republic-os/legislation/us/states/ca/20232024/ab-1963.md

---
type: "Bill"
title: "Pesticides: paraquat dichloride."
description: "Existing law regulates the use of pesticides and authorizes the Director of Pesticide Regulation to adopt regulations to govern the possession, sale, or use of specified pesticides, as prescribed. Existing law requires the director to endeavor to eliminate from use in the state any pesticide that, among other things, endangers the agricultural or nonagriculutral environment. Existing law requires the director to develop an orderly program for the continuous evaluation of all pesticides actually registered. Existing law authorizes the director, after a hearing, to cancel the registration of any pesticide that, among other things, is detrimental to vegetation, except weeds, to domestic animals, or to the public health and safety when properly used."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20232024"
identifier: "AB 1963"
citation: "California AB 1963 (20232024)"
classification: ["bill"]
subjects: ["Pesticides", "paraquat dichloride"]
status: "enacted"
primary_sponsors: ["Friedman"]
version_count: 12
action_count: 35
vote_count: 9
first_action: "2024-01-29"
last_action: "2024-09-27"
source: "openstates"
source_identifier: "ocd-bill/7f39f68c-eea8-4650-8eed-fc89523d0397"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB1963"
source_hash: "b0606e657429bd1327e81f8d4060896ed6c7241edd4d85596d9dbde81f546fe4"
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 1963 (20232024) — Pesticides: paraquat dichloride.

Existing law regulates the use of pesticides and authorizes the Director of Pesticide Regulation to adopt regulations to govern the possession, sale, or use of specified pesticides, as prescribed. Existing law requires the director to endeavor to eliminate from use in the state any pesticide that, among other things, endangers the agricultural or nonagriculutral environment. Existing law requires the director to develop an orderly program for the continuous evaluation of all pesticides actually registered. Existing law authorizes the director, after a hearing, to cancel the registration of any pesticide that, among other things, is detrimental to vegetation, except weeds, to domestic animals, or to the public health and safety when properly used.

## Version chain

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

1. **01/29/24 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1963&version=20230AB196399INT)
2. **04/02/24 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1963&version=20230AB196398AMD)
3. **04/11/24 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1963&version=20230AB196397AMD)
4. **04/25/24 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1963&version=20230AB196396AMD)
5. **06/06/24 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1963&version=20230AB196395AMD)
6. **06/20/24 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1963&version=20230AB196394AMD)
7. **07/03/24 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1963&version=20230AB196393AMD)
8. **08/19/24 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1963&version=20230AB196392AMD)
9. **08/23/24 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1963&version=20230AB196391AMD)
10. **09/27/24 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1963&version=20230AB196389CHP)
11. **AB1963** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB1963)
12. **09/03/24 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240AB1963&version=20230AB196390ENR)

## Votes

- Placed on suspense file — **7–0** (pass) · upper
- AB 1963 Friedman Assembly Third Reading — **46–16** (pass) · lower
- Do pass as amended and be re-referred to the Committee on [Appropriations] — **5–2** (pass) · lower
- AB 1963 Friedman Concurrence in Senate Amendments — **51–16** (pass) · lower
- 3rd Reading AB1963 Friedman et al. By Cortese — **29–8** (pass) · upper
- Do pass as amended, but first amend, and re-refer to the Committee on [Agriculture] — **4–3** (pass) · upper
- Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — **3–0** (pass) · upper
- Do pass. — **11–4** (pass) · lower
- Do pass — **4–2** (pass) · upper

## Sponsors

- Friedman — primary (person)
- Arambula — coauthor (person)
- Zbur — coauthor (person)

## Timeline

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

- **2024-01-29** Read first time. To print. `reading-1`
- **2024-01-30** From printer. May be heard in committee February 29.
- **2024-02-12** Referred to Com. on E.S. & T.M. `referral-committee`
- **2024-04-02** From committee chair, with author's amendments: Amend, and re-refer to Com. on E.S. & T.M. Read second time and amended. `amendment-introduction, amendment-passage, reading-1, reading-2`
- **2024-04-03** Re-referred to Com. on E.S. & T.M. `referral-committee`
- **2024-04-11** From committee chair, with author's amendments: Amend, and re-refer to Com. on E.S. & T.M. Read second time and amended. `amendment-introduction, amendment-passage, reading-1, reading-2`
- **2024-04-15** Re-referred to Com. on E.S. & T.M. `referral-committee`
- **2024-04-24** From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 5. Noes 2.) (April 23). `amendment-introduction, amendment-passage, committee-passage, referral-committee`
- **2024-04-25** Read second time and amended. `amendment-passage, reading-1, reading-2`
- **2024-04-29** Re-referred to Com. on APPR. `referral-committee`
- **2024-05-08** In committee: Set, first hearing. Referred to APPR. suspense file. `referral-committee`
- **2024-05-16** From committee: Do pass. (Ayes 11. Noes 4.) (May 16). `committee-passage, committee-passage-favorable`
- **2024-05-20** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2024-05-23** Read third time. Passed. Ordered to the Senate. (Ayes 46. Noes 16. Page 5617.) `passage, reading-1, reading-3`
- **2024-05-24** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2024-06-05** Referred to Coms. on E.Q. and AGRI. `referral-committee`
- **2024-06-06** 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`
- **2024-06-19** From committee: Amend, and do pass as amended and re-refer to Com. on AGRI. (Ayes 4. Noes 3.) (June 19). `amendment-introduction, amendment-passage, committee-passage, referral-committee`
- **2024-06-20** Read second time and amended. Re-referred to Com. on AGRI. `amendment-passage, reading-1, reading-2, referral-committee`
- **2024-07-02** From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 3. Noes 0.) (July 2). `amendment-introduction, amendment-passage, committee-passage, referral-committee`
- **2024-07-03** Read second time and amended. Re-referred to Com. on APPR. `amendment-passage, reading-1, reading-2, referral-committee`
- **2024-08-05** In committee: Referred to APPR suspense file. `referral-committee`
- **2024-08-15** From committee: Do pass. (Ayes 4. Noes 2.) (August 15). `committee-passage, committee-passage-favorable`
- **2024-08-19** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2024-08-19** Read third time and amended. Ordered to second reading. `amendment-passage, reading-1, reading-3`
- **2024-08-20** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2024-08-23** Read third time and amended. Ordered to second reading. `amendment-passage, reading-1, reading-3`
- **2024-08-26** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2024-08-28** Read third time. Passed. Ordered to the Assembly. (Ayes 29. Noes 8.). `passage, reading-1, reading-3`
- **2024-08-28** In Assembly. Concurrence in Senate amendments pending. May be considered on or after August 30 pursuant to Assembly Rule 77.
- **2024-08-29** Assembly Rule 77 suspended.
- **2024-08-29** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 51. Noes 16.). `amendment-passage, committee-passage-favorable`
- **2024-09-11** Enrolled and presented to the Governor at 4 p.m.
- **2024-09-27** Approved by the Governor. `executive-signature`
- **2024-09-27** Chaptered by Secretary of State - Chapter 688, Statutes of 2024. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/7f39f68c-eea8-4650-8eed-fc89523d0397`. Confidence: reported (aggregated from official California legislature records).