; and (2) shall apply to applicants for naturalization who apply for naturalization on or after such date. (d) Rulemaking Not later than 180 days after the date of the enactment of this Act, the Secretary of Homeland Security shall promulgate regulations to carry out the amendment made by subsection (a). 306. Family integration Section 201(b)(2)(A)(i) of the Immigration and Nationality Act ( 8 U.S.C. 1151(b)(2)(A)(i) ) is amended by striking 21 years of age and inserting 18 years of age . 307. Revision of grounds for deportation Section 237(a) of the Immigration and Nationality Act ( 8 U.S.C. 1227(a) ) is amended by striking paragraph (5). 308. Waiver to ensure access to citizenship The Immigration and Nationality Act ( 8 U.S.C. 1101 et seq. ) is amended— (1) in section 212 ( 8 U.S.C. 1182 )— (A) in subsection (a)(6)(C)— (i) in clause (ii)— (I) by inserting and willfully after falsely each place such term appears; and (II) in subclause (I), by striking or any other Federal or State law ; and (ii) by striking clause (iii); and (B) in subsection (i), by amending paragraph (1) to read as follows: (1) The Attorney General or the Secretary of Homeland Security may, in the discretion of the Attorney General or the Secretary, waive the application of subsection (a)(6)(C)(ii) with respect to an immigrant who is the parent, spouse, son, or daughter of a United States citizen or of an alien lawfully admitted for permanent residence, or with respect to an alien granted classification under clause (iii) or (iv) of section 204(a)(1)(A), if the Attorney General or the Secretary determines that the admission to the United States of such alien would not be contrary to the national welfare, safety, or security of the United States.