Judgment of the Court of Justice in the case Amazon EU.
The Combined Nomenclature in Annex I to Council Regulation (EEC) No 2658/87 of 23 July 1987 on the tariff and statistical nomenclature and on the Common Customs Tariff, as amended by Commission Regulation (EC) No 861/2010 of 5 October 2010, must be interpreted as meaning that a reading device for electronic books which has a translation or dictionary function must, where that function is not its principal function, that being a matter for the national court to ascertain, be classified under subheading 8543 70 90 and not under subheading 8543 70 10.
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