2024 Iowa Code 321.350 – Primary roads as through highways

2023 Iowa Code 321.350 – Primary roads as through highways

2022 Iowa Code 321.350 – Primary roads as through highways

2020 Iowa Code 321.350 – Primary roads as through highways

2018 Iowa Code 321.350 – Primary roads as through highways

2016 Iowa Code 321.350 – Primary roads as through highways

2014 Iowa Code 321.350 – Primary roads as through highways.

2009 Iowa Code 321.350 – Primary roads as through highways