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.
Mililani Town, HI
Residential pools in Mililani Town must meet ROH Sec. 16-6.2 barrier standards. Fences at least 48 inches high with self-closing gates are required, on top o...
Mililani Town, HI
Mililani Town retaining walls follow ROH Sec. 21-4.40 rules and HOA review. Fill-retaining walls in required yards cannot exceed 6 feet, and terraced walls a...
Mililani Town, HI
Mililani Town fence materials are limited by both ROH Sec. 21-4.60 definitions and MTA/MMA design guidelines, which typically restrict visible front-yard mat...
Mililani Town, HI
Mililani Town neighbor fence disputes are governed by ROH Sec. 21-4.30 yard rules plus HOA covenants. Honolulu has no spite-fence ordinance, making HOA media...
Mililani Town, HI
Public parks in Mililani Town close during posted night hours under ROH Sec. 10-1.2, while HOA recreation centers follow separate private hours set by the as...
Mililani Town, HI
Mililani Town follows the state juvenile curfew under HRS Sec. 577-16 barring children under 16 from public places between 10 p.m. and 4 a.m. without a paren...
Side-by-side rule comparisons with other cities in Honolulu County.
See how Mililani Town's polystyrene foam rules rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.