"Since its inception, the United States Visitor and Immigrant Status Indicator Technology (US-VISIT) Program has provided biometric screening for Department of Homeland Security (DHS) components and has partnered with other Federal agencies in the use of biometric data for national security initiatives. The Automated Biometric Identification System (IDENT), US-VISIT's biometric database, contains fingerprint records for over 108 million subjects. IDENT is currently interoperable with the Federal Bureau of Investigation's (FBI) Integrated Automated Fingerprint Identification System (IAFIS). To facilitate the data sharing that is at the core of what US-VISIT does, this document provides the technical standards US-VISIT uses--or will use in the near future--to implement the actual collection, storage, and transmission of biometric and associated biographic data. Use of these standards will make US-VISIT data sharing more accurate, repeatable, and reliable, which will in turn provide homeland security decisionmakers [sic] with critical identity verification data in a timely manner."
United States Department of Homeland Security: http://www.dhs.gov