IC 9-21-8-12: Interstate highways; lane use restrictions for trucks

Sec. 12. Except when passing a slower vehicle, entering or leaving a highway, or where a special hazard exists that requires, for safety reasons, the use of an alternate lane, a person may not operate a truck, truck tractor, road tractor, trailer, semitrailer, or pole trailer on an interstate highway in any lane except the far right lane.