10 county-level rules, plus city-specific rules for 10 cities in Ventura County, California.
Verified from official government sources
In unincorporated Ventura County, the County's Loud or Raucous Nighttime Noise ordinance prohibits loud or raucous noise audible from 50 feet away in residential zones between 9 p.m. and 7 a.m. There is no countywide daytime noise prohibition outside the General Plan's project review standards.
Ventura County's Construction Noise Threshold Criteria and Control Plan defines daytime construction as 7 a.m. to 7 p.m. weekdays and 9 a.m. to 7 p.m. on weekends and holidays. Evening (7-10 p.m.) and nighttime (after 10 p.m.) construction near noise-sensitive uses is normally not permitted and faces far stricter dBA limits.
Ventura County has no decibel limit specifically for barking dogs, but a persistently barking dog at night in a residential zone can be cited as loud or raucous noise under Ordinance No. 4124 (Sec. 6299-1), which bars noise audible 50 feet away from 9 p.m. to 7 a.m. Daytime barking is addressed as a nuisance.
Ventura County does not ban leaf blowers, but Ordinance No. 4124 specifically names backpack blowers, blowers, lawn mowers and lawn edgers as loud or raucous noise, so their use in a residential zone between 9 p.m. and 7 a.m. is prohibited if audible 50 feet away. Statewide, CARB bars sale of new gas blowers.
Ventura County's Ordinance No. 4124 specifically names radios, musical instruments, audio equipment and any device for amplifying sound as loud or raucous noise. Using amplified sound in a residential zone that is audible 50 feet away between 9 p.m. and 7 a.m. is prohibited. Daytime amplified music is not capped by a countywide decibel rule.
Ventura County manages aircraft noise through land-use compatibility, not by limiting flights. General Plan Policy HAZ-9.6 restricts new discretionary residential uses outside the 60 dB CNEL aircraft noise contour unless interiors can be mitigated to 45 dB CNEL. New homes are prohibited in the 65 dB CNEL contour or louder.
Ventura County controls industrial and stationary-source noise through General Plan Policy HAZ-9.2, applied when discretionary projects are reviewed. New noise generators near noise-sensitive uses must keep outdoor noise at the receptor's exterior wall to 55 dBA Leq (day), 50 dBA (evening) and 45 dBA (night), or ambient plus 3 dBA, whichever is greater.
Ventura County's nighttime noise ordinance uses an audibility-at-50-feet test rather than a decibel number. Numeric dBA limits come from the General Plan's noise-compatibility standards for discretionary projects: stationary sources are capped at 55 dBA Leq (day), 50 dBA (evening) and 45 dBA (night) at the nearest sensitive receptor.
Outdoor music at homes in unincorporated Ventura County is limited at night by Ordinance No. 4124, which bars amplified or instrumental sound audible 50 feet away between 9 p.m. and 7 a.m. in residential zones. Commercial outdoor-music venues and events are conditioned under the General Plan's stationary-source standards.
Ventura County has no separate vehicle-noise decibel ordinance; on-road vehicle noise in the unincorporated county is controlled by California state law. The Vehicle Code requires an adequate muffler, caps modified exhaust at 95 dBA for vehicles under 6,000 lbs, and bars car sound systems audible 50 feet away on a highway.
10 cities in Ventura County have their own noise ordinances rules. Each link goes to that city's dedicated page with code citations.
7 verified rules • Aircraft Noise, Amplified Music & Events
6 verified rules • Aircraft Noise, Amplified Music & Events
9 verified rules • Aircraft Noise, Amplified Music & Events
10 verified rules • Aircraft Noise, Amplified Music & Events
10 verified rules • Aircraft Noise, Amplified Music & Events
8 verified rules • Aircraft Noise, Amplified Music & Events
8 verified rules • Aircraft Noise, Amplified Music & Events
9 verified rules • Aircraft Noise, Amplified Music & Events
9 verified rules • Aircraft Noise, Amplified Music & Events
8 verified rules • Aircraft Noise, Amplified Music & Events
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