2024 Iowa Code 479B.20 – Land restoration standards

2023 Iowa Code 479B.20 – Land restoration standards

2022 Iowa Code 479B.20 – Land restoration standards

2020 Iowa Code 479B.20 – Land restoration standards

2018 Iowa Code 479B.20 – Land restoration standards

2016 Iowa Code 479B.20 – Land restoration standards

2014 Iowa Code 479B.20 – Land restoration standards.

2009 Iowa Code 479B.20 – Land restoration standards