---
type: "Bill"
title: "Sex offenders: registration."
description: "Sex offenders: registration."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20012002"
identifier: "AB 4"
citation: "California AB 4 (20012002)"
classification: ["bill"]
subjects: ["Sex offenders: registration."]
status: "enacted"
primary_sponsors: ["Bates"]
version_count: 9
action_count: 25
vote_count: 8
first_action: "2000-12-04"
last_action: "2001-10-07"
source: "openstates"
source_identifier: "ocd-bill/a12e3438-7e80-4fc0-8cb8-38da99b050ef"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200120020AB4"
source_hash: "c271a18cc7d08ea6d04fdcf9104c74c2d6da6624390ee4b765894da0b56af35a"
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 4 (20012002) — Sex offenders: registration.

## Version chain

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

1. **12/04/00 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB4&version=20010AB499INT)
2. **04/17/01 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB4&version=20010AB498AMD)
3. **05/15/01 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB4&version=20010AB497AMD)
4. **07/02/01 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB4&version=20010AB496AMD)
5. **07/18/01 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB4&version=20010AB495AMD)
6. **09/10/01 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB4&version=20010AB494AMD)
7. **10/07/01 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB4&version=20010AB492CHP)
8. **AB4** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200120020AB4)
9. **09/14/01 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB4&version=20010AB493ENR)

## Votes

- Do pass as amended and be re-referred to the Committee on Appropriations. — **pass** (pass) · lower
- Do pass as amended. — **pass** (pass) · lower
- AB4 Bates Special Consent Calendar 1st Day — **pass** (pass) · lower
- Placed on Appropriations Suspense file. — **pass** (pass) · upper
- AB4 Bates Assembly Third Reading — **pass** (pass) · lower
- Do pass as amended, and re-refer to the Committee on Appropriations. — **pass** (pass) · upper
- Assembly 3rd Reading AB4 Bates — **pass** (pass) · upper
- Do pass. — **pass** (pass) · upper

## Sponsors

- Bates — primary (person)
- Cardoza — author (person)
- Chavez — coauthor (person)
- Maldonado — coauthor (person)
- Margett — coauthor (person)

## Timeline

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

- **2001-10-07** Chaptered by Secretary of State - Chapter 544, Statutes of 2001.
- **2001-10-05** Approved by the Governor. `executive-signature`
- **2001-10-01** Enrolled and to the Governor at 2:30 p.m.
- **2001-09-14** Senate amendments concurred in. To enrollment. (Ayes 79. Noes 0. Page 3981.) `committee-passage-favorable, amendment-passage`
- **2001-09-13** In Assembly. Concurrence in Senate amendments pending. Ordered to Special Consent Calendar.
- **2001-09-13** Read third time, passed, and to Assembly. (Ayes 34. Noes 0. Page 2866.) `passage, reading-1, reading-3`
- **2001-09-12** Read second time. To third reading. `reading-2, reading-1`
- **2001-09-10** Read third time, amended. To second reading. `reading-1, amendment-passage, reading-3`
- **2001-09-06** From committee: Do pass. (Ayes 10. Noes 0.). Read second time. To third reading. `reading-2, committee-passage-favorable, reading-1, committee-passage`
- **2001-08-20** In committee: Placed on Appropriations suspense file.
- **2001-07-18** Read second time, amended, and re-referred to Standing Committee on Appropriations. `reading-2, reading-1, referral-committee, amendment-passage`
- **2001-07-17** From committee: Amend, do pass as amended, and re-refer to Standing Committee on Appropriations (Ayes 6. Noes 0.). `amendment-introduction, referral-committee, committee-passage, amendment-passage`
- **2001-07-02** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Standing Committee on Public Safety. `reading-1, referral-committee, reading-2, amendment-introduction, amendment-passage`
- **2001-05-31** Referred to Standing Committee on Public Safety. `referral-committee`
- **2001-05-21** In Senate. Read first time. To Standing Committee on Rules for assignment. `reading-1`
- **2001-05-21** Read third time, passed, and to Senate. (Ayes 74. Noes 0. Page 1726.) `passage, reading-1, reading-3`
- **2001-05-16** Read second time. To third reading. `reading-2, reading-1`
- **2001-05-15** Read second time and amended. Ordered returned to second reading. `reading-2, amendment-passage, reading-1`
- **2001-05-14** From committee: Amend, and do pass as amended. (Ayes 16. Noes 0.) (May 9). `amendment-introduction, committee-passage, amendment-passage`
- **2001-04-24** Re-referred to Standing Committee on Appropriations. `referral-committee`
- **2001-04-17** Read second time and amended. `reading-2, amendment-passage, reading-1`
- **2001-04-16** From committee: Amend, do pass as amended, and re-refer to Standing Committee on Appropriations (Ayes 7. Noes 0.) (April 3). `amendment-introduction, referral-committee, committee-passage, amendment-passage`
- **2001-02-01** Referred to Standing Committee on Public Safety. `referral-committee`
- **2000-12-05** From printer. May be heard in committee January 4.
- **2000-12-04** 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/a12e3438-7e80-4fc0-8cb8-38da99b050ef`. Confidence: reported (aggregated from official California legislature records).