US lawFederal (United States)RegulationsTitle 40 CFR — Protection of EnvironmentChapter I — ENVIRONMENTAL PROTECTION AGENCYPart 436 — MINERAL MINING AND PROCESSING POINT SOURCE CATEGORYSubpart V — Bentonite Subcategory436.22040 C.F.R. § 436.220Applicability; description of the bentonite subcategory.Last amended: 2016Year: 2026Length: 12 wordsOfficial source Cite as 40 C.F.R. § 436.220 (2026)The provisions of this subpart are applicable to the processing of bentonite.Next40 C.F.R. § 436.221