-passage-unfavorable`
- **2023-02-24** Minority; without recommendation. `committee-passage-unfavorable`
- **2023-02-24** Referred to Rules 2 Review. `referral-committee`
- **2023-03-02** Rules Committee relieved of further consideration. Placed on second reading. `reading-2`
- **2023-03-06** 2nd substitute bill substituted (APP 23). `substitution`
- **2023-03-06** Rules suspended. Placed on Third Reading. `reading-3`
- **2023-03-06** Third reading, passed; yeas, 74; nays, 22; absent, 0; excused, 2. `reading-3`
- **2023-03-08** First reading, referred to Early Learning & K-12 Education. `reading-1`
- **2023-03-22** Public hearing in the Senate Committee on Early Learning & K-12 Education at 1:30 PM.
- **2023-03-27** Executive action taken in the Senate Committee on Early Learning & K-12 Education at 1:30 PM.
- **2023-03-27** EDU - Majority; do pass with amendment(s). `committee-passage-favorable`
- **2023-03-27** Minority; do not pass. `committee-passage-unfavorable`
- **2023-03-27** Minority; without recommendation. `committee-passage-unfavorable`
- **2023-03-27** And refer to Ways & Means. `referral-committee`
- **2023-03-28** Referred to Ways & Means. `referral-committee`
- **2023-03-31** Public hearing in the Senate Committee on Ways & Means at 12:45 PM.
- **2023-04-04** Executive action taken in the Senate Committee on Ways & Means at 10:00 AM.
- **2023-04-04** WM - Majority; do pass with amendment(s) by Early Learning & K-12 Education. `committee-passage-favorable`
- **2023-04-04** Minority; do not pass. `committee-passage-unfavorable`
- **2023-04-04** Minority; without recommendation. `committee-passage-unfavorable`
- **2023-04-04** Passed to Rules Committee for second reading.
- **2023-04-10** Placed on second reading by Rules Committee. `reading-2`
- **2023-04-12** Committee amendment(s) adopted with no other amendments.
- **2023-04-12** Rules suspended. Placed on Third Reading. `reading-3`
- **2023-04-12** Third reading, passed; yeas, 39; nays, 10; absent, 0; excused, 0. `reading-3`
- **2023-04-20** House refuses to concur in Senate amendments. Asks Senate to recede from amendments.
- **2023-04-23** Senate receded from amendments.
- **2023-04-23** Rules suspended.
- **2023-04-23** Returned to second reading for amendment.
- **2023-04-23** Floor amendment(s) adopted.
- **2023-04-23** Rules suspended. Placed on Third Reading. `reading-3`
- **2023-04-23** Third reading, passed; yeas, 30; nays, 19; absent, 0; excused, 0. `reading-3`
- **2023-04-23** House concurred in Senate amendments.
- **2023-04-23** Passed final passage; yeas, 60; nays, 37; absent, 0; excused, 1. `passage`
- **2023-04-23** Speaker signed. `passage`
- **2023-04-23** President signed. `passage`
- **2023-04-23** Delivered to Governor. `executive-receipt`
- **2023-05-11** Governor signed. `executive-signature`
- **2023-05-11** Chapter 420, 2023 Laws. `became-law`
- **2023-05-11** Effective date 7/23/2023. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/322e4e15-ee0c-47d2-a43e-7203a9c6666e`. Confidence: reported (aggregated from official Washington legislature records).