The intergovernmental agreement allows space station partner states to extend their national competences in space, so that the elements they have made available (e.g. B laboratories) are treated in the same place as the territories of the Partner States. The common philosophy of this approach is that goods and services are exchanged by space agencies without exchanging funds. The exchange system significantly reduced technical and financial risks and supported the process of standardization and collaboration in the space station program. The terms of each exchange or sale are determined on a case-by-case basis by the parties to the transaction and must comply with the general legal framework of the space station. The legal framework of the International Space Station recognizes and goes further with the basic rules of liability for space activities set out in international space treaties such as the Liability Convention (1972). The Intergovernmental Agreement on the International Space Station, often referred to as the “IGA”, is an international treaty signed on 29 January 1998 by the fifteen governments involved in the space station project.* This key document at the governmental level “establishes a framework for long-term international cooperation based on a genuine partnership for the detailed planning, development, operation and use of a permanent inhabited space. Civilian space station for peaceful purposes.