C-5/14Kernkraftwerke Lippe-Ems GmbH v Hauptzollamt Osnabrück

Domstolens egne nøkkelord

Reference for a preliminary ruling — Article 267 TFEU — Interlocutory procedure for review of constitutionality — Examination of whether a national law complies with both EU law and with the Constitution of the Member State concerned — Discretion enjoyed by a national court to refer questions to the Court of Justice for a preliminary ruling — National legislation levying a duty on the use of nuclear fuel — Directives 2003/96/EC and 2008/118/EC — Article 107 TFEU — Articles 93 EA, 191 EA and 192 EA.

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