77In addition, since the interpretation which, in the exercise of the jurisdiction conferred upon it by Article 267 TFEU, the Court gives to a rule of EU law clarifies and defines where necessary the meaning and scope of that rule as it must be, or ought to have been, understood and applied from the time at which it entered into force (see, to that effect, judgments of 27 March 1980, Denkavit italiana, 61/79, EU:C:1980:100, paragraph 16, and of 18 November 2021, État belge (Pilot training), C‑413/20, EU:C:2021:938, paragraph 53), it must be found that an ordinary court is required, in order to ensure the full effectiveness of the rules of EU law, to disregard, in a dispute before it, the rulings of a national constitutional court which refuses to give effect to a judgment given by way of a preliminary ruling by the Court of Justice, even where that judgment does not arise from a request for a preliminary ruling made, in connection with that dispute, by that ordinary court.
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