Draft NIST Special Publication 800 -172A Assessing Enhanced Security Requirements for Controlled Unclassified Information RON ROSS VICTORIA PILLITTERI KELLEY DEMPSEY This publication is available free of charge from: https://doi.org/10.6028/NIST.SP.800- 172A -draft Draft NIST Special Publication 800 -172A Assessing Enhanced Security Requirements for Controlled Unclassified Information RON ROSS VICTORIA PILLITTERI KELLEY DEMPSEY Computer Security Division Information Technology Laboratory This publication is available free of charge from: https://doi.org/10.6028/NIST.SP.800- 172A -draft April 2021 U.S. Department of Commerce Gina M. Raimondo, Secretary National Institute of Standards and Technology James K. Olthoff, Performing the Non -Exclusive Functions and Duties of the Under Secretary of Commerce for Standards and Technology & Director, National Institute of Standards and Technology NIST SP 800- 172A (DRAFT) ASSESSING ENHANCED SECURITY REQUIREMENTS FOR CUI _________________________________________________________________________________________________ i Authority 1 This publication has been developed by NIST to further its statutory responsibilities under the 2 Federal Information Security Modernization Act (FISMA), 44 U.S.C. § 3551 et seq. , Public Law 3 (P.L.) 113 -283. NIST is responsible for developing information security standards and guidelines, 4 including minimum requirements for federal information systems, but such standards and 5 guidelines shall not apply to national security systems wi thout the express approval of the 6 appropriate federal officials exercising policy authority over such systems. This guideline is 7 consistent with requirements of the Office of Management and Budget (OMB) Circular A -130. 8 Nothing in this publication should be taken to contradict the standards and guidelines made 9 mandatory and binding on federal agencies by the Secretary of Commerce under statutory 10 authority. Nor should these guidelines be interpreted as altering or superseding the existing 11 authorities of the S ecretary of Commerce, OMB Director, or any other federal official. This 12 publication may be used by nongovernmental organizations on a voluntary basis and is not 13 subject to copyright in the United States. Attribution would, however, be appreciated by NIST. 14 National Institute of Standards and Techn ology Special Publication 800 -172A 15 Natl. Inst. Stand. Technol. Spec. Publ. 800 -172A , 62 pages (April 2021 ) 16 CODEN: NSPUE2 17 This publication is available free of charge from: 18 https://doi.org/10.6028/NIST.SP.800- 172A -draft 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Public comment period: April 27, 2021 through June 11, 2021 34 National Institute of Standards and Technology 35 Attn: Computer Security Division, Information Technology Laboratory 36 100 Bureau Drive (Mail Stop 8930) Gaithersburg, MD 20899 -8930 37 Email: [email protected] 38 All comments are subject to release under the Freedom of Information Act (FOIA) [FOIA96 ]. 39 Certain commercial entities, equipment, or materials may be identified in this document to describe an experimental procedure or concept adequately. 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, curren