If any a firefighter, advanced life support personnel, or emergency medical technician is discharged, separated, or retires, the firefighter shall, advanced life support personnel, or emergency medical technician must surrender the special number plates identifying him or her the person as a firefighter, advanced life support personnel, or emergency medical technician. The special plates shall must be surrendered to the secretary of revenue, who shall make the necessary changes in the registration file. The firefighter, advanced life support personnel, or emergency medical technician shall then obtain regular number plates.