A “lobbyist” is any person who seeks the introduction of legislation or promotes, opposes, or influences in any manner the passage by the Legislature of any legislation affecting the special interests of any agency, individual, association, or business, as distinct from those of the whole people of the state, or acts in any manner as a lobbyist in connection with any such legislation.
S.D. Codified Laws § 2-12-1: Names of lobbyists to be registered with secretary of state; termination of employment