5706.4.4.2 Dispensing of Class I liquids.

Containers of Class I liquids shall not be drawn from or filled indoors unless a provision is made to prevent the accumulation of flammable vapors in hazardous concentrations. Where mechanical ventilation is required, it shall be kept in operation while flammable vapors could be present.

5706.4.5 Storage.

Except as otherwise provided in FC 5706.4, storage of flammable and combustible liquids in bulk plants and terminals shall be in compliance with the applicable requirements of FC 5704.

5706.4.5.1 Distance to lot line.

The distance between any part of an aboveground flammable or combustible liquid storage tank and the nearest lot line shall be as provided in FC Table 5706.4.5.1, except where FC 5706.4.5.1.1 through 5706.4.5.1.5 require a greater distance.

FC Table 5706.4.5.1
Distance Between an Aboveground Storage Tank and Lot Lines

Tank Capacity	Minimum Distance (feet)
30,000 gallons	20
Over 30,000 to 50,000 gallons	30
Over 50,000 to 100,000	50
Over 100,000 to 500,000	80
Over 500,000 to 1,000,000	100
Over 1,000,000 to 2,000,000	135
Over 2,000,000 to 3,000,000	165
Over 3,000,000 to 6,000,000	175

5706.4.5.1.1 Vertical cylindrical tanks over 50,000 gallons (189 250 L) storing a flammable liquid.

For vertical cylindrical tanks over 50,000 gallons (189 250 L) storing a flammable liquid, the distance shall not be less than the greater dimension of height or diameter of the tank, up to a maximum distance of 175 feet (53 340 mm).