Versions of Iowa Code 194.5 - Frequency of tests on LawServer 2023 Iowa Code 194.5 – Frequency of tests 2022 Iowa Code 194.5 – Frequency of tests 2020 Iowa Code 194.5 – Frequency of tests 2018 Iowa Code 194.5 – Frequency of tests 2016 Iowa Code 194.5 – Frequency of tests 2014 Iowa Code 194.5 – Frequency of tests. 2009 Iowa Code 194.5 – Frequency of tests