scope:

PURPOSE.

This Commandant Instruction (CI) establishes Coast Guard policy and responsibilities for the acquisition, maintenance, operation, and disposal of petroleum, oil, and lubricant (POL) storage systems. POL storage systems include underground storage tanks (USTs), aboveground storage tanks (ASTs), and mobile fuel storage containers greater than 55 gallons in capacity, as well as associated piping, venting, monitoring, dispensing, and ancillary equipment. This Instruction does not address storage of hazardous waste, bilge water, non-petroleum sludge, potable water, wastewaters, stormwater, non-petroleum chemicals, fuel tanks part of an automotive engine system, or petroleum storage on vessels.