---
type: "Bill"
title: "Crimes: vehicular manslaughter while intoxicated."
description: "Existing law prohibits operating a vehicle while under the influence of alcohol or drugs, as specified. Under existing law, if a person is convicted of driving under the influence and is granted probation, the period of probation shall be for not less than 3 years and not more than 5 years, unless the maximum prison sentence for the offense is greater than 5 years, in which case the period of probation may be longer."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20252026"
identifier: "AB 1087"
citation: "California AB 1087 (20252026)"
classification: ["bill"]
subjects: ["Crimes", "vehicularmanslaughterwhileintoxicated"]
status: "enacted"
primary_sponsors: ["Patterson"]
version_count: 5
action_count: 22
vote_count: 7
first_action: "2025-02-20"
last_action: "2025-10-01"
source: "openstates"
source_identifier: "ocd-bill/ea15f96a-9b2f-4453-92a7-d7eaa4ecc804"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202520260AB1087"
source_hash: "0f38953e5d65dcb1921c5e04f6d78dbcd3f491ba643df02e9d7e40f628c39d72"
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 1087 (20252026) — Crimes: vehicular manslaughter while intoxicated.

Existing law prohibits operating a vehicle while under the influence of alcohol or drugs, as specified. Under existing law, if a person is convicted of driving under the influence and is granted probation, the period of probation shall be for not less than 3 years and not more than 5 years, unless the maximum prison sentence for the offense is greater than 5 years, in which case the period of probation may be longer.

## Version chain

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

1. **02/20/25 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1087&version=20250AB108799INT)
2. **04/28/25 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1087&version=20250AB108798AMD)
3. **10/01/25 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1087&version=20250AB108796CHP)
4. **AB1087** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202520260AB1087)
5. **09/08/25 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202520260AB1087&version=20250AB108797ENR)

## Votes

- Placed on suspense file — **7–0** (pass) · upper
- Special Consent AB1087 Patterson By Niello — **39–0** (pass) · upper
- Do pass. — **14–0** (pass) · lower
- Do pass — **7–0** (pass) · upper
- Do pass as amended, and be re-referred to the Committee on [Appropriations] with recommendation: To Consent Calendar — **9–0** (pass) · lower
- Do pass, but first be re-referred to the Committee on [Appropriations] with the recommendation: To Consent Calendar — **6–0** (pass) · upper
- AB 1087 Patterson Assembly Third Reading — **78–0** (pass) · lower

## Sponsors

- Patterson — primary (person)

## Timeline

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

- **2025-02-20** Read first time. To print. `reading-1`
- **2025-02-21** From printer. May be heard in committee March 23.
- **2025-03-10** Referred to Com. on PUB. S. `referral-committee`
- **2025-04-24** From committee: Amend, and do pass as amended and re-refer to Com. on APPR. with recommendation: To Consent Calendar. (Ayes 9. Noes 0.) (April 22). `amendment-introduction, amendment-passage, committee-passage, referral-committee`
- **2025-04-28** Read second time and amended. `amendment-passage, reading-1, reading-2`
- **2025-04-29** Re-referred to Com. on APPR. `referral-committee`
- **2025-05-07** In committee: Set, first hearing. Referred to APPR. suspense file. `referral-committee`
- **2025-05-23** From committee: Do pass. (Ayes 14. Noes 0.) (May 23). `committee-passage, committee-passage-favorable`
- **2025-05-27** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2025-06-05** Read third time. Passed. Ordered to the Senate. (Ayes 78. Noes 0. Page 2110.) `passage, reading-1, reading-3`
- **2025-06-09** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2025-06-18** Referred to Com. on PUB. S. `referral-committee`
- **2025-07-08** From committee: Do pass and re-refer to Com. on APPR. with recommendation: To Consent Calendar. (Ayes 6. Noes 0.) (July 8). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2025-08-18** In committee: Referred to suspense file. `referral-committee`
- **2025-08-29** From committee: Do pass. (Ayes 7. Noes 0.) (August 29). `committee-passage, committee-passage-favorable`
- **2025-08-29** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2025-09-02** Ordered to special consent calendar.
- **2025-09-04** Read third time. Passed. Ordered to the Assembly. (Ayes 39. Noes 0. Page 2523.). `passage, reading-1, reading-3`
- **2025-09-04** In Assembly. Ordered to Engrossing and Enrolling. `committee-passage`
- **2025-09-11** Enrolled and presented to the Governor at 4 p.m.
- **2025-10-01** Approved by the Governor. `executive-signature`
- **2025-10-01** Chaptered by Secretary of State - Chapter 180, Statutes of 2025. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/ea15f96a-9b2f-4453-92a7-d7eaa4ecc804`. Confidence: reported (aggregated from official California legislature records).