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Superseded by SP 800-172 Rev. 3 Enhanced Security Requirements for Protecting Controlled Unclassified Information: A Supplement to NIST Special Publication 800-171 Share to Facebook Share to X Share to LinkedIn Share ia Email Documentation Topics Date Published: February 2021 Planning Note ( 04/13/2022 ): The enhanced security requirements in SP 800-172 are available in multiple data formats. The PDF of SP 800-172 is the authoritative source of the enhanced security requirements. If there are any discrepancies noted in the content between the CSV , XLSX and the SP 800-172 PDF , please contact [email protected] and refer to the PDF as the normative source. Author(s) Ron Ross (NIST) , Victoria Pillitteri (NIST) , Gary Guissanie (IDA) , Ryan Wagner (IDA) , Richard Graubart (MITRE) , Deborah Bodeau (MITRE) 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 federal agencies with recommended enhanced security requirements for protecting the confidentiality of CUI: (1) when the information is resident in nonfederal systems and organizations; (2) 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 (3) where there are no specific safeguarding requirements for protecting the confidentiality of CUI prescribed by the authorizing law, regulation, or government-wide policy for the CUI category listed in the CUI Registry. The enhanced requirements apply only to components of nonfederal systems that process, store, or transmit CUI or that provide security protection for such components when the designated CUI is associated with a critical program or high value asset. The enhanced requirements supplement the basic and derived security requirements in NIST Special Publication 800-171 and are intended for use by federal agencies in contractual vehicles or other agreements established between those agencies and nonfederal organizations. 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... See full 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 federal agencies with recommended enhanced security requirements for protecting the confidentiality of CUI: (1) when the information is resident in nonfederal systems and organizations; (2) 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 (3) where there are no specific safeguarding requirements for protecting the confidentiality of CUI prescribed by the authorizing law, regulation, or government-wide policy for the CUI category listed in the CUI Registry. The enhanced requirements apply only to components of nonfederal systems that process, store, or transmit CUI or that provide security protection for such components when the designated CUI is associated with a critical program or high value asset. The enhanced requirements supplement the basic and derived security requirements in NIST Special Publication 800-171 and are intended for use by federal agencies in contractual vehicles or other agreements established between those agencies and nonfederal organizations. Hide full abstract Keywords Advanced Persistent Threat ; Basic Security Requirement ; Contractor Systems ; Controlled Unclassified Information ; CUI Registry ; Derived Security Requirement ; Enhanced 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 Control Families None selected Documentation Publication: https://doi.org/10.6028/NIST.SP.800-172 Download URL Supplemental Material: Enhanced Security Requirements Spreadsheet (xlsx) Enhanced Security Requirements CSV README for CSV (txt) NIST news article Publication Parts: SP 800-172A Related NIST Publications: SP 800-171 Rev. 2 Document History: 06/19/19: SP 800-171B (Draft) 07/06/20: SP 800-172 (Draft) 02/02/21: SP 800-172 (Final) Topics Security and Privacy advanced persistent threats , continuous monitoring , planning , risk assessment Laws and Regulations Federal Information Security Modernization Act , OMB Circular A-130 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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