personal identification card shall be accepted by a Federal agency for any official purpose unless such driver’s license or personal identification card conforms to the minimum standards established under paragraph (2). The date shall be as early as the Secretary determines it is practicable for the States to comply with such date with reasonable efforts. (C) State certification (i) In general Each State shall certify to the Secretary of Transportation that the State is in compliance with the requirements of this section. (ii) Frequency Certifications under clause (i) shall be made at such intervals and in such a manner as the Secretary of Transportation, with the concurrence of the Secretary of Homeland Security, may prescribe by regulation. (iii) Audits The Secretary of Transportation may conduct periodic audits of each State’s compliance with the requirements of this section. (2) Minimum standards Not later than 18 months after the date of the enactment of this Act, the Secretary of Transportation, in consultation with the Secretary of Homeland Security, shall establish, by regulation, minimum standards for driver’s licenses or personal identification cards issued by a State for use by Federal agencies for identification purposes that shall include— (A) standards for documentation required as proof of identity of an applicant for a driver’s license or personal identification card