Versions of Iowa Code 543E.6 - Ownership -- restrictions and requirements on LawServer 2023 Iowa Code 543E.6 – Ownership — restrictions and requirements 2022 Iowa Code 543E.6 – Ownership — restrictions and requirements. 2020 Iowa Code 543E.6 – Ownership — restrictions and requirements. 2018 Iowa Code 543E.6 – Ownership — restrictions and requirements.