Versions of Iowa Code 670.11 - Claims not retrospective on LawServer 2023 Iowa Code 670.11 – Claims not retrospective 2022 Iowa Code 670.11 – Claims not retrospective 2020 Iowa Code 670.11 – Claims not retrospective 2018 Iowa Code 670.11 – Claims not retrospective 2016 Iowa Code 670.11 – Claims not retrospective 2014 Iowa Code 670.11 – Claims not retrospective. 2009 Iowa Code 670.11 – Claims not retrospective