Existing law requires every motor vehicle subject to registration to be equipped with an adequate muffler in constant operation and properly maintained to prevent any excessive or unusual noise and prohibits a muffler or exhaust system from being equipped with a cutout, bypass, or similar device. Existing law further prohibits the modification of an exhaust system of a motor vehicle in a manner that will amplify or increase the noise emitted by the motor of the vehicle so that the vehicle exceeds existing noise limits when tested in accordance with specified standards.
California AB 2496 (20212022) — Vehicles: exhaust systems.
Existing law requires every motor vehicle subject to registration to be equipped with an adequate muffler in constant operation and properly maintained to prevent any excessive or unusual noise and prohibits a muffler or exhaust system from being equipped with a cutout, bypass, or similar device. Existing law further prohibits the modification of an exhaust system of a motor vehicle in a manner that will amplify or increase the noise emitted by the motor of the vehicle so that the vehicle exceeds existing noise limits when tested in accordance with specified standards.
Version chain
The bill's text revisions, in order — the diff chain from filing to enrollment.
AB 2496 Petrie-Norris Concurrence in Senate Amendments — 76–0 (pass) · lower
3rd Reading AB2496 Petrie-Norris et al. By Portantino — 32–7 (pass) · upper
AB 2496 Petrie-Norris Assembly Third Reading — 69–0 (pass) · lower
Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — 15–0 (pass) · upper
Do pass as amended. — 12–0 (pass) · lower
Do pass as amended — 6–1 (pass) · upper
Placed on suspense file — 7–0 (pass) · upper
Do pass and be re-referred to the Committee on [Appropriations] — 14–0 (pass) · lower
Sponsors
Petrie-Norris — primary (person)
Davies — coauthor (person)
Friedman — author (person)
Portantino — coauthor (person)
Ward — coauthor (person)
Timeline
The legislative action history — every referral, reading, and vote.
2022-02-17 Read first time. To print. reading-1
2022-02-18 From printer. May be heard in committee March 20.
2022-03-17 Referred to Com. on TRANS. referral-committee
2022-03-17 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-1, reading-2
2022-03-21 Re-referred to Com. on TRANS. referral-committee
2022-04-18 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-1, reading-2
2022-04-19 Re-referred to Com. on TRANS. referral-committee
2022-04-26 Coauthors revised.
2022-04-26 From committee: Do pass and re-refer to Com. on APPR. (Ayes 14. Noes 0.) (April 25). Re-referred to Com. on APPR. committee-passage, committee-passage-favorable, referral-committee
2022-05-11 In committee: Set, first hearing. Referred to suspense file. referral-committee
2022-05-19 From committee: Amend, and do pass as amended. (Ayes 12. Noes 0.) (May 19). amendment-introduction, amendment-passage, committee-passage
2022-05-19 Read second time and amended. Ordered returned to second reading. amendment-passage, reading-1, reading-2
2022-05-23 Read second time. Ordered to third reading. reading-1, reading-2
2022-05-26 Read third time. Passed. Ordered to the Senate. (Ayes 69. Noes 0.) passage, reading-1, reading-3
2022-05-27 In Senate. Read first time. To Com. on RLS. for assignment. reading-1
2022-06-08 Referred to Com. on TRANS. referral-committee
2022-06-20 From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on TRANS. amendment-introduction, amendment-passage, reading-1, reading-2, referral-committee
2022-06-30 From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 15. Noes 0.) (June 28). amendment-introduction, amendment-passage, committee-passage, referral-committee
2022-08-01 Read second time and amended. Re-referred to Com. on APPR. amendment-passage, reading-1, reading-2, referral-committee
2022-08-08 In committee: Referred to suspense file. referral-committee
2022-08-11 From committee: Amend, and do pass as amended. (Ayes 6. Noes 1.) (August 11). amendment-introduction, amendment-passage, committee-passage
2022-08-11 Read second time and amended. Ordered returned to second reading. amendment-passage, reading-1, reading-2
2022-08-15 Read second time. Ordered to third reading. reading-1, reading-2
2022-08-24 Read third time and amended. Ordered to second reading. amendment-passage, reading-1, reading-3
2022-08-25 Read second time. Ordered to third reading. reading-1, reading-2
2022-08-29 Read third time. Passed. Ordered to the Assembly. (Ayes 32. Noes 7. Page 5196.). passage, reading-1, reading-3
2022-08-29 In Assembly. Concurrence in Senate amendments pending.
2022-08-30 Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 76. Noes 0.). amendment-passage, committee-passage-favorable
2022-09-09 Enrolled and presented to the Governor at 4 p.m.
2022-09-27 Approved by the Governor. executive-signature
2022-09-27 Chaptered by Secretary of State - Chapter 595, Statutes of 2022. became-law
Source
OpenStates / OpenCivicData bulk snapshot 2026-07-01; origin ocd-bill/9cf60ecc-cfb7-4024-80f7-695fd3178952. Confidence: reported (aggregated from official California legislature records).