S.D. Codified Laws § 41-6-35

Any resident fishing license or any resident senior fishing license permits the licensee to take fish, frogs, and turtles in the manner and to the extent provided in chapters 41-12 and 41-13. Any resident who has served in the armed forces of the United States and is a patient in any war veterans hospital in this state or a member of any war veterans domiciliary unit in this state for the care of war veterans, groups with over ten participants conducting a fishing event exclusively for persons with disabilities and their attendants; any school, governmental entity, charitable or nonprofit organization conducting an event, class, or program for the purpose of teaching basic fishing skills; and any person residing as a patient in a developmental disability facility may, upon application to the secretary of game, fish and parks, receive a resident fishing license without payment of any fee therefor. Any resident who is sixty-five years of age or older, may receive a resident senior fishing license upon payment of a reduced fee established by rules promulgated by the Game, Fish and Parks Commission pursuant to chapter 1-26.