Associate members – Bolivia, Chile, Colombia, Ecuador and Peru – may also hold seats in the Parliament, but with no voting powers.

The creation of the Mercosur Parliament traces back to a 2002 process of establishing bodies and procedures aimed at the institutionalization and political autonomy of the bloc.

During the XXVII Meeting of Mercosur Heads of State on 17 December 2004, at Ouro Preto, Minas Gerais, the Common Market Council (CMC) instructed the Joint Parliamentary Commission (CPC) to write a protocol establishing the Mercosur Parliament, recommending its completion until the end of 2006.

In June 2008, the MPs held their first parliamentary session outside the Mercosur headquarters in Montevideo, on the city of San Miguel de Tucumán, where the XXXV Meeting of Mercosur Heads of State was also being held.

[1][2] Now, the deadline for every Mercosur member to hold direct elections was delayed to 2020.