25 CFR § 170.933
Can Tribes regulate oversize or overweight vehicles?
February 24, 2021
Yes. Tribal governments can regulate travel on roads under their jurisdiction and establish a permitting process to regulate the travel of oversize or overweight vehicles, under applicable Federal law. BIA may, with the consent of the affected Tribe, establish a permitting process to regulate the travel of oversize or overweight vehicles on the BIA road system.