Versions of Iowa Code 321.379 - Violations on LawServer 2023 Iowa Code 321.379 – Violations 2022 Iowa Code 321.379 – Violations 2020 Iowa Code 321.379 – Violations 2018 Iowa Code 321.379 – Violations 2016 Iowa Code 321.379 – Violations 2014 Iowa Code 321.379 – Violations. 2009 Iowa Code 321.379 – Violations