Iowa Code Title II. Elections and Official Duties [Chs. 39-79] § 53.10. Absentee voting at the commissioner's office

2. a. Each person who wishes to vote by absentee ballot at the commissioner's office shall first sign an application for a ballot including the following information: name, current address, voter verification number, and the election for which the ballot is requested. The person may report a change of address or other information on the person's voter registration record at that time. Prior to furnishing a ballot, the commissioner shall verify the person’s identity as provided in section 49.78. The registered voter shall immediately mark the ballot; enclose the ballot in a secrecy envelope, if necessary, and seal it in the envelope marked with the affidavit; subscribe to the affidavit on the reverse side of the envelope; and return the absentee ballot to the commissioner. The commissioner shall record the numbers appearing on the application and affidavit envelope along with the name of the registered voter.

b. For purposes of this subsection, “voter verification number” means the registered voter's driver's license number or nonoperator's identification card number assigned to the voter by the department of transportation or the registered voter's identification number assigned to the voter by the state commissioner pursuant to section 47.7, subsection 2.