Unincorporated Orange County has no comprehensive dark-sky ordinance. The Zoning Code's general rule (Sec. 7-9-67) simply requires all lighting to be designed and located to confine direct rays to the premises, preventing light from spilling onto neighbors.
Unlike some rural California jurisdictions with formal 'dark sky' lighting standards, unincorporated Orange County does not have a detailed dark-sky ordinance specifying lumen caps, color temperature, full-cutoff fixtures, or curfew dimming. The governing rule in the Comprehensive Zoning Code is brief: Sec. 7-9-67 (Lighting and illumination) states that all lighting shall be designed and located so as to confine direct rays to the premises. Individual zoning districts incorporate this standard by reference ('Lighting and illumination: Per section 7-9-67'). Related provisions address specific contexts -- for example, Sec. 7-9-114.4(5) requires sign illumination to be designed so direct light rays are confined to the site and not create a nuisance for residential buildings in a direct line of sight, and parking-area lighting must be directed to avoid glare onto adjacent streets and properties. Some special uses carry stricter caps; for instance, certain facilities limit outdoor lighting to one foot-candle directed toward the site. Overall, the County relies on the 'confine direct rays to the premises' standard rather than a quantitative dark-sky code. Property owners in scenic or wildland-adjacent areas should still shield fixtures and aim them downward both to comply with Sec. 7-9-67 and to avoid nuisance complaints, even though a formal dark-sky designation is not in place.
Lighting that casts direct rays beyond the property line violates Sec. 7-9-67 and may be subject to code enforcement requiring shielding, redirection, or removal of offending fixtures.
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Side-by-side rule comparisons with other cities in Orange County.
See how other cities in Orange County handle dark sky rules.
See how Mission Viejo's dark sky rules rules stack up against other locations.
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