61In the absence of detailed procedural rules laid down by EU law for giving effect to a right, in accordance with settled case-law of the Court, it is for the national legal system of each Member State to lay down procedural rules to ensure the safeguarding of rights which individuals derive from EU law. Those rules must not, however, be less favourable than those governing similar domestic remedies (principle of equivalence) and must not render practically impossible or excessively difficult the exercise of rights conferred by EU law (principle of effectiveness) (see, to that effect, judgment of 5 April 2017, Marina del Mediterráneo and Others, C‑391/15, EU:C:2017:268, paragraph 32 and the case-law cited).
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