republic-os/legislation/us/states/ca/20232024/sb-452.md

---
type: "Bill"
title: "Firearms."
description: "Existing law, subject to exceptions, generally makes it an offense to manufacture or sell an unsafe handgun, as defined, and requires the Department of Justice to compile a roster listing all of the handguns that have been tested and determined not to be unsafe handguns. Existing law establishes criteria for determining if a handgun is an unsafe handgun, including, for firearms manufactured after a certain date and not already listed on the roster, the lack of a chamber load indicator, magazine disconnect mechanism, and technology that transfers a microscopic array of characters from the firearm to the cartridge case when the firearm is fired, known as a microstamp."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20232024"
identifier: "SB 452"
citation: "California SB 452 (20232024)"
classification: ["bill"]
subjects: ["Firearms"]
status: "enacted"
primary_sponsors: ["Blakespear"]
version_count: 9
action_count: 30
vote_count: 8
first_action: "2023-02-13"
last_action: "2023-09-26"
source: "openstates"
source_identifier: "ocd-bill/e19fb7c4-daa3-4af0-af5c-2169dec91683"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240SB452"
source_hash: "0034eb18ad2b032e6d9dc8dcbbc9bb10b50139c8a9e30a0adfa2577b49acda0c"
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 SB 452 (20232024) — Firearms.

Existing law, subject to exceptions, generally makes it an offense to manufacture or sell an unsafe handgun, as defined, and requires the Department of Justice to compile a roster listing all of the handguns that have been tested and determined not to be unsafe handguns. Existing law establishes criteria for determining if a handgun is an unsafe handgun, including, for firearms manufactured after a certain date and not already listed on the roster, the lack of a chamber load indicator, magazine disconnect mechanism, and technology that transfers a microscopic array of characters from the firearm to the cartridge case when the firearm is fired, known as a microstamp.

## Version chain

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

1. **02/13/23 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240SB452&version=20230SB45299INT)
2. **03/20/23 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240SB452&version=20230SB45298AMD)
3. **04/20/23 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240SB452&version=20230SB45297AMD)
4. **05/18/23 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240SB452&version=20230SB45296AMD)
5. **09/01/23 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240SB452&version=20230SB45295AMD)
6. **09/08/23 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240SB452&version=20230SB45294AMD)
7. **09/26/23 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240SB452&version=20230SB45292CHP)
8. **SB452** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240SB452)
9. **09/18/23 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202320240SB452&version=20230SB45293ENR)

## Votes

- Unfinished Business SB452 Blakespear et al. Concurrence — **30–9** (pass) · upper
- Placed on suspense file — **6–0** (pass) · upper
- 3rd Reading SB452 Blakespear et al. — **29–10** (pass) · upper
- Do pass as amended — **5–2** (pass) · upper
- Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — **4–0** (pass) · upper
- Do pass and be re-referred to the Committee on [Appropriations] — **6–2** (pass) · lower
- SB 452 Blakespear Senate Third Reading By Maienschein — **55–18** (pass) · lower
- Do pass as amended. — **11–4** (pass) · lower

## Sponsors

- Blakespear — primary (person)
- Friedman — principal coauthor (person)
- Min — coauthor (person)

## Timeline

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

- **2023-02-13** Introduced. Read first time. To Com. on RLS. for assignment. To print. `introduction, reading-1`
- **2023-02-14** From printer. May be acted upon on or after March 16.
- **2023-02-22** Referred to Com. on RLS. `referral-committee`
- **2023-03-20** From committee with author's amendments. Read second time and amended. Re-referred to Com. on RLS. `amendment-passage, committee-passage, reading-1, reading-2, referral-committee`
- **2023-03-29** Re-referred to Com. on PUB S. `referral-committee`
- **2023-04-03** Set for hearing April 18.
- **2023-04-19** From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 4. Noes 0. Page 803.) (April 18). `amendment-passage, committee-passage, committee-passage-favorable`
- **2023-04-20** Read second time and amended. Re-referred to Com. on APPR. `amendment-passage, reading-1, reading-2, referral-committee`
- **2023-04-25** Set for hearing May 1.
- **2023-05-01** May 1 hearing: Placed on APPR suspense file.
- **2023-05-12** Set for hearing May 18.
- **2023-05-18** From committee: Do pass as amended. (Ayes 5. Noes 2. Page 1171.) (May 18). `amendment-passage, committee-passage, committee-passage-favorable`
- **2023-05-18** Read second time and amended. Ordered to second reading. `amendment-passage, reading-1, reading-2`
- **2023-05-22** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2023-05-24** Read third time. Passed. (Ayes 29. Noes 10. Page 1280.) Ordered to the Assembly. `passage, reading-1, reading-3`
- **2023-05-25** In Assembly. Read first time. Held at Desk. `reading-1`
- **2023-06-01** Referred to Com. on PUB. S. `referral-committee`
- **2023-06-28** From committee: Do pass and re-refer to Com. on APPR. (Ayes 6. Noes 2.) (June 27). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2023-08-16** August 16 set for first hearing. Placed on suspense file.
- **2023-09-01** From committee: Do pass as amended. (Ayes 11. Noes 4.) (September 1). `amendment-passage, committee-passage, committee-passage-favorable`
- **2023-09-01** Read second time and amended. Ordered to second reading. `amendment-passage, reading-1, reading-2`
- **2023-09-05** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2023-09-08** Read third time and amended. `amendment-passage, reading-1, reading-3`
- **2023-09-08** Ordered to third reading.
- **2023-09-13** Read third time. Passed. (Ayes 55. Noes 18. Page 3430.) Ordered to the Senate. `passage, reading-1, reading-3`
- **2023-09-13** In Senate. Concurrence in Assembly amendments pending.
- **2023-09-14** Assembly amendments concurred in. (Ayes 30. Noes 9. Page 2843.) Ordered to engrossing and enrolling. `amendment-passage, committee-passage-favorable`
- **2023-09-21** Enrolled and presented to the Governor at 4 p.m.
- **2023-09-26** Approved by the Governor. `executive-signature`
- **2023-09-26** Chaptered by Secretary of State. Chapter 253, Statutes of 2023. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/e19fb7c4-daa3-4af0-af5c-2169dec91683`. Confidence: reported (aggregated from official California legislature records).