Versions of Montana Code 13-1-501. Purpose -- definition on LawServer 2023 Montana Code 13-1-501. Purpose — definition 2022 Montana Code 13-1-501. Purpose — definition 2021 Montana Code 13-1-501. Purpose — definition 2019 Montana Code 13-1-501. Purpose — definition 2018 Montana Code 13-1-501. Purpose — definition 2016 Montana Code 13-1-501. Purpose