Judgment_paragraph 23 · Rohm Semiconductor GmbH v Hauptzollamt Krefeld (C-666/13)

23It must first be recalled that it is clear from the settled case-law of the Court that when the Court is requested to give a preliminary ruling on a matter of tariff classification, its task is to provide the national court with guidance on the criteria the implementation of which will enable the latter to classify the products at issue correctly in the CN, rather than to effect that classification itself, a fortiori since the Court does not necessarily have available to it all the information which is essential in that regard. In any event, the national court is in a better position to do so. However, in order to give the referring court a useful answer, the Court may, in a spirit of cooperation with national courts, provide that court with all the guidance that it deems necessary (see, inter alia, judgments in Data I/O, C‑370/08, EU:C:2010:284, paragraph 24 and the case-law cited, and in Data I/O, C‑297/13, EU:C:2014:331, paragraph 36 and the case-law cited).