(a) Flammable liquids shall be stored in accordance with standards of
the National Fire Protection Association. Small quantities of flammable
liquids drawn from storage shall be kept in properly identified safety
(b) Unburied flammable-liquid storage tanks shall be mounted securely
on firm foundations. Outlet piping shall be provided with flexible
connections or other special fittings to prevent adverse effects from tank
(c) Fuel lines shall be equipped with valves to cut off fuel at the
source and shall be located and maintained to minimize fire hazards.
(d) Areas surrounding flammable-liquid storage tanks and electric
substations and transformers shall be kept free from grass (dry), weeds,
underbrush, and other combustible materials such as trash, rubbish, leaves
and paper, for at least 25 feet in all directions.