Versions of Iowa Code 462A.12 - Prohibited operation on LawServer 2023 Iowa Code 462A.12 – Prohibited operation 2022 Iowa Code 462A.12 – Prohibited operation 2020 Iowa Code 462A.12 – Prohibited operation 2018 Iowa Code 462A.12 – Prohibited operation 2016 Iowa Code 462A.12 – Prohibited operation 2014 Iowa Code 462A.12 – Prohibited operation. 2009 Iowa Code 462A.12 – Prohibited operation