8 U.S.C. § 1101(a)(13) (2010) (Title 8—Chapter 12: Immigration and Nationality)
(a) As used in this Act—
(13) (A) The terms "admission" and "admitted" mean, with respect to an alien, the lawful entry of the alien into the United States after inspection and authorization by an immigration officer.
(B) An alien who is paroled under section 212(d)(5) [8 U.S.C. § 1182(d)(5)] or permitted to land temporarily as an alien crewman shall not be considered to have been admitted.
(C) An alien lawfully admitted for permanent residence in the United States shall not be regarded as seeking an admission into the United States for purposes of the immigration laws unless the alien—
(i) has abandoned or relinquished that status,
(ii) has been absent from the United States for a continuous period in excess of 180 days,
(iii) has engaged in illegal activity after having departed the United States,
(iv) has departed from the United States while under legal process seeking removal of the alien from the United States, including removal proceedings under this Act and extradition proceedings,
(v) has committed an offense identified in section 212(a)(2) [8 U.S.C. § 1182(a)(2)], unless since such offense the alien has been granted relief under section 212(h) or 240A(a) [8 U.S.C. § 1182(h) or 1229b(a)], or
(vi) is attempting to enter at a time or place other than as designated by immigration officers or has not been admitted to the United States after inspection and authorization by an immigration officer.