Initially, such a chamber could be an advisory body, with the national parliaments maintaining their competencies; later, on the basis of an intergovernmental treaty, it must become a real parliamentary control and decision-making body, made up of national parliaments’ delegated members. Of course, because a treaty of this kind would mean extensive transfer of sovereignty to European intergovernmental institutions, it would need direct popular legitimization through referendums in all member states, including (and especially) Germany.
欧洲议事厅可以先以咨询机构的形式存在，各国议会依然保有各自职能。然后，在共同政府条约的基础上，欧洲议事厅必须成为名副其实的议会控制和决策机构，由各国议会代表成员组成。当然，由于此类条约意味着主权向欧洲共同政府机构的大规模转移，因此需要通过所有成员国（特别是德国）公投实现直接的、广受人民支持的合法化。