2023 Iowa Code 321.294 – Minimum speed regulation

2022 Iowa Code 321.294 – Minimum speed regulation

2020 Iowa Code 321.294 – Minimum speed regulation

2018 Iowa Code 321.294 – Minimum speed regulation

2016 Iowa Code 321.294 – Minimum speed regulation

2014 Iowa Code 321.294 – Minimum speed regulation.

2009 Iowa Code 321.294 – Minimum speed regulation