Border Crossing Identification Card
8 U.S.C. § 1101(a)(6) (2010) (Title 8—Chapter 12: Immigration and Nationality)
(a) As used in this Act—
(6) The term "border crossing identification card" means a document of identity bearing that designation issued to an alien who is lawfully admitted for permanent residence, or to an alien who is a resident in foreign contiguous territory, by a consular officer or an immigration officer for the purpose of crossing over the borders between the United States and foreign contiguous territory in accordance with such conditions for its issuance and use as may be prescribed by regulations. Such regulations shall provide that (A) each such document include a biometric identifier (such as the fingerprint or handprint of the alien) that is machine readable and (B) an alien presenting a border crossing identification card is not permitted to cross over the border into the United States unless the biometric identifier contained on the card matches the appropriate biometric characteristic of the alien.