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Small Business Primer for SP 800-171A, Revision 3, Assessing Security Requirements for Controlled Unclassified Information (CUI)

NIST has published Special Publication (SP) 1352, Assessing Security Requirements for Controlled Unclassified Information (CUI): NIST SP 800-171Ar3 (Revision 3) Small Business Primer.

Overview  

NIST has published Special Publication (SP) 1352, Assessing Security Requirements for Controlled Unclassified Information (CUI): NIST SP 800-171Ar3 (Revision 3) Small Business PrimerThis guide provides small business owners and operators with a high-level overview of SP 800-171Ar3, Assessing Security Requirements for Controlled Unclassified Information. The goal of the primer is to help the small business community understand foundational SP 800-171 assessment concepts and basic strategies for planning for an assessment.   

Who is this Guide For?  

This primer is for business leaders or employees who are tasked with managing the implementation of SP 800-171r3, including conducting self-assessments or preparing to work with external assessors.

Released September 16, 2026
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