---
type: "Bill"
title: "Transportation congestion data."
description: "Transportation congestion data."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20012002"
identifier: "AB 2535"
citation: "California AB 2535 (20012002)"
classification: ["bill"]
subjects: ["Transportation congestion data."]
status: "enacted"
primary_sponsors: ["Diaz"]
version_count: 6
action_count: 22
vote_count: 6
first_action: "2002-02-21"
last_action: "2002-09-06"
source: "openstates"
source_identifier: "ocd-bill/dd4d1f08-0a7a-4b86-a250-95a630a655ea"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200120020AB2535"
source_hash: "0bbb7a44e70fedf95e9f2031c96979544acbe74ffcaf820a8a1ffdafdc6ff6ae"
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 2535 (20012002) — Transportation congestion data.

## Version chain

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

1. **02/21/02 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB2535&version=20010AB253599INT)
2. **04/23/02 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB2535&version=20010AB253598AMD)
3. **06/25/02 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB2535&version=20010AB253597AMD)
4. **09/06/02 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB2535&version=20010AB253595CHP)
5. **AB2535** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200120020AB2535)
6. **08/15/02 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB2535&version=20010AB253596ENR)

## Votes

- Do pass as amended, but re-refer to the Committee on Appropriations Recommend Consent. — **pass** (pass) · upper
- SPECIAL CONSENT CALE AB2535 Diaz — **pass** (pass) · upper
- AB 2535 Diaz Assembly Third Reading — **pass** (pass) · lower
- Do pass as amended and be re-referred to the Committee on Appropriations. — **pass** (pass) · lower
- Do pass. — **pass** (pass) · lower
- AB 2535 Diaz Special Consent Calendar 2nd Day Regular Session — **pass** (pass) · lower

## Sponsors

- Diaz — primary (person)
- Cohn — coauthor (person)

## Timeline

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

- **2002-09-06** Chaptered by Secretary of State - Chapter 392, Statutes of 2002.
- **2002-09-05** Approved by the Governor. `executive-signature`
- **2002-08-26** Enrolled and to the Governor at 10 a.m.
- **2002-08-15** Senate amendments concurred in. To enrollment. (Ayes 78. Noes 0. Page 7671.) `committee-passage-favorable, amendment-passage`
- **2002-08-12** In Assembly. Concurrence in Senate amendments pending. May be considered on or after August 14 pursuant to Assembly Rule 77. Ordered to Special Consent Calendar.
- **2002-08-12** Read third time, passed, and to Assembly. (Ayes 39. Noes 0. Page 5371.) `passage, reading-1, reading-3`
- **2002-08-07** Read second time. To third reading. `reading-2, reading-1`
- **2002-08-06** From committee: Be placed on second reading file pursuant to Senate Rule 28.8. `committee-passage`
- **2002-06-25** Read second time, amended, and re-referred to Standing Committee on Appropriations. `reading-2, reading-1, referral-committee, amendment-passage`
- **2002-06-24** From committee: Amend, and do pass as amended, and re-refer to Standing Committee on Appropriations with recommendation: To Consent Calendar. (Ayes 14. Noes 0.). `amendment-introduction, referral-committee, committee-passage, amendment-passage`
- **2002-05-29** Referred to Standing Committee on Transportation. `referral-committee`
- **2002-05-21** In Senate. Read first time. To Standing Committee on Rules for assignment. `reading-1`
- **2002-05-20** Read third time, passed, and to Senate. (Ayes 76. Noes 0. Page 6213.) `passage, reading-1, reading-3`
- **2002-05-13** Read second time. To third reading. `reading-2, reading-1`
- **2002-05-09** From committee: Do pass. (Ayes 22. Noes 0.) (May 8). `committee-passage-favorable, committee-passage`
- **2002-04-25** Re-referred to Standing Committee on Appropriations. `referral-committee`
- **2002-04-23** Read second time and amended. `reading-2, amendment-passage, reading-1`
- **2002-04-22** From committee: Amend, do pass as amended, and re-refer to Standing Committee on Appropriations (Ayes 14. Noes 0.) (April 15). `amendment-introduction, referral-committee, committee-passage, amendment-passage`
- **2002-04-09** In committee: Set, first hearing. Hearing canceled at the request of author.
- **2002-03-07** Referred to Standing Committee on Transportation. `referral-committee`
- **2002-02-24** From printer. May be heard in committee March 26.
- **2002-02-21** Assembly Rule 49(a) suspended. Read first time. To print. `reading-1`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/dd4d1f08-0a7a-4b86-a250-95a630a655ea`. Confidence: reported (aggregated from official California legislature records).