SDCL § 1-2-9: Effective date of compact--Notice of ratification.

The compact is not binding or obligatory upon any of the contracting parties unless and until it has been ratified by the legislature of each state and approved by the Congress of the United States. The Governor of South Dakota shall give notice of the ratification and approval of the compact by the South Dakota Legislature to the Governor of the state of Nebraska and to the President of the United States.