The driver of a vehicle performing a test drive using a professional registration document is obliged to carry and present at the request of a competent authority:

According to the Road Traffic Act, a driver is required to carry and, upon the request of a control authority, present a document confirming that the vehicle is approved for road use. In the case of a test drive, it is the professional registration document which fulfils this function, legalising the driving of a not-yet-registered vehicle on public roads. Therefore, carrying this document during such a drive is mandatory.