Versions of Iowa Code 12C.2 - Approval -- requirements on LawServer 2023 Iowa Code 12C.2 – Approval — requirements 2022 Iowa Code 12C.2 – Approval — requirements. 2020 Iowa Code 12C.2 – Approval — requirements. 2018 Iowa Code 12C.2 – Approval — requirements. 2016 Iowa Code 12C.2 – Approval 2014 Iowa Code 12C.2 – Approval – requirements. 2009 Iowa Code 12C.2 – Approval — requirements