republic-os/legislation/us/states/ca/20212022/ab-1938.md

---
type: "Bill"
title: "Traffic safety: speed limits."
description: "Existing law establishes various default speed limits for vehicles upon highways, as specified. Existing law requires the Department of Transportation (Caltrans) , by regulation, to require Caltrans or a local authority to round speed limits up or down to the nearest 5 miles per hour of the 85th percentile of free-flowing traffic."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20212022"
identifier: "AB 1938"
citation: "California AB 1938 (20212022)"
classification: ["bill"]
subjects: ["Traffic safety: speed limits."]
status: "enacted"
primary_sponsors: ["Friedman"]
version_count: 9
action_count: 29
vote_count: 7
first_action: "2022-02-10"
last_action: "2022-09-18"
source: "openstates"
source_identifier: "ocd-bill/05763f9a-bf8f-4cea-98f3-b2420b457220"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202120220AB1938"
source_hash: "acd202f780d0202cebb6ae4f9733d52820d6f75ccbe967769440843841a8843c"
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 1938 (20212022) — Traffic safety: speed limits.

Existing law establishes various default speed limits for vehicles upon highways, as specified. Existing law requires the Department of Transportation (Caltrans) , by regulation, to require Caltrans or a local authority to round speed limits up or down to the nearest 5 miles per hour of the 85th percentile of free-flowing traffic.

## Version chain

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

1. **02/10/22 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1938&version=20210AB193899INT)
2. **03/07/22 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1938&version=20210AB193898AMD)
3. **06/13/22 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1938&version=20210AB193897AMD)
4. **06/16/22 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1938&version=20210AB193896AMD)
5. **08/01/22 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1938&version=20210AB193895AMD)
6. **08/18/22 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1938&version=20210AB193894AMD)
7. **09/18/22 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1938&version=20210AB193892CHP)
8. **AB1938** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202120220AB1938)
9. **09/02/22 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=202120220AB1938&version=20210AB193893ENR)

## Votes

- Do pass. — **16–0** (pass) · lower
- With recommendation: That Senate amendments be concurred in. — **11–0** (pass) · lower
- 3rd Reading AB1938 Friedman et al. By Rubio — **32–0** (pass) · upper
- AB 1938 Friedman Assembly Third Reading — **76–0** (pass) · lower
- Do pass and be re-referred to the Committee on [Appropriations] — **13–0** (pass) · lower
- Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — **15–1** (pass) · upper
- AB 1938 Friedman Concurrence in Senate Amendments — **80–0** (pass) · lower

## Sponsors

- Friedman — primary (person)
- Boerner Horvath — coauthor (person)
- Gipson — coauthor (person)
- Portantino — coauthor (person)
- Quirk — author (person)
- Rubio — coauthor (person)
- Ting — author (person)

## Timeline

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

- **2022-02-10** Read first time. To print. `reading-1`
- **2022-02-11** From printer. May be heard in committee March 13.
- **2022-03-03** Referred to Com. on TRANS. `referral-committee`
- **2022-03-07** From committee chair, with author's amendments: Amend, and re-refer to Com. on TRANS. Read second time and amended. `amendment-introduction, amendment-passage, reading-1, reading-2`
- **2022-03-08** Re-referred to Com. on TRANS. `referral-committee`
- **2022-04-05** From committee: Do pass and re-refer to Com. on APPR. (Ayes 13. Noes 0.) (April 4). Re-referred to Com. on APPR. `committee-passage, committee-passage-favorable, referral-committee`
- **2022-04-27** In committee: Set, first hearing. Referred to suspense file. `referral-committee`
- **2022-05-19** From committee: Do pass. (Ayes 16. Noes 0.) (May 19). `committee-passage, committee-passage-favorable`
- **2022-05-19** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2022-05-25** Read third time. Passed. Ordered to the Senate. (Ayes 68. Noes 0. Page 4968.) `passage, reading-1, reading-3`
- **2022-05-26** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2022-06-01** Referred to Com. on TRANS. `referral-committee`
- **2022-06-13** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on TRANS. `amendment-introduction, amendment-passage, reading-1, reading-2, referral-committee`
- **2022-06-16** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on TRANS. `amendment-introduction, amendment-passage, reading-1, reading-2, referral-committee`
- **2022-06-30** From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 15. Noes 1.) (June 28). `amendment-introduction, amendment-passage, committee-passage, referral-committee`
- **2022-08-01** Read second time and amended. Re-referred to Com. on APPR. `amendment-passage, reading-1, reading-2, referral-committee`
- **2022-08-08** From committee: Be ordered to second reading pursuant to Senate Rule 28.8. `committee-passage, reading-2`
- **2022-08-09** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2022-08-18** Read third time and amended. Ordered to second reading. `amendment-passage, reading-1, reading-3`
- **2022-08-22** Read second time. Ordered to third reading. `reading-1, reading-2`
- **2022-08-29** Read third time. Passed. Ordered to the Assembly. (Ayes 32. Noes 0. Page 5181.). `passage, reading-1, reading-3`
- **2022-08-29** In Assembly. Concurrence in Senate amendments pending.
- **2022-08-29** Re-referred to Com. on TRANS. pursuant to Assembly Rule 77.2. `referral-committee`
- **2022-08-29** Joint Rule 62(a), file notice suspended.
- **2022-08-30** From committee: That the Senate amendments be concurred in. (Ayes 11. Noes 0.) (August 30). `committee-passage`
- **2022-08-31** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 80. Noes 0.). `amendment-passage, committee-passage-favorable`
- **2022-09-13** Enrolled and presented to the Governor at 4 p.m.
- **2022-09-18** Approved by the Governor. `executive-signature`
- **2022-09-18** Chaptered by Secretary of State - Chapter 406, Statutes of 2022. `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/05763f9a-bf8f-4cea-98f3-b2420b457220`. Confidence: reported (aggregated from official California legislature records).