Versions of Iowa Code 135K.4 - Powers and duties on LawServer 2024 Iowa Code 135K.4 – Powers and duties 2023 Iowa Code 135K.4 – Powers and duties 2022 Iowa Code 135K.4 – Powers and duties 2020 Iowa Code 135K.4 – Powers and duties 2018 Iowa Code 135K.4 – Powers and duties 2016 Iowa Code 135K.4 – Powers and duties 2014 Iowa Code 135K.4 – Powers and duties. 2009 Iowa Code 135K.4 – Powers and duties