CFR›Title 40›Chapter I›Part 461›Subject Group General Provisions ContainsSections 461.1–461.4CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Sections 461.1 § 461.1 Applicability. 461.2 § 461.2 General definitions. 461.3 § 461.3 Monitoring and reporting requirements. 461.4 § 461.4 Compliance date for PSES. Previous G Subpart G—Zinc Subcategory