Versions of Iowa Code 321.330 - Use of crosswalks on LawServer 2023 Iowa Code 321.330 – Use of crosswalks 2022 Iowa Code 321.330 – Use of crosswalks 2020 Iowa Code 321.330 – Use of crosswalks 2018 Iowa Code 321.330 – Use of crosswalks 2016 Iowa Code 321.330 – Use of crosswalks 2014 Iowa Code 321.330 – Use of crosswalks. 2009 Iowa Code 321.330 – Use of crosswalks