Versions of Iowa Code 200A.4 - Rulemaking on LawServer 2023 Iowa Code 200A.4 – Rulemaking 2022 Iowa Code 200A.4 – Rulemaking 2020 Iowa Code 200A.4 – Rulemaking 2018 Iowa Code 200A.4 – Rulemaking 2016 Iowa Code 200A.4 – Rulemaking 2014 Iowa Code 200A.4 – Rulemaking. 2009 Iowa Code 200A.4 – Rulemaking