272The Court thus held that any provision of a national legal system and any legislative, administrative or judicial practice which might impair the effectiveness of EU law by withholding from the national court having jurisdiction to apply such law the power to do everything necessary at the moment of its application to disregard national legislative provisions which might prevent directly applicable EU rules from having full force and effect are incompatible with the requirements which are the very essence of EU law (judgment of 4 December 2018, Minister for Justice and Equality and Commissioner of An Garda Síochána, C‑378/17, EU:C:2018:979, paragraph 36 and the case-law cited).
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