Versions of Iowa Code 158.2 - Prohibition -- exceptions on LawServer 2023 Iowa Code 158.2 – Prohibition — exceptions 2022 Iowa Code 158.2 – Prohibition — exceptions. 2020 Iowa Code 158.2 – Prohibition — exceptions. 2018 Iowa Code 158.2 – Prohibition — exceptions. 2016 Iowa Code 158.2 – Prohibition 2014 Iowa Code 158.2 – Prohibition – exceptions. 2009 Iowa Code 158.2 – Prohibition — exceptions