Versions of Iowa Code 194.6 - Bacterial test on LawServer 2023 Iowa Code 194.6 – Bacterial test 2022 Iowa Code 194.6 – Bacterial test 2020 Iowa Code 194.6 – Bacterial test 2018 Iowa Code 194.6 – Bacterial test 2016 Iowa Code 194.6 – Bacterial test 2014 Iowa Code 194.6 – Bacterial test. 2009 Iowa Code 194.6 – Bacterial test