Versions of Iowa Code 29B.74 - Principals on LawServer 2023 Iowa Code 29B.74 – Principals 2022 Iowa Code 29B.74 – Principals 2020 Iowa Code 29B.74 – Principals 2018 Iowa Code 29B.74 – Principals 2016 Iowa Code 29B.74 – Principals 2014 Iowa Code 29B.74 – Principals. 2009 Iowa Code 29B.74 – Principals
