CFR›Title 40›Chapter I›Part 721›Subpart E›40 CFR 721.12184-721.12218 Citation40 CFR 721.12184-721.12218CorpusDaily eCFRDisplayed edition2026-06-08Last updated2026-06-08 §§ 721.12184-721.12218 xxxLink to an amendment published at 91 FR 31966, May 29, 2026. Previous 721.12121-721.12146 §§ 721.12121-721.12146 xxx