The United States currently has a number of free trade agreements. These include multinational agreements such as the North American Free Trade Agreement (NAFTA), which covers the United States, Canada and Mexico, and the Central American Free Trade Agreement (CEFTA), which covers most Central American countries. There are also separate trade agreements with countries ranging from Australia to Peru. The second way in which free trade agreements are seen as public goods is related to the trend towards their “deepening”. The depth of a free trade agreement refers to the additional types of structural policies it covers. While older trade agreements are considered “flatr” because they cover fewer areas (such as tariffs and quotas), recent agreements deal with a number of other areas, from services to e-commerce to data localization. Since transactions between parties to a free trade agreement are relatively less onerous than transactions with non-parties, free trade agreements are generally considered to be excluded. Now that deep trade agreements will improve regulatory harmonization and increase trade flows with non-parties, thereby reducing the applicability of the benefits of the FTA, next-generation free trade agreements retain essential features of public goods.  First, the customs duties and other rules which are maintained in each of the signatory Parties to a free trade area and which apply at the time of the establishment of such a free trade area shall not be higher or more restrictive for trade with parties not party to such a free trade area than the customs duties and other rules applicable in the same signatory Parties before the establishment of a free trade area. the free trade area.
In other words, the creation of a free trade area for preferential treatment among its members is legitimate under WTO law, but parties to a free trade area should not treat non-parties less favourably than before the establishment of the area. A second requirement of Article XXIV is that tariffs and other barriers to trade must essentially eliminate all trade within the free trade area.  There are important differences between customs unions and free trade areas. Both types of trading blocs have internal agreements that the parties conclude to liberalize and facilitate trade between them. The key difference between customs unions and free trade areas is their treatment vis-à-vis third parties[clarification of concepts required]. While a customs union requires all parties to set and maintain identical external tariffs for trade with non-parties, parties to a free trade area are not subject to such a requirement. . . .