Indiana Code Title 9. Motor Vehicles § 9-13-2-25.8

(1) has a seat or saddle for the use of the rider;

(2) is designed to travel on not more than three (3) wheels in contact with the ground;

(3) complies with applicable motor vehicle equipment requirements under IC 9-19 and 49 CFR 571;  and

(4) is registered as a Class A motor driven cycle under IC 9-18 (before its expiration) or IC 9-18.1.