Versions of Iowa Code 205.6 - Poison register on LawServer 2024 Iowa Code 205.6 – Poison register 2023 Iowa Code 205.6 – Poison register 2022 Iowa Code 205.6 – Poison register 2020 Iowa Code 205.6 – Poison register 2018 Iowa Code 205.6 – Poison register 2016 Iowa Code 205.6 – Poison register 2014 Iowa Code 205.6 – Poison register. 2009 Iowa Code 205.6 – Poison register