SDCL § 32-10-20: Proportionally registered interstate fleet vehicles--Intrastate vehicles--Vehicles operating under authority of public utilities commission.

Proportionally registered interstate fleet vehicles registered and identified under § 32-10-17 shall be deemed to be fully licensed and registered in this state for any type of movement or operation, except that, in those instances in which a grant of authority is required for intrastate movement or operation, no such vehicle shall be operated in intrastate commerce in this state unless the owner or operator thereof has been granted intrastate authority or rights by the South Dakota Public Utilities Commission and unless said vehicle is being operated in conformity with such authority or rights.