2024 Iowa Code 321.467 – Retractable axles

2023 Iowa Code 321.467 – Retractable axles

2022 Iowa Code 321.467 – Retractable axles

2020 Iowa Code 321.467 – Retractable axles

2018 Iowa Code 321.467 – Retractable axles

2016 Iowa Code 321.467 – Retractable axles

2014 Iowa Code 321.467 – Retractable axles.

2009 Iowa Code 321.467 – Retractable axles