registracija vozila

1. (of a car or motorcycle) vehicle registration; registration renewal; valid registration
   Registracija vozila mi ističe sledećeg meseca. — My car registration expires next month.
   Za registraciju vozila prvo treba uraditi tehnički pregled. — To register the car you first need to pass the inspection.

In speech people usually just say registracija: produžiti registraciju means to renew the registration.