CFR›Title 40›Chapter VI›Part 1610 ContainsSections 1610.1–1610.4CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 1610—ADMINISTRATIVE INVESTIGATIONS Sections 1610.1 § 1610.1 Representation of witnesses in investigations. 1610.2 § 1610.2 Repeated attorney misconduct, sanctions, hearings. 1610.3 § 1610.3 Sequestration of witnesses and exclusion of Counsel. 1610.4 § 1610.4 Deposition Transcripts. Authority42 U.S.C. 7412(r)(6)(C)(i), 7412(r)(6)(L), 7412(r)(6)(N). Section 1610.4 also issued under 5 U.S.C. 555.Source66 FR 1050, Jan. 5, 2001, unless otherwise noted. Previous 1604 Part 1604—Reporting of Accidental Releases Next 1611 Part 1611—Testimony by Employees in Legal Proceedings