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Search Search CSRC MENU Search Search Projects Publications Expand or Collapse Drafts for Public Comment All Public Drafts Final Pubs FIPS (standards) Special Publications (SP s ) IR (interagency/internal reports) CSWP (cybersecurity white papers) ITL Bulletins Project Descriptions Journal Articles Conference Papers Books Topics Expand or Collapse Security & Privacy Applications Technologies Sectors Laws & Regulations Activities & Products News & Updates Events Glossary About CSRC Expand or Collapse Computer Security Division Cryptographic Technology Software Security Group Hardware Security Group Security Engineering and Risk Management Applied Cybersecurity Division Cybersecurity and Privacy Applications National Cybersecurity Center of Excellence (NCCoE) National Initiative for Cybersecurity Education (NICE) Contact Us Information Technology Laboratory Computer Security Resource Center Publications NIST SP 800-171 Rev. 3 Protecting Controlled Unclassified Information in Nonfederal Systems and Organizations Share to Facebook Share to X Share to LinkedIn Share ia Email Documentation Topics Date Published: May 2024 Supersedes: SP 800-171 Rev. 2 (01/28/2021) Planning Note ( 06/25/2024 ): Now available: an HTML version of SP 800-171r3. Author(s) Ron Ross (NIST) , Victoria Pillitteri (NIST) Abstract The protection of Controlled Unclassified Information (CUI) 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 federal agencies with recommended security requirements for protecting the confidentiality of CUI when the information is resident in nonfederal systems and organizations. The requirements apply to components of nonfederal systems that process, store, 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. This publication can be used in conjunction with its companion publication, NIST Special Publication 800-171A, which provides a comprehensive set of procedures to assess the security requirements. The protection of Controlled Unclassified Information (CUI) 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 federal agencies with recommended security... See full abstract The protection of Controlled Unclassified Information (CUI) 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 federal agencies with recommended security requirements for protecting the confidentiality of CUI when the information is resident in nonfederal systems and organizations. The requirements apply to components of nonfederal systems that process, store, 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. This publication can be used in conjunction with its companion publication, NIST Special Publication 800-171A, which provides a comprehensive set of procedures to assess the security requirements. Hide full abstract Keywords Controlled Unclassified Information ; Executive Order 13556 ; FIPS Publication 199 ; FIPS Publication 200 ; FISMA ; NIST Special Publication 800-53 ; nonfederal organizations ; nonfederal systems ; organization-defined parameter ; security assessment ; security control ; security requirement Control Families Access Control ; Awareness and Training ; Audit and Accountability ; Assessment, Authorization and Monitoring ; Configuration Management ; Identification and Authentication ; Incident Response ; Maintenance ; Media Protection ; Physical and Environmental Protection ; Planning ; Personnel Security ; Risk Assessment ; System and Services Acquisition ; System and Communications Protection ; System and Information Integrity ; Supply Chain Risk Management Documentation Publication: https://doi.org/10.6028/NIST.SP.800-171r3 Download URL HTML Supplemental Material: Change analysis (Rev. 2 to Rev. 3) (xlsx) CUI Overlay (xlsx) FAQ (pdf) 800-171r3 Dataset on CPRT Protecting CUI project NIST news article Publication Parts: SP 800-171A Rev. 3 Related NIST Publications: SP 1318 SP 800-172A Rev. 3 SP 800-172 Rev. 3 Document History: 07/19/22: SP 800-171 Rev. 3 (Draft) 05/10/23: SP 800-171 Rev. 3 (Draft) 11/09/23: SP 800-171 Rev. 3 (Draft) 05/14/24: SP 800-171 Rev. 3 (Final) Topics Security and Privacy audit & accountability , awareness training & education , maintenance , security controls , threats Laws and Regulations Federal Acquisition Regulation , Federal Information Security Modernization Act HEADQUARTERS 100 Bureau Drive Gaithersburg, MD 20899 X (link is external) facebook (link is external) linkedin (link is external) instagram (link is external) youtube (link is external) rss govdelivery (link is external) Want updates about CSRC and our publications? 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