CFR›Title 40›Chapter I›Part 241 ContainsSubparts A–BCorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 PART 241—SOLID WASTES USED AS FUELS OR INGREDIENTS IN COMBUSTION UNITS Subparts A Subpart A—General Sections 241.1–241.2 B Subpart B—Identification of Non-Hazardous Secondary Materials That Are Solid Wastes When Used as Fuels or Ingredients in Combustion Units Sections 241.3–241.4 Authority42 U.S.C. 6903, 6912, 7429.Source76 FR 15549, Mar. 21, 2011, unless otherwise noted. Previous 240 Part 240—Guidelines for the Thermal Processing of Solid Wastes Next 243 Part 243—Guidelines for the Storage and Collection of Residential, Commercial, and Institutional Solid Waste