// CODE SNIPPET
2306.2.3 Above-Ground Tanks Located Outside, Above Grade
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Above-ground tanks shall not be used for the storage of Class I, II or III liquid motor fuels, except as provided by this section.
For SI: 1 foot = 304.8 mm, 1 gallon = 3.785 L.
- Above-ground tanks used for outside, above-grade storage of Class I liquids shall be listed and labeled as protected above-ground tanks in accordance with UL 2085 and shall be in accordance with Chapter 57. Such tanks shall be located in accordance with Table 2306.2.3.
- Above-ground tanks used for outside, above-grade storage of Class II or IIIA liquids shall be listed and labeled as protected above-ground tanks in accordance with UL 2085 and shall be installed in accordance with Chapter 57. Tank locations shall be in accordance with Table 2306.2.3.
Exception: Other above-ground tanks that comply with Chapter 57 where approved by the fire code official.
- Tanks containing fuels shall not exceed 12,000 gallons (45 420 L) in individual capacity or 48,000 gallons (181 680 L) in aggregate capacity. Installations with the maximum allowable aggregate capacity shall be separated from other such installations by not less than 100 feet (30 480 mm).
- Tanks located at farms, construction projects, or rural areas shall comply with Section 5706.2.
- Above-ground tanks used for outside above-grade storage of Class IIIB liquid motor fuel shall be listed and labeled in accordance with UL 142 or listed and labeled as protected above-ground tanks in accordance with UL 2085 and shall be installed in accordance with Chapter 57. Tank locations shall be in accordance with Table 2306.2.3.
| CLASS OF LIQUID AND TANK TYPE | INDIVIDUAL TANK CAPACITY (gallons) |
MINIMUM DISTANCE FROM NEAREST IMPORTANT BUILDING ON SAME PROPERTY (feet) |
MINIMUM DISTANCE FROM NEAREST FUEL DISPENSER (feet) |
MINIMUM DISTANCE FROM LOT LINE THAT IS OR CAN BE BUILT UPON, INCLUDING THE OPPOSITE SIDE OF A PUBLIC WAY (feet) |
MINIMUM DISTANCE FROM NEAREST SIDE OF ANY PUBLIC WAY (feet) |
MINIMUM DISTANCE BETWEEN TANKS (feet) |
| Class I protected above-ground tanks | Less than or equal to 6,000 | 5 | 25a | 15 | 5 | 3 |
| Greater than 6,000 | 15 | 25a | 25 | 15 | 3 | |
| Class II and III protected above-ground tanks | Same as Class I | Same as Class I | Same as Class Ic | Same as Class I | Same as Class I | Same as Class I |
| Tanks in vaults | 0—20,000 | 0b | 0 | 0b | 0 | Separate compartment required for each tank |
| Other tanks | All | 50 | 50 | 100 | 50 | 3 |
For SI: 1 foot = 304.8 mm, 1 gallon = 3.785 L.
- At fleet vehicle motor fuel-dispensing facilities, a minimum separation distance is not required.
- Underground vaults shall be located such that they will not be subject to loading from nearby structures, or they shall be designed to accommodate applied loads from existing or future structures that can be built nearby.
- For Class IIIB liquids in protected above-ground tanks, a minimum separation distance is not required.
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