Versions of Iowa Code 600B.40 - Custody and visitation on LawServer 2023 Iowa Code 600B.40 – Custody and visitation 2022 Iowa Code 600B.40 – Custody and visitation 2020 Iowa Code 600B.40 – Custody and visitation 2018 Iowa Code 600B.40 – Custody and visitation 2016 Iowa Code 600B.40 – Custody and visitation 2014 Iowa Code 600B.40 – Custody and visitation. 2009 Iowa Code 600B.40 – Custody and visitation