CFR›Title 5›Chapter I›Part 5 ContainsSections 5.1–5.4CorpusDaily eCFRDisplayed edition2026-10-22Last updated2026-10-22 PART 5—REGULATIONS, INVESTIGATION, AND ENFORCEMENT (RULE V) Sections 5.1 § 5.1 Civil Service regulations. 5.2 § 5.2 Investigation and evaluations. 5.3 § 5.3 Enforcement. 5.4 § 5.4 Information and testimony. Authority5 U.S.C. 3301, 3302; E.O. 12107, 44 FR 1055, 3 CFR, 1978 Comp., p. 264; E.O. 14410, 91 FR 34893.Source45 FR 4337, Jan. 22, 1980, unless otherwise noted. Previous 4 Part 4—Prohibited Practices (Rule IV) Next 6 Part 6—Exceptions from the Competitive Service (Rule VI)