Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Protecting Controlled Unclassified Information in Nonfederal Information Systems and Organizations [including updates as of 09-03-2015]

Published

Author(s)

Ronald S. Ross, Kelley L. Dempsey, Patrick Viscuso, Mark Riddle, Gary Guissanie

Abstract

[Supersedes SP 800-171 (June 2015, updated 1/14/2016): http://www.nist.gov/manuscript-publication-search.cfm?pub_id=920191] The protection of Controlled Unclassified Information (CUI) while residing in nonfederal information systems and organizations is of paramount importance to federal agencies and can directly impact the ability of the federal government to successfully carry out its designated missions and business operations. This publication provides federal agencies with recommended requirements for protecting the confidentiality of CUI: (i) when the CUI is resident in nonfederal information systems and organizations; (ii) when the information systems where the CUI resides are not used or operated by contractors of federal agencies or other organizations on behalf of those agencies; and (iii) 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 or subcategory listed in the CUI Registry. The requirements apply to all components of nonfederal information systems and organizations that process, store, or transmit CUI, or provide security protection for such components. The CUI requirements are intended for use by federal agencies in contractual vehicles or other agreements established between those agencies and nonfederal organizations. [Supersedes SP 800-171 (June 2015): http://www.nist.gov/manuscript-publication-search.cfm?pub_id=918804]
Citation
Special Publication (NIST SP) - 800-171
Report Number
800-171

Keywords

contractor information systems, controlled unclassified information, CUI registry, derived security requirement, Executive Order 13556, FISMA, nonfederal information systems, security control, security requirement

Citation

Ross, R. , Dempsey, K. , Viscuso, P. , Riddle, M. and Guissanie, G. (2015), Protecting Controlled Unclassified Information in Nonfederal Information Systems and Organizations [including updates as of 09-03-2015], Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD (Accessed March 28, 2024)
Created October 1, 2015, Updated February 19, 2017