Consensus The United Nations Committee on the Peaceful Uses of Outer Space and its Scientific and Technical and Legal Subcommittees operate on the basis of consensus, i.e. all delegations from member States must agree on any matter, be it treaty language before it can be included in the final version of a treaty or new items on Committee/Subcommittee's agendas. One reason that the U.N. space treaties lack definitions and are unclear in other respects, is that it is easier to achieve consensus when language and terms are vague. In recent years, the Legal Subcommittee has been unable to achieve consensus on discussion of a new comprehensive space agreement (the idea of which, though, was proposed just by a few member States). It is also unlikely that the Subcommittee will be able to agree to amend the Outer Space Treaty in the foreseeable future. Many space faring nations seem to believe that discussing a new space agreement or amendment of the Outer Space Treaty would be futile and time-consuming, because entrenched differences regarding resource appropriation, property rights and other issues relating to commercial activity make consensus unlikely. National law Space law also encompasses national laws, and many countries have passed national space legislation in recent years. The Outer Space Treaty gives responsibility for regulating space activities, including both government and private sector, to the individual countries where the activity is taking place. If a national of, or an organization incorporated in one country launches a spacecraft in a different country, interpretations differ as to whether the home country or the launching country has jurisdiction. The Outer Space Treaty also incorporates the UN Charter by reference, and requires parties to ensure that activities are conducted in accordance with other forms of international law such as customary international law (the custom and practice of states). The advent of commercial activities like space mining, space tourism, private exploration, and the development of many commercial spaceports, is leading many countries to consider how to regulate private space activities. The challenge is to regulate these activities in a manner that does not hinder or preclude investment, while still ensuring that commercial activities comply with international law. Developing nations are concerned that the spacefaring nations will monopolize space resources. Royalties paid to developing countries is one reason the United States has not ratified the United Nations Convention on the Law of the Sea, and why some oppose