---
type: "Bill"
title: "Invasive aquatic species: dreissenid mussels."
description: "Invasive aquatic species: dreissenid mussels."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20072008"
identifier: "AB 2065"
citation: "California AB 2065 (20072008)"
classification: ["bill"]
subjects: ["Invasive aquatic species: dreissenid mussels."]
status: "enacted"
primary_sponsors: ["Hancock"]
version_count: 10
action_count: 31
vote_count: 7
first_action: "2008-02-19"
last_action: "2008-09-30"
source: "openstates"
source_identifier: "ocd-bill/90b01161-6fb0-469d-bd60-d619a037fc5b"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200720080AB2065"
source_hash: "61a9eca34f3f95c9a7b34b139def8a9f49f6b0611e91bcb6b722d67ffd419753"
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 2065 (20072008) — Invasive aquatic species: dreissenid mussels.

## Version chain

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

1. **02/19/08 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB2065&version=20070AB206599INT)
2. **03/24/08 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB2065&version=20070AB206598AMD)
3. **04/09/08 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB2065&version=20070AB206597AMD)
4. **06/02/08 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB2065&version=20070AB206596AMD)
5. **06/17/08 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB2065&version=20070AB206595AMD)
6. **07/02/08 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB2065&version=20070AB206594AMD)
7. **08/20/08 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB2065&version=20070AB206593AMD)
8. **09/30/08 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB2065&version=20070AB206591CHP)
9. **AB2065** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200720080AB2065)
10. **09/03/08 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB2065&version=20070AB206592ENR)

## Votes

- Do pass. — **pass** (pass) · upper
- Do pass, to Consent Calendar. — **pass** (pass) · lower
- Do pass as amended, and re-refer to the Committee on Appropriations. — **pass** (pass) · upper
- AB 2065 HANCOCK Concurrence in Senate Amendments — **pass** (pass) · lower
- AB 2065 HANCOCK Assembly Third Reading — **pass** (pass) · lower
- Assembly 3rd Reading AB2065 Hancock By Machado — **pass** (pass) · upper
- Do pass and be re-referred to the Committee on Appropriations. — **pass** (pass) · lower

## Sponsors

- Hancock — primary (person)

## Timeline

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

- **2008-02-19** Read first time. To print. `reading-1`
- **2008-02-20** From printer. May be heard in committee March 21.
- **2008-02-28** Referred to Standing Committee on Water, Parks and Wildlife. `referral-committee`
- **2008-03-24** From committee chair, with author's amendments: Amend, and re-refer to Standing Committee on Water, Parks and Wildlife Read second time and amended. `reading-1, reading-2, amendment-passage, amendment-introduction, referral-committee`
- **2008-03-25** Re-referred to Standing Committee on Water, Parks and Wildlife. `referral-committee`
- **2008-04-02** From committee: Do pass, and re-refer to Standing Committee on Appropriations Re-referred. (Ayes 11. Noes 0.) (April 1). `committee-passage, committee-passage-favorable, referral-committee`
- **2008-04-09** In committee: Hearing postponed by committee.
- **2008-04-09** From committee chair, with author's amendments: Amend, and re-refer to Standing Committee on Appropriations Read second time and amended. `reading-1, reading-2, amendment-passage, amendment-introduction, referral-committee`
- **2008-04-10** Re-referred to Standing Committee on Appropriations. `referral-committee`
- **2008-04-16** From committee: Do pass. To Consent Calendar. (April 16). `committee-passage, committee-passage-favorable`
- **2008-04-17** Read second time. To Consent Calendar. `reading-1, reading-2`
- **2008-04-21** From Consent Calendar. To third reading pursuant to Joint Rule 22.2.
- **2008-05-05** Read third time, passed, and to Senate. (Ayes 63. Noes 12. Page 4972.) `passage, reading-1, reading-3`
- **2008-05-05** In Senate. Read first time. To Standing Committee on Rules for assignment. `reading-1`
- **2008-05-15** Referred to Standing Committee on Natural Resources And Water. `referral-committee`
- **2008-06-02** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Standing Committee on Natural Resources And Water. `reading-1, reading-2, amendment-introduction, referral-committee, amendment-passage`
- **2008-06-16** From committee: Amend, do pass as amended, and re-refer to Standing Committee on Appropriations (Ayes 7. Noes 0.) . `amendment-introduction, committee-passage, amendment-passage, referral-committee`
- **2008-06-17** Read second time, amended, and re-referred to Standing Committee on Appropriations. `reading-2, reading-1, amendment-passage, referral-committee`
- **2008-06-26** In committee: Set, first hearing. Hearing canceled at the request of author.
- **2008-07-02** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Standing Committee on Appropriations. `reading-1, reading-2, amendment-introduction, referral-committee, amendment-passage`
- **2008-07-07** From committee: Do pass. (Ayes 14. Noes 0.) . `committee-passage, committee-passage-favorable`
- **2008-07-10** Read second time. To third reading. `reading-1, reading-2`
- **2008-08-20** Read third time, amended. To second reading. `reading-1, reading-3, amendment-passage`
- **2008-08-21** Read second time. To third reading. `reading-1, reading-2`
- **2008-08-26** Read third time, passed, and to Assembly. (Ayes 34. Noes 1. Page 5371.) `passage, reading-1, reading-3`
- **2008-08-27** In Assembly. Concurrence in Senate amendments pending. May be considered on or after August 29 pursuant to Assembly Rule 77.
- **2008-08-28** Assembly Rule 77 suspended. (Page 6912.)
- **2008-08-28** Senate amendments concurred in. To enrollment. (Ayes 71. Noes 5. Page 6929.) `committee-passage-favorable, amendment-passage`
- **2008-09-18** Enrolled and to the Governor at 11 a.m.
- **2008-09-30** Approved by the Governor. `executive-signature`
- **2008-09-30** Chaptered by Secretary of State - Chapter 667, Statutes of 2008.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/90b01161-6fb0-469d-bd60-d619a037fc5b`. Confidence: reported (aggregated from official California legislature records).