; or (ii) a mental impairment. (6) Payment of Federal taxes (A) Definition of applicable Federal tax liability In this paragraph, the term applicable Federal tax liability means liability for Federal taxes imposed under the Internal Revenue Code of 1986, including any penalties and interest on taxes imposed under the Internal Revenue Code of 1986. (B) Payment required Not later than the date on which an alien submits an application for adjustment of status under paragraph (1), the alien shall satisfy any applicable Federal tax liability due and owing as of that date of submission. (7) Submission of biometric and biographical data (A) In general The Secretary may not adjust the status of an alien under this subsection unless the alien submits to the Secretary biometric and biographical data in accordance with procedures established by the Secretary. (B) Alternative procedure The Secretary shall provide an alternative procedure for the submission of biometric and biographical data for any applicant for adjustment of status who is unable to provide biometric or biographical data due to a physical impairment. (8) Background checks (A) Requirement for background checks The Secretary shall use biometric, biographical, and other data determined by the Secretary to be appropriate— (i) to conduct security and law enforcement background checks of any alien applying for adjustment of status under this subsection