Versions of Iowa Code 476.81 - Audit required on LawServer 2024 Iowa Code 476.81 – Audit required 2023 Iowa Code 476.81 – Audit required 2022 Iowa Code 476.81 – Audit required 2020 Iowa Code 476.81 – Audit required 2018 Iowa Code 476.81 – Audit required 2016 Iowa Code 476.81 – Audit required 2014 Iowa Code 476.81 – Audit required. 2009 Iowa Code 476.81 – Audit required