Turkey, a party to the 1947 General Agreement on Tariffs and Trade (GATT) and a member of the World Trade Organization (WTO) since 1995, implements free trade agreements in accordance with Article XXIV of the 1947 GATT. Under this article, Turkey could give its trading partners more favourable treatment within the framework of a customs union or free trade area, without extending this treatment to all WTO members, subject to certain conditions. Economists have tried to assess the extent to which free trade agreements can be considered public goods. First, they deal with a key element of free trade agreements, the system of on-board tribunals, which act as arbiters in international trade disputes. These serve as a clarification of existing statutes and international economic policies, as confirmed by trade agreements.  A free trade agreement (FTA) or treaty is an agreement contrary to international law establishing a free trade area between cooperating states. Free trade agreements, a form of trade pacts, set tariffs and tariffs on imports and exports by countries, with the aim of reducing or removing barriers to trade and thereby promoting international trade.  These agreements “generally focus on a chapter with preferential tariff treatment,” but they often contain “trade facilitation and regulatory clauses in areas such as investment, intellectual property, public procurement, technical standards, and health and plant health issues.”  Free trade agreements, which are free trade zones, are generally outside the multilateral trading system. However, WTO members must inform the secretariat when new free trade agreements are concluded and, in principle, the texts of free trade agreements are reviewed by the Committee on Regional Trade Agreements. Although a dispute in free trade areas is not the subject of litigation within the WTO`s dispute resolution body, “there is no assurance that WTO panels will comply and reject jurisdiction in a particular case.”  There are significant differences between unions and free trade zones. Both types of trading blocs have internal agreements that the parties enter into to liberalize and facilitate trade between them. The key difference between unions and free trade zones is their approach to third parties [lack of ambiguity needed]. While a customs union requires all parties to apply and maintain identical external tariffs on trade with non-parties, parties to a free trade area are not subject to such a requirement. Instead, they can set and maintain any customs regime for imports from non-parties, as they see as necessary.  In a free trade area without harmonized external tariffs, the parties will adopt a system of preferential rules of origin to eliminate the risk of trade diversion [necessary ambiguities].  The trade agreement database provided by the ITC market access map. Given that hundreds of free trade agreements are currently in force and are being negotiated (approximately 800 according to the rules of the intermediary of origin, including non-reciprocal trade agreements), it is important for businesses and policy makers to keep their status in mind. There are a number of free trade agreement custodians available at national, regional or international level. Among the most important are the database on Latin American free trade agreements, established by the Latin American Integration Association (ALADI) , the database managed by the Asian Regional Integration Center (ARIC) with information agreements concluded by Asian countries and the portal on free trade negotiations and agreements of the European Union.  The Market Access Card was developed by the International Trade Centre (ITC) to support companies, governments and market access researchers.