Versions of Iowa Code 8.6 - Specific powers and duties on LawServer 2023 Iowa Code 8.6 – Specific powers and duties 2022 Iowa Code 8.6 – Specific powers and duties 2020 Iowa Code 8.6 – Specific powers and duties 2018 Iowa Code 8.6 – Specific powers and duties 2016 Iowa Code 8.6 – Specific powers and duties 2014 Iowa Code 8.6 – Specific powers and duties. 2009 Iowa Code 8.6 – Specific powers and duties