80That said, where, in a situation in which action of the Member States is not entirely determined by EU law, a national provision or measure implements EU law for the purposes of Article 51(1) of the Charter, national authorities and courts remain free to apply national standards of protection of fundamental rights, provided that the level of protection provided for by the Charter, as interpreted by the Court, and the primacy, unity and effectiveness of EU law are not thereby compromised (judgments of 26 February 2013, Melloni, C‑399/11, EU:C:2013:107, paragraph 60, and of 26 February 2013, Åkerberg Fransson, C‑617/10, EU:C:2013:105, paragraph 29).
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