Versions of Iowa Code 144B.12 - General provisions on LawServer 2023 Iowa Code 144B.12 – General provisions 2022 Iowa Code 144B.12 – General provisions 2020 Iowa Code 144B.12 – General provisions 2018 Iowa Code 144B.12 – General provisions 2016 Iowa Code 144B.12 – General provisions 2014 Iowa Code 144B.12 – General provisions. 2009 Iowa Code 144B.12 – General provisions