republic-os/legislation/us/states/ca/20112012/sb-935.md

---
type: "Bill"
title: "Ballast water."
description: "The Marine Invasive Species Act, which generally applies to all vessels carrying or capable of carrying ballast water into the coastal waters of the state after operating outside of the coastal waters of the state and to all ballast water and associated sediments taken on a vessel, imposes specified requirements on the master, owner, operator, or person in charge of one of those vessels to minimize the uptake and release of nonindigenous species, including the removal of hull fouling organisms from the hull, piping, propellers, sea chests, and other submerged portions of a vessel on a regular basis, and the cleaning of the ballast tanks regularly to remove fouling organisms. The act defines terms for its purposes."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20112012"
identifier: "SB 935"
citation: "California SB 935 (20112012)"
classification: ["bill"]
subjects: ["Ballast water."]
status: "enacted"
primary_sponsors: ["Committee on Environmental Quality"]
version_count: 5
action_count: 35
vote_count: 8
first_action: "2011-03-14"
last_action: "2012-09-25"
source: "openstates"
source_identifier: "ocd-bill/6bb84eb0-f367-436b-84ce-b8e36334320c"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201120120SB935"
source_hash: "0aeb6bcebea5adb8df0136baa1f2f4410fb55e48d83ac0eeab41052206646f31"
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 SB 935 (20112012) — Ballast water.

The Marine Invasive Species Act, which generally applies to all vessels carrying or capable of carrying ballast water into the coastal waters of the state after operating outside of the coastal waters of the state and to all ballast water and associated sediments taken on a vessel, imposes specified requirements on the master, owner, operator, or person in charge of one of those vessels to minimize the uptake and release of nonindigenous species, including the removal of hull fouling organisms from the hull, piping, propellers, sea chests, and other submerged portions of a vessel on a regular basis, and the cleaning of the ballast tanks regularly to remove fouling organisms. The act defines terms for its purposes.

## Version chain

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

1. **03/14/11 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB935&version=20110SB93599INT)
2. **08/21/12 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB935&version=20110SB93598AMD)
3. **09/25/12 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB935&version=20110SB93596CHP)
4. **SB935** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201120120SB935)
5. **09/05/12 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201120120SB935&version=20110SB93597ENR)

## Votes

- Do pass, but re-refer to the Committee on Appropriations Recommend Consent. — **7–0** (pass) · upper
- Unfinished Business SB935 Committee on E.Q. — **24–0** (fail) · upper
- Consent Calendar 2nd SB935 Committee on E.Q. — **39–0** (pass) · upper
- Unfinished Business SB935 Committee on E.Q. (Simitian) Urgency Clause Concurrence — **38–0** (pass) · upper
- Do pass and re-refer to Committee on Appropriations with recommendation: To Consent Calendar. — **9–0** (pass) · lower
- Do pass, to Consent Calendar. — **16–0** (pass) · lower
- Unfinished Business SB935 Committee on E.Q. (Simitian) Reconsider — **38–0** (pass) · upper
- SB 935 E.Q. Third Reading Urgency By CHESBRO — **79–0** (pass) · lower

## Sponsors

- Committee on Environmental Quality — primary (person)

## Timeline

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

- **2011-03-14** Introduced. Read first time. To Com. on RLS. for assignment. To print. `introduction, reading-1`
- **2011-03-15** From printer. May be acted upon on or after April 14.
- **2011-03-24** Referred to Com. on E.Q. `referral-committee`
- **2011-04-14** Set for hearing May 2.
- **2011-05-03** From committee: Do pass and re-refer to Com. on APPR. with recommendation: To consent calendar. (Ayes 7. Noes 0. Page 857.) (May 2). Re-referred to Com. on APPR. `referral-committee, committee-passage, committee-passage-favorable`
- **2011-05-06** Set for hearing May 16.
- **2011-05-17** From committee: Be placed on second reading file pursuant to Senate Rule 28.8 and ordered to consent calendar. `committee-passage`
- **2011-05-18** Read second time. Ordered to consent calendar. `reading-2, reading-1`
- **2011-05-23** Read third time. Urgency clause adopted. Passed. (Ayes 39. Noes 0. Page 1063.) Ordered to the Assembly. `reading-3, reading-1, passage`
- **2011-05-23** In Assembly. Read first time. Held at Desk. `reading-1`
- **2011-06-16** Referred to Com. on E.S. & T.M. `referral-committee`
- **2011-06-29** From committee: Do pass and re-refer to Com. on APPR. with recommendation: To consent calendar. (Ayes 9. Noes 0.) (June 28). Re-referred to Com. on APPR. `referral-committee, committee-passage, committee-passage-favorable`
- **2011-07-13** From committee: Do pass. Ordered to consent calendar. (Ayes 16. Noes 0.) (July 13). `committee-passage, committee-passage-favorable`
- **2011-07-14** Read second time. Ordered to consent calendar. `reading-2, reading-1`
- **2011-08-15** From consent calendar.
- **2011-08-15** Ordered to third reading.
- **2011-08-15** Ordered to inactive file on request of Assembly Member Charles Calderon.
- **2011-08-29** Notice of intention to remove from inactive file given by Assembly Member Charles Calderon.
- **2011-08-30** From inactive file.
- **2011-08-30** Ordered to third reading.
- **2011-08-31** Ordered to inactive file on request of Assembly Member Charles Calderon.
- **2012-08-16** Notice of intention to remove from inactive file given by Assembly Member Charles Calderon.
- **2012-08-20** From inactive file.
- **2012-08-20** Ordered to third reading.
- **2012-08-21** Read third time and amended. (Page 6052.) `reading-3, reading-1, amendment-passage`
- **2012-08-21** Ordered to third reading.
- **2012-08-23** Read third time. Urgency clause adopted. Passed. (Ayes 79. Noes 0. Page 6189.) Ordered to the Senate. `reading-3, reading-1, passage`
- **2012-08-24** In Senate. Concurrence in Assembly amendments pending.
- **2012-08-27** Senate refused to concur in Assembly amendments. (Ayes 24. Noes 0. Page 4868.) `committee-failure, amendment-failure`
- **2012-08-27** Motion to reconsider made by Senator Simitian.
- **2012-08-27** Reconsideration granted. (Ayes 38. Noes 0. Page 4868.)
- **2012-08-31** Assembly amendments concurred in. (Ayes 38. Noes 0. Page 5060.) Ordered to engrossing and enrolling. `committee-passage-favorable, amendment-passage`
- **2012-09-10** Enrolled and presented to the Governor at 9:45 a.m.
- **2012-09-25** Approved by the Governor. `executive-signature`
- **2012-09-25** Chaptered by Secretary of State. Chapter 550, Statutes of 2012.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/6bb84eb0-f367-436b-84ce-b8e36334320c`. Confidence: reported (aggregated from official California legislature records).