2024 Iowa Code 72.1 – Contracts for excess expenditures — exception for coal

2023 Iowa Code 72.1 – Contracts for excess expenditures — exception for coal

2022 Iowa Code 72.1 – Contracts for excess expenditures — exception for coal.

2020 Iowa Code 72.1 – Contracts for excess expenditures — exception for coal.

2018 Iowa Code 72.1 – Contracts for excess expenditures — exception for coal.

2016 Iowa Code 72.1 – Contracts for excess expenditures

2014 Iowa Code 72.1 – Contracts for excess expenditures – exception for coal.

2009 Iowa Code 72.1 – Contracts for excess expenditures — exception for coal