51The Court has repeatedly held on that matter, in proceedings relating to Article 258 TFEU, that the notification required of the Member States, in accordance with the principle of sincere cooperation laid down in Article 4(3) TEU, is intended to facilitate the achievement of the Commission’s tasks, which consist, inter alia, under Article 17 TEU, in ensuring the application of the Treaties and of measures adopted by the institutions pursuant to them. That notification must contain sufficiently clear and precise information on the substance of the national rules which transpose a directive. Thus, notification, to which a correlation table may be added, must indicate unequivocally the laws, regulations and administrative provisions by means of which the Member State considers that it has satisfied the various requirements imposed on it by that directive. In the absence of such information, the Commission is not in a position to ascertain whether the Member State has genuinely implemented the directive in full. The failure of a Member State to fulfil that obligation, whether by providing no information at all, partial information or by providing insufficiently clear and precise information, may of itself justify recourse to the procedure under Article 258 TFEU in order to establish the failure to fulfil the obligation (see, to that effect, judgments of 16 June 2005, Commission v Italy, C‑456/03, EU:C:2005:388, paragraph 27, and of 27 October 2011, Commission v Poland, C‑311/10, not published, EU:C:2011:702, paragraphs 30 to 32).
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