Operations Security OPSEC

NARA's description

CUI Registry · Operations Security

Critical information determined to give evidence of the planning and execution of sensitive (frequently classified) government activities after going through a formal systematic vetting process in accordance with National Security Presidential Memorandum Number 28. This process identifies unclassified information that must be protected. It almost always results from an agency’s official OPSEC program, or is otherwise commonly approved for use by the CUI Senior Agency Official.

Markings

Category marking

OPSEC

Banner marking

CUI

Alternative banner, Basic

CUI//OPSEC

A banner reads CUI for Basic categories and CUI//SP-OPSEC for Specified ones, followed by any limited dissemination control such as NOFORN. How the marking rule works, verbatim from 32 CFR 2002.20.

Authorities

The law, regulation or Government-wide policy that makes this information CUI, and whether it does so as a Basic or a Specified authority.

Source: https://www.archives.gov/cui/registry/category-detail/opsec.