Composting: Honolulu vs Mililani Town
How do composting rules compare between Honolulu, HI and Mililani Town, HI?
Honolulu and Mililani Town have similar restriction levels.
Honolulu, HI
Honolulu County
Honolulu County mandates food waste recycling under ROH Sec. 42-3.5, with Ordinance 23-30 adding curbside food scrap collection island-wide by April 1, 2025 through the G.R.O.W. Program.
View full Honolulu rules →Mililani Town, HI
Honolulu County
Mililani Town residents and food businesses follow ROH Sec. 42-3.5; curbside food scrap collection is phased in under the islandwide G.R.O.W. Program.
View full Mililani Town rules →Key Facts Comparison
| Fact | Honolulu | Mililani Town |
|---|---|---|
| Code section | ROH Sec. 42-3.5 | - |
| Ordinance | Ord. 23-30 (Bill 47) | - |
| Program | G.R.O.W. curbside | G.R.O.W. curbside |
| Start date | April 1, 2025 | April 1, 2025 |
| Commercial mandate | Yes for food establishments | - |
| Code | - | ROH Sec. 42-3.5 |
| Commercial duty | - | Mandatory diversion |
Highlighted rows indicate differences between cities.
Honolulu FAQ
Do I have to separate food scraps in Honolulu County?
Yes, as the G.R.O.W. Program rolls out island-wide. Commercial food establishments must already divert food waste under Ordinance 23-30 and ROH Sec. 42-3.5.
Can I still backyard compost?
Yes. Home composting on private property remains unregulated and is encouraged as an alternative to curbside diversion across Oahu.
Mililani Town FAQ
Does the MTA require cart screening in Mililani?
Yes. Many Mililani tracts require carts to be stored out of street view except on pickup days. Check tract-specific architectural guidelines.
Do Mililani Town Center restaurants need hauler contracts?
Yes. Commercial food establishments must arrange certified diversion service under ROH Sec. 42-3.5 and keep manifests for inspection.
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