Versions of Iowa Code 154B.2 - Practice not authorized on LawServer 2023 Iowa Code 154B.2 – Practice not authorized 2022 Iowa Code 154B.2 – Practice not authorized 2020 Iowa Code 154B.2 – Practice not authorized 2018 Iowa Code 154B.2 – Practice not authorized 2016 Iowa Code 154B.2 – Practice not authorized 2014 Iowa Code 154B.2 – Practice not authorized. 2009 Iowa Code 154B.2 – Practice not authorized