Versions of Iowa Code 553.4 - Restraint prohibited on LawServer 2023 Iowa Code 553.4 – Restraint prohibited 2022 Iowa Code 553.4 – Restraint prohibited 2020 Iowa Code 553.4 – Restraint prohibited 2018 Iowa Code 553.4 – Restraint prohibited 2016 Iowa Code 553.4 – Restraint prohibited 2014 Iowa Code 553.4 – Restraint prohibited. 2009 Iowa Code 553.4 – Restraint prohibited