Dark Sky Rules: East Honolulu vs Ewa Gentry
How do dark sky rules rules compare between East Honolulu, HI and Ewa Gentry, HI?
East Honolulu has fewer restrictions than Ewa Gentry.
East Honolulu, HI
Honolulu County
East Honolulu commercial, industrial, and recreational development must use full cut-off shielded fixtures under ROH 21-4.100, protecting Hawaii Kai and Aina Haina residential skies and Koko Head observations.
View full East Honolulu rules →Ewa Gentry, HI
Honolulu County
Ewa Gentry's commercial and recreational lighting must use full cut-off shielded fixtures to protect residential neighborhoods and the Ewa Plain's darker skies.
View full Ewa Gentry rules →Key Facts Comparison
| Fact | East Honolulu | Ewa Gentry |
|---|---|---|
| Code section | ROH 21-4.100 | - |
| Fixture type | Full cut-off shielded | - |
| Applies to | Commercial/industrial | - |
| State companion | HRS 201-8.5 | - |
| Rooftop rule | Shield beyond rooftop | - |
| - | - |
Highlighted rows indicate differences between cities.
East Honolulu FAQ
Do residential homes in Aina Haina need full cut-off lighting?
LUO 21-4.100 targets commercial, industrial, and recreational development. Single-family residential fixtures are not directly regulated, but light trespass rules still apply.
Are rooftop bars in Hawaii Kai regulated?
Yes. Non-enclosed rooftop gathering spaces must shield lighting to eliminate illumination beyond the rooftop, protecting neighboring residential views.
What is a full cut-off fixture?
A fixture designed so no light is emitted above horizontal, directing all output downward. This is the standard required by ROH 21-4.100.
Ewa Gentry FAQ
Do Ewa Plain sports field lights qualify?
Outdoor recreational fixtures fall under the rule. Newly installed lighting must meet full cut-off shielding.
Does the rule cover residential porch lights?
The ordinance primarily targets commercial and recreational installations. Residential fixtures are addressed via nuisance.
Compare other topics
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