Honolulu vs Waipahu
How do composting rules compare between Honolulu, HI and Waipahu, HI?
Honolulu and Waipahu 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 →Waipahu, HI
Honolulu County
Waipahu residents follow ROH Sec. 42-3.5 food waste recycling and the G.R.O.W. curbside program, with home composting practical for many multigenerational household yards.
View full Waipahu rules →Key Facts Comparison
| Fact | Honolulu | Waipahu |
|---|---|---|
| Code section | ROH Sec. 42-3.5 | - |
| Ordinance | Ord. 23-30 (Bill 47) | - |
| Program | G.R.O.W. curbside | G.R.O.W. food scrap program |
| Start date | April 1, 2025 | - |
| Commercial mandate | Yes for food establishments | - |
| Code | - | ROH Sec. 42-3.5 |
| Curbside start | - | April 1, 2025 |
| Commercial | - | Mandatory diversion rules |
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.
Waipahu FAQ
Can a Waipahu household composts bones or cooked rice?
Home compost bins generally avoid bones and oily foods to discourage pests. Curbside G.R.O.W. collection accepts a broader range of accepted items under program rules.
Do Waikele outlet food vendors need to divert food waste?
Yes. Commercial food establishments have mandatory food-waste diversion obligations under ROH Sec. 42-3.5, regardless of location within the outlets complex.
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