CFR›Title 40›Chapter I›Part 62›Subpart T›Subject Group Landfill Gas Emissions From Existing Municipal Solid Waste Landfills ContainsSections 62.4631–62.4632CorpusDaily eCFRDisplayed edition2026-06-08Last updated2026-06-08 Sections 62.4631 § 62.4631 Identification of Sources. 62.4632 § 62.4632 Effective Date. Previous Fluoride Emissions From Existing Primary Aluminum Plants Fluoride Emissions From Existing Primary Aluminum Plants Next Mercury Emissions from Coal-Fired Electric Steam Generating Units Mercury Emissions from Coal-Fired Electric Steam Generating Units