SDCL § 1-1-21: Governor's proclamation required for assumption of jurisdiction.

Except as to criminal offenses and civil causes of action arising on any highway, as defined in chapter 31-1, the jurisdiction provided for in § 1-1-18 is not assumed or accepted by this state, and §§ 1-1-18 and 1-1-20 is not considered in effect, unless and until the Governor of the State of South Dakota, if satisfied that the United States of America has made proper provision for the reimbursement to this state and its counties for the added costs in connection with the assumption of said jurisdiction, has issued a proper proclamation duly filed with the secretary of state declaring the said jurisdiction to be assumed and accepted.