---
type: "Bill"
title: "Public transit operators: bus procurement: safety considerations."
description: "(1) Existing law imposes various requirements on transit operators and provides funding for transit services and capital improvements."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20172018"
identifier: "AB 673"
citation: "California AB 673 (20172018)"
classification: ["bill"]
subjects: ["Public transit operators: bus procurement: safety considerations."]
status: "enacted"
primary_sponsors: ["Chu"]
version_count: 6
action_count: 21
vote_count: 2
first_action: "2017-02-15"
last_action: "2017-07-24"
source: "openstates"
source_identifier: "ocd-bill/ff152acd-c26c-4eb6-8d16-3593c81aea46"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201720180AB673"
source_hash: "f79548958b8f7b7efd430e8b7209df49bc10479126bb24909ad1dd2d31ee933d"
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 673 (20172018) — Public transit operators: bus procurement: safety considerations.

(1) Existing law imposes various requirements on transit operators and provides funding for transit services and capital improvements.

## Version chain

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

1. **02/15/17 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB673&version=20170AB67399INT)
2. **04/18/17 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB673&version=20170AB67398AMD)
3. **05/15/17 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB673&version=20170AB67397AMD)
4. **07/24/17 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB673&version=20170AB67395CHP)
5. **AB673** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201720180AB673)
6. **07/12/17 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB673&version=20170AB67396ENR)

## Votes

- AB 673 CHU Assembly Third Reading — **55–21** (pass) · lower
- Do pass, but first be re-referred to the Committee on [Appropriations] — **10–3** (pass) · upper

## Sponsors

- Chu — primary (person)

## Timeline

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

- **2017-02-15** Read first time. To print. `reading-1`
- **2017-02-16** From printer. May be heard in committee March 18.
- **2017-03-02** Referred to Com. on TRANS. `referral-committee`
- **2017-03-29** In committee: Set, first hearing. Hearing canceled at the request of author.
- **2017-04-18** 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-2, reading-1`
- **2017-04-19** Re-referred to Com. on TRANS. `referral-committee`
- **2017-04-26** From committee: Do pass and re-refer to Com. on APPR. (Ayes 10. Noes 4.) (April 24). Re-referred to Com. on APPR. `committee-passage-favorable, committee-passage, referral-committee`
- **2017-05-10** From committee: Do pass. (Ayes 12. Noes 5.) (May 10). `committee-passage-favorable, committee-passage`
- **2017-05-11** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2017-05-15** Read third time and amended. Ordered to third reading. (Page 1540.) `amendment-passage, reading-3, reading-1`
- **2017-05-22** Read third time. Passed. Ordered to the Senate. (Ayes 55. Noes 21. Page 1645.) `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 T. & H. `referral-committee`
- **2017-06-13** From committee: Do pass and re-refer to Com. on APPR. (Ayes 10. Noes 3.) (June 13). Re-referred to Com. on APPR. `committee-passage-favorable, committee-passage, referral-committee`
- **2017-06-26** From committee: Be ordered to second reading pursuant to Senate Rule 28.8. `committee-passage, reading-2`
- **2017-06-27** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2017-07-10** Read third time. Passed. Ordered to the Assembly. (Ayes 28. Noes 12. Page 1938.). `reading-3, passage, reading-1`
- **2017-07-11** In Assembly. Ordered to Engrossing and Enrolling. `committee-passage`
- **2017-07-14** Enrolled and presented to the Governor at 3 p.m.
- **2017-07-24** Approved by the Governor. `executive-signature`
- **2017-07-24** Chaptered by Secretary of State - Chapter 126, Statutes of 2017.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/ff152acd-c26c-4eb6-8d16-3593c81aea46`. Confidence: reported (aggregated from official California legislature records).