South dakota constitution
Article III: legislative department
Section 1

This section shall not be construed so as to deprive the Legislature or any member thereof of the right to propose any measure. The veto power of the Executive shall not be exercised as to measures referred to a vote of the people. This section shall apply to municipalities. The enacting clause of all laws approved by vote of the electors of the state shall be: "Be it enacted by the people of South Dakota." The Legislature shall make suitable provisions for carrying into effect the provisions of this section.