An unbraked trailer with a permissible weight not exceeding 750 kg and which has not previously been registered abroad shall be presented by its operator for technical inspection no later than:
2 years after registration of this trailer and periodically thereafter at the latest 2 years .
6 years after registration of this trailer and then regularly at the latest within 4 years .
4 years after registration of this trailer and periodically thereafter at the latest 4 years .