Quiet hours in Marin County, CA — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Marin County Code Chapter 6.70 (Loud and Unnecessary Noises) prohibits any loud, raucous, or unnecessary noise that disturbs the peace, comfort, repose, or quiet of any neighborhood or person of normal sensitivity in unincorporated Marin County.
Chapter 6.70 of the Marin County Code regulates loud and unnecessary noises in unincorporated areas of the county. Section 6.70.020 establishes the general prohibition, and Section 6.70.030 enumerates specific prohibited noises including loud radios, musical instruments, animals, machinery, and similar sources that disturb neighbors. The ordinance applies countywide in unincorporated jurisdictions and is enforced by the Sheriff and Code Compliance. Construction-related noise is further regulated by Section 6.70.030(5), which sets specific permitted hours for construction equipment.
Violations of Chapter 6.70 are enforceable as infractions, punishable by fines or by administrative or civil action. Failure to obey a directive from an enforcement officer to cease the noise-generating activity is charged as a misdemeanor.
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See how Marin County's quiet hours rules stack up against other locations.
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