Versions of Iowa Code 901D.4 - Rulemaking -- fees on LawServer 2023 Iowa Code 901D.4 – Rulemaking — fees 2022 Iowa Code 901D.4 – Rulemaking — fees. 2020 Iowa Code 901D.4 – Rulemaking — fees. 2018 Iowa Code 901D.4 – Rulemaking — fees.