Versions of Iowa Code 368.18 - Amendment on LawServer 2023 Iowa Code 368.18 – Amendment 2022 Iowa Code 368.18 – Amendment 2020 Iowa Code 368.18 – Amendment 2018 Iowa Code 368.18 – Amendment 2016 Iowa Code 368.18 – Amendment 2014 Iowa Code 368.18 – Amendment. 2009 Iowa Code 368.18 – Amendment