CFR›Title 40›Chapter I›Part 60›40 CFR Part 60 Subpart S Citation40 CFR Part 60 Subpart SContainsSections 60.190–60.195CorpusDaily eCFRDisplayed edition2026-06-29Last updated2026-06-29 Subpart S—Standards of Performance for Primary Aluminum Reduction Plants Sections 60.190 § 60.190 Applicability and designation of affected facility. 60.191 § 60.191 Definitions. 60.192 § 60.192 Standard for fluorides. 60.193 § 60.193 Standard for visible emissions. 60.194 § 60.194 Monitoring of operations. 60.195 § 60.195 Test methods and procedures. Authority42 U.S.C. 7401 et seq.Source45 FR 44207, June 30, 1980, unless otherwise noted. Previous RRRa Subpart RRRa—Standards of Performance for Volatile Organic Compound Emissions From Synthetic Organic Chemical Manufacturing Industry (SOCMI) Reactor Processes for Which Construction, Reconstruction, or Modification Commenced After April 25, 2023 Next SS Subpart SS—Standards of Performance for Industrial Surface Coating: Large Appliances