Versions of Iowa Code 124.305 - Contested case proceedings on LawServer 2023 Iowa Code 124.305 – Contested case proceedings 2022 Iowa Code 124.305 – Contested case proceedings 2020 Iowa Code 124.305 – Contested case proceedings 2018 Iowa Code 124.305 – Order to show cause 2016 Iowa Code 124.305 – Order to show cause 2014 Iowa Code 124.305 – Order to show cause. 2009 Iowa Code 124.305 – Order to show cause