(1) Class D carriers shall conduct operations pursuant to a certificate of public convenience and necessity issued by the commission authorizing the transportation of the commodities described in 69-12-301 (3). Class D carriers, when applying for a new or additional certificate of public convenience and necessity, shall file an application with the commission in accordance with the requirements of this chapter and the rules of the commission.
(2) A motor carrier may not possess a Class D motor carrier certificate of public convenience or necessity or operate as a Class D motor carrier unless the motor carrier actually engages in the transportation of garbage on a regular basis as part of the motor carrier's usual business operation.