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

Whistleblower Identity WHSTL

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

NARA's description

CUI Registry · Whistleblower Identity

Identity of anyone providing information relating to a legal violation or illicit or unsafe activity, including information provided by a whistleblower which could reasonably be expected to reveal the identity of a whistleblower.

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

Markings

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

A banner reads CUI for Basic categories and CUI//SP-WHSTL 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
7 USC 26(h)(2)BasicCUI
10 CFR 21.2(d)BasicCUI
26 USC 6103(a)SpecifiedCUI//SP-WHSTL
26 USC 6103(h)SpecifiedCUI//SP-WHSTL

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