Honolulu County, HI Fire Regulations: Propane Storage (2026)

1 for Honolulu. The permit trigger is broad: a permit is required to install or dispense LP-Gas or to maintain an LP-Gas container, so simply keeping an existing tank in service falls under the rule, not just new installations. The one exception covers a portable container, or an aggregate of interconnected containers, of less than 125-gallon water capacity; the typical small home tank clears that bar, while anything at or above it needs the permit. For containers at or above the threshold, the AHJ reviews plot and cross-sectional plans, and installations within city jurisdiction also need Department of Permitting and Planning approval before HFD issues the permit, so a larger tank passes through two agencies before it is legal.

The permit is tied tightly to the specific setup: permits are not transferable, and any change in use, occupancy, operation, ownership, vendor, or capacity requires a new permit. Buying a property with a permitted tank therefore does not inherit the permit; the ownership change itself triggers a new one. The code also drafts the propane suppliers into enforcement: a distributor may not fill an LP-Gas container that requires a permit unless an installation permit has been issued for that location by the AHJ, which means an unpermitted large tank cannot lawfully be refilled at all.