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As used in this subpart, all terms not defined herein shall have the meaning given them in the Act and in subpart A of this part.
Aluminum equivalent means an amount of aluminum which can be produced from a Mg of anodes produced by an anode bake plant as determined by §60.195(g).
Anode bake plant means a facility which produces carbon anodes for use in a primary aluminum reduction plant.
Potroom means a building unit which houses a group of electrolytic cells in which aluminum is produced.
Potroom group means an uncontrolled potroom, a potroom which is controlled individually, or a group of potrooms or potroom segments ducted to a common control system.
Primary aluminum reduction plant means any facility manufacturing aluminum by electrolytic reduction.
Primary control system means an air pollution control system designed to remove gaseous and particulate flourides from exhaust gases which are captured at the cell.
Roof monitor means that portion of the roof of a potroom where gases not captured at the cell exit from the potroom.