Brunner and Others v. the European Union Treaty, p. 89. According to the Court, Germany’s membership in the Union and the rights and duties that follow therefrom have been defined in the Treaty so as to be predictable for the legislature and are enacted in the Act of Accession with sufficient certainty. Idem. The Court underlined that the interpretation of the Treaty might not have effects that are equivalent to an extension of the Treaty and that such an interpretation of enabling rules would not produce any binding effects for Germany. Idem, p. 105.