Products complying with national approval are given the German Ü symbol, those conforming with European approvals are marked with the CE mark. The Ü symbol is marked both on the board element and on the delivery note, and contains at least the precise product description, the nominal thickness in addition to information on the manufacturing works. The CE mark requires further information, e.g. relating to the strength classes of the board is used, the gluing, the number of board layers in addition to the European Technical Approval number. The CE mark is marked on the product itself, on the label, the packaging or the accompanying papers.


 Example of Ü symbol and CE mark for cross laminated timber produced in accordance with technical approvals