(a) For the purposes of ad valorem taxation, motor vehicles are classified as a separate and distinct class of tangible property. Such class of tangible property shall be divided into two distinct and separate subclasses of tangible property with one subclass including heavy-duty equipment motor vehicles as defined in Code Section 48-5-505 and the other subclass including all other motor vehicles. The procedures prescribed by this article for returning motor vehicles, excluding heavy-duty equipment motor vehicles as defined in Code Section 48-5-505, for taxation, determining the applicable rates for taxation, and collecting the ad valorem tax imposed on motor vehicles shall be exclusive.

(b) For the purposes of ad valorem taxation, mobile homes are classified as a separate and distinct class of tangible property. The procedures prescribed by this article for returning mobile homes for taxation, determining the applicable rates for taxation, and collecting the ad valorem tax imposed on mobile homes shall be exclusive.

(c) For the purposes of ad valorem taxation, commercial vehicles are classified as a separate and distinct class of tangible property. The procedures prescribed by this article for returning commercial vehicles for taxation and for determining the valuation of commercial vehicles shall be exclusive and as provided for in Code Section 48-5-442.1. All other procedures prescribed by this article for the taxation of motor vehicles shall be applicable to the taxation of commercial vehicles.