33In that regard, it should be noted, in the first place, that, in the absence of harmonisation of national enforcement mechanisms, the details of their implementation are governed by the internal legal order of the Member States by virtue of the principle of procedural autonomy of those States. Nevertheless, the means of implementation must meet two conditions, namely that they are no less favourable than those governing similar domestic actions (principle of equivalence) and that they do not make it impossible or excessively difficult to exercise the rights conferred by EU law (principle of effectiveness) (judgment of 26 June 2019, Kuhar, C‑407/18, EU:C:2019:537, paragraph 46 and the case-law cited).
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