10 rules for unincorporated Sierra County, California.
Verified from official government sources
Unincorporated Sierra County has no general, jurisdiction-wide quiet-hours noise ordinance. The only codified quiet hours apply to short-term rentals, where SCC 15.10.060 imposes quiet hours from 10:00 p.m. to 7:00 a.m. daily. Elsewhere, general nuisance and California law apply.
Unincorporated Sierra County does not set fixed allowable construction hours by ordinance. Instead, grading-permit conditions under SCC 12.08.220 can specify hours of operation and noise control on a project basis. No general code section bans construction during specific hours county-wide.
Unincorporated Sierra County prohibits dogs that bark or howl so continuously as to unreasonably disturb the neighborhood. Under SCC 8.08.160, barking or howling for an aggregate of 20 minutes out of one hour is sufficient for conviction. Animal Control enforces; permitted commercial kennels are exempt.
Unincorporated Sierra County has no ordinance regulating leaf blowers. A search of the county code returns no leaf-blower provision and no equipment-specific noise limit. Leaf-blower noise is governed only by general nuisance principles and applicable California law, including statewide rules on new gas-powered equipment.
Unincorporated Sierra County has no general amplified-sound or loudspeaker ordinance; a code search for 'amplified' returns no match. The only express limit on music is for short-term rentals, where SCC 15.10.060 bars music detectable from adjoining properties during 10:00 p.m. to 7:00 a.m. quiet hours.
At the county-run Sierraville-Dearwater Airport, SCC 9.24.130 bars operating aircraft so as to cause 'unnecessary noise' as determined by federal, state, or local law. Aircraft noise in flight is otherwise controlled by the FAA under federal preemption, so the county cannot set its own in-flight noise limits.
Unincorporated Sierra County addresses industrial noise through zoning compatibility rather than a decibel ordinance. The IN industrial district (SCC 15.12.150) intends to exclude uses producing excessive noise, and surface-mining operations (SCC 33.05.150) must provide noise/visual buffers as conditions of approval.
Unincorporated Sierra County sets no general decibel-limit table. The only numeric noise limit in the entire code is SCC 8.04.260, capping solid-waste collection trucks at 75 decibels at 25 feet during stationary compaction. There is no residential or commercial dBA limit by zone or time of day.
Unincorporated Sierra County has no general outdoor-music or special-event noise ordinance. The only express limit is for short-term rentals, where SCC 15.10.060 bars outdoor music, parties, and gatherings detectable from adjoining property during 10:00 p.m. to 7:00 a.m. quiet hours and prohibits special events.
Unincorporated Sierra County has no local muffler or exhaust-noise ordinance; a code search for 'muffler' returns no match. Vehicle exhaust noise on county and state roads is governed by California Vehicle Code Sections 27150 and 27151, which require an adequate muffler and ban noise-amplifying exhaust modifications.
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