Citizenship of the Mercosur
Citizenship of the Mercosur is granted to eligible citizens of the Southern Common Market member states. It was approved in 2010 through the Citizenship Statute and should be fully implemented by the member countries in 2021, when the program will be transformed in an international treaty incorporated into the national legal system of the countries, under the concept of "Mercosur Citizen".
Source: Wikipedia — Citizenship of the Mercosur (CC BY-SA 4.0)