(1) By-product coke oven battery. A process for the destructive distillation of coal and separation of gaseous and liquid distillates from the carbon residue or coke, which includes ovens, charging systems (including larry cars, jumper pipes, charging conveyors from coal storage and or weigh bins), auxiliary gas collection systems, heating systems and flues, pushing systems, door machines, mud trucks, quench cars, quenching systems, desulfurization systems, sulfur recovery units, waste heat stacks and air cleaning devices or control equipment (including oven patching equipment, door hoods, sheds and other hoods either movable or stationary and with or without water sprays).

(2) Charging. The operation that introduces coal into a coke oven, beginning when coal enters the oven and continuing until all charging hole lids are replaced and sealed. Not included is the period when lids are reopened to sweep spilled coal into the oven.

(3) Offtake piping. The pipes or ducts by which the gaseous by-products of coking are transported between the coke oven to a coke oven gas collector main.

(4) Pushing. The operation that removes coke from a coke oven to a transport car, beginning when the ram enters the oven and continuing until the ram begins to retract.

(5) Reasonably available control technology (RACT). Lowest emission limit that a particular source is capable of meeting by application of control technology that is reasonably available, considering technological and economic feasibility.

(6) Transport. The operation which moves coke from the coke oven to the quench tower, beginning when the ram begins to retract from the oven and continuing until the transport car enters the quench tower.