S.D. Const. art. III, § 31
In addition to the provisions of Article IV, § 3, the Legislature may be convened in special session by the presiding officers of both houses upon the written request of two-thirds of the members of each house. The petition of request shall state the purposes of the session, and only business encompassed by those purposes may be transacted.
History: Amendment proposed by SL 1990, ch 2, approved November 6, 1990.