Iowa Code § 43.76: Withdrawal of nominated candidates.

1. A candidate nominated in a primary election for any office for which nomination papers are required to be filed with the state commissioner may withdraw as a nominee for that office on or before, but not later than, the eighty-first day before the date of the general election by so notifying the state commissioner in writing.

2. A candidate nominated in a primary election for any office for which nomination papers are required to be filed with the commissioner may withdraw as a nominee for that office on or before, but not later than, the seventy-fourth day before the date of the general election by so notifying the commissioner in writing.