Versions of Iowa Code 358.31 - Petition filed on LawServer 2023 Iowa Code 358.31 – Petition filed 2022 Iowa Code 358.31 – Petition filed 2020 Iowa Code 358.31 – Petition filed 2018 Iowa Code 358.31 – Petition filed 2016 Iowa Code 358.31 – Petition filed 2014 Iowa Code 358.31 – Petition filed. 2009 Iowa Code 358.31 – Petition filed