---
type: "Bill"
title: "Income taxes: voluntary contributions: Municipal Shelter Spay-Neuter Fund."
description: "Existing income tax laws allow individual taxpayers to contribute amounts in excess of their tax liability for the support of specified funds."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20112012"
identifier: "AB 564"
citation: "California AB 564 (20112012)"
classification: ["bill"]
subjects: ["Income taxes: voluntary contributions: Municipal Shelter Spay-Neuter Fund."]
status: "enacted"
primary_sponsors: ["Smyth"]
version_count: 6
action_count: 22
vote_count: 6
first_action: "2011-02-16"
last_action: "2011-10-07"
source: "openstates"
source_identifier: "ocd-bill/d5fa921a-7a19-4f91-927a-8fc69760bbe2"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201120120AB564"
source_hash: "0211c8d1d3987883e46583b8bdaf4daf28f41e2147474a2a3c7bd6f10d11c47a"
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 564 (20112012) — Income taxes: voluntary contributions: Municipal Shelter Spay-Neuter Fund.

Existing income tax laws allow individual taxpayers to contribute amounts in excess of their tax liability for the support of specified funds.

## Version chain

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

1. **02/16/11 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120AB564&version=20110AB56499INT)
2. **04/06/11 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120AB564&version=20110AB56498AMD)
3. **06/30/11 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120AB564&version=20110AB56497AMD)
4. **10/07/11 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120AB564&version=20110AB56495CHP)
5. **AB564** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201120120AB564)
6. **09/06/11 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120AB564&version=20110AB56496ENR)

## Votes

- Do pass. — **17–0** (pass) · lower
- AB 564 SMYTH Concurrence in Senate Amendments — **76–2** (pass) · lower
- AB 564 SMYTH Assembly Third Reading — **74–2** (pass) · lower
- 3rd Reading AB564 Smyth By Hancock — **31–4** (pass) · upper
- Do pass as amended, and re-refer to the Committee on Appropriations. — **8–1** (pass) · upper
- Do pass as amended and be re-referred to the Committee on Appropriations. — **9–0** (pass) · lower

## Sponsors

- Smyth — primary (person)
- Blumenfield — coauthor (person)
- Galgiani — author (person)
- Garrick — coauthor (person)
- Harman — coauthor (person)
- Solorio — coauthor (person)

## Timeline

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

- **2011-02-16** Read first time. To print. `reading-1`
- **2011-02-17** From printer. May be heard in committee March 19.
- **2011-03-03** Referred to Com. on REV. & TAX. `referral-committee`
- **2011-04-05** From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 9. Noes 0.) (April 4). `amendment-passage, committee-passage, committee-passage-favorable`
- **2011-04-06** Read second time and amended. `reading-2, reading-1, amendment-passage`
- **2011-04-07** Re-referred to Com. on APPR. `referral-committee`
- **2011-05-04** In committee: Set, first hearing. Referred to APPR. suspense file. `referral-committee`
- **2011-05-27** From committee: Do pass. (Ayes 17. Noes 0.) (May 27). `committee-passage, committee-passage-favorable`
- **2011-05-27** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2011-05-31** Read third time. Passed. Ordered to the Senate. (Ayes 74. Noes 2. Page 1669.) `reading-3, reading-1, passage`
- **2011-05-31** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2011-06-08** Referred to Com. on GOV. & F. `referral-committee`
- **2011-06-29** From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 8. Noes 1.) (June 29). `amendment-passage, committee-passage, committee-passage-favorable`
- **2011-06-30** Read second time and amended. Re-referred to Com. on APPR. `reading-2, reading-1, amendment-passage, referral-committee`
- **2011-08-15** From committee: Be placed on second reading file pursuant to Senate Rule 28.8. `committee-passage`
- **2011-08-16** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2011-08-29** Read third time. Passed. Ordered to the Assembly. (Ayes 31. Noes 4. Page 2080.). `reading-3, reading-1, passage`
- **2011-08-29** In Assembly. Concurrence in Senate amendments pending. May be considered on or after August 31 pursuant to Assembly Rule 77.
- **2011-08-31** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 76. Noes 2. Page 2724.). `committee-passage-favorable, amendment-passage`
- **2011-09-07** Enrolled and presented to the Governor at 3:30 p.m.
- **2011-10-07** Approved by the Governor. `executive-signature`
- **2011-10-07** Chaptered by Secretary of State - Chapter 549, Statutes of 2011.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/d5fa921a-7a19-4f91-927a-8fc69760bbe2`. Confidence: reported (aggregated from official California legislature records).