Versions of Montana Code 15-70-431. Determination of highway use on LawServer 2023 Montana Code 15-70-431. Determination of highway use 2022 Montana Code 15-70-431. Determination of highway use 2021 Montana Code 15-70-431. Determination of highway use 2019 Montana Code 15-70-431. Determination of highway use 2018 Montana Code 15-70-431. Determination of highway use 2016 Montana Code 15-70-431. Determination of highway use