Versions of Iowa Code 147.137 - Consent in writing on LawServer 2023 Iowa Code 147.137 – Consent in writing 2022 Iowa Code 147.137 – Consent in writing 2020 Iowa Code 147.137 – Consent in writing 2018 Iowa Code 147.137 – Consent in writing 2016 Iowa Code 147.137 – Consent in writing 2014 Iowa Code 147.137 – Consent in writing. 2009 Iowa Code 147.137 – Consent in writing