{"data":{"id":"us/40-cfr-60.191","jurisdiction":"us","citation":"40 CFR 60.191","heading":"Definitions.","body":"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.\nAluminum 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).\nAnode bake plant means a facility which produces carbon anodes for use in a primary aluminum reduction plant.\nPotroom means a building unit which houses a group of electrolytic cells in which aluminum is produced.\nPotroom 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.\nPrimary aluminum reduction plant means any facility manufacturing aluminum by electrolytic reduction.\nPrimary control system means an air pollution control system designed to remove gaseous and particulate flourides from exhaust gases which are captured at the cell.\nRoof monitor means that portion of the roof of a potroom where gases not captured at the cell exit from the potroom.\nTotal fluorides means elemental fluorine and all fluoride compounds as measured by reference methods specified in § 60.195 or by equivalent or alternative methods (see § 60.8(b)).","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 60—STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES","Subpart S—Standards of Performance for Primary Aluminum Reduction Plants"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"a068ec635401f9a7a8f045cd5b3c2de55b635242f6fc9c3fd1d05d085d944a4d","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-60.190","next":"us/40-cfr-60.192"},"notice":"GroundRules: Original legal text. Not legal advice."}