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Abbreviations / Acronyms / Synonyms:

Controlled Unclassified Information

CNSSI 4009-2015

NIST SP 800-12 Rev. 1

NIST SP 800-150

NIST SP 800-160 Vol. 2 Rev. 1

NIST SP 800-160v1r1

NIST SP 800-161r1-upd1

NIST SP 800-171Ar3

NIST SP 800-171r3

NIST SP 800-172

NIST SP 800-172A

NIST SP 800-203

NIST SP 800-37 Rev. 2

NIST SP 800-47 Rev. 1

NIST SP 800-53 Rev. 5

NIST SP 800-53A Rev. 5

Controlled, Unclassified information

NIST SP 800-211

Definitions:

Information that law, regulation, or government-wide policy requires to have safeguarding or disseminating controls, excluding information that is classified under Executive Order 13526, Classified National Security Information, December 29, 2009, or any predecessor or successor order, or the Atomic Energy Act of 1954, as amended.
Sources:
NIST SP 800-150 under Controlled Unclassified Information

Glossary Comments

Comments about specific definitions should be sent to the authors of the linked Source publication. For NIST publications, an email is usually found within the document.

Comments about the glossary's presentation and functionality should be sent to secglossary@nist.gov.

See NISTIR 7298 Rev. 3 for additional details.