CFR›Title 40›Chapter I›Part 62›Subpart Z›Subject Group Fluoride Emissions From Primary Aluminum Reduction Plants ContainsSection 62.6121CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Sections 62.6121 § 62.6121 Identification of sources—negative declaration. Previous Fluoride Emissions From Phosphate Fertilizer Plants Fluoride Emissions From Phosphate Fertilizer Plants Next Municipal Waste Combustors Municipal Waste Combustors