S.D. Codified Laws § 32-5-192

Any owner of a motor vehicle, who is a resident of this state, who served as a firefighter for more than ten years, and who has complied with all the laws of this state in relation to the registration of a motor vehicle, may receive plates bearing a special number and design or a license plate decal designating the person as a retired firefighter. The plate or decal must be designed by the fire marshal and subject to the approval of the department. The special plates must be displayed as set forth in § 32-5-98 and follow the same requirements set out in §§ 32-5-115, 32-5-119 and 32-5-221.