---
type: "Bill"
title: "Cellular telephones: vehicles: study."
description: "Cellular telephones: vehicles: study."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20012002"
identifier: "AB 770"
citation: "California AB 770 (20012002)"
classification: ["bill"]
subjects: ["Cellular telephones: vehicles: study."]
status: "enacted"
primary_sponsors: ["Nakano"]
version_count: 11
action_count: 27
vote_count: 8
first_action: "2001-02-22"
last_action: "2001-10-11"
source: "openstates"
source_identifier: "ocd-bill/24f7e930-7b88-481d-92bd-8ab701284693"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200120020AB770"
source_hash: "62f5c2157bc26e23656174998b67d3baede09ab2e1a0026243f1d4a57e9dfec4"
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 770 (20012002) — Cellular telephones: vehicles: study.

## Version chain

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

1. **02/22/01 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB770&version=20010AB77099INT)
2. **04/02/01 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB770&version=20010AB77098AMD)
3. **04/16/01 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB770&version=20010AB77097AMD)
4. **05/31/01 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB770&version=20010AB77096AMD)
5. **07/03/01 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB770&version=20010AB77095AMD)
6. **07/19/01 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB770&version=20010AB77094AMD)
7. **08/31/01 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB770&version=20010AB77093AMD)
8. **09/07/01 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB770&version=20010AB77092AMD)
9. **10/11/01 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB770&version=20010AB77090CHP)
10. **AB770** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200120020AB770)
11. **09/13/01 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200120020AB770&version=20010AB77091ENR)

## Votes

- Assembly 3rd Reading AB770 Nakano By Murray — **pass** (pass) · upper
- Do pass as amended, and re-refer to the Committee on Appropriations. — **fail** (fail) · upper
- AB 770 Nakano Concurrence in Senate Amendments — **pass** (pass) · lower
- AB 770 Nakano Assembly Third Reading — **pass** (pass) · lower
- Do pass as amended, and re-refer to the Committee on Appropriations. — **pass** (pass) · upper
- Do pass and be re-referred to the Committee on Appropriations. — **pass** (pass) · lower
- Set, first hearing. Failed passage in Committee. Reconsideration granted. — **pass** (pass) · upper
- Do pass as amended. — **pass** (pass) · lower

## Sponsors

- Nakano — primary (person)
- Cedillo — coauthor (person)

## Timeline

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

- **2001-10-11** Chaptered by Secretary of State - Chapter 710, Statutes of 2001.
- **2001-10-10** Approved by the Governor. `executive-signature`
- **2001-10-01** Enrolled and to the Governor at 10:30 a.m.
- **2001-09-13** Senate amendments concurred in. To enrollment. (Ayes 52. Noes 25. Page 3884.) `committee-passage-favorable, amendment-passage`
- **2001-09-12** In Assembly. Concurrence in Senate amendments pending.
- **2001-09-12** Read third time, passed, and to Assembly. (Ayes 21. Noes 14. Page 2838.) `passage, reading-1, reading-3`
- **2001-09-10** From committee: Be placed on second reading file pursuant to Senate Rule 28.8. Read second time. To third reading. `reading-2, reading-1, committee-passage`
- **2001-09-07** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Standing Committee on Appropriations. `reading-1, referral-committee, reading-2, amendment-introduction, amendment-passage`
- **2001-08-31** Read second time, amended, and re-referred to Standing Committee on Appropriations. `reading-2, reading-1, referral-committee, amendment-passage`
- **2001-08-30** From committee: Amend, do pass as amended, and re-refer to Standing Committee on Appropriations (Ayes 9. Noes 3.). `amendment-introduction, referral-committee, committee-passage, amendment-passage`
- **2001-08-20** In committee: Hearing postponed by committee.
- **2001-07-19** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Standing Committee on Transportation. `reading-1, referral-committee, reading-2, amendment-introduction, amendment-passage`
- **2001-07-11** In committee: Set first hearing. Failed passage. Reconsideration granted.
- **2001-07-03** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Standing Committee on Transportation. `reading-1, referral-committee, reading-2, amendment-introduction, amendment-passage`
- **2001-06-19** Referred to Standing Committee on Transportation. `referral-committee`
- **2001-06-06** In Senate. Read first time. To Standing Committee on Rules for assignment. `reading-1`
- **2001-06-05** Read third time, passed, and to Senate. (Ayes 47. Noes 26. Page 2183.) `passage, reading-1, reading-3`
- **2001-06-04** Read second time. To third reading. `reading-2, reading-1`
- **2001-05-31** From committee: Amend, and do pass as amended. (Ayes 14. Noes 7.) (May 31). Read second time and amended. Ordered returned to second reading. `reading-2, reading-1, committee-passage, amendment-introduction, amendment-passage`
- **2001-05-29** Joint Rule 62(a), file notice waived. (Page 1856.)
- **2001-05-09** In committee: Set, first hearing. Referred to Standing Committee on Appropriations suspense file. `referral-committee`
- **2001-04-24** Re-referred to Standing Committee on Transportation From committee: Do pass, and re-refer to Standing Committee on Appropriations Re-referred. (Ayes 14. Noes 3.) (April 23). `committee-passage-favorable, referral-committee, committee-passage`
- **2001-04-16** Re-referred to Standing Committee on Transportation From committee chair, with author's amendments: Amend, and re-refer to Standing Committee on Transportation Read second time and amended. `reading-2, referral-committee, reading-1, amendment-introduction, amendment-passage`
- **2001-04-02** From committee chair, with author's amendments: Amend, and re-refer to Standing Committee on Transportation Read second time and amended. `reading-2, referral-committee, reading-1, amendment-introduction, amendment-passage`
- **2001-03-08** Referred to Standing Committee on Transportation. `referral-committee`
- **2001-02-25** From printer. May be heard in committee March 27.
- **2001-02-22** Read first time. To print. `reading-1`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/24f7e930-7b88-481d-92bd-8ab701284693`. Confidence: reported (aggregated from official California legislature records).