We at HoldeinePlakette have several locations. One of them is located in Weiterstadt near Darmstadt, the other at the testing center in Neu-Isenburg. But what do you actually need for the main inspection (HU)? In any case, testing organizations need your vehicle registration document or registration certificate part I. Any attachment certificates and general operating permits are also relevant. To make the on-site inspection faster, you can check your car parts for damage or malfunctions in advance. Are brakes or lights not working properly? Is the vehicle making strange noises? Then you should have the causes clarified in advance.