32 CFR § 2400.16 - Derivative classification markings.

---
identifier: "/us/cfr/t32/s2400.16"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "32 CFR § 2400.16 - Derivative classification markings."
title_number: 32
title_name: "National Defense"
section_number: "2400.16"
section_name: "Derivative classification markings."
chapter_name: "OFFICE OF SCIENCE AND TECHNOLOGY POLICY"
part_number: "2400"
part_name: "REGULATIONS TO IMPLEMENT E.O. 12356; OFFICE OF SCIENCE AND TECHNOLOGY POLICY INFORMATION SECURITY PROGRAM"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "E.O. 12356 and Information Security Oversight Office Directive No. 1."
regulatory_source: "48 FR 10821, Mar. 15, 1983, unless otherwise noted."
cfr_part: "2400"
---


# 2400.16 Derivative classification markings.

(a) Documents classified derivatively on the basis of source documents or classification guides shall bear all markings prescribed in § 2400.12 of this part and Directive No. 1 as are applicable. Information for these markings shall be taken from the source document or instructions in the appropriate classification guide. When markings are omitted because they may reveal a confidential source or relationship not otherwise evident, as described in § 2400.12 of this part, the information may not be used as a basis for derivative classification.

(b) The authority for classification shall be shown as directed in Directive No. 1.