Versions of Iowa Code 29A.3 - Units of guard on LawServer 2024 Iowa Code 29A.3 – Units of guard 2023 Iowa Code 29A.3 – Units of guard 2022 Iowa Code 29A.3 – Units of guard 2020 Iowa Code 29A.3 – Units of guard 2018 Iowa Code 29A.3 – Units of guard 2016 Iowa Code 29A.3 – Units of guard 2014 Iowa Code 29A.3 – Units of guard. 2009 Iowa Code 29A.3 – Units of guard