Versions of Iowa Code 29B.53 - Number of votes required on LawServer 2023 Iowa Code 29B.53 – Number of votes required 2022 Iowa Code 29B.53 – Number of votes required 2020 Iowa Code 29B.53 – Number of votes required 2018 Iowa Code 29B.53 – Number of votes required 2016 Iowa Code 29B.53 – Number of votes required 2014 Iowa Code 29B.53 – Number of votes required. 2009 Iowa Code 29B.53 – Number of votes required