Versions of Iowa Code 161D.4 - Mission statement on LawServer 2024 Iowa Code 161D.4 – Mission statement 2023 Iowa Code 161D.4 – Mission statement 2022 Iowa Code 161D.4 – Mission statement 2020 Iowa Code 161D.4 – Mission statement 2018 Iowa Code 161D.4 – Mission statement 2016 Iowa Code 161D.4 – Mission statement 2014 Iowa Code 161D.4 – Mission statement. 2009 Iowa Code 161D.4 – Mission statement