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Legislation to Repeal New California Exhaust Noise Law


    By SEMA Washington, D.C., Staff


    California Assembly members Jim Frazier and Tim Grayson introduced SEMA-supported legislation (A.B. 390) to repeal a 2018 law (A.B. 1824) that amended how California law enforcement officials issue citations for exhaust noise violations. Both assemblymen are members of the SEMA-supported State Automotive Enthusiast Leadership Caucus and have previously attended the SEMA Show. Assemblyman Frazier is the Chair of the Committee on Transportation.


    Signed by then-Governor Jerry Brown in June of 2018, A.B. 1824 amended how excess exhaust noise violations are treated by law enforcement. Pursuant to the law, a vehicle cited for violating exhaust noise laws no longer receive what is known as a “fix-it” ticket. Instead, violations now result in an immediate fine. A.B. 390 would re-institute law enforcement’s discretion to issue “fix-it” tickets.


    In California, exhaust systems installed on motor vehicles with a manufacturer’s gross vehicle weight rating of less than 6,000 lbs., other than motorcycles, may not exceed a sound level of 95 decibels when tested under Society of Automotive Engineers (SAE) test procedure J1492 (formerly J1169). This would be unchanged by A.B. 390.


    A.B. 390 is currently awaiting committee assignment in the Assembly. Legislation introduced in the state must undergo a 30-day waiting period before consideration by the legislature.


    Supporters can stay informed on this and other issues by signing-up for the SEMA Action Network (SAN). There is no cost or obligation to receive updates on the bill’s progress and how to shape its future.


    For more information: Fact vs. Fiction: California’s New Exhaust Noise Law.


    Questions? Please contact Christian Robinson at


    Source: SEMA - Specialty Equipment Market Association


  • RexTheRoadDog My bike can speak with authority when needed, and I run Screaming Eagle mufflers so I guess I'd be in trouble there. BUT... I've ( as I know everyone else has) been around bikers who just make noise to annoy people and understand how these laws get on the books.
  • blurplebuzz The hangup with this sort of law is the lack of enforcement by officers on the street who usually have better things to do w/their time then ticketing noise violations.It might be a nice extra to use on the noisy motorcycle rider already pulled over for...  more