Indiana Code Title 9. Motor Vehicles § 9-20-4-3

Sec. 3. (a) The gross weight declared by an applicant in an application for registration under this title determines and fixes the limit of the load, including the unladen weight of the vehicle or combination of vehicles fully equipped for service, that may be transported by a vehicle or combination of vehicles on the highways for the period for which the registration or license is granted.  Except as provided in subsection (b), the transportation of a load on a registered and licensed vehicle or combination of vehicles in excess of the limit fixed in the application for registration subjects the person violating a provision of this title to the penalty provisions in this title or to the revocation of the license for the vehicle, or both.

(b) Because of the various types of scales used and the variance in scale weights, a penalty may not be assessed if the actual scale weight of a vehicle or combination of vehicles with load does not exceed one and one-half percent (1 1/2 %) of the registered weight of the vehicle or combination of vehicles, including load.

(c) A person who violates this section commits a Class C infraction.  In addition, the person shall pay the difference between the fee paid for registration of the vehicle and the fee for the registration of the vehicle plus a maximum load of a weight equal to the excess load being transported.  Until the fee is paid, the person transporting the excess load is not permitted to move the transporting vehicle.