Versions of Iowa Code 147.21 - Examination information on LawServer 2023 Iowa Code 147.21 – Examination information 2022 Iowa Code 147.21 – Examination information 2020 Iowa Code 147.21 – Examination information 2018 Iowa Code 147.21 – Examination information 2016 Iowa Code 147.21 – Examination information 2014 Iowa Code 147.21 – Examination information. 2009 Iowa Code 147.21 – Examination information