Versions of See prior versions of a law on LawServer 2024 Iowa Code 455B.500 – Waste management research by persons in conjunction with institutions of higher education 2023 Iowa Code 455B.500 – Waste management research by persons in conjunction with institutions of higher education 2022 Iowa Code 455B.500 – Waste management research by persons in conjunction with institutions of higher education 2020 Iowa Code 455B.500 – Waste management research by persons in conjunction with institutions of higher education 2018 Iowa Code 455B.500 – Waste management research by persons in conjunction with institutions of higher education 2016 Iowa Code 455B.500 – Waste management research by persons in conjunction with institutions of higher education 2014 Iowa Code 455B.500 – Waste management research by persons in conjunction with institutions of higher education. 2009 Iowa Code 455B.500 – Waste management research by persons in conjunction with institutions of higher education
