---
type: "Bill"
title: "Property taxation: audits and equalization."
description: "Property taxation: audits and equalization."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20012002"
identifier: "AB 645"
citation: "California AB 645 (20012002)"
classification: ["bill"]
subjects: ["Property taxation: audits and equalization."]
status: "enacted"
primary_sponsors: ["Horton"]
version_count: 6
action_count: 21
vote_count: 7
first_action: "2001-02-22"
last_action: "2001-09-04"
source: "openstates"
source_identifier: "ocd-bill/07baa2b3-065a-4af8-bc5e-fc078bcd6561"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200120020AB645"
source_hash: "50f6eb3c7fab9d64c75d79363b901216bef4dac5ef890c2d497e5b2ef9f46ded"
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 645 (20012002) — Property taxation: audits and equalization.

## Version chain

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

1. **02/22/01 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB645&version=20010AB64599INT)
2. **04/26/01 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB645&version=20010AB64598AMD)
3. **06/20/01 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB645&version=20010AB64597AMD)
4. **09/04/01 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB645&version=20010AB64595CHP)
5. **AB645** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200120020AB645)
6. **08/20/01 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB645&version=20010AB64596ENR)

## Votes

- Do pass as amended and be re-referred to the Committee on Appropriations. — **pass** (pass) · lower
- Do pass, but re-refer to the Committee on Appropriations. — **pass** (pass) · upper
- Special Consent #23 AB645 Horton — **pass** (pass) · upper
- AB 645 Horton Consent Calendar Second Day Regular Session — **pass** (pass) · lower
- Do pass, to Consent Calendar. — **pass** (pass) · lower
- AB 645 Horton Concurrence in Senate Amendments — **pass** (pass) · lower
- Do pass. — **pass** (pass) · upper

## Sponsors

- Horton — primary (person)

## Timeline

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

- **2001-09-04** Chaptered by Secretary of State - Chapter 238, Statutes of 2001.
- **2001-09-04** Approved by the Governor. `executive-signature`
- **2001-08-23** Enrolled and to the Governor at 4 p.m.
- **2001-08-20** Senate amendments concurred in. To enrollment. (Ayes 75. Noes 0. Page 3070.) `committee-passage-favorable, amendment-passage`
- **2001-07-23** In Assembly. Concurrence in Senate amendments pending. May be considered on or after July 25 pursuant to Assembly Rule 77.
- **2001-07-21** Read third time, passed, and to Assembly. (Ayes 39. Noes 0. Page 2177.) `passage, reading-1, reading-3`
- **2001-07-17** Read second time. To third reading. `reading-2, reading-1`
- **2001-07-16** From committee: Do pass. (Ayes 10. Noes 0.). `committee-passage-favorable, committee-passage`
- **2001-06-28** From committee: Do pass, and re-refer to Standing Committee on Appropriations Re-referred. (Ayes 4. Noes 0.). `committee-passage-favorable, referral-committee, committee-passage`
- **2001-06-20** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Standing Committee on Revenue and Taxation. `reading-1, referral-committee, reading-2, amendment-introduction, amendment-passage`
- **2001-06-05** Referred to Standing Committee on Revenue and Taxation. `referral-committee`
- **2001-05-24** In Senate. Read first time. To Standing Committee on Rules for assignment. `reading-1`
- **2001-05-24** Read third time, passed, and to Senate. (Ayes 75. Noes 0. Page 1801.) `passage, reading-1, reading-3`
- **2001-05-21** Read second time. To Consent Calendar. `reading-2, reading-1`
- **2001-05-17** From committee: Do pass. To Consent Calendar. (May 16). `committee-passage-favorable, committee-passage`
- **2001-05-01** Re-referred to Standing Committee on Appropriations. `referral-committee`
- **2001-04-26** Read second time and amended. `reading-2, amendment-passage, reading-1`
- **2001-04-25** From committee: Amend, do pass as amended, and re-refer to Standing Committee on Appropriations (Ayes 8. Noes 0.) (April 16). `amendment-introduction, referral-committee, committee-passage, amendment-passage`
- **2001-03-08** Referred to Standing Committee on Revenue and Taxation. `referral-committee`
- **2001-02-23** From printer. May be heard in committee March 25.
- **2001-02-22** 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/07baa2b3-065a-4af8-bc5e-fc078bcd6561`. Confidence: reported (aggregated from official California legislature records).