Honolulu County addresses light trespass through LUO 21-4.100 shielding and full cut-off requirements rather than a standalone foot-candle standard, with public nuisance law under ROH Chapter 41 available as backup enforcement.
Light trespass in Honolulu County is controlled indirectly through the shielding and cut-off mandates of LUO 21-4.100, the same section that establishes dark-sky standards. The ordinance functions as a light-trespass control by requiring full cut-off fixtures that eliminate direct illumination onto adjacent country, residential, apartment, apartment mixed-use, or resort zoning districts, and beyond the edge of rooftop gathering spaces. Honolulu does not have a standalone light-trespass chapter with property-line foot-candle limits; enforcement relies on the shielding requirement plus general nuisance enforcement under ROH Chapter 41 (Public Nuisance) where applicable.
Direct light trespass into protected districts can be cited as a LUO violation under 21-4.100 and, in egregious cases, as a public nuisance under ROH Chapter 41.
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Side-by-side rule comparisons with other cities in Honolulu County.
See how other cities in Honolulu County handle light trespass.
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