Judgment_paragraph 61 · A-Rosa Flussschiff GmbH v Union de recouvrement des cotisations de sécurité sociale et d’allocations familiales d’Alsace (Urssaf), venant aux droits de l’Urssaf du Bas-Rhin and Sozialversicherungsanstalt des Kantons Graubünden (C-620/15)

61Having regard to the foregoing, the answer to the question referred is that Article 12a(1a) of Regulation No 574/72 must be interpreted as meaning that an E 101 certificate issued by the institution designated by the competent authority of a Member State pursuant to Article 14(2)(a) of Regulation No 1408/71 is binding on both the social security institutions of the Member State in which the work is carried out and the courts of that Member State, even where it is found by those courts that the conditions under which the worker concerned carries out his activities clearly do not fall within the material scope of that provision of Regulation No 1408/71.