The property search on Landwirt.com lets you specifically search for tractors with available vehicle documents. This filter is especially useful if you plan to use the tractor on public roads. Without valid documents, a tractor may only be operated on private land and undesignated field tracks. When purchasing, always check the documents carefully: does the chassis number match the plate on the tractor? Are all entries correct? Tractors with complete documents and a current technical inspection offer the greatest purchase security. For imported tractors, a COC document (Certificate of Conformity) should also be available.