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An intergovernmental organization or international governmental organization (IGO) is an organization composed primarily of sovereign states (referred to as ''member states''), or of other intergovernmental organizations. Intergovernmental organizations are often called international organizations, although that term may also include international nongovernmental organization such as international nonprofit organizations or multinational corporations. Intergovernmental organizations are an important aspect of public international law. IGOs are established by treaty that acts as a charter creating the group. Treaties are formed when lawful representatives (governments) of several states go through a ratification process, providing the IGO with an international legal personality. Intergovernmental organizations in a legal sense should be distinguished from simple groupings or coalitions of states, such as the G8 or the Quartet. Such groups or associations have not been founded by a constituent document and exist only as task groups. Intergovernmental organizations must also be distinguished from treaties. Many treaties (such as the North American Free Trade Agreement, or the General Agreement on Tariffs and Trade before the establishment of the World Trade Organization) do not establish an organization and instead rely purely on the parties for their administration becoming legally recognized as an ''ad hoc'' commission. Other treaties have established an administrative apparatus which was not deemed to have been granted international legal personality. ==Types and purpose== Intergovernmental organizations differ in function, membership and membership criteria. They have various goals and scopes, often outlined in the treaty or charter. Some IGOs developed to fulfill a need for a neutral forum for debate or negotiation to resolve disputes. Others developed to carry out mutual interests with unified aims to preserve peace through conflict resolution and better international relations, promote international cooperation on matters such as environmental protection, to promote human rights, to promote social development (education, health care), to render humanitarian aid, and to economic development. Some are more general in scope (the United Nations) while others may have subject-specific missions (such as Interpol or the International Organization for Standardization and other standards organizations). Common types include: * Worldwide or global organizations - generally open to nations worldwide as long as certain criteria are met. This category includes the United Nations (UN) and its specialized agencies, the Universal Postal Union, Interpol, the World Trade Organization (WTO), the World Customs Organization (WCO), World Nature Organization (WNO), and the International Monetary Fund (IMF). * Regional organizations - open to members from a particular region or continent of the world. This category includes the Council of Europe (CoE), European Union (EU), Energy Community, NATO, Organization for Security and Co-operation in Europe, African Union (AU), Organization of American States (OAS), Association of Southeast Asian Nations (ASEAN), Union of South American Nations, Asia Cooperation Dialogue (ACD), and Pacific Islands Forum. * Cultural, linguistic, ethnic, religious, or historical organizations - open to members based on some cultural, linguistic, ethnic, religious, or historical link. Examples include the Commonwealth of Nations, Arab League, Organisation internationale de la Francophonie, Community of Portuguese Language Countries, Latin Union, Turkic Council, International Organization of Turkic Culture, Organisation of Islamic Cooperation, and Commonwealth of Independent States (CIS). * Economic organizations - based on economic organization. Some are dedicated to free trade, the reduction of trade barriers (the World Trade Organization) and International Monetary Fund. Others are focused on international development. International cartels, such as OPEC, also exist. The Organisation for Economic Co-operation and Development was founded as an economics-focused organization. An example of a recently formed economic IGO is the Bank of the South. * Educational organizations - centered around tertiary level study. Academy of European Law offers training in European law to lawyers, judges, barristers, solicitors, in-house counsel and academics. EUCLID (university) chartered as a university and umbrella organization dedicated to sustainable development in signatory countries and United Nations University efforts to resolve the pressing global problems that are the concern of the United Nations, its Peoples and Member States. * Health and Population Organizations- based on the common perceived health and population goals and to address those challenges collectively. An example is the intergovernmental partnership for population and development"(Partners in Population and Development ) Some organizations, such as NATO, have collective security or mutual defense provisions. The Union of International Associations publishes an annual directory of organizations and provides ancillary information on most international organizations, both intergovernmental and non-governmental. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「intergovernmental organization」の詳細全文を読む スポンサード リンク
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