54In that regard, while it is indeed for the Member States to determine the rules on how to give effect to the derived right of residence which a third-country national must, in the very specific situations referred to in paragraph 51 of this judgment, be granted under Article 20 TFEU, the fact remains that those procedural rules cannot, however, undermine the effectiveness of Article 20 (see, to that effect, judgment of 10 May 2017, Chavez-Vilchez and Others, C‑133/15, EU:C:2017:354, paragraph 76).
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