Versions of Iowa Code 144.20 - Information on LawServer 2023 Iowa Code 144.20 – Information 2022 Iowa Code 144.20 – Information 2020 Iowa Code 144.20 – Information 2018 Iowa Code 144.20 – Information 2016 Iowa Code 144.20 – Information 2014 Iowa Code 144.20 – Information. 2009 Iowa Code 144.20 – Information