Mililani Mauka propane storage follows NFPA 58 via Honolulu Chapter 20, with permits and plan review triggered at 125 gallons aggregate capacity and vehicle barrier rules near roads.
ROH Chapter 20 adopts NFPA 1 Chapter 69, incorporating NFPA 58, the LP-Gas Code. Typical Mililani Mauka residential uses such as grill cylinders and small whole-house tanks are allowed with proper installation. A permit and plan submittal to HFD are required when a container or aggregate of containers reaches 125 gallons water capacity, and vehicular barrier protection is required within 10 feet of public vehicular ways. Commercial propane cages at Mililani Mauka Shopping Center or adjacent retail must meet setback, ventilation, and separation distance rules, and HOA rules may limit outside cylinder storage.
Non-compliant installations can bring HFD red tags, delayed occupancy for commercial users, and HOA fines for visible cylinder storage.
See how other cities in Honolulu County handle propane storage.
See how Mililani Mauka's propane storage rules stack up against other locations.
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