---
kind: "section"
citation: "32 C.F.R. § 2400.16"
title: "32"
number: "2400.16"
heading: "Derivative classification markings."
url: "https://uscodex.org/cfr/32/2400.16"
---

# §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](/cfr/32/2400.12.md) 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](/cfr/32/2400.12.md) 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.

## Notes

### Authority

Authority: E.O. 12356 and Information Security Oversight Office Directive No. 1.

### Source

Source: 48 FR 10821, Mar. 15, 1983, unless otherwise noted.