Versions of Iowa Code 508C.4 - Construction on LawServer 2024 Iowa Code 508C.4 – Construction 2023 Iowa Code 508C.4 – Construction 2022 Iowa Code 508C.4 – Construction 2020 Iowa Code 508C.4 – Construction 2018 Iowa Code 508C.4 – Construction 2016 Iowa Code 508C.4 – Construction 2014 Iowa Code 508C.4 – Construction. 2009 Iowa Code 508C.4 – Construction