Archived NIST Technical Series Publication

1 Archived NIST Technical Series Publication The attached Publication has been Archived (withdrawn), and is provided solely for historical purposes. It may have been superseded by another Publication (indicated below). Archived Publication Series /Number: Title: Publication Date(s): Withdrawal Date: Withdrawal Note: Superseding Publication (s) The attached Publication has been superseded by the following Publication (s): Series /Number: Title: Author(s): Publication Date(s): URL/DOI: Additional Information (if applicable) Contact: Latest revision of the attached Publication : Related information: Withdrawal announcement (link): Date updated.

2 NIST Special Publication 800-171 Protecting unclassified Information in Nonfederal InformationSystems and OrganizationsJune 2015 (updated 1-14-2016)December 20, 2017 NIST SP 800-171 is officially withdrawn 1 year after the originalpublication of NIST SP 800-171 Revision SP 800-171 Revision 1 Protecting Controlled unclassified Information in Nonfederal Systemsand OrganizationsRon Ross; Patrick Viscuso; Gary Guissanie; Kelley Dempsey; MarkRiddleDecember 2016 Security Division (Information Technology Laboratory)SP 800-171 Rev. 1 (December 2016, updated 11-28-2017) NIST Special Publication 800-171 Protecting Controlled unclassified Information in Nonfederal Information Systems and Organizations

3 RON ROSS PATRICK VISCUSO GARY GUISSANIE KELLEY DEMPSEY MARK RIDDLE This Publication is available free of charge from: NIST Special Publication 800-171 Protecting Controlled unclassified Information in Nonfederal Information Systems and Organizations RON ROSS KELLEY DEMPSEY Computer Security Division Information Technology Laboratory National Institute of Standards and Technology PATRICK VISCUSO MARK RIDDLE Information Security Oversight Office National Archives and Records Administration GARY GUISSANIE Institute for Defense Analyses Supporting the Office of the CIO Department of Defense This Publication is available free of charge from.

4 June 2015 INCLUDES UPDATES AS OF 01-14-2016 Department of Commerce Penny Pritzker, Secretary National Institute of Standards and Technology Willie May, Under Secretary of Commerce for Standards and Technology and DirectorSpecial Publication 800-171 Protecting Controlled unclassified Information in Nonfederal Information Systems and Organizations _____ PAGE ii Authority This Publication has been developed by NIST to further its statutory responsibilities under the Federal Information Security Modernization Act (FISMA) of 2014, 44 3541 et seq., Public Law ( ) 113-283. NIST is responsible for developing information security standards and guidelines, including minimum requirements for federal information systems, but such standards and guidelines shall not apply to national security systems without the express approval of appropriate federal officials exercising policy authority over such systems.

5 This guideline is consistent with the requirements of the Office of Management and Budget (OMB) Circular A-130, Section 8b(3), Securing Agency Information Systems, as analyzed in Circular A-130, Appendix IV: Analysis of Key Sections. Supplemental information is provided in Circular A-130, Appendix III, Security of Federal Automated Information Resources. Nothing in this Publication should be taken to contradict the standards and guidelines made mandatory and binding on federal agencies by the Secretary of Commerce under statutory authority. Nor should these guidelines be interpreted as altering or superseding the existing authorities of the Secretary of Commerce, Director of the OMB, or any other federal official.

6 This Publication may be used by nongovernmental organizations on a voluntary basis and is not subject to copyright in the United States. Attribution would, however, be appreciated by NIST. National Institute of Standards and Technology Special Publication 800-171 76 pages (June 2015) CODEN: NSPUE2 This Publication is available free of charge from: Comments on this Publication may be submitted to: National Institute of Standards and Technology Attn: Computer Security Division, Information Technology Laboratory 100 Bureau Drive (Mail Stop 8930) Gaithersburg, MD 20899-8930 Electronic Mail: Certain commercial entities, equipment, or materials may be identified in this document in order to describe an experimental procedure or concept adequately.

7 Such identification is not intended to imply recommendation or endorsement by NIST, nor is it intended to imply that the entities, materials, or equipment are necessarily the best available for the purpose. There may be references in this Publication to other publications currently under development by NIST in accordance with its assigned statutory responsibilities. The information in this Publication , including concepts, practices, and methodologies, may be used by federal agencies even before the completion of such companion publications. Thus, until each Publication is completed, current requirements, guidelines, and procedures, where they exist, remain operative.

8 For planning and transition purposes, federal agencies may wish to closely follow the development of these new publications by NIST. Organizations are encouraged to review draft publications during the designated public comment periods and provide feedback to NIST. Computer Security Division publications are available at Special Publication 800-171 Protecting Controlled unclassified Information in Nonfederal Information Systems and Organizations _____ PAGE iii Reports on Computer Systems Technology The Information Technology Laboratory (ITL) at the National Institute of Standards and Technology (NIST) promotes the economy and public welfare by providing Technical leadership for the Nation s measurement and standards infrastructure.

9 ITL develops tests, test methods, reference data, proof of concept implementations, and Technical analyses to advance the development and productive use of information technology (IT). ITL s responsibilities include the development of management, administrative, Technical , and physical standards and guidelines for the cost-effective security and privacy of other than national security-related information in federal information systems. The Special Publication 800- Series reports on ITL s research, guidelines, and outreach efforts in information systems security and its collaborative activities with industry, government, and academic organizations.

10 Abstract 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.