2023 Iowa Code 305B.13 – Retroactive applicability

2022 Iowa Code 305B.13 – Retroactive applicability

2020 Iowa Code 305B.13 – Retroactive applicability

2018 Iowa Code 305B.13 – Retroactive applicability

2016 Iowa Code 305B.13 – Retroactive applicability

2014 Iowa Code 305B.13 – Retroactive applicability.

2009 Iowa Code 305B.13 – Retroactive applicability