42.3 Storage of Liquids
- Approved closed containers that do not exceed 60 gal (227 L) capacity and are located outside buildings
- Tanks or approved closed containers located inside motor fuel dispensing facilities or repair garages
- Aboveground tanks, underground tanks, and containers in accordance with the requirements of 42.3.3
- Tanks supplying marine service stations in accordance with 42.9.2.
- An inspection of the premises and operations has been made and approval has been granted by the AHJ.
- The tank is safeguarded against collision, spillage, and overfill to the satisfaction of the AHJ.
- The tank system is listed or approved for such aboveground use.
- The tank complies with requirements for emergency relief venting, the tank and dispensing system meet the electrical classification requirements of NFPA 30A, and the tank complies with the provisions of 22.214.171.124.
- The tank storage complies with Chapter 22 of NFPA 30.
|Tank Type||Individual Tank Capacity (gal)a||Minimum Distance (ft)|
|From the Nearest Important Building on the Same Property||From Nearest Fuel Dispensing Deviceb||From Lot Line That Is or Can Be Built Uponc||From the Nearest Side of Any Public Way||Between Tanks|
|Tanks in vaultsd||0—15,000||0||0||0||0||Separate compartments required for each tank|
|Protected aboveground tanks||Less than or equal to 6,000||5||0||15||5||3|
|Other tanks meeting the requirements of NFPA 30||0—12,000||50||50||100||50||3|
For SI units, 1 ft = 0.30 m; 1 gal = 3.8 L.
cIncluding the opposite side of a public way.
dThe separation distances given for vaults are measured from the outer perimeter of the vault.
- Any property line that is or can be built upon
- The near and far sides of a public way
- The nearest important building on the same property
- The construction that provides the required fire-resistive protection shall reduce the heat transferred to the primary tank in order to limit the temperature of the primary tank to an average maximum rise of 800°F (430°C) and a single point maximum rise of 1000°F (540°C) and to prevent release of liquid, failure of the primary tank, failure of the supporting structure, and impairment of venting for a period of not less than 2 hours when tested using the fire exposure specified in UL 2080.
- Reduction in sizing of the emergency vents in accordance with 126.96.36.199 of NFPA 30 shall not be permitted.