German license plates with a yellow background indicate that a vehicle is registered for short-term use. These plates, formally known as Kurzzeitkennzeichen, are valid for a maximum of five days. They allow unregistered vehicles to be driven on public roads for purposes such as test drives, transfers to another location, or export out of the country. The plate displays the expiration date on the right-hand side, indicating the last day the vehicle is permitted to be operated.
The short-term registration system provides a flexible and efficient solution for temporary vehicle usage. This avoids the necessity of undergoing a full registration process for vehicles needed only for a brief period. Historically, this system has been essential for vehicle dealerships, mechanics, and individuals involved in buying, selling, or transporting vehicles. It ensures that vehicles without standard registration can be legally operated, promoting trade and mobility while maintaining road safety standards.