73It follows from settled case-law of the Court that it is solely for the national court before which the dispute has been brought, and which must assume responsibility for the subsequent judicial decision, to determine, in the light of the particular circumstances of the case, both the need for a preliminary ruling in order to enable it to deliver judgment and the relevance of the questions which it submits to the Court. Consequently, where the questions referred concern the interpretation or the validity of a rule of EU law, the Court is in principle bound to give a ruling. It follows that questions referred by national courts enjoy a presumption of relevance. The Court may refuse to rule on a question referred by a national court only where it appears that the interpretation sought bears no relation to the actual facts of the main action or its object, where the problem is hypothetical, or where the Court does not have before it the factual or legal material necessary to give a useful answer to the questions submitted to it (judgments of 16 June 2015, Gauweiler and Others, C‑62/14, EU:C:2015:400, paragraphs 24 and 25; of 2 October 2018, Ministerio Fiscal, C‑207/16, EU:C:2018:788, paragraph 45; and of 19 December 2019, Dobersberger, C‑16/18, EU:C:2019:1110, paragraphs 18 and 19).
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