Versions of Iowa Code 512B.6 - Purposes and powers on LawServer 2023 Iowa Code 512B.6 – Purposes and powers 2022 Iowa Code 512B.6 – Purposes and powers 2020 Iowa Code 512B.6 – Purposes and powers 2018 Iowa Code 512B.6 – Purposes and powers 2016 Iowa Code 512B.6 – Purposes and powers 2014 Iowa Code 512B.6 – Purposes and powers. 2009 Iowa Code 512B.6 – Purposes and powers