Controlled Unclassified Information (CUI) is a category of unclassified information within the U.S. federal government. The CUI program was created by President Barack Obama’s Executive Order 13556 to create a streamlined method for information sharing and safeguarding. The Information Security Oversight Office (ISOO) acts as the Executive Agent (EA) of the National Archives and Records Administration (NARA), and is responsible for oversight of the CUI program. The ISOO monitors the implementation of the CUI program by executive branch agencies. CUI will replace agency specific labels such as For Official Use Only (FOUO), Sensitive But Unclassified (SBU), and Law Enforcement Sensitive (LES) on new data and some data with legacy labels will also qualify as Controlled Unclassified Information. Federal contractors who handle CUI will be required to self-assess with the Cybersecurity Maturity Model Certification (CMMC) under the Cyber AB.