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Veh. Code, § 27151 · Article 2. Exhaust Systems

Veh. Code, § 27151

Verbatim from the official edition

Text — As published in the Legislative Counsel's database, tables dated October 18, 2026 (pubinfo_2025.zip)

(a) A person shall not modify the exhaust system of a motor vehicle in a manner which will amplify or increase the noise emitted by the motor of the vehicle so that the vehicle is not in compliance with the provisions of Section 27150 or exceeds the noise limits established for the type of vehicle in Article 2.5 (commencing with Section 27200). A person shall not operate a motor vehicle with an exhaust system so modified.

(b) For the purposes of exhaust systems installed on motor vehicles with a manufacturer’s gross vehicle weight rating of less than 6,000 pounds, other than motorcycles, a sound level of 95 dbA or less, when tested in accordance with the most current SAE International standard, complies with this section. Motor vehicle exhaust systems or parts thereof include, but are not limited to, nonoriginal exhaust equipment.

Notes and commentary — not statutory text

History

Amended by Stats. 2022, Ch. 295, Sec. 18. (AB 2956) Effective January 1, 2023.

Source of truth

Edition
As published in the Legislative Counsel's database, tables dated October 18, 2026 (pubinfo_2025.zip)
Official file
https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH&sectionNum=27151.
Text hash
sha256 c6343af63c9d9a7bcf59705c08d259ed4098ae1e21a272a8c17fbc1ba1df64a2
Composed by
compose_ca.py 2026-10-22: the Legislative Counsel's CAML content files read by a tokenizer (caml_readers.reader_a); an independent xml.etree reading (caml_readers.reader_b) agrees on every section

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