(A) The Department of Motor Vehicles upon registering a vehicle, under the laws of this State, which is designed and used primarily for the transportation of property or for the transportation of ten or more persons, may require information and may make investigation or tests necessary to enable it to determine whether the vehicle may be operated safely upon the highways in accordance with all the provisions of this chapter. The department may register the vehicle for a load capacity which, added to the empty or unloaded weight of the vehicle, will result in a permissible gross weight not exceeding the limitations set forth in this chapter. It is unlawful for a person to operate a vehicle or combination of vehicles with a load capacity in excess of that for which it is registered by the department or in excess of the limitations set forth in this chapter. A person making application for a "farm truck" license shall declare in the form prescribed by the department the true unloaded or empty weight of the vehicle and shall stencil or mark in a conspicuous place on the left side of the vehicle the true unloaded or empty weight if the unloaded or empty weight is over five thousand pounds. A "farm truck" operating solely in intrastate commerce and otherwise specified in § 56-5-225 is not required to have the name of the registered owner, lessor, or lessee stenciled or otherwise marked on the vehicle.

(B) A private motor truck or truck tractor equal to or exceeding 26,001 pounds gross weight and a for-hire motor truck or truck tractor must have the name of the registered owner or lessor on the side clearly distinguishable at a distance of fifty feet. These provisions do not apply to two-axle straight trucks hauling raw farm and forestry products. Except as provided in subsection (A) concerning certain "farm trucks", a truck operating pursuant to the federal motor carrier safety regulations must operate with the owner’s, lessor’s, or lessee’s name as required.