2024 Iowa Code 200.11 – Filler material

2023 Iowa Code 200.11 – Filler material

2022 Iowa Code 200.11 – Filler material

2020 Iowa Code 200.11 – Filler material

2018 Iowa Code 200.11 – Filler material

2016 Iowa Code 200.11 – Filler material

2014 Iowa Code 200.11 – Filler material.

2009 Iowa Code 200.11 – Filler material