Richmond, CA Noise Ordinances: Vehicle Noise (2026)
Key Facts
- Statutory Authority
- Stereo audible 50 ft away violates CVC §27007
- Statutory Authority
- Modified exhaust violates CVC §27150/27151
- Statutory Authority
- Diesel idling over 5 min violates CARB 13 CCR §2485
- Statutory Authority
- Sideshows prohibited under CVC §23109
- Richmond Police
- Richmond Police handle enforcement
Summary
Vehicle noise in Richmond is regulated under RMC Chapter 9.52 and California Vehicle Code §§27150-27207. Modified exhaust, loud stereos audible 50 feet away, engine revving, and prolonged idling over 5 minutes in residential zones are prohibited. Enforcement is primarily by Richmond Police Department traffic units.
(a) Every motor vehicle equipped with an internal combustion engine and subject to registration shall at all times be equipped with an adequate muffler in constant operation and properly maintained to prevent any excessive or unusual noise, and no muffler or exhaust system shall be equipped with a cutout, bypass, or similar device.
(b) Except as provided in Division 16.5 (commencing with Section 38000) with respect to off-highway motor vehicles subject to identification, every passenger vehicle operated off the highways shall at all times be equipped with an adequate muffler in constant operation and properly maintained so as to meet the requirements of Article 2.5 (commencing with Section 27200), and no muffler or exhaust system shall be equipped with a cutout, bypass, or similar device.
(c) The provisions of subdivision (b) shall not be applicable to passenger vehicles being operated off the highways in an organized racing or competitive event conducted under the auspices of a recognized sanctioning body or by permit issued by the local governmental authority having jurisdiction, or to vehicles not equipped with an internal combustion engine.
Full Breakdown
Vehicle noise in Richmond is governed by both local and state law. RMC Chapter 9.52 prohibits unnecessary engine revving, horn honking except for warning, and loud stereo systems. California Vehicle Code §27007 prohibits sound from vehicle audio systems audible 50 feet from the vehicle (a standalone infraction). CVC §27150 requires every motor vehicle to have a muffler in good working order to prevent excessive noise; modified exhaust systems that exceed factory noise levels are illegal under CVC §27151. CVC §27153 prohibits any vehicle from producing excessive or unusual noise. Diesel truck idling over 5 minutes is regulated by CARB statewide (13 CCR §2485) with few exceptions. Richmond Police conduct targeted enforcement around known sideshow and street racing hotspots; sideshows specifically are prohibited under CVC §23109 and can result in vehicle impound. Chronic commercial vehicle idling in residential zones can trigger nuisance enforcement.
Frequently Asked Questions
Is it illegal to rev my engine in my driveway?
Can I be cited for a loud stock motorcycle?
Sources & Official References
Other rules in Richmond
California rules heatmap·Compare Richmond to another location·View the California noise ordinances overview
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Vehicle Noise in Nearby Cities
How other cities in Contra Costa County handle vehicle noise.