---
type: "Bill"
title: "Voluntary carbon market disclosures."
description: "Existing law imposes various limitations on emissions of air contaminants for the control of air pollution from vehicular and nonvehicular sources."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20232024"
identifier: "AB 1305"
citation: "California AB 1305 (20232024)"
classification: ["bill"]
subjects: ["Voluntary carbon market disclosures"]
status: "enacted"
primary_sponsors: ["Gabriel"]
version_count: 9
action_count: 29
vote_count: 8
first_action: "2023-02-16"
last_action: "2023-10-07"
source: "openstates"
source_identifier: "ocd-bill/837ce1c5-6ac2-4b4d-b7b0-2661a042d60b"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB1305"
source_hash: "6a779c7073e83f9e049315d0e41328ac00d09a83c37d3230013595f6268b2e11"
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 1305 (20232024) — Voluntary carbon market disclosures.

Existing law imposes various limitations on emissions of air contaminants for the control of air pollution from vehicular and nonvehicular sources.

## Version chain

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

1. **02/16/23 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1305&version=20230AB130599INT)
2. **04/18/23 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1305&version=20230AB130598AMD)
3. **06/15/23 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1305&version=20230AB130597AMD)
4. **07/03/23 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1305&version=20230AB130596AMD)
5. **08/30/23 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1305&version=20230AB130595AMD)
6. **09/08/23 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1305&version=20230AB130594AMD)
7. **10/07/23 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1305&version=20230AB130592CHP)
8. **AB1305** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB1305)
9. **09/18/23 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1305&version=20230AB130593ENR)

## Votes

- Do pass, but first be re-referred to the Committee on [Appropriations] — **9–2** (pass) · upper
- Do pass. — **11–4** (pass) · lower
- AB 1305 Gabriel Concurrence in Senate Amendments — **59–18** (pass) · lower
- Do pass as amended, but first amend, and re-refer to the Committee on [Judiciary] — **5–2** (pass) · upper
- 3rd Reading AB1305 Gabriel et al. By Limón — **28–8** (pass) · upper
- Do pass and be re-referred to the Committee on [Judiciary] — **8–1** (pass) · lower
- Do pass and be re-referred to the Committee on [Appropriations] — **8–2** (pass) · lower
- AB 1305 Gabriel Assembly Third Reading — **61–17** (pass) · lower

## Sponsors

- Gabriel — primary (person)
- Gonzalez — coauthor (person)
- Limón — coauthor (person)
- Stern — coauthor (person)
- Wiener — coauthor (person)

## Timeline

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

- **2023-02-16** Read first time. To print. `reading-1`
- **2023-02-17** From printer. May be heard in committee March 19.
- **2023-03-02** Referred to Coms. on NAT. RES. and JUD. `referral-committee`
- **2023-04-11** From committee: Do pass and re-refer to Com. on JUD. (Ayes 8. Noes 1.) (April 10). Re-referred to Com. on JUD. `committee-passage, committee-passage-favorable, referral-committee`
- **2023-04-18** From committee chair, with author's amendments: Amend, and re-refer to Com. on JUD. Read second time and amended. `amendment-introduction, amendment-passage, reading-1, reading-2`
- **2023-04-19** Re-referred to Com. on JUD. `referral-committee`
- **2023-04-25** From committee: Do pass and re-refer to Com. on APPR. (Ayes 8. Noes 2.) (April 25). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2023-05-10** In committee: Set, first hearing. Referred to APPR. suspense file. `referral-committee`
- **2023-05-18** From committee: Do pass. (Ayes 11. Noes 4.) (May 18). `committee-passage, committee-passage-favorable`
- **2023-05-18** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2023-05-30** Read third time. Passed. Ordered to the Senate. (Ayes 61. Noes 17. Page 1904.) `passage, reading-1, reading-3`
- **2023-05-31** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2023-06-07** Referred to Coms. on E.Q. and JUD. `referral-committee`
- **2023-06-15** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on E.Q. `amendment-introduction, amendment-passage, reading-1, reading-2, referral-committee`
- **2023-06-29** From committee: Amend, and do pass as amended and re-refer to Com. on JUD. (Ayes 5. Noes 2.) (June 28). `amendment-introduction, amendment-passage, committee-passage, referral-committee`
- **2023-07-03** Read second time and amended. Re-referred to Com. on JUD. `amendment-passage, reading-1, reading-2, referral-committee`
- **2023-07-12** From committee: Do pass and re-refer to Com. on APPR. (Ayes 9. Noes 2.) (July 11). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2023-08-14** From committee: Be ordered to second reading pursuant to Senate Rule 28.8. `committee-passage, reading-2`
- **2023-08-15** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2023-08-30** Read third time and amended. Ordered to second reading. `amendment-passage, reading-1, reading-3`
- **2023-08-31** 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 28. Noes 8. Page 2660.). `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 59. Noes 18. Page 3433.). `amendment-passage, committee-passage-favorable`
- **2023-09-21** Enrolled and presented to the Governor at 3:30 p.m.
- **2023-10-07** Approved by the Governor. `executive-signature`
- **2023-10-07** Chaptered by Secretary of State - Chapter 365, 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/837ce1c5-6ac2-4b4d-b7b0-2661a042d60b`. Confidence: reported (aggregated from official California legislature records).