Yankee White is an administrative nickname for a background check undertaken in the United States of America for Department of Defense personnel and contractor employees working with the president and vice president.
Most personnel assigned to Presidential Support duties requiring Yankee White investigations must undergo a Single Scope Background Investigation (SSBI) by the Defense Counterintelligence and Security Agency. DoD Instruction 5210.87 contains detailed information for the implementation of the policy, assignment of responsibilities and prescription of procedures to be followed.