Montana’s weight laws allow large vehicle combinations to travel its highways. The biggest difference in Montana is that gross weights in the state are governed only by the federal bridge formula to a maximum of 131,060 lbs. LCVs are allowed in the state, as well as increased weights to 137,800 lbs for vehicles travelling under a memorandum of understanding with the Canadian Province of Alberta.
- Montana Trucker Guide
- Montana Legal Code
- Permit Office Phone: 406-444-6130