Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Protecting Controlled Unclassified Information in Nonfederal Systems and Organizations

Published

Author(s)

Ronald S. Ross, Victoria Y. Pillitteri, Kelley L. Dempsey, Mark Riddle, Gary Guissanie

Abstract

The protection of Controlled Unclassified Information (CUI) resident in nonfederal systems and organizations is of paramount importance to federal agencies and can directly impact the ability of the federal government to successfully conduct its essential missions and functions. This publication provides agencies with recommended security requirements for protecting the confidentiality of CUI when the information is resident in nonfederal systems and organizations; when the nonfederal organization is not collecting or maintaining information on behalf of a federal agency or using or operating a system on behalf of an agency; and where there are no specific safeguarding requirements for protecting the confidentiality of CUI prescribed by the authorizing law, regulation, or governmentwide policy for the CUI category listed in the CUI Registry. The requirements apply to all components of nonfederal systems and organizations that process, store, and/or transmit CUI, or that provide protection for such components. The security requirements are intended for use by federal agencies in contractual vehicles or other agreements established between those agencies and nonfederal organizations. [Supersedes SP 800-171r1 (June 2018): https://csrc.nist.gov/publications/detail/sp/800-171/rev- 1/final]
Citation
Special Publication (NIST SP) - 800-171 Rev. 2
Report Number
800-171 Rev. 2

Keywords

Basic Security Requirement, Contractor Systems, Controlled Unclassified Information, CUI Registry, Derived Security Requirement, Executive Order 13556, FIPS Publication 199, FIPS Publication 200, FISMA, NIST Special Publication 800-53, Nonfederal Organizations, Nonfederal Systems, Security Assessment, Security Control, Security Requirement.
Created February 21, 2020, Updated April 7, 2020