CFR›Title 28›Chapter I›Part 20›Subpart A ContainsSections 20.1–20.3CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Subpart A—General Provisions Sections 20.1 § 20.1 Purpose. 20.2 § 20.2 Authority. 20.3 § 20.3 Definitions. Source41 FR 11714, Mar. 19, 1976, unless otherwise noted. Next Appendix to Part 20 Appendix to Part 20—Commentary on Selected Sections of the Regulations on Criminal History Record Information Systems