Pub. L. 107-173, tit. VI, sec. 606
RETENTION OF NONIMMIGRANT VISA APPLICATIONS BY THE DEPARTMENT OF STATE.
SEC. 606. RETENTION OF NONIMMIGRANT VISA APPLICATIONS BY THE DEPARTMENT OF STATE. The Department of State shall retain, for a period of seven years from the date of application, every application for a nonimmigrant visa under section 101(a)(15) of the Immigration and Nationality Act (8 U.S.C. 1101(a)(15)) in a form that will be admissible in the courts of the United States or in administrative proceedings, including removal proceedings under such Act, without regard to whether the application was approved or denied.