2024 Iowa Code 7D.15 – Public policy research foundation

2023 Iowa Code 7D.15 – Public policy research foundation

2022 Iowa Code 7D.15 – Public policy research foundation

2020 Iowa Code 7D.15 – Public policy research foundation

2018 Iowa Code 7D.15 – Public policy research foundation

2016 Iowa Code 7D.15 – Public policy research foundation

2014 Iowa Code 7D.15 – Public policy research foundation.

2009 Iowa Code 7D.15 – Public policy research foundation