; (vi) the alien is convicted of an aggravated felony. ; and (E) by striking the undesignated matter at the end of the subparagraph (B). (3) Sustaining burden of proof; credibility determinations Subparagraph (C) of section 241(b)(3) of the Immigration and Nationality Act ( 8 U.S.C. 1231(b)(3)(C) ) is amended by striking In determining whether an alien has demonstrated that the alien’s life or freedom would be threatened for a reason described in subparagraph (A), and inserting For purposes of this paragraph, . (4) Effective date and application The amendments made in paragraphs (1) and (2) shall take effect as if enacted on May 11, 2005, and shall apply to applications for withholding of removal made on or after such date. (d) Effective dates Except as provided in paragraph (c)(4), the amendments made by this section shall take effect on the date of the enactment of this Act and sections 208(b)(2)(A), 240A(c), and 241(b)(3) of the Immigration and Nationality Act, as so amended, shall apply to— (1) all aliens in removal, deportation, or exclusion proceedings; (2) all applications pending on, or filed after, the date of the enactment of this Act; and (3) with respect to aliens and applications described in paragraph (1) or (2) of this subsection, acts and conditions constituting a ground for exclusion, deportation, or removal occurring or existing before, on, or after the date of the enactment of this Act. 517. Aggravated felonies (a) Definition of aggravated felony Paragraph (43) of section 101(a) of the Immigration and Nationality Act ( 8 U.S.C. 1101(a)(43) ), as amended by section 508, is further amended— (1) in subparagraph (A), by striking sexual abuse of a minor