Versions of Iowa Code 321.467 - Retractable axles on LawServer 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