Versions of Iowa Code 142A.6 - Comprehensive tobacco use prevention and control initiative established -- purpose -- results on LawServer 2023 Iowa Code 142A.6 – Comprehensive tobacco use prevention and control initiative established — purpose — results 2022 Iowa Code 142A.6 – Comprehensive tobacco use prevention and control initiative established — purpose — results. 2020 Iowa Code 142A.6 – Comprehensive tobacco use prevention and control initiative established — purpose — results. 2018 Iowa Code 142A.6 – Comprehensive tobacco use prevention and control initiative established — purpose — results. 2016 Iowa Code 142A.6 – Comprehensive tobacco use prevention and control initiative established 2014 Iowa Code 142A.6 – Comprehensive tobacco use prevention and control initiative established – purpose – results. 2009 Iowa Code 142A.6 – Comprehensive tobacco use prevention and control initiative established — purpose — results