---
type: "Bill"
title: "Traumatic brain injury project."
description: "Traumatic brain injury project."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "19992000"
identifier: "AB 1492"
citation: "California AB 1492 (19992000)"
classification: ["bill"]
subjects: ["Traumatic brain injury project."]
status: "enacted"
primary_sponsors: ["Thomson"]
version_count: 5
action_count: 21
vote_count: 8
first_action: "1999-02-26"
last_action: "1999-10-10"
source: "openstates"
source_identifier: "ocd-bill/a6e7f54c-8f0f-4ac9-9463-0acdd66bc7dc"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=199920000AB1492"
source_hash: "c9f875ce5f91596b3ea79b991fb5346eac96b2007464dd1c1dd8b94d71ac913f"
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 1492 (19992000) — Traumatic brain injury project.

## Version chain

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

1. **02/26/99 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB1492&version=19990AB149299INT)
2. **07/07/99 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB1492&version=19990AB149298AMD)
3. **10/10/99 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB1492&version=19990AB149296CHP)
4. **AB1492** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=199920000AB1492)
5. **09/08/99 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB1492&version=19990AB149297ENR)

## Votes

- AB 1492 THOMSON THIRD READING — **pass** (pass) · lower
- Placed on Appropriations suspense file. — **pass** (pass) · upper
- Do pass. — **pass** (pass) · lower
- Do pass. — **pass** (pass) · upper
- Do pass as amended, and re-refer to the Committee on Appropriations. — **pass** (pass) · upper
- AB 1492 THOMSON CONCURRENCE — **pass** (pass) · lower
- Do pass and re-refer to Committee on Appropriations with recommendation: To Consent Calendar. — **pass** (pass) · lower
- Assembly 3rd Reading AB1492 Thomson By Alpert — **pass** (pass) · upper

## Sponsors

- Thomson — primary (person)
- Aroner — author (person)
- Figueroa — coauthor (person)

## Timeline

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

- **1999-10-10** Chaptered by Secretary of State - Chapter 1023, Statutes of 1999.
- **1999-10-10** Approved by the Governor. `executive-signature`
- **1999-09-17** Enrolled and to the Governor at 1:30 p.m.
- **1999-09-08** Assembly Rule 77 suspended. Senate amendments concurred in. To enrollment. (Ayes 70. Noes 9. Page 4088.) `committee-passage-favorable, amendment-passage`
- **1999-09-07** In Assembly. Concurrence in Senate amendments pending. May be considered on or after September 9 pursuant to Assembly Rule 77.
- **1999-09-07** Read third time, passed, and to Assembly. (Ayes 29. Noes 3. Page 2959.) `passage, reading-3, reading-1`
- **1999-09-01** From committee: Do pass. (Ayes 13. Noes 0.). Read second time. To third reading. `committee-passage, committee-passage-favorable, reading-2, reading-1`
- **1999-08-23** Joint Rule 61 (a) suspended.
- **1999-08-16** In committee: Placed on Appropriations suspense file.
- **1999-07-07** Read second time, amended, and re-referred to Standing Committee on Appropriations. `amendment-passage, reading-2, reading-1, referral-committee`
- **1999-07-06** From committee: Amend, do pass as amended, and re-refer to Standing Committee on Appropriations (Ayes 7. Noes 1.). `committee-passage, amendment-introduction, amendment-passage, referral-committee`
- **1999-06-07** Referred to Com. on H. & H.S. `referral-committee`
- **1999-06-02** In Senate. Read first time. To Standing Committee on Rules for assignment. `reading-1`
- **1999-06-01** Read third time, passed, and to Senate. (Ayes 76. Noes 2. Page 2196.) `passage, reading-3, reading-1`
- **1999-05-28** From committee: Do pass. (Ayes 14. Noes 7.) (May 26). Read second time. To third reading. `committee-passage, committee-passage-favorable, reading-2, reading-1`
- **1999-04-21** In committee: Set, first hearing. Referred to Standing Committee on Appropriations suspense file. `referral-committee`
- **1999-04-08** From committee: Do pass, and re-refer to Standing Committee on Appropriations with recommendation: To Consent Calendar. Re-referred. (Ayes 14. Noes 0.) (April 6). `committee-passage, committee-passage-favorable, referral-committee`
- **1999-03-18** Referred to Standing Committee on Health. `referral-committee`
- **1999-03-01** Read first time. `reading-1`
- **1999-02-27** From printer. May be heard in committee March 29.
- **1999-02-26** Introduced. To print. `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/a6e7f54c-8f0f-4ac9-9463-0acdd66bc7dc`. Confidence: reported (aggregated from official California legislature records).