"Your voter registration application cannot be accepted because it does not include an Iowa driver's license number, an Iowa nonoperator's identification number or the last four numbers of your social security number. You must submit a new voter registration form before you can be registered to vote in this county.
"If you have an Iowa driver's license, you must write that number on your voter registration form. If you do not have an Iowa driver's license, use the number from your Iowa nonoperator's identification card. If you do not have an identification card issued by the state of Iowa, write the last four numbers of your social security number on the form. If you don't have any of these identification numbers, please check the box next to 'NONE' on the form. Failure to provide any of the three forms of identification will require you to register to vote on election day. Please note it is a Class "D" felony to provide false information on a voter registration application."
Iowa Admin. Code r. 821-2.8