---
type: "Bill"
title: "Environment: mitigation: Highway 99."
description: "Environment: mitigation: Highway 99."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20072008"
identifier: "AB 1055"
citation: "California AB 1055 (20072008)"
classification: ["bill"]
subjects: ["Environment: mitigation: Highway 99."]
status: "enacted"
primary_sponsors: ["Blakeslee"]
version_count: 7
action_count: 23
vote_count: 6
first_action: "2007-02-23"
last_action: "2007-10-11"
source: "openstates"
source_identifier: "ocd-bill/74083de3-61e4-4a95-86fa-d5237cb46786"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200720080AB1055"
source_hash: "f29ab6451155c983f86dbecf093c613c752e439e7085dbcf39056fed0d18276d"
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 1055 (20072008) — Environment: mitigation: Highway 99.

## Version chain

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

1. **02/23/07 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB1055&version=20070AB105599INT)
2. **04/10/07 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB1055&version=20070AB105598AMD)
3. **06/01/07 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB1055&version=20070AB105597AMD)
4. **07/17/07 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB1055&version=20070AB105596AMD)
5. **10/11/07 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB1055&version=20070AB105594CHP)
6. **AB1055** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200720080AB1055)
7. **09/10/07 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200720080AB1055&version=20070AB105595ENR)

## Votes

- Do pass as amended, and re-refer to the Committee on Appropriations. — **pass** (pass) · upper
- Do pass and be re-referred to the Committee on Appropriations. — **pass** (pass) · lower
- AB 1055 BLAKESLEE Concurrence in Senate Amendments — **pass** (pass) · lower
- Do pass as amended. — **pass** (pass) · lower
- AB 1055 BLAKESLEE Assembly Third Reading — **pass** (pass) · lower
- Special Consent #16 AB1055 Blakeslee By Machado — **pass** (pass) · upper

## Sponsors

- Blakeslee — primary (person)

## Timeline

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

- **2007-02-23** Introduced. To print. `introduction`
- **2007-02-25** From printer. May be heard in committee March 27.
- **2007-02-26** Read first time. `reading-1`
- **2007-04-09** Referred to Standing Committee on Transportation. `referral-committee`
- **2007-04-10** From committee chair, with author's amendments: Amend, and re-refer to Standing Committee on Transportation Read second time and amended. `reading-1, reading-2, amendment-passage, amendment-introduction, referral-committee`
- **2007-04-12** Re-referred to Standing Committee on Transportation. `referral-committee`
- **2007-04-24** From committee: Do pass, and re-refer to Standing Committee on Appropriations Re-referred. (Ayes 14. Noes 0.) (April 23). `committee-passage, committee-passage-favorable, referral-committee`
- **2007-05-10** In committee: Set, first hearing. Referred to Standing Committee on Appropriations suspense file. `referral-committee`
- **2007-06-01** From committee: Amend, and do pass as amended. (Ayes 16. Noes 0.) (May 31). Read second time and amended. Ordered returned to second reading. `reading-1, reading-2, amendment-introduction, committee-passage, amendment-passage`
- **2007-06-04** Read second time. To third reading. `reading-1, reading-2`
- **2007-06-05** Read third time, passed, and to Senate. (Ayes 75. Noes 0. Page 1949.) `passage, reading-1, reading-3`
- **2007-06-06** In Senate. Read first time. To Standing Committee on Rules for assignment. `reading-1`
- **2007-06-14** Referred to Standing Committee on Environmental Quality. `referral-committee`
- **2007-07-16** 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`
- **2007-07-17** Read second time, amended, and re-referred to Standing Committee on Appropriations. `reading-2, reading-1, amendment-passage, referral-committee`
- **2007-08-20** From committee: Be placed on second reading file pursuant to Senate Rule 28.8. `committee-passage`
- **2007-08-21** Read second time. To third reading. `reading-1, reading-2`
- **2007-08-30** Read third time, passed, and to Assembly. (Ayes 39. Noes 0. Page 2177.) `passage, reading-1, reading-3`
- **2007-08-30** In Assembly. Concurrence in Senate amendments pending. May be considered on or after September 1 pursuant to Assembly Rule 77.
- **2007-09-04** Senate amendments concurred in. To enrollment. (Ayes 77. Noes 0. Page 2879.) `committee-passage-favorable, amendment-passage`
- **2007-09-17** Enrolled and to the Governor at 3:30 p.m.
- **2007-10-11** Approved by the Governor. `executive-signature`
- **2007-10-11** Chaptered by Secretary of State - Chapter 503, Statutes of 2007.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/74083de3-61e4-4a95-86fa-d5237cb46786`. Confidence: reported (aggregated from official California legislature records).