; 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. (e) Construction The amendments made by subsection (a) shall not be construed to create eligibility for relief from removal under former section 212(c) of the Immigration and Nationality Act where such eligibility did not exist before these amendments became effective. 303. Espionage clarification Section 212(a)(3)(A) of the Immigration and Nationality Act ( 8 U.S.C. 1182(a)(3)(A) ), is amended to read as follows: (A) In general Any alien who a consular officer, the Attorney General, or the Secretary of Homeland Security knows, or has reasonable ground to believe, seeks to enter the United States to engage solely, principally, or incidentally in, or who is engaged in, or with respect to clauses (i) and (iii) of this subparagraph has engaged in— (i) any activity— (I) to violate any law of the United States relating to espionage or sabotage; or (II) to violate or evade any law prohibiting the export from the United States of goods, technology, or sensitive information; (ii) any other unlawful activity; or (iii) any activity a purpose of which is the opposition to, or the control or overthrow of, the Government of the United States by force, violence, or other unlawful means; is inadmissible. . 304. Prohibition of the sale of firearms to, or the possession of firearms by, certain aliens Section 922 of title 18, United States Code, is amended— (1) in subsection (d)(5), in subparagraph (B), by striking (y)(2) and all that follows and inserting (y), is in the United States not as an alien lawfully admitted for permanent residence; ; (2) in subsection (g)(5), in subparagraph (B), by striking (y)(2) and all that follows and inserting (y), is in the United States not as an alien lawfully admitted for permanent residence;