---
type: "Bill"
title: "San Diego County Air Pollution Control District: members and duties."
description: "(1) Existing law provides for the establishment of air pollution control districts and air quality management districts."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20192020"
identifier: "AB 423"
citation: "California AB 423 (20192020)"
classification: ["bill"]
subjects: ["San Diego County Air Pollution Control District: members and duties."]
status: "enacted"
primary_sponsors: ["Gloria"]
version_count: 9
action_count: 34
vote_count: 9
first_action: "2019-02-07"
last_action: "2019-10-11"
source: "openstates"
source_identifier: "ocd-bill/9892e358-18df-4a77-8929-9e253d9c8a63"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201920200AB423"
source_hash: "d6e8f0fc3ffba8196680159471493e99edf4302181d740d45680cc11c98560a6"
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 423 (20192020) — San Diego County Air Pollution Control District: members and duties.

(1) Existing law provides for the establishment of air pollution control districts and air quality management districts.

## Version chain

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

1. **02/07/19 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200AB423&version=20190AB42399INT)
2. **04/01/19 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200AB423&version=20190AB42398AMD)
3. **04/24/19 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200AB423&version=20190AB42397AMD)
4. **05/16/19 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200AB423&version=20190AB42396AMD)
5. **07/05/19 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200AB423&version=20190AB42395AMD)
6. **08/30/19 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200AB423&version=20190AB42394AMD)
7. **10/11/19 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200AB423&version=20190AB42392CHP)
8. **AB423** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201920200AB423)
9. **09/17/19 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201920200AB423&version=20190AB42393ENR)

## Votes

- Do pass as amended. — **14–3** (pass) · lower
- Do pass and be re-referred to the Committee on [Appropriations] — **8–2** (pass) · lower
- Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — **5–2** (pass) · upper
- Placed on suspense file — **5–0** (pass) · upper
- Do pass, but first be re-referred to the Committee on [Environmental Quality] — **5–0** (pass) · upper
- AB 423 Gloria Concurrence in Senate Amendments — **63–14** (pass) · lower
- AB 423 Gloria Assembly Third Reading — **56–14** (pass) · lower
- Do pass as amended — **5–2** (pass) · upper
- 3rd Reading AB423 Gloria By McGuire — **29–11** (pass) · upper

## Sponsors

- Gloria — primary (person)

## Timeline

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

- **2019-02-07** Read first time. To print. `reading-1`
- **2019-02-08** From printer. May be heard in committee March 10.
- **2019-02-15** Referred to Com. on NAT. RES. `referral-committee`
- **2019-03-19** In committee: Set, first hearing. Hearing canceled at the request of author.
- **2019-04-01** From committee chair, with author's amendments: Amend, and re-refer to Com. on NAT. RES. Read second time and amended. `reading-1, reading-2, amendment-passage, amendment-introduction`
- **2019-04-02** Re-referred to Com. on NAT. RES. `referral-committee`
- **2019-04-09** From committee: Do pass and re-refer to Com. on APPR. (Ayes 8. Noes 2.) (April 8). Re-referred to Com. on APPR. `committee-passage-favorable, committee-passage, referral-committee`
- **2019-04-24** From committee chair, with author's amendments: Amend, and re-refer to Com. on APPR. Read second time and amended. `reading-1, reading-2, amendment-passage, amendment-introduction`
- **2019-04-25** Re-referred to Com. on APPR. `referral-committee`
- **2019-05-01** In committee: Hearing postponed by committee.
- **2019-05-08** In committee: Hearing postponed by committee.
- **2019-05-13** Joint Rule 62(a), file notice suspended. (Page 1609.)
- **2019-05-15** In committee: Set, first hearing. Referred to APPR. suspense file. `referral-committee`
- **2019-05-16** Joint Rule 62(a), file notice suspended. (Page 1760.)
- **2019-05-16** From committee: Amend, and do pass as amended. (Ayes 14. Noes 3.) (May 16). `amendment-passage, committee-passage, amendment-introduction`
- **2019-05-16** Read second time and amended. Ordered returned to second reading. `amendment-passage, reading-1, reading-2`
- **2019-05-20** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2019-05-28** Read third time. Passed. Ordered to the Senate. (Ayes 56. Noes 14. Page 2033.) `passage, reading-3, reading-1`
- **2019-05-29** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2019-06-12** Referred to Coms. on GOV. & F. and EQ. `referral-committee`
- **2019-06-26** From committee: Do pass and re-refer to Com. on EQ. (Ayes 5. Noes 0.) (June 26). Re-referred to Com. on EQ. `committee-passage-favorable, committee-passage, referral-committee`
- **2019-07-03** From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 5. Noes 2.) (July 3). `amendment-passage, committee-passage, amendment-introduction`
- **2019-07-05** Read second time and amended. Re-referred to Com. on APPR. `reading-1, reading-2, amendment-passage, referral-committee`
- **2019-07-31** In committee: Set, first hearing. Hearing canceled at the request of author.
- **2019-08-19** In committee: Referred to APPR. suspense file. `referral-committee`
- **2019-08-30** From committee: Amend, and do pass as amended. (Ayes 5. Noes 2.) (August 30). `amendment-passage, committee-passage, amendment-introduction`
- **2019-08-30** Read second time and amended. Ordered returned to second reading. `amendment-passage, reading-1, reading-2`
- **2019-09-03** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2019-09-11** Read third time. Passed. Ordered to the Assembly. (Ayes 29. Noes 11. Page 2804.). `passage, reading-3, reading-1`
- **2019-09-11** In Assembly. Concurrence in Senate amendments pending.
- **2019-09-12** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 63. Noes 14. Page 3504.). `amendment-passage, committee-passage-favorable`
- **2019-09-24** Enrolled and presented to the Governor at 3:30 p.m.
- **2019-10-11** Approved by the Governor. `executive-signature`
- **2019-10-11** Chaptered by Secretary of State - Chapter 744, Statutes of 2019.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/9892e358-18df-4a77-8929-9e253d9c8a63`. Confidence: reported (aggregated from official California legislature records).