Versions of See prior versions of a law on LawServer 2024 Missouri Laws 174.750 – Missouri arboretum created under direction of board of regents of Northwest .. 2023 Missouri Laws 174.750 – Missouri arboretum created under direction of board of regents of Northwest .. 2022 Missouri Laws 174.750 – Missouri arboretum created under direction of board of regents of Northwest .. 2020 Missouri Laws 174.750 – Missouri arboretum created under direction of board of regents of Northwest .. 2018 Missouri Laws 174.750 – Missouri arboretum created under direction of board of regents of Northwest .. 2016 Missouri Laws 174.750 – Missouri arboretum created under direction of board of regents of Northwest Missouri State University 2015 Missouri Laws 174.750 – Missouri arboretum created under direction of board of regents of Northwest Missouri State University 2014 Missouri Laws 174.750 – Missouri arboretum created under direction of board of regents of Northwest Missouri State University 2013 Missouri Laws 174.750 – Missouri arboretum created under direction of board of regents of Northwest Missouri State University 2009 Missouri Laws 174.750 – Missouri arboretum created under direction of board of regents of Northwest Missouri …