Versions of Montana Code 35-14-1502. Registration to do business in this state on LawServer 2023 Montana Code 35-14-1502. Registration to do business in this state 2022 Montana Code 35-14-1502. Registration to do business in this state 2021 Montana Code 35-14-1502. Registration to do business in this state 2019 Montana Code 35-14-1502. Registration to do business in this state