No person may operate an apportionable vehicle in this state unless at the time of operation the vehicle is registered under the IRP, is issued a valid vehicle registration trip permit, is exempt under a reciprocity agreement, or is entering or leaving Wisconsin to have or after having had special equipment, or a body constructed or installed, or for repair as provided by s. 341.40, Stats.
Wis. Admin. Code Department of Transportation Trans 152.105