2024 Iowa Code 321.474 – Department may restrict

2023 Iowa Code 321.474 – Department may restrict

2022 Iowa Code 321.474 – Department may restrict

2020 Iowa Code 321.474 – Department may restrict

2018 Iowa Code 321.474 – Department may restrict

2016 Iowa Code 321.474 – Department may restrict

2014 Iowa Code 321.474 – Department may restrict.

2009 Iowa Code 321.474 – Department may restrict