---
type: "Bill"
title: "Pupil instruction: science requirements: climate change."
description: "(1) Existing law requires the adopted course of study for grades 1 to 6, inclusive, and the adopted course of study for grades 7 to 12, inclusive, to include certain areas of study, including, among others, English, mathematics, social sciences, science, and visual and performing arts, as specified."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20232024"
identifier: "AB 285"
citation: "California AB 285 (20232024)"
classification: ["bill"]
subjects: ["Pupil instruction", "climate change", "science requirements"]
status: "enacted"
primary_sponsors: ["Luz Rivas"]
version_count: 6
action_count: 23
vote_count: 6
first_action: "2023-01-24"
last_action: "2023-10-08"
source: "openstates"
source_identifier: "ocd-bill/23807165-787d-4f1d-8a84-d5c376a35b65"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB285"
source_hash: "abfe56bfe3e053ffdb05f11a8a691df12bab5b8fb5f0b2c13d06cdb538026f58"
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-ca"]
---

# California AB 285 (20232024) — Pupil instruction: science requirements: climate change.

(1) Existing law requires the adopted course of study for grades 1 to 6, inclusive, and the adopted course of study for grades 7 to 12, inclusive, to include certain areas of study, including, among others, English, mathematics, social sciences, science, and visual and performing arts, as specified.

## Version chain

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

1. **01/24/23 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB285&version=20230AB28599INT)
2. **08/15/23 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB285&version=20230AB28598AMD)
3. **09/08/23 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB285&version=20230AB28597AMD)
4. **10/08/23 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB285&version=20230AB28595CHP)
5. **AB285** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB285)
6. **09/18/23 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB285&version=20230AB28596ENR)

## Votes

- 3rd Reading AB285 Luz Rivas et al. By Cortese — **33–0** (pass) · upper
- Do pass, but first be re-referred to the Committee on [Appropriations] — **7–0** (pass) · upper
- Do pass. — **11–3** (pass) · lower
- AB 285 Luz Rivas Assembly Third Reading — **59–2** (pass) · lower
- Do pass and be re-referred to the Committee on [Appropriations] — **6–0** (pass) · lower
- AB 285 Luz Rivas Concurrence in Senate Amendments — **67–4** (pass) · lower

## Sponsors

- Luz Rivas — primary (person)
- Boerner — coauthor (person)
- Calderon — principal coauthor (person)
- Cortese — principal coauthor (person)
- Davies — coauthor (person)
- Gonzalez — principal coauthor (person)
- Muratsuchi — coauthor (person)
- Ward — principal coauthor (person)

## Timeline

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

- **2023-01-24** Read first time. To print. `reading-1`
- **2023-01-25** From printer. May be heard in committee February 24.
- **2023-02-02** Referred to Com. on ED. `referral-committee`
- **2023-03-23** Coauthors revised.
- **2023-03-23** From committee: Do pass and re-refer to Com. on APPR. (Ayes 6. Noes 0.) (March 22). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2023-04-19** From committee: Do pass. (Ayes 11. Noes 3.) (April 19). `committee-passage, committee-passage-favorable`
- **2023-04-20** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2023-05-08** Read third time. Passed. Ordered to the Senate. (Ayes 59. Noes 2. Page 1483.) `passage, reading-1, reading-3`
- **2023-05-09** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2023-05-17** Referred to Com. on ED. `referral-committee`
- **2023-06-07** From committee: Do pass and re-refer to Com. on APPR. (Ayes 7. Noes 0.) (June 7). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2023-06-26** From committee: Be ordered to second reading pursuant to Senate Rule 28.8. `committee-passage, reading-2`
- **2023-06-27** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2023-08-15** Read third time and amended. Ordered to second reading. `amendment-passage, reading-1, reading-3`
- **2023-08-16** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2023-09-08** Read third time and amended. Ordered to second reading. `amendment-passage, reading-1, reading-3`
- **2023-09-11** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2023-09-12** Read third time. Passed. Ordered to the Assembly. (Ayes 33. Noes 0. Page 2644.). `passage, reading-1, reading-3`
- **2023-09-12** In Assembly. Concurrence in Senate amendments pending.
- **2023-09-13** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 67. Noes 4. Page 3379.). `amendment-passage, committee-passage-favorable`
- **2023-09-20** Enrolled and presented to the Governor at 4 p.m.
- **2023-10-08** Approved by the Governor. `executive-signature`
- **2023-10-08** Chaptered by Secretary of State - Chapter 426, Statutes of 2023. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/23807165-787d-4f1d-8a84-d5c376a35b65`. Confidence: reported (aggregated from official California legislature records).