CFR › Title 32 › Part 223Part 223 — DoD Unclassified Controlled Nuclear Information (UCNI)§ 223.1— Purpose.§ 223.2— Applicability.§ 223.3— Definitions.§ 223.4— Policy.§ 223.5— Responsibilities.§ 223.6— Procedures-identifying and controlling DoD UCNI.§ 223.7— Procedures-determination of DoD UCNI.