73Therefore, in the absence of EU rules governing the matter, it is for each Member State, in accordance with the principle of the procedural autonomy of the Member States, to lay down the detailed rules of administrative and judicial procedures governing actions for safeguarding rights which individuals derive from EU law. Those detailed procedural rules must, however, be no less favourable than those governing similar domestic actions (principle of equivalence) and must not render practically impossible or excessively difficult the exercise of rights conferred by EU law (principle of effectiveness) (judgments of 6 October 2015, Orizzonte Salute, C‑61/14, EU:C:2015:655, paragraph 46, and of 21 December 2021, Randstad Italia, C‑497/20, EU:C:2021:1037, paragraph 58).
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