Islip, NY Fire Regulations: Propane Storage (2026)
Key Facts
- Minimum setback
- 25 feet from any building
- Permit trigger
- Resale, rental storage or vessel transfer sites
- Large-tank threshold
- Over 100 gallons needs written approval
- Permit term
- One year, Chief Fire Marshal
- Enforcing agency
- Town of Islip Division of Fire Prevention
- Indoor cylinder cap
- 200 lbs total, 2.5-lb cylinders only
Summary
The Town of Islip requires a Chief Fire Marshal permit for any location that sells, stores for rental or resale, or transfers propane between vessels, and requires stored LP-gas containers to sit at least 25 feet from any building inside a vented, noncombustible or fenced enclosure. Fixed installations over 100 gallons need approved plans first.
Storage of containers must be outside the building, at least 25 feet from any building. Storage is to be in either a noncombustible top and bottom vented structure or surrounded by a substantial metal fence enclosure, such enclosure to be adequately secured against access by unauthorized persons.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4826765; v112 updated 2026-02-24; through 02-24-2026).
Full Breakdown
Chapter 19, Article XVII of the Code of the Town of Islip governs liquefied petroleum gas use townwide, including the hamlets of Bay Shore, Central Islip, Sayville and the rest of unincorporated Islip (the incorporated villages of Brightwaters, Islandia, Ocean Beach and Saltaire have their own codes). Under § 19-103E(3), "Storage of containers must be outside the building, at least 25 feet from any building. " Small quantities are treated differently: § 19-103F allows DOT cylinders of up to 2 1/2 pounds' water capacity, holding no more than 200 pounds of LP-gas total, to be stored or displayed inside a building open to the public, and § 19-103E(1) otherwise bars any container from being kept inside, on the roof or on a balcony of an occupied building.
Anyone operating a fixed installation, resale point or vessel-to-vessel transfer location must first obtain a permit from the Chief Fire Marshal under § 19-105A, and § 19-101A(2) requires written permission before installing any tank or container over 100 gallons' water capacity, with plans filed in duplicate showing container locations, capacities and property lines. Permits run one year under § 19-105E and must be posted or made available on-site under § 19-105D. All equipment must conform to the Chief Fire Marshal's rules and the Fire Code of New York State under § 19-102A.
Violations & Fines
Operating a fixed LP-gas installation or storage site without the required Chief Fire Marshal permit, or storing containers closer than 25 feet to a building without an approved vented or fenced enclosure, is enforced by the Division of Fire Prevention under Chapter 19. The Chief Fire Marshal can deny, revoke or refuse to renew a permit for noncompliance, and improperly painted, refilled or relocated cylinders can be seized on inspection.
Frequently Asked Questions
How far must a propane tank be from my house in Islip?
Do I need a permit to install a propane tank in Islip?
Can I keep a small propane cylinder inside a building in Islip?
Sources & Official References
Other rules in Islip
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Propane Storage in Nearby Cities
How other cities in Suffolk County handle propane storage.