Versions of Iowa Code 4.9 - Official copy prevails on LawServer 2023 Iowa Code 4.9 – Official copy prevails 2022 Iowa Code 4.9 – Official copy prevails 2020 Iowa Code 4.9 – Official copy prevails 2018 Iowa Code 4.9 – Official copy prevails 2016 Iowa Code 4.9 – Official copy prevails 2014 Iowa Code 4.9 – Official copy prevails. 2009 Iowa Code 4.9 – Official copy prevails