South Dakota Codified Laws
Chapter 30 - Emergency Interim Succession To Office
Section 1-30-9 - Enemy attack required for exercise of powers by emergency successors--Legislative termination of powers.

1-30-9. Enemy attack required for exercise of powers by emergency successors--Legislative termination of powers.
Officials authorized to act as Governor pursuant to this chapter, emergency interim successors are empowered to exercise the powers and discharge the duties of an office as herein authorized only after an attack upon the United States, as defined herein, has occurred. The Legislature, by concurrent resolution, may at any time terminate the authority of said emergency interim successors to exercise the powers and discharge the duties of office as herein provided.

Source: SL 1961, ch 285, ยง8.