First, the parties that signed a free trade area applicable to trade with non-parties to that free trade area at the time of the creation of that free trade area must not be higher or more restrictive than tariffs and other rules applicable in the same signatory countries prior to the creation of the free trade area. In other words, the creation of a free trade area to give preferential treatment to their members is legitimate under WTO law, but parties to a free trade area are not allowed to treat non-parties less favourably than before the creation of the territory. A second requirement under Article XXIV is that tariffs and other trade barriers must be eliminated primarily for all trade within the free trade area.  Overall, these agreements mean that, according to the government, about half of goods entering the United States are exempt from tariffs. The average import duty on industrial products is 2%. The market access card was developed by the International Trade Centre (ITC) to support companies, governments and market access researchers. The database, which is visible through the market access map online tool, contains information on tariff and non-tariff barriers in all active trade agreements that are not limited to those that are officially notified to the WTO. It also documents data on non-preferential trade agreements (for example. B generalized preference regimes). Until 2019, Market Access Map has provided downloadable links to text contracts and their rules of origin.  The new version of the Market Access Map, which will be released this year, will provide direct web links to relevant contract sites and connect to other ITC tools, particularly the rules of the original intermediary. It is expected to become a multi-purpose instrument to help companies understand free trade agreements and qualify for the original requirements under these agreements.
 The European Union is now a remarkable example of free trade. Member States form an essentially borderless unit for trade purposes, and the introduction of the euro by most of these countries paves the way. It should be noted that this system is governed by a Brussels-based bureaucracy, which has to deal with the many trade-related issues that arise between the representatives of the Member States. Economists have tried to assess the extent to which free trade agreements can be considered public goods.