Versions of Iowa Code 321.253A - Directional signs relating to historic sites on land owned or managed by state agencies on LawServer 2023 Iowa Code 321.253A – Directional signs relating to historic sites on land owned or managed by state agencies 2022 Iowa Code 321.253A – Directional signs relating to historic sites on land owned or managed by state agencies 2020 Iowa Code 321.253A – Directional signs relating to historic sites on land owned or managed by state agencies 2018 Iowa Code 321.253A – Directional signs relating to historic sites on land owned or managed by state agencies 2016 Iowa Code 321.253A – Directional signs relating to historic sites on land owned or managed by state agencies 2014 Iowa Code 321.253A – Directional signs relating to historic sites on land owned or managed by state agencies. 2009 Iowa Code 321.253A – Directional signs relating to historic sites on land owned or managed by state agencies