republic-os/legislation/us/states/ca/20172018/ab-424.md

---
type: "Bill"
title: "Possession of a firearm in a school zone."
description: "Existing law makes it a crime to possess a firearm in a place that the person knows, or reasonably should know, is a school zone, unless it is with the written permission of the school district superintendent, his or her designee, or equivalent school authority."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20172018"
identifier: "AB 424"
citation: "California AB 424 (20172018)"
classification: ["bill"]
subjects: ["Possession of a firearm in a school zone."]
status: "enacted"
primary_sponsors: ["McCarty"]
version_count: 7
action_count: 22
vote_count: 4
first_action: "2017-02-09"
last_action: "2017-10-14"
source: "openstates"
source_identifier: "ocd-bill/2904941a-7dc4-4c88-9466-8b399e10f32c"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201720180AB424"
source_hash: "8ddf1ba5f8d4837f67ba0c53c947499b3669e73a9a555177dd08727e6156b47d"
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 424 (20172018) — Possession of a firearm in a school zone.

Existing law makes it a crime to possess a firearm in a place that the person knows, or reasonably should know, is a school zone, unless it is with the written permission of the school district superintendent, his or her designee, or equivalent school authority.

## Version chain

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

1. **02/09/17 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB424&version=20170AB42499INT)
2. **05/11/17 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB424&version=20170AB42498AMD)
3. **06/19/17 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB424&version=20170AB42497AMD)
4. **08/30/17 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB424&version=20170AB42496AMD)
5. **10/14/17 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB424&version=20170AB42494CHP)
6. **AB424** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201720180AB424)
7. **09/13/17 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB424&version=20170AB42495ENR)

## Votes

- 3rd Reading AB424 McCarty et al. By Skinner — **25–13** (pass) · upper
- AB 424 MCCARTY Concurrence in Senate Amendments — **44–27** (pass) · lower
- AB 424 MCCARTY Assembly Third Reading — **48–28** (pass) · lower
- Do pass, but first be re-referred to the Committee on [Appropriations] — **5–2** (pass) · upper

## Sponsors

- McCarty — primary (person)
- Chiu — coauthor (person)
- Gloria — coauthor (person)
- Santiago — author (person)

## Timeline

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

- **2017-02-09** Read first time. To print. `reading-1`
- **2017-02-10** From printer. May be heard in committee March 12.
- **2017-02-21** Referred to Com. on PUB. S. `referral-committee`
- **2017-03-15** From committee: Do pass and re-refer to Com. on APPR. (Ayes 5. Noes 2.) (March 14). Re-referred to Com. on APPR. `committee-passage-favorable, committee-passage, referral-committee`
- **2017-04-05** From committee: Do pass. (Ayes 11. Noes 6.) (April 5). `committee-passage-favorable, committee-passage`
- **2017-04-06** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2017-05-11** Read third time and amended. Ordered to third reading. (Page 1471.) `amendment-passage, reading-3, reading-1`
- **2017-05-22** Read third time. Passed. Ordered to the Senate. (Ayes 48. Noes 28. Page 1638.) `reading-3, passage, reading-1`
- **2017-05-22** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2017-06-01** Referred to Com. on PUB. S. `referral-committee`
- **2017-06-19** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on PUB. S. `amendment-passage, referral-committee, reading-2, reading-1, amendment-introduction`
- **2017-06-27** From committee: Do pass and re-refer to Com. on APPR. (Ayes 5. Noes 2.) (June 27). Re-referred to Com. on APPR. `committee-passage-favorable, committee-passage, referral-committee`
- **2017-07-10** From committee: Be ordered to second reading pursuant to Senate Rule 28.8. `committee-passage, reading-2`
- **2017-07-11** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2017-08-30** Read third time and amended. Ordered to second reading. `amendment-passage, reading-3, reading-1`
- **2017-08-31** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2017-09-06** Read third time. Passed. Ordered to the Assembly. (Ayes 25. Noes 13. Page 2497.). `reading-3, passage, reading-1`
- **2017-09-06** In Assembly. Concurrence in Senate amendments pending. May be considered on or after September 8 pursuant to Assembly Rule 77.
- **2017-09-11** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 44. Noes 27. Page 3135.). `committee-passage-favorable, amendment-passage`
- **2017-09-18** Enrolled and presented to the Governor at 4 p.m.
- **2017-10-14** Approved by the Governor. `executive-signature`
- **2017-10-14** Chaptered by Secretary of State - Chapter 779, Statutes of 2017.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/2904941a-7dc4-4c88-9466-8b399e10f32c`. Confidence: reported (aggregated from official California legislature records).