Judgment_paragraph 25 · Consiglio nazionale dei geologi v Autorità garante della concorrenza e del mercato and Autorità garante della concorrenza e del mercato v Consiglio nazionale dei geologi (C-136/12)

25It should be pointed out, first, that in so far as no appeal lies against the decisions of a national court, such a court is, in principle, obliged to make a reference to the Court of Justice under the third paragraph of Article 267 TFEU where a question relating to the interpretation of the TFEU is raised before it (Case C-337/95 Parfums Christian Dior [1997] ECR I-6013, paragraph 26).