Versions of Missouri Laws 86.920 - Retirement board established, responsibility for operation of retirement .. on LawServer 2023 Missouri Laws 86.920 – Retirement board established, responsibility for operation of retirement .. 2022 Missouri Laws 86.920 – Retirement board established, responsibility for operation of retirement .. 2020 Missouri Laws 86.920 – Retirement board established, responsibility for operation of retirement .. 2018 Missouri Laws 86.920 – Retirement board established, responsibility for operation of retirement .. 2016 Missouri Laws 86.920 – Retirement board established, responsibility for operation of retirement system 2015 Missouri Laws 86.920 – Retirement board established, responsibility for operation of retirement system 2014 Missouri Laws 86.920 – Retirement board established, responsibility for operation of retirement system 2013 Missouri Laws 86.920 – Retirement board established, responsibility for operation of retirement system 2009 Missouri Laws 86.920 – Retirement board established, responsibility for operation of retirement system