NIST Special Publication 800-171

NIST Special Publication 800-171
Title	NIST Special Publication 800-171
Author	National Institute of Standards and Technology
Country	United States
Language	English
Subject	Controlled Unclassified Information, information security
Publisher	National Institute of Standards and Technology
Pub date	2015 (initial)
Pages	varies by revision

NIST Special Publication 800-171 NIST Special Publication 800-171 provides security requirements for protecting Controlled Unclassified Information (CUI) in nonfederal systems and organizations. It is intended for use by contractors, subcontractors, and other external partners that handle CUI arising from contracts with agencies such as the Department of Defense, Department of Energy, and Department of Homeland Security. The publication synthesizes technical controls and management objectives to align private-sector information systems with federal expectations for confidentiality without mandating specific products.

Overview

NIST Special Publication 800-171 defines a set of requirements distilled from broader frameworks produced by National Institute of Standards and Technology, reflecting risk management principles found in publications like NIST Special Publication 800-53 and guidance influenced by executive directives such as Executive Order 13526 and statutes including the Federal Information Security Modernization Act of 2014. It addresses confidentiality controls relevant to sectors tied to agencies like the Department of Defense (United States), Department of Energy (United States), and Department of Commerce (United States), and aligns with contracting clauses overseen by the General Services Administration and the Office of Management and Budget. The document aims to bridge federal requirements and private-sector implementation in contexts involving organizations such as Lockheed Martin, Raytheon Technologies, Northrop Grumman, and other defense industrial base participants.

Requirements and Control Families

The publication organizes controls into families derived from the Committee on National Security Systems and NIST catalogs, grouping requirements under headings analogous to those in NIST Special Publication 800-53 families such as access control, incident response, and system and communications protection. Specific families address areas that intersect with practices advocated by entities like ISO/IEC 27001, Center for Internet Security, and regulatory regimes including the Federal Acquisition Regulation. Controls reference operational practices familiar to organizations such as Boeing, General Dynamics, Honeywell International, and SAIC. Implemented requirements touch on identity management used by vendors like Microsoft, Amazon Web Services, and Google Cloud, encryption techniques popularized in standards from Internet Engineering Task Force and compliance mechanisms similar to those adopted under Sarbanes–Oxley Act of 2002 for corporate governance.

Implementation and Compliance

Implementing the publication often involves cross-functional teams combining legal counsel familiar with the Defense Federal Acquisition Regulation Supplement and technical staff versed in architectures from Cisco Systems, Juniper Networks, and Arista Networks. Organizations routinely map 800-171 requirements to controls in governance frameworks used by Deloitte, PricewaterhouseCoopers, and KPMG and integrate processes with supply chain risk practices promoted by National Counterintelligence and Security Center. Contractors to agencies such as United States Air Force, United States Navy, and United States Army embed contractual flow-down clauses and work with prime contractors like BAE Systems to demonstrate adherence. Tools and services from Splunk, Tenable, and CrowdStrike are frequently used to meet technical requirements.

Assessment and Auditing

Assessment methodologies draw from auditing standards such as those from the Government Accountability Office and practices used by Ernst & Young and Grant Thornton. Auditors evaluate control implementation using evidence collection similar to processes in Federal Information Processing Standards testing and may reference baselines influenced by ISO/IEC 27002 and industry efforts like the Cybersecurity Maturity Model Certification program. Assessment outcomes affect contracting decisions by agencies like the Defense Logistics Agency and may trigger corrective action plans coordinated with offices such as the Chief Information Security Officer (CISO) of the contracting agency. Third-party assessors, including firms like Booz Allen Hamilton and Leidos, often perform readiness reviews and attestations.

Relationship to Other Standards and Regulations

The publication interoperates with standards and regulations across the public and private sectors, relating to ISO/IEC 27001, directives from the European Union Agency for Cybersecurity, and federal mandates such as the Clinger-Cohen Act. It complements agency-specific guidance from the Department of Homeland Security (United States), integrates with procurement rules in the Federal Acquisition Regulation, and aligns with classification and handling guidance from the National Archives and Records Administration. Cross-references help organizations reconcile 800-171 requirements with obligations under statutes like the Defense Production Act of 1950 when industrial base resilience and information protection intersect.

Updates and Version History

The original release in 2015 has been followed by revisions and clarifications influenced by stakeholder feedback from contractors, standards bodies, and agencies including Department of Defense (United States), Office of the Director of National Intelligence, and National Archives and Records Administration. Subsequent guidance and transition efforts have involved initiatives by the Cybersecurity and Infrastructure Security Agency and standards coordination with entities like the International Organization for Standardization and the Institute of Electrical and Electronics Engineers. Evolving threat landscapes acknowledged by organizations such as MITRE Corporation and policy changes led by administrations reflected in documents from the White House have driven updates to applicability, assessment approaches, and alignment with newer frameworks like the Cybersecurity Maturity Model Certification.

Category:Computer security standards