Versions of Iowa Code 135.11 - Duties of department on LawServer 2023 Iowa Code 135.11 – Duties of department 2022 Iowa Code 135.11 – Duties of department 2020 Iowa Code 135.11 – Duties of department 2018 Iowa Code 135.11 – Duties of department 2016 Iowa Code 135.11 – Duties of department 2014 Iowa Code 135.11 – Duties of department. 2009 Iowa Code 135.11 – Duties of department