Versions of Iowa Code 124C.7 - Rulemaking authority on LawServer 2023 Iowa Code 124C.7 – Rulemaking authority 2022 Iowa Code 124C.7 – Rulemaking authority 2020 Iowa Code 124C.7 – Rulemaking authority 2018 Iowa Code 124C.7 – Rulemaking authority 2016 Iowa Code 124C.7 – Rulemaking authority 2014 Iowa Code 124C.7 – Rulemaking authority. 2009 Iowa Code 124C.7 – Rulemaking authority