Hawaii has no statewide polystyrene ban, but Honolulu, Hawaii County, Maui County, and Kauai County have adopted ordinances prohibiting food vendors from using polystyrene foam containers for prepared foods.
Like plastic bags, polystyrene foodware is regulated entirely at the county level in Hawaii. Honolulu's ROH Chapter 41-23 prohibits food vendors from selling or providing prepared food in polystyrene foam containers. Maui County (Title 20.25) and Hawaii County (HCC Chapter 14) have similar rules, and Kauai County restricts polystyrene foodware at facilities and county events. Bills to enact a statewide polystyrene ban have been introduced repeatedly in the legislature but have not become law as of 2026. The combined county ordinances effectively cover the entire state's food-vendor industry. Limited exemptions exist for raw meat packaging and pre-packaged products from outside the state.
County polystyrene ordinance violations typically carry warnings followed by escalating fines from $100 to $1,000.
Waipahu, HI
Waipahu residential pools must be enclosed under ROH Sec. 16-6.2, with companion public-pool standards at 16-7.9 covering apartment complexes and condominium...
Waipahu, HI
Waipahu retaining walls fall under ROH 21-4.40, capping fill-bearing walls in required yards at 6 feet with terraced heights combined, impacting stream-side ...
Waipahu, HI
Waipahu fences follow the LUO fence definition in ROH 21-4.60, allowing wrought iron, wood, vinyl, plastic, and wire on post foundations, with chain-link com...
Waipahu, HI
Waipahu neighbor fence disputes apply ROH 21-4.30 yard setbacks with 21-4.60 height limits, since Hawaii has no dedicated spite fence statute for Waipahu's t...
Waipahu, HI
Public parks in Waipahu, including Waipahu District Park and Hans L'Orange Park, are closed during posted night hours. Entering closed parks is prohibited, t...
Waipahu, HI
Waipahu follows Hawaii state juvenile curfew under HRS 577-16. Children under 16 cannot be in public places between 10 pm and 4 am without a parent or guardian.
Side-by-side rule comparisons with other cities in Honolulu County.
See how Waipahu's polystyrene foam rules rules stack up against other locations.
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