2 county-level rules, plus city-specific rules for 9 cities in Ventura County, California.
Verified from official government sources
Unincorporated Ventura County enforces Dark Sky lighting in its DKS Overlay Zone (including the Ojai Valley) under NCZO Sec. 8109-4.7. Outdoor luminaires must be fully shielded, directed downward, capped at 850 lumens and 3,000 Kelvin, and off during 'dark hours' from 10:00 p.m. until sunrise. Security lighting may reach 2,600 lumens with motion sensors.
Countywide, NCZO Sec. 8106-8.6(d) requires that any outdoor light over 150 watts or 2,250 lumens be shielded, directed downward and maintained to avoid light trespass beyond the lot line. In the Dark Sky Overlay Zone, Sec. 8109-4.7.4(i) sets quantitative limits: 0.1 foot-candles at the property line for open-space and residential zones, 0.2 for multifamily, and 0.25 for commercial/industrial.
9 cities in Ventura County have their own outdoor lighting rules. Each link goes to that city's dedicated page with code citations.
2 verified rules • Dark Sky Rules, Light Trespass
1 verified rule • Dark Sky Rules
2 verified rules • Dark Sky Rules, Light Trespass
2 verified rules • Dark Sky Rules, Light Trespass
2 verified rules • Dark Sky Rules, Light Trespass
2 verified rules • Dark Sky Rules, Light Trespass
2 verified rules • Dark Sky Rules, Light Trespass
2 verified rules • Dark Sky Rules, Light Trespass
2 verified rules • Dark Sky Rules, Light Trespass
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