Existing law requires the Department of Transportation to include in the California Manual on Uniform Traffic Control Devices a requirement that the department and local authorities, when setting speed limits, round speed limits to the nearest 5 miles per hour of the 85th percentile speed of traffic as determined by an engineering and traffic survey. Existing law authorizes the department or a local authority to round the speed limit down to the lower 5 miles per hour increment in instances when the speed limit should be rounded up, but prohibits that speed limit from being further reduced for any reason.
California AB 2363 (20172018) — Zero Traffic Fatalities Task Force.
Existing law requires the Department of Transportation to include in the California Manual on Uniform Traffic Control Devices a requirement that the department and local authorities, when setting speed limits, round speed limits to the nearest 5 miles per hour of the 85th percentile speed of traffic as determined by an engineering and traffic survey. Existing law authorizes the department or a local authority to round the speed limit down to the lower 5 miles per hour increment in instances when the speed limit should be rounded up, but prohibits that speed limit from being further reduced for any reason.
Version chain
The bill's text revisions, in order — the diff chain from filing to enrollment.
Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — 10–2 (pass) · upper
Do pass as amended. — 15–0 (pass) · lower
Do pass as amended and be re-referred to the Committee on [Appropriations] — 13–1 (pass) · lower
3rd Reading AB2363 Friedman et al. By Wiener — 28–7 (pass) · upper
AB 2363 FRIEDMAN Concurrence in Senate Amendments — 78–0 (pass) · lower
AB 2363 FRIEDMAN Assembly Third Reading — 77–0 (pass) · lower
Sponsors
Friedman — primary (person)
Frazier — author (person)
Timeline
The legislative action history — every referral, reading, and vote.
2018-02-14 Read first time. To print. reading-1
2018-02-15 From printer. May be heard in committee March 17.
2018-04-02 Referred to Com. on TRANS. referral-committee
2018-04-02 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
2018-04-03 Re-referred to Com. on TRANS. referral-committee
2018-04-25 From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 13. Noes 1.) (April 23). amendment-passage, committee-passage, amendment-introduction
2018-04-26 Read second time and amended. reading-1, amendment-passage, reading-2
2018-04-30 Re-referred to Com. on APPR. referral-committee
2018-05-09 In committee: Set, first hearing. Referred to APPR. suspense file. referral-committee
2018-05-25 From committee: Amend, and do pass as amended. (Ayes 15. Noes 0.) (May 25). amendment-passage, committee-passage, amendment-introduction
2018-05-25 Read second time and amended. Ordered returned to second reading. reading-1, amendment-passage, reading-2
2018-05-29 Read second time. Ordered to third reading. reading-2, reading-1
2018-05-30 Read third time. Passed. Ordered to the Senate. (Ayes 77. Noes 0. Page 5487.) reading-3, passage, reading-1
2018-05-31 In Senate. Read first time. To Com. on RLS. for assignment. reading-1
2018-06-07 Referred to Com. on T. & H. referral-committee
2018-06-20 From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 10. Noes 2.) (June 19). amendment-passage, committee-passage, amendment-introduction
2018-06-21 Read second time and amended. Re-referred to Com. on APPR. amendment-passage, reading-2, referral-committee, reading-1
2018-08-07 From committee: Amend, and do pass as amended. (Ayes 5. Noes 1.) (August 6). amendment-passage, committee-passage, amendment-introduction
2018-08-08 Read second time and amended. Ordered to third reading. reading-1, amendment-passage, reading-2
2018-08-13 Read third time. Passed. Ordered to the Assembly. (Ayes 28. Noes 7. Page 5271.). reading-3, passage, reading-1
2018-08-14 In Assembly. Concurrence in Senate amendments pending. May be considered on or after August 16 pursuant to Assembly Rule 77.
2018-08-20 Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 78. Noes 0. Page 6372.). committee-passage-favorable, amendment-passage
2018-08-24 Enrolled and presented to the Governor at 4:30 p.m.
2018-09-21 Approved by the Governor. executive-signature
2018-09-21 Chaptered by Secretary of State - Chapter 650, Statutes of 2018.
Source
OpenStates / OpenCivicData bulk snapshot 2026-07-01; origin ocd-bill/02a67c17-a697-43f8-aab0-a2acb5c79367. Confidence: reported (aggregated from official California legislature records).