Barking dog rules in San Mateo County, CA — also called nuisance dog, dog noise, or excessive barking ordinances — define when a barking dog becomes a code violation and how complaints are handled.
There is no separate barking-dog decibel rule for unincorporated San Mateo County; persistent barking is addressed under the County's General Noise Regulation (4.88.350), which prohibits unreasonably loud, unnecessary or unusual noise that disturbs the peace, with animal complaints handled through the County and its contracted animal-control services.
The County Noise Control chapter does not contain a dedicated animal-noise section, but Section 4.88.350 (General Noise Regulation) makes it unlawful for any person to willfully or negligently make or continue any unreasonably loud, unnecessary or unusual noise that disturbs the peace and quiet of a neighborhood or causes discomfort or annoyance to a person of normal sensitivity. Persistent or continuous dog barking falls squarely within this language. In deciding whether a violation exists, 4.88.350 directs that factors be weighed including the sound level of the objectionable noise, the sound level of the background noise, the proximity of the noise to residential sleeping or hospital facilities, the nature and zoning of the area, the number of persons affected, and the time of day or night the noise occurs. Because there is no fixed decibel threshold for barking, complaints are typically supported by a log of dates and times and may require corroboration before a citation issues.
Report barking-dog disturbances in the unincorporated county to the Sheriff's non-emergency line or County Code Enforcement (650) 363-4825; animal-specific complaints are routed to the County's animal-control provider. Persistent disturbance can be abated as a public nuisance.
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See how San Mateo County's barking dogs rules stack up against other locations.
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