Iowa Code Title II. Elections and Official Duties [Chs. 39-79] § 46.22. Voting

Voting at judicial elections shall be by separate paper ballot or optical scan ballot in the space provided for public measures. If separate paper ballots are used, the election judges shall offer a ballot to each voter. If optical scan ballots are used, either a separate ballot or a distinct heading may be used to distinguish the judicial ballot. Separate ballot boxes for the general election ballots and the judicial election ballots are not required. The general election ballot and the judicial election ballot may be voted in the same voting booth.