All driver's licenses, permits, and identification cards issued to applicants under age twenty-one (21) shall have a vertical format and "Under 21" printed on the card. After having attained twenty-one (21) years of age, the holder of any such distinctive license, permit, or identification card may obtain a new card which shall not be distinctive.
Ga. Comp. R. & Regs. R. 375-3-1-.21
O.C.G.A. §§ 40-5-4, 40-5-26.