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Alameda County, CA Noise Ordinances: Amplified Music & Outdoor Sound (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Amplified music rules in Alameda County, CA, also called sound permit, PA system, or live music ordinances, set decibel limits, time-of-day restrictions, and when permits are required.

Key Facts

Distance test
Audible 50 feet away
Time limit
None: applies any hour
Enforced by
Sheriff's peace officers
First offense
$100 infraction fine
Applies in
Unincorporated county, not cities

Summary

Unincorporated Alameda County bars any radio, stereo, TV, or musical instrument that's plainly audible 50 feet away, at any hour: the rule covers Castro Valley and San Lorenzo, not Oakland or Berkeley.

City-specific rules exist: Livermore, Fremont, San Leandro, Hayward, Berkeley, and Oakland have their own amplified music & outdoor sound rules that differ from Alameda County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

1.Radio, Television Sets, Musical Instruments and Similar Devices. Operating, playing or permitting the operation or playing of any radio, stereo, television set, audio equipment, electronic equipment, drum, musical instrument, or device which produces or reproduces sound at any time of day plainly audible at a distance of fifty (50) feet from such device. This section does not apply to places of public entertainment or to events for which a lawful permit has been obtained, provided that the activities producing sound are being conducted in compliance with the permit. This section does not apply to the operation of sound amplification systems in vehicles to the extent those systems are subject to California Vehicle Code Section 27007.2.Animals and Birds. The keeping of any animal or bird, as pet or livestock, which causes frequent or continuous noise plainly audible at a distance of fifty (50) feet from such animal. For the purposes of this subsection, the animal noise shall not be deemed a disturbance or nuisance if the noise is in response to a person trespassing or threatening to trespass upon private property in or upon which the animal is situated or if the noise is in response to someone teasing or provoking the animal. However, any person teasing or provoking the animal noise shall be guilty of a violation of this chapter.

Source: Alameda County Title 6 Health & SafetyView official code

Full Breakdown

Alameda County Code § 6.60.050(B)(1) makes it unlawful to operate or play a radio, stereo, TV, drum, or musical instrument that's plainly audible fifty feet away, at any hour of the day, anywhere in the unincorporated county. Castro Valley, San Lorenzo, Ashland, Cherryland, and Sunol, not inside Oakland, Berkeley, or any of the county's fourteen incorporated cities, each of which runs its own noise code. Permitted public-entertainment events are exempt, as are vehicle sound systems already regulated under Vehicle Code § 27007. Peace officers, not the county's environmental health director, enforce this specific subsection under § 6.60.100(A).

Violations & Fines

A first violation is a $100 infraction, $200 for a second within a year, and $500 for each one after that under § 6.60.090; the county can also seek a nuisance-abatement injunction.

Frequently Asked Questions

Does this rule apply inside the city of Alameda or Oakland?
No. Alameda County's noise code governs only the unincorporated area. Castro Valley, San Lorenzo, and similar communities. Oakland, Berkeley, and the county's other incorporated cities enforce their own separate noise ordinances.
Is there an exception for parties or events?
Yes: permitted public-entertainment events are exempt, and vehicle sound systems already regulated under Vehicle Code § 27007 are excluded from this specific subsection.

Sources & Official References

Other rules in Alameda County

All Alameda County rules

California rules heatmap·Compare Alameda County to another location·View the California noise ordinances overview

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Amplified Music & Outdoor Sound in Cities Across Alameda County