La Habra treats vehicles as mobile noise sources under Chapter 9.32. Exhaust, muffler, and on-street vehicle-sound-system noise are primarily governed by the California Vehicle Code, enforced by police.
Under LHMC 9.32.020, a mobile noise source is any non-fixed source, so vehicle noise on private property is subject to the Chapter 9.32 residential standards. However, LHMC 9.32.070(J) exempts any activity preempted by state law, and vehicle exhaust, muffler, and amplified-sound-system noise on public streets are regulated by the California Vehicle Code, including CVC 27150-27151 (adequate muffler, no excessive noise) and CVC 27007 (sound systems audible at 50 feet). La Habra Police enforce these state provisions. The city has no separate local decibel limit for on-road vehicles beyond the Vehicle Code.
Modified exhaust or amplified vehicle audio is cited under the California Vehicle Code (e.g. CVC 27150, 27007) by La Habra Police.
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See how La Habra's vehicle noise rules stack up against other locations.
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