27In that regard, it must be noted that, although it follows from the rules governing the procedure for identifying sites eligible for designation as SACs, set out in Article 4(1) of the Habitats Directive, that Member States have a margin of discretion when making their site proposals, the fact none the less remains that they must do so in compliance with the criteria laid down by the directive (see, inter alia, Case C‑67/99 Commission v Ireland EU:C:2001:432, paragraph 33). It follows that, where the results of the surveillance undertaken by the Member States pursuant to Article 11 of the directive give rise to the conclusion that those criteria can irretrievably no longer be met, the Member States must of necessity, under Article 4(1) of the directive, make a proposal for the adaptation of the list of SCIs seeking to make that list meet those criteria once again.
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