Versions of Iowa Code 256.4 - Oath -- vacancies on LawServer 2023 Iowa Code 256.4 – Oath — vacancies 2022 Iowa Code 256.4 – Oath — vacancies. 2020 Iowa Code 256.4 – Oath — vacancies. 2018 Iowa Code 256.4 – Oath — vacancies. 2016 Iowa Code 256.4 – Oath 2014 Iowa Code 256.4 – Oath – vacancies. 2009 Iowa Code 256.4 – Oath — vacancies