; and (2) to all aliens who are required to establish admissibility on or after such date, and in all removal, deportation, or exclusion proceedings that are filed, pending, or reopened, on or after such date. 308. Precluding withholding of removal for aggravated felons (a) In general Section 241(b)(3)(B) ( 8 U.S.C. 1231(b)(3)(B) ), as amended by section 201, is further amended by inserting after clause (v), as inserted by section 201, the following: (vi) the alien is convicted of an aggravated felony. . (b) Effective date The amendment made by subsection (a) shall apply— (1) to any act that occurred before, on, or after the date of the enactment of this Act; and (2) to all aliens who are required to establish admissibility on or after such date, and in all removal, deportation, or exclusion proceedings that are filed, pending, or reopened on or after such date. 309. Inadmissibility and deportability of drunk drivers (a) In general Section 101(a)(43) of the Immigration and Nationality Act ( 8 U.S.C. 1101(a)(43) ) (as amended by this Act) is further amended— (1) in subparagraph (T), by striking and ; (2) in subparagraph (U), by striking the period at the end and inserting ; and ; and (3) by inserting after subparagraph (U) the following: (V) (i) a single conviction for driving while intoxicated (including a conviction for driving while under the influence of or impairment by alcohol or drugs), when such impaired driving was a cause of the serious bodily injury or death of another person