---
type: "Bill"
title: "Solid waste: biomass conversion."
description: "Solid waste: biomass conversion."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "19992000"
identifier: "AB 514"
citation: "California AB 514 (19992000)"
classification: ["bill"]
subjects: ["Solid waste: biomass conversion."]
status: "enacted"
primary_sponsors: ["Thomson"]
version_count: 8
action_count: 24
vote_count: 7
first_action: "1999-02-18"
last_action: "1999-09-21"
source: "openstates"
source_identifier: "ocd-bill/12550c6c-d1cb-4c9c-90de-c654bae3a9a6"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=199920000AB514"
source_hash: "5560c704c03c1149f8d3975fc61760741946f6d99ea78a49997f7ce0f2cff7d6"
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 514 (19992000) — Solid waste: biomass conversion.

## Version chain

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

1. **02/18/99 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB514&version=19990AB51499INT)
2. **05/06/99 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB514&version=19990AB51498AMD)
3. **05/17/99 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB514&version=19990AB51497AMD)
4. **08/17/99 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB514&version=19990AB51496AMD)
5. **08/25/99 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB514&version=19990AB51495AMD)
6. **09/21/99 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB514&version=19990AB51493CHP)
7. **AB514** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=199920000AB514)
8. **09/03/99 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB514&version=19990AB51494ENR)

## Votes

- Do pass as amended. — **pass** (pass) · lower
- AB 514 THOMSON THIRD READING — **pass** (pass) · lower
- Assembly 3rd Reading AB514 Thomson Reconsider — **pass** (pass) · upper
- Do pass as amended. To Consent Calendar. — **pass** (pass) · upper
- SPEC. CONSENT CALENDAR SECOND DAY CONCURRENCE — **pass** (pass) · lower
- Special Consent #27 AB514 Thomson By Perata — **pass** (pass) · upper
- Assembly 3rd Reading AB514 Thomson — **pass** (pass) · upper

## Sponsors

- Thomson — primary (person)
- Aanestad — coauthor (person)
- Dickerson — coauthor (person)
- Jackson — coauthor (person)
- Robert Pacheco — coauthor (person)

## Timeline

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

- **1999-09-21** Chaptered by Secretary of State - Chapter 439, Statutes of 1999.
- **1999-09-21** Approved by the Governor. `executive-signature`
- **1999-09-14** Enrolled and to the Governor at 11:30 a.m.
- **1999-09-03** Senate amendments concurred in. To enrollment. (Ayes 71. Noes 0. Page 3881.) `committee-passage-favorable, amendment-passage`
- **1999-09-01** In Assembly. Concurrence in Senate amendments pending. May be considered on or after September 3 pursuant to Assembly Rule 77. Ordered to Special Consent Calendar.
- **1999-08-31** Read third time, passed, and to Assembly. (Ayes 40. Noes 0. Page 2758.) `passage, reading-3, reading-1`
- **1999-08-26** Read second time. To third reading. `reading-2, reading-1`
- **1999-08-25** Read third time, amended. To second reading. `reading-3, amendment-passage, reading-1`
- **1999-08-24** Read third time and passed. (Ayes 40. Noes 0. Page 2605.) Motion to reconsider made by Senator Perata. Reconsideration granted. (Ayes 40. Noes 0. Page 2605.) `passage, reading-3, reading-1`
- **1999-08-19** From Consent Calendar. To third reading.
- **1999-08-17** Read second time, amended, and to Consent Calendar. `amendment-passage, reading-2, reading-1`
- **1999-08-16** From committee: Amend, and do pass as amended. To Consent Calendar. `committee-passage, amendment-introduction, amendment-passage`
- **1999-06-21** In committee: Hearing postponed by committee.
- **1999-06-02** Referred to Com. on ENV. QUAL. `referral-committee`
- **1999-05-25** In Senate. Read first time. To Standing Committee on Rules for assignment. `reading-1`
- **1999-05-24** Read third time, passed, and to Senate. (Ayes 71. Noes 0. Page 1845.) `passage, reading-3, reading-1`
- **1999-05-18** Read second time. To third reading. `reading-2, reading-1`
- **1999-05-17** Read second time and amended. Ordered returned to second reading. `amendment-passage, reading-2, reading-1`
- **1999-05-13** From committee: Amend, and do pass as amended. (Ayes 11. Noes 0.) (May 10). `committee-passage, amendment-introduction, amendment-passage`
- **1999-05-10** Re-referred to Standing Committee on Natural Resources. `referral-committee`
- **1999-05-06** From committee chair, with author's amendments: Amend, and re-refer to Standing Committee on Natural Resources Read second time and amended. `amendment-introduction, amendment-passage, reading-2, reading-1, referral-committee`
- **1999-03-04** Referred to Standing Committee on Natural Resources. `referral-committee`
- **1999-02-19** From printer. May be heard in committee March 21.
- **1999-02-18** 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/12550c6c-d1cb-4c9c-90de-c654bae3a9a6`. Confidence: reported (aggregated from official California legislature records).