Here is my first question to the experts: How this is with unstamped registration plates with a journey to the registration office and back, I have read in detail here and know about it. My question is however now another and I have the following problem: I wanted tomorrow with my registered car to the registration office and this log-out and in the same step I register a new car on exactly the same registration number, this is possible with us, while keeping the old identification number Now they are stamped again. May I screw the license plates back to my old car to drive home with them. The license plates are actually unstamped now, because cars are deregistered. But since new cars are registered again, seals are on it, so nevertheless registered, but for other vehicles. Can I do this or do I make myself punishable?