Versions of Montana Code 50-20-507. Exceptions on LawServer 2023 Montana Code 50-20-507. Exceptions 2022 Montana Code 50-20-507. Exceptions 2021 Montana Code 50-20-507. Exceptions 2019 Montana Code 50-20-507. Exceptions 2018 Montana Code 50-20-507. Exceptions 2016 Montana Code 50-20-507. Exceptions 2014 Montana Code 50-20-507. Exceptions 2013 Montana Code 50-20-507. Exceptions