Government Contractor’s Ultimate Guide to CUI

This report is a comprehensive guidance piece for U.S. federal government contractors about Controlled Unclassified Information (CUI): what qualifies as CUI, when contractors have obligations (contract clauses/agreements), marking and handling requirements, relationships to frameworks like NIST SP 800-171/800-53, CMMC, and FedRAMP, cloud provider considerations, subcontractor responsibilities, and practical steps for implementing a CUI compliance program.