The regional economic integration is USA.

Regional Economic Integration in USA: Various types of regional trade agreements in USA are as follows

1. NAFTA: North American Free Trade Agreement (NAFTA) is a trade pact signed in 1992 that would gradually eliminate most of the tariffs and other trade barriers over products and services which pass between the United States, Canada, and Mexico. The pact would effectively create a free trade block among the three largest countries of North America.

2. CACM: Central American Common Market (CACM), Spanish Mercado Comun Centroamericano (MCCA) is an association of five Central American Nations which was formed to facilitate regional economic development through free trade and economic integration. It was established by the General Treaty on Central American Economic Integration signed by Guatemala, Honduras, El Salvador, and Nicaragua in December, 1960 and its membership was expanded to include Costa Rica in July, 1962. This association is headquartered in Guatemala city.

3. CARICOM: Caribbean Community (CARICOM), which was formerly known as Caribbean Community and commons Market, organization of Caribbean countries and dependencies was originally established as the Caribbean Community and Commons Market in 1973 by the Treaty of Chaguaramas. It replaced the former Caribbean Free Trade Association (CARIFTA), that became effective in 1968. Its main purposes are to promote economic integration and co-operation among its members, to ensure whether the benefits of integration are equitably shared and to co-ordinate the foreign policy.

4. Mercosur: Mercosur or Mercosul which is officially the common market of the South Latin American trade organization was established in 1991 to increase economic co-operation among the countries of South America. It is also commonly called as Mercosur or Mercosul from the Spanish and Portuguese names, respectively, for the organization. Its members include Argentina, Brazil, Paraguay and Uruguay whereas Bolivia, Chile, Colombia, Ecuador, Peru and Venezuela are its associate members.

5. CAN: The Andean Community is a customs union which the South American countries of Bolivia, Colombia, Ecuador and Peru, The trade block was called as the Andean Pact until 1996 and came into existence with the signing of the Cartagena Agreement in 1969. Its headquarters are located in Lima, Peru. The Andean Community has 98 million inhabitants who are living in an area of 4700,000 square kilometers, whose Gross Domestic Product amounted to US was $745.3 billion in 2005 and includes Venezuela, who was a member at that time. Its estimated GDP PPP for 2011 amounted to US $ 902.86 billion, excluding Venezuela.