East Honolulu vs Mililani Town
How do industrial noise rules compare between East Honolulu, HI and Mililani Town, HI?
East Honolulu and Mililani Town have similar restriction levels.
East Honolulu, HI
Honolulu County
ROH Chapter 41 Article 6 supplements state HAR 11-46 decibel limits for any industrial or stationary noise sources impacting East Honolulu residential neighborhoods.
View full East Honolulu rules →Mililani Town, HI
Honolulu County
Stationary noise sources in Mililani Town, including HVAC, commercial refrigeration, and data center equipment at Mililani Tech Park, must meet Hawaii HAR 11-46 dBA caps by zoning class.
View full Mililani Town rules →Key Facts Comparison
| Fact | East Honolulu | Mililani Town |
|---|---|---|
| Code Section | ROH Section 41-6 | - |
| State Rule | HAR 11-46 | - |
| Residential Class | Class A strictest | - |
| Joint Enforcement | DOH and HPD | - |
| - | - |
Highlighted rows indicate differences between cities.
East Honolulu FAQ
What dBA applies near Hawaii Kai homes?
Class A residential zones are limited to roughly 55 dBA daytime and 45 dBA nighttime under HAR 11-46, measured at the receiving property line.
Can a neighbor's pool pump violate this rule?
Yes, if it exceeds HAR 11-46 dBA limits at the East Honolulu property line, DOH can require abatement. Quieter equipment or enclosures are common fixes.
Mililani Town FAQ
Are rooftop AC units covered?
Yes. Residential AC must stay under the dBA cap at adjacent property lines, especially at night.
Who inspects noise levels?
Hawaii DOH field staff take calibrated sound-meter readings during complaint investigations.
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