to move, Enter to open, Esc to close. Try 3.5.3, AC.L2-3.1.1, MFA or unmarked.

Informant INF

A CUI category in the Law Enforcement grouping of NARA's registry, CUI Basic or CUI Specified depending on the authority, marked CUI//SP-INF.

NARA's description

CUI Registry · Informant

Related to the identity of a human source.

Verbatim from the registry entry, which NARA last reviewed on July 29, 2025. Fetched 2026-09-08.

Markings

Category marking
INF
Banner, Specified authorities
CUI//SP-INF
Banner, Basic authorities
CUI
Alternative banner, Basic
CUI//INF

A banner reads CUI for Basic categories and CUI//SP-INF 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.

Safeguarding or dissemination authorityBasic or SpecifiedBannerSanctions
5 CFR 736.103BasicCUI
21 CFR 20.64(a)(4)BasicCUI
10 CFR 19.16(a)BasicCUI
26 USC 6103(a)SpecifiedCUI//SP-INF
26 USC 6103(h)SpecifiedCUI//SP-INF

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