2023 Missouri Laws 577.021 – Chemical testing authorized — reasonable efforts to test required — ..

2022 Missouri Laws 577.021 – Chemical testing authorized — reasonable efforts to test required — …

2020 Missouri Laws 577.021 – Chemical testing authorized — reasonable efforts to test required — …

2018 Missouri Laws 577.021 – Chemical testing authorized — reasonable efforts to test required — …

2016 Missouri Laws 577.021 – Beginning January 1, 2017–Chemical testing authorized–reasonable efforts to test required–admissibility

2015 Missouri Laws 577.021 – Beginning January 1, 2017–Chemical testing authorized–reasonable efforts to test required–admissibility

2015 Missouri Laws 577.021 – Until December 31, 2016–Chemical testing authorized–reasonable efforts to test required–admissibility–severability clause

2014 Missouri Laws 577.021 – Beginning January 1, 2017–Chemical testing authorized–reasonable efforts to test required–admissibility

2014 Missouri Laws 577.021 – Until December 31, 2016–Chemical testing authorized–reasonable efforts to test required–admissibility–severability clause

2013 Missouri Laws 577.021 – Chemical testing authorized–reasonable efforts to test required–admissibility–severability clause

2009 Missouri Laws 577.021 – Chemical testing authorized–reasonable efforts to test required–admissibility–severability clause