• General secondary containment requirements are intended to contain or hold the most likely oil discharges from an area or container.

The general secondary containment requirements are intended to address, in accordance with good engineering practice, the most likely oil discharges from areas or containers such as mobile refuelers and other non-transportation-related tank trucks; oil-filled operational or process equipment; (non-rack) transfer areas; or piping. The containment method, design, and capacity are determined by good engineering practice to contain or hold the most likely discharge of oil until cleanup occurs. The general secondary containment provision is found at Part 112.7(c).