republic-os/legislation/us/states/ca/20152016/ab-51.md

type, title, description, jurisdiction, legislature, session, identifier, citation, classification, subjects, status, primary_sponsors, version_count, action_count, vote_count, first_action, last_action, source, source_identifier, source_url, source_hash, vintage, source_snapshot, retrieved_at, confidence, tags

type	title	description	jurisdiction	legislature	session	identifier	citation	classification	subjects	status	primary_sponsors	version_count	action_count	vote_count	first_action	last_action	source	source_identifier	source_url	source_hash	vintage	source_snapshot	retrieved_at	confidence	tags
Bill	Vehicles: motorcycles: lane splitting.	Existing law requires, whenever a roadway has been divided into 2 or more clearly marked lanes for traffic in one direction, that a vehicle be driven as nearly as practical entirely within a single lane and not be moved from the lane until the movement can be made with reasonable safety.	us/states/ca	California Legislature	20152016	AB 51	California AB 51 (20152016)	bill	Vehicles: motorcycles: lane splitting.	enacted	Quirk	7	23	6	2014-12-01	2016-08-19	openstates	ocd-bill/641198ee-ca5f-4099-bfbe-cc1860e6676f	http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201520160AB51	3bb375e8ba6a899763c0b9cc2479ec89580eb81b5154953787919e502574af01	2026-07-01	https://data.openstates.org/daily/2026-07-01/public.pgdump	2026-07-06	reported	legislation bill us-ca

California AB 51 (20152016) — Vehicles: motorcycles: lane splitting.

Existing law requires, whenever a roadway has been divided into 2 or more clearly marked lanes for traffic in one direction, that a vehicle be driven as nearly as practical entirely within a single lane and not be moved from the lane until the movement can be made with reasonable safety.

Version chain

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

1. 12/01/14 - Introduced (filed) — source
2. 02/11/15 - Amended Assembly (committee substitute) — source
3. 05/22/15 - Amended Assembly (committee substitute) — source
4. 06/01/16 - Amended Senate (committee substitute) — source
5. 08/19/16 - Chaptered (committee substitute) — source
6. AB51 (committee substitute) — source
7. 08/05/16 - Enrolled (enrolled) — source

Votes

• AB 51 QUIRK Concurrence in Senate Amendments — 74–0 (pass) · lower
• 3rd Reading AB51 Quirk By Cannella — 38–0 (pass) · upper
• Do pass. — 16–1 (pass) · lower
• Do pass and be re-referred to the Committee on [Appropriations] — 13–1 (pass) · lower
• Do pass, but first be re-referred to the Committee on [Appropriations] — 11–0 (pass) · upper
• AB 51 QUIRK Assembly Third Reading — 58–14 (pass) · lower

Sponsors

• Quirk — primary (person)
• Chu — coauthor (person)
• Lackey — author (person)

Timeline

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

• 2014-12-01 Read first time. To print. reading-1
• 2014-12-02 From printer. May be heard in committee January 1.
• 2015-01-22 Referred to Com. on TRANS. referral-committee
• 2015-02-11 From committee chair, with author's amendments: Amend, and re-refer to Com. on TRANS. Read second time and amended. reading-2, amendment-introduction, amendment-passage, reading-1
• 2015-02-12 Re-referred to Com. on TRANS. referral-committee
• 2015-04-07 From committee: Do pass and re-refer to Com. on APPR. (Ayes 13. Noes 1.) (April 6). Re-referred to Com. on APPR. referral-committee, committee-passage-favorable, committee-passage
• 2015-04-29 From committee: Do pass. (Ayes 16. Noes 1.) (April 29). committee-passage-favorable, committee-passage
• 2015-04-30 Read second time. Ordered to third reading. reading-2, reading-1
• 2015-05-22 Read third time and amended. Ordered to third reading. (Page 1540.) reading-3, amendment-passage, reading-1
• 2015-05-28 Read third time. Passed. Ordered to the Senate. (Ayes 58. Noes 14. Page 1619.) reading-3, passage, reading-1
• 2015-05-28 In Senate. Read first time. To Com. on RLS. for assignment. reading-1
• 2015-06-18 Referred to Com. on T. & H. referral-committee
• 2015-07-06 In committee: Set, first hearing. Hearing canceled at the request of author.
• 2016-06-01 From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on T. & H. referral-committee, reading-2, amendment-introduction, amendment-passage, reading-1
• 2016-06-15 From committee: Do pass and re-refer to Com. on APPR. (Ayes 11. Noes 0.) (June 14). Re-referred to Com. on APPR. referral-committee, committee-passage-favorable, committee-passage
• 2016-06-27 From committee: Be placed on second reading file pursuant to Senate Rule 28.8. committee-passage
• 2016-06-28 Read second time. Ordered to third reading. reading-2, reading-1
• 2016-08-01 Read third time. Passed. Ordered to the Assembly. (Ayes 38. Noes 0. Page 4729.). reading-3, passage, reading-1
• 2016-08-02 In Assembly. Concurrence in Senate amendments pending. May be considered on or after August 4 pursuant to Assembly Rule 77.
• 2016-08-04 Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 74. Noes 0. Page 5700.). committee-passage-favorable, amendment-passage
• 2016-08-10 Enrolled and presented to the Governor at 3 p.m.
• 2016-08-19 Approved by the Governor. executive-signature
• 2016-08-19 Chaptered by Secretary of State - Chapter 141, Statutes of 2016.

Source

OpenStates / OpenCivicData bulk snapshot 2026-07-01; origin ocd-bill/641198ee-ca5f-4099-bfbe-cc1860e6676f. Confidence: reported (aggregated from official California legislature records).