--- type: "Bill" title: "Vehicles: motorized bicycles." description: "Existing law prohibits the operation of a motorized bicycle on a highway unless the owner applies for a license plate and attaches it to the bicycle, as specified. Existing law also requires a specified driver's license or endorsement to operate a motorized bicycle or a moped, except as specified. For purposes of these provisions, existing law defines a \"motorized bicycle\" or \"moped\" in one case as any 2-wheeled or 3-wheeled device having fully operative pedals for propulsion by human power, or having no pedals if powered solely by electrical energy, and an automatic transmission and a motor that produces less than 2 gross brake horsepower and is capable of propelling the device at a maximum speed of not more than 30 miles per hour on level ground." jurisdiction: "us/states/ca" legislature: "California Legislature" session: "20132014" identifier: "AB 2173" citation: "California AB 2173 (20132014)" classification: ["bill"] subjects: ["Vehicles: motorized bicycles."] status: "enacted" primary_sponsors: ["Bradford"] version_count: 7 action_count: 25 vote_count: 4 first_action: "2014-02-20" last_action: "2014-06-25" source: "openstates" source_identifier: "ocd-bill/91585244-48fb-471a-af0d-b717ce07f413" source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201320140AB2173" source_hash: "5eb4701a95df0518be5b0bdc73f4dba11ac979bf88db597d29e4bf3dddbecc3e" 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 2173 (20132014) — Vehicles: motorized bicycles. Existing law prohibits the operation of a motorized bicycle on a highway unless the owner applies for a license plate and attaches it to the bicycle, as specified. Existing law also requires a specified driver's license or endorsement to operate a motorized bicycle or a moped, except as specified. For purposes of these provisions, existing law defines a "motorized bicycle" or "moped" in one case as any 2-wheeled or 3-wheeled device having fully operative pedals for propulsion by human power, or having no pedals if powered solely by electrical energy, and an automatic transmission and a motor that produces less than 2 gross brake horsepower and is capable of propelling the device at a maximum speed of not more than 30 miles per hour on level ground. ## Version chain The bill's text revisions, in order — the diff chain from filing to enrollment. 1. **02/20/14 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201320140AB2173&version=20130AB217399INT) 2. **03/19/14 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201320140AB2173&version=20130AB217398AMD) 3. **04/22/14 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201320140AB2173&version=20130AB217397AMD) 4. **04/30/14 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201320140AB2173&version=20130AB217396AMD) 5. **06/25/14 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201320140AB2173&version=20130AB217394CHP) 6. **AB2173** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201320140AB2173) 7. **06/18/14 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201320140AB2173&version=20130AB217395ENR) ## Votes - Consent Calendar 2nd — **35–0** (pass) · upper - Do pass and be placed on the Consent Calendar. — **10–0** (pass) · upper - Do pass as amended. — **15–0** (pass) · lower - AB 2173 BRADFORD Assembly Third Reading — **78–0** (pass) · lower ## Sponsors - Bradford — primary (person) ## Timeline The legislative action history — every referral, reading, and vote. - **2014-02-20** Read first time. To print. `reading-1` - **2014-02-21** From printer. May be heard in committee March 23. - **2014-03-06** Referred to Com. on TRANS. `referral-committee` - **2014-03-19** 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` - **2014-03-20** Re-referred to Com. on TRANS. `referral-committee` - **2014-04-21** In committee: Set, first hearing. Hearing canceled at the request of author. - **2014-04-22** 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` - **2014-04-23** Re-referred to Com. on TRANS. `referral-committee` - **2014-04-29** From committee: Do pass as amended. (Ayes 15. Noes 0.) (April 28). `committee-passage-favorable, committee-passage, amendment-passage` - **2014-04-30** Read second time and amended. Ordered to second reading. `reading-2, reading-1, amendment-passage` - **2014-04-30** Re-referred to Com. on APPR. pursuant to Joint Rule 10.5. `referral-committee` - **2014-05-01** Re-referred to Com. on APPR. `referral-committee` - **2014-05-05** Withdrawn from committee. - **2014-05-05** Ordered to second reading. - **2014-05-06** Read second time. Ordered to third reading. `reading-2, reading-1` - **2014-05-15** Read third time. Passed. Ordered to the Senate. (Ayes 78. Noes 0. Page 4943.) `reading-3, reading-1, passage` - **2014-05-15** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1` - **2014-05-22** Referred to Com. on T. & H. `referral-committee` - **2014-06-11** From committee: Do pass. To consent calendar. (Ayes 10. Noes 0.) (June 10). `committee-passage-favorable, committee-passage` - **2014-06-12** Read second time. Ordered to consent calendar. `reading-2, reading-1` - **2014-06-16** Read third time. Passed. Ordered to the Assembly. (Ayes 35. Noes 0. Page 3930.). `reading-3, reading-1, passage` - **2014-06-16** In Assembly. Ordered to Engrossing and Enrolling. `committee-passage` - **2014-06-20** Enrolled and presented to the Governor at 11:45 a.m. - **2014-06-25** Approved by the Governor. `executive-signature` - **2014-06-25** Chaptered by Secretary of State - Chapter 60, Statutes of 2014. ## Source OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/91585244-48fb-471a-af0d-b717ce07f413`. Confidence: reported (aggregated from official California legislature records).