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2026-07-06 17:28:36 -04:00

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---
type: "Bill"
title: "Mercury-containing vaccines."
description: "Mercury-containing vaccines."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20032004"
identifier: "AB 2943"
citation: "California AB 2943 (20032004)"
classification: ["bill"]
subjects: ["Mercury-containing vaccines."]
status: "enacted"
primary_sponsors: ["Pavley"]
version_count: 11
action_count: 30
vote_count: 5
first_action: "2004-02-20"
last_action: "2004-09-28"
source: "openstates"
source_identifier: "ocd-bill/d721860b-cdc7-400d-9707-a759c500e4d5"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200320040AB2943"
source_hash: "60a1080173eda18edaef859271a60706a4a4a42122e62328d3d6ec9f004dfbdf"
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 2943 (20032004) — Mercury-containing vaccines.
## Version chain
The bill's text revisions, in order — the diff chain from filing to enrollment.
1. **02/20/04 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2943&version=20030AB294399INT)
2. **04/01/04 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2943&version=20030AB294398AMD)
3. **04/12/04 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2943&version=20030AB294397AMD)
4. **04/20/04 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2943&version=20030AB294396AMD)
5. **05/12/04 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2943&version=20030AB294395AMD)
6. **05/20/04 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2943&version=20030AB294394AMD)
7. **07/01/04 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2943&version=20030AB294393AMD)
8. **08/19/04 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2943&version=20030AB294392AMD)
9. **09/28/04 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2943&version=20030AB294390CHP)
10. **AB2943** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200320040AB2943)
11. **08/26/04 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200320040AB2943&version=20030AB294391ENR)
## Votes
- Do pass as amended, and re-refer to the Committee on Appropriations. — **pass** (pass) · legislature
- do pass as amended. — **pass** (pass) · lower
- assembly 3rd reading ab2943 pavley by kuehl — **pass** (pass) · upper
- Do pass as amended and be re-referred to the Committee on Appropriations. — **pass** (pass) · lower
- ab 2943 pavley assembly third reading — **pass** (pass) · lower
## Sponsors
- Pavley — primary (person)
- Jackson — coauthor (person)
- Levine — coauthor (person)
- Lieber — coauthor (person)
- Romero — coauthor (person)
## Timeline
The legislative action history — every referral, reading, and vote.
- **2004-09-28** Chaptered by Secretary of State - Chapter 837, Statutes of 2004.
- **2004-09-28** Approved by the Governor. `executive-signature`
- **2004-09-15** Enrolled and to the Governor at 2 p.m.
- **2004-08-26** Senate amendments concurred in. To enrollment. (Ayes 51. Noes 26. Page 7808.) `committee-passage-favorable, amendment-passage`
- **2004-08-25** Assembly Rule 77 suspended. (Page 7721.)
- **2004-08-24** In Assembly. Concurrence in Senate amendments pending. May be considered on or after August 26 pursuant to Assembly Rule 77.
- **2004-08-24** Read third time, passed, and to Assembly. (Ayes 22. Noes 13. Page 5295.) `reading-3, passage, reading-1`
- **2004-08-23** Read second time. To third reading. `reading-2, reading-1`
- **2004-08-19** Read third time, amended. To second reading. `reading-3, amendment-passage, reading-1`
- **2004-08-09** Read second time. To third reading. `reading-2, reading-1`
- **2004-08-05** From committee: Be placed on second reading file pursuant to Senate Rule 28.8. `committee-passage`
- **2004-07-29** In committee: Hearing postponed by committee.
- **2004-07-01** Read second time, amended, and re-referred to Standing Committee on Appropriations. `reading-2, referral-committee, amendment-passage, reading-1`
- **2004-06-30** From committee: Amend, do pass as amended, and re-refer to Standing Committee on Appropriations (Ayes 10. Noes 2.). `referral-committee, amendment-passage, amendment-introduction, committee-passage`
- **2004-06-09** Referred to Com. on H. & H.S. `referral-committee`
- **2004-05-27** In Senate. Read first time. To Standing Committee on Rules for assignment. `reading-1`
- **2004-05-26** Read third time, passed, and to Senate. (Ayes 49. Noes 22. Page 6087.) `reading-3, passage, reading-1`
- **2004-05-24** Read second time. To third reading. `reading-2, reading-1`
- **2004-05-20** From committee: Amend, and do pass as amended. (Ayes 16. Noes 5.) (May 19). Read second time and amended. Ordered returned to second reading. `amendment-passage, amendment-introduction, reading-2, committee-passage, reading-1`
- **2004-05-19** In committee: Set, first hearing. Referred to Standing Committee on Appropriations suspense file. `referral-committee`
- **2004-05-13** Re-referred to Standing Committee on Appropriations. `referral-committee`
- **2004-05-12** From committee chair, with author's amendments: Amend, and re-refer to Standing Committee on Appropriations Read second time and amended. `referral-committee, amendment-passage, amendment-introduction, reading-2, reading-1`
- **2004-04-21** Re-referred to Standing Committee on Appropriations. `referral-committee`
- **2004-04-20** Read second time and amended. `reading-2, amendment-passage, reading-1`
- **2004-04-19** From committee: Amend, do pass as amended, and re-refer to Standing Committee on Appropriations (Ayes 5. Noes 2.) (April 13). `referral-committee, amendment-passage, amendment-introduction, committee-passage`
- **2004-04-12** Re-referred to Standing Committee on Environmental Safety and Toxic Materials From committee chair, with author's amendments: Amend, and re-refer to Standing Committee on Environmental Safety and Toxic Materials Read second time and amended. Re-referred to Standing Committee on Environmental Safety and Toxic Materials. `referral-committee, amendment-passage, amendment-introduction, reading-2, reading-1`
- **2004-04-01** From committee chair, with author's amendments: Amend, and re-refer to Standing Committee on Environmental Safety and Toxic Materials Read second time and amended. `referral-committee, amendment-passage, amendment-introduction, reading-2, reading-1`
- **2004-03-15** Referred to Standing Committee on Environmental Safety and Toxic Materials. `referral-committee`
- **2004-02-22** From printer. May be heard in committee March 23.
- **2004-02-20** Read first time. To print. `reading-1`
## Source
OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/d721860b-cdc7-400d-9707-a759c500e4d5`. Confidence: reported (aggregated from official California legislature records).