; and (B) by which the individual with a disability can designate whether the individual prefers that such blank absentee ballot be transmitted by mail or electronically. (2) Transmission if no preference indicated In the case where an individual with a disability does not designate a preference under paragraph (1)(B), the State shall transmit the ballot by any delivery method allowable in accordance with applicable State law, or if there is no applicable State law, by mail. (3) Application of methods to track delivery to and return of ballot by individual requesting ballot Under the procedures established under paragraph (1), the State shall apply such methods as the State considers appropriate, such as assigning a unique identifier to the ballot, to ensure that if an individual with a disability requests the State to transmit a blank absentee ballot to the individual in accordance with this subsection, the voted absentee ballot which is returned by the individual is the same blank absentee ballot which the State transmitted to the individual. (e) Hardship Exemption (1) In general If the chief State election official determines that the State is unable to meet the requirement under subsection (a)(5)(A) with respect to an election for Federal office due to an undue hardship described in paragraph (2)(B), the chief State election official shall request that the Attorney General grant a waiver to the State of the application of such subsection. Such request shall include— (A) a recognition that the purpose of such subsection is to individuals with disabilities enough time to vote in an election for Federal office; (B) an explanation of the hardship that indicates why the State is unable to transmit such individuals an absentee ballot in accordance with such subsection; (C) the number of days prior to the election for Federal office that the State requires absentee ballots be transmitted to such individuals