Since January 2009 VDE Institute cooperates with European Customs Authorities to combat counterfeiting of VDE's certification marks. With immediate effect European customs shall request valid VDE certificates for each VDE Mark visible on a product (and/or plug, cable etc.) when goods are imported into the European market. Therefore customs documentation should contain these certificates in order to avoid unnecessary delays during customs clearance. The missing of a necessary VDE certificate may lead to the stop of the importing process.