It is possible to speak of international administration only if an international entity is truly exercising functions equivalent to States. While such cases are rare, as Joseph Weiler emphasized in a different context, they do exist. One such case is the International Seabed Authority, which exercises legislative as well as executive functions concerning the international seabed (Area) and its resources. Furthermore, the legal regime on the international seabed comprises a fully elaborated system for the settlement of disputes available to public and private actors involved in the exploration and exploitation of mineral resources in the Area. The functions assigned to IMO and some fisheries organizations have not quite reached this level. Nevertheless one can observe that these organizations, too, prescribe binding rules, at least de facto. However, they lack the jurisdiction to enforce such rules directly; in that respect they are relying on the enforcement of States to enforce such rules acting under different capacities such as flag States or port States. One may consider these legal regimes as belonging to a multilevel system (Mehrebenensystem) where the prescriptive and executive functions are being vested in different entities.