IC 9-13-2-170.3: "Special machinery"

Sec. 170.3. "Special machinery" means a vehicle:

(1) that is designed and used to perform a specific function that is unrelated to transporting people or property on a highway;

(2) on which is permanently mounted machinery or equipment used to perform operations unrelated to transportation on a highway; and

(3) that is incapable of, or would require substantial modification to be capable of, carrying a load.