CFR›Title 32›Subtitle A›Chapter I›Part 223 ContainsSections 223.1–223.7CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 223—DOD UNCLASSIFIED CONTROLLED NUCLEAR INFORMATION (UCNI) Sections 223.1 § 223.1 Purpose. 223.2 § 223.2 Applicability. 223.3 § 223.3 Definitions. 223.4 § 223.4 Policy. 223.5 § 223.5 Responsibilities. 223.6 § 223.6 Procedures-identifying and controlling DoD UCNI. 223.7 § 223.7 Procedures-determination of DoD UCNI. Authority10 U.S.C. 128 and 5 U.S.C. 552(b)(3).Source77 FR 43506, July 25, 2012, unless otherwise noted. Previous 222 Part 222—DoD Mandatory Declassification Review (MDR) Program Next 225 Part 225—Commissary Credit and Debit Card User Fee