The Controlled Unclassified Information (CUI) Program, established by Executive Order 13556, standardizes the handling and marking of unclassified information that requires safeguarding or dissemination controls across federal agencies and their contractors. The National Archives and Records Administration (NARA) serves as the Executive Agent responsible for implementing the CUI Program.

In the context of the Cybersecurity Maturity Model Certification (CMMC) 2.0, particularly at Level 2, organizations are required to protect CUI by adhering to the security requirements outlined in NIST Special Publication 800-171. This includes proper marking of CUI to ensure that all personnel recognize and handle such information appropriately.

The NARA CUI Introduction to Marking provides comprehensive guidance on the correct procedures for marking documents and communications containing CUI. This resource is essential for training purposes, as it offers detailed instructions and examples to help personnel understand and implement proper CUI markings. By referring the sales team to the NARA CUI Introduction to Marking, the director of sales ensures that the team receives authoritative and standardized training on how to appropriately mark emails and other documents containing CUI, thereby maintaining compliance with federal regulations and CMMC requirements.