2024 Iowa Code 80B.17 – Certification required

2023 Iowa Code 80B.17 – Certification required

2022 Iowa Code 80B.17 – Certification required

2020 Iowa Code 80B.17 – Certification required

2018 Iowa Code 80B.17 – Certification required

2016 Iowa Code 80B.17 – Certification required

2014 Iowa Code 80B.17 – Certification required.

2009 Iowa Code 80B.17 – Certification required