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Naval Nuclear Propulsion Information NNPI

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

  • NNPI
  • CUI//SP-NNPI
  • Basic and Specified
  • Defense

For a defense contractor

Foxx Cyber's note, not NARA's

A Specified category with its own statute. If you see NNPI you are inside a programme with handling rules beyond 800-171; do not rely on the general guidance here.

NARA's description

CUI Registry · Naval Nuclear Propulsion Information

Related to the safety of reactors and associated naval nuclear propulsion plants, and control of radiation and radioactivity associated with naval nuclear propulsion activities, including prescribing and enforcing standards and regulations for these areas as they affect the environment and the safety and health of workers, operators, and the general public.

Verbatim from the registry entry, which NARA last reviewed on May 7, 2025. Fetched 2026-09-08.

Markings

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

A banner reads CUI for Basic categories and CUI//SP-NNPI 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
42 USC 2013BasicCUI42 USC 2168(b) 42 USC 2168(c)
50 USC 2511SpecifiedCUI//SP-NNPI

Source: https://www.archives.gov/cui/registry/category-detail/naval-nuclear-propulsion-info.