{"data":{"id":"us/40-cfr-table-f-1-to-subpart-f-of-part-98","jurisdiction":"us","citation":"40 CFR Table F-1 to Subpart F of Part 98","heading":"Table F-1 to Subpart F of Part 98—Slope and Overvoltage Coefficients for the Calculation of PFC Emissions From Aluminum Production","body":"Technology CF4 slope coefficient [(kg CF4/metric ton Al)/(AE-Mins/cell-day)] CF4 overvoltage coefficient [(kg CF4/metric ton Al)/(mV)] Weight fraction C2 F6/CF4 [(kg C2 F6/kg CF4)]\nCenter Worked Prebake (CWPB) 0.143 1.16 0.121\nSide Worked Prebake (SWPB) 0.272 3.65 0.252\nVertical Stud Søderberg (VSS) 0.092 NA 0.053\nHorizontal Stud Søderberg (HSS) 0.099 NA 0.085","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 98—MANDATORY GREENHOUSE GAS REPORTING","Subpart F—Aluminum Production"],"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":"b48e53cc31dde93a2be598e6c60f3fff22e6700555eb01f807682eb540c6720f","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-98.68","next":"us/40-cfr-table-f-2-to-subpart-f-of-part-98"},"notice":"GroundRules: Original legal text. Not legal advice."}