S.D. Codified Laws § 1-32-4.4

An advisory council, committee, board, or commission created in response to federal law or regulation may not be created to remain in existence longer than two years after the date of its creation or beyond the period required to receive federal or private funds, whichever occurs later, unless extended by the Governor and filed with the secretary of state. If the existence of an advisory council is extended, the appointing authority shall specify a new date, not more than two years later, when the existence of the advisory council shall end and file a record of the action in the Office of the Secretary of State. The existence of any advisory council may be extended as many times as necessary.