Versions of Iowa Code 89.7A - Certificates on LawServer 2024 Iowa Code 89.7A – Certificates 2023 Iowa Code 89.7A – Certificates 2022 Iowa Code 89.7A – Certificates 2020 Iowa Code 89.7A – Certificates 2018 Iowa Code 89.7A – Certificates 2016 Iowa Code 89.7A – Certificates 2014 Iowa Code 89.7A – Certificates. 2009 Iowa Code 89.7A – Certificates