Versions of Iowa Code 237.20 - Local board duties on LawServer 2023 Iowa Code 237.20 – Local board duties 2022 Iowa Code 237.20 – Local board duties 2020 Iowa Code 237.20 – Local board duties 2018 Iowa Code 237.20 – Local board duties 2016 Iowa Code 237.20 – Local board duties 2014 Iowa Code 237.20 – Local board duties. 2009 Iowa Code 237.20 – Local board duties