Fairfield, CA Noise Ordinances: Vehicle Noise (2026)
Key Facts
- Horn use
- only as permitted by Vehicle Code
- Engine racing
- banned except necessary repair/testing
- Muffler rule
- no stand-alone decibel standard
- Applies
- 24 hours a day
- Governing section
- § 25.1404
- First offense fine
- up to $100
Summary
Fairfield Municipal Code § 25.1404 bans sounding a vehicle horn or signal device for any purpose other than one required or permitted by the state Vehicle Code, and separately bans racing a motor vehicle's engine except while necessarily repairing, adjusting, or testing it without disturbing a nearby resident.
Sounding horns and signal devices - The sounding of any horn or signal device on any auto-mobile, motorcycle, bus, street car, or other vehicle in any other manner or circumstances or for any other purpose than required or permitted by the vehicle code or other laws of the state. Racing engine - Racing the engine of any motor vehicle, except when necessary to do so in the course of repairing, adjusting or testing but not so that a reasonable person owning, using, or occupying property in the neighborhood is disturbed.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4962673; v0 updated 2026-02-17).
Full Breakdown
1404 lists two vehicle-specific prohibitions inside its noise ordinance. The 'sounding horns and signal devices' clause makes it unlawful to sound any horn or signal device on an automobile, motorcycle, bus, street car, or other vehicle in any manner or for any purpose other than as required or permitted by the Vehicle Code or other state law, reaching non-emergency horn honking and similar attention-getting use. The 'racing engine' clause separately bars racing the engine of any motor vehicle, except when necessary in the course of repairing, adjusting, or testing it, and even that exception only holds if a reasonable person owning, using, or occupying nearby property is not disturbed. 1401's thresholds, or that disturbs a neighbor under the racing-engine clause, is the enforcement path rather than a separate muffler-decibel rule. m.
Violations & Fines
The general penalty at Chapter 1, Article I, § 1.7 applies: first offense infraction, fine up to $100; second offense within a year, infraction up to $250 or misdemeanor up to $1,000 fine and six months in county jail. Fairfield Police Department officers issue the citation at the roadside, most often during a traffic stop.
Frequently Asked Questions
Is honking my horn without reason illegal in Fairfield?
Can I get cited for a loud exhaust or revving engine in Fairfield?
Do Fairfield's vehicle noise rules apply only at night?
Sources & Official References
Other rules in Fairfield
California rules heatmap·Compare Fairfield to another location·View the California noise ordinances overview
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How other cities in Solano County handle vehicle noise.