2 rules for unincorporated Calaveras County, California.
Verified from official government sources
Unincorporated Calaveras County protects its rural night sky through Zoning Code Section 17.16.100 (Lighting and Illumination). All new or replaced outdoor fixtures must generally be fully shielded or full cut-off, must not exceed 0.1 foot-candles at the property line, and must respect color-temperature caps of 3,500K (5,000K for security). Mercury-vapor lights are prohibited for any purpose.
Calaveras County limits light trespass onto neighbors under Zoning Code Section 17.16.100. Light at the property line may not exceed 0.1 foot-candles, all lights must be selected and directed to prevent spillover and glare onto adjacent properties, and no unobstructed beam of exterior light may be directed off-site. Fixtures must generally be fully shielded or full cut-off.
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