S.D. Codified Laws § 32-22-46
Emergency movement of national defense vehicles
The Division of Highway Patrol may allow the emergency movement of oversize and overweight vehicles at any time on any day over any public highway in the interest of national defense.
Source: SL 1963, ch 196; SL 1983, ch 335, § 28; SL 1987, ch 234, § 7; SL 1992, ch 372, § 17.