Versions of Montana Code 15-6-231. Terminated on LawServer 2023 Montana Code 15-6-231. Terminated 2022 Montana Code 15-6-231. Terminated 2019 Montana Code 15-6-231. Periodic review of property tax exemption — dispute resolution — rulemaking 2018 Montana Code 15-6-231. Periodic review of property tax exemption — dispute resolution — rulemaking 2016 Montana Code 15-6-231. Periodic review of property tax exemption — dispute resolution — rulemaking