; (B) who have signed a voluntary departure agreement; (C) who have overstayed their authorized period of stay; or (D) whose visas have been revoked. (2) Immigration violators file The National Crime Information Center shall enter all of the information received pursuant to paragraph (1) into the Immigration Violators File regardless of whether— (A) the alien concerned received notice of a final order of removal; (B) the alien concerned has already been removed; or (C) sufficient identifying information is available with respect to the alien concerned. (b) Inclusion of information in the NCIC index (1) In general Section 534(a) of title 28, United States Code, is amended— (A) by redesignating paragraphs (4) and (5) as paragraphs (5) and (6), respectively; and (B) by inserting after paragraph (3) the following: (4) acquire, collect, classify, and preserve records of violations by aliens of the immigration laws of the United States, regardless of whether— (A) any such alien has received notice of any such violation; (B) sufficient identifying information is available with respect to any such alien; and (C) any such alien has already been removed from the United States