"The Global Enrollment System (GES) is an information technology (IT) system that consolidates the enrollment and vetting processes for individuals who voluntarily exchange personally identifiable information in return for expedited transit at U.S. border entry points. U.S. Customs and Border Protection (CBP), a bureau within the Department of Homeland Security (DHS), currently operates different 'trusted traveler' programs at designated border ports of entry to expedite the processing of pre-approved, international, low-risk travelers effectively and efficiently through the border. Several of the identified 'trusted traveler' programs predate the creation of DHS and CBP and were designed and implemented by predecessor agencies such as the Immigration and Naturalization Service (INS) and the U.S. Customs Service. As a result, the biographical and biometric data currently collected from applicants and participants in the programs are stored through the use of localized application/enrollment processes and several stand-alone, port of entry level databases. As these programs all essentially conduct application, enrollment, and background checks in similar fashions, CBP has developed a single, consolidated, and more efficient national approach to support each of these programs, which adopts the Global Enrollment System (GES) name, nationally."
U.S. Department of Homeland Security: http://www.dhs.gov/dhspublic/index.jsp