Rocklin, CA Noise Ordinances: Vehicle Noise (2026)

Rocklin Municipal Code § 10.28.050, titled 'Excessive acceleration—Burning rubber,' prohibits accelerating a motor vehicle within the city limits in a way that causes audible noise from tire friction on a paved surface, or that leaves skid marks on that surface, unless the acceleration is reasonably necessary to avoid a collision. The section sits in Chapter 10.28, 'Driving and Roadway Use Generally,' alongside other roadway-conduct rules such as the ban on driving across newly poured pavement or fresh paint markings (§ 10.28.030) and the prohibition on crossing bicycle paths or horse trails outside specific circumstances (§ 10.28.060).

Rocklin's separate noise ordinance, Chapter 9.52, focuses on construction, landscaping and amplified-sound noise with defined daytime and nighttime hour restrictions, but it does not set its own decibel or hour-based standard for vehicle exhaust, mufflers or stereo systems; the burning-rubber ban in § 10.28.050 is the only vehicle-noise-specific rule found in the code. Chapter 10.28 carries no penalty section of its own, so a violation is enforced through the citywide default in § 1.18.010, which punishes any act the code does not designate as an infraction as a misdemeanor under state general law, with § 1.18.020 making each separate incident a distinct offense. Rocklin Police Department officers enforce the section as part of routine traffic enforcement citywide.