36Furthermore, in accordance with the case-law of the Court, compliance with the Staff Regulations, which are binding in their entirety and directly applicable, is required of the Member States (judgments of 20 October 1981, Commission v Belgium, 137/80, EU:C:1981:237, paragraph 7, and of 10 May 2017, de Lobkowicz, C‑690/15, EU:C:2017:355, paragraph 42), including not only the national courts but also all the organs of the Member State concerned, including the administrative authorities (judgment of 19 December 2019, GRDF, C‑236/18, EU:C:2019:1120, paragraph 35).
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