Article 12
1. The customs office authorised to accept the export declaration shall ensure that the goods presented are those described on the export licence and that a reference is made to that licence in box 44 of the export declaration if a written declaration is required. 2. If a written declaration is required then the licence must be attached to copy 3 of the single administrative document and accompany the good to the customs office at the point of exit from the customs territory of the Union. Where copy 3 of the single administrative document is made available to the exporter or his representative, the licence shall also be made available to him for use on a subsequent occasion.