On receipt of an application under § 32-9-6 and payment of the commercial motor vehicle fee, required by this chapter, and upon satisfactory evidence that the applicant has complied with all laws, rules, and regulations of this state covering motor vehicles and motor carriers, the county treasurer or department shall issue to the applicant a receipt that identifies the motor vehicle, trailer, or semitrailer and shall assign a number to the vehicle. The number shall be endorsed upon the application and receipt. The county treasurer or department shall issue to the applicant a commercial motor vehicle certificate bearing the number. The certificate shall be placed and carried in the vehicle in a conspicuous place and is subject to examination upon demand by any officer of this state, county, or municipality. The county treasurer or department shall issue to the applicant two commercial motor vehicle plates for each motor vehicle. Each county treasurer office shall be stocked with commercial license plates issued pursuant to this section and commercial trailer license plates issued pursuant to §