National Congress of Argentina sessions span is from March 1 to November 30; the President of Argentina is entitled to convene extraordinary sessions during the recess, if needed. Senators and deputies enjoy parliamentary immunity during their mandates, which may be revoked by their peers if a senator or deputy is caught "in flagrante", in the midst of committing a crime. The Congress is in charge of setting taxes and customs, which must be uniform across the country. It rules the Central Bank of Argentina, manages internal and external debt payment, and the value of national currency (currently the Argentine peso). It rules the legal
Gaucho (currency) without any initial plans to establish a common currency. Later, in 1994, Brazil established the Brazilian real, still in use, putting an end to the frequent currency changes that took place in the country throughout the 1980s and the 1990s. On such panorama, the Gaucho plan has been virtually shelved. On 17 July 1987, in the city of Viedma (Río Negro, Argentina), President Raúl Alfonsín of Argentina and President José Sarney of Brazil signed Protocol Number 20 which stated the following: Considering: Viedma, 17 July 1987 Gaucho (currency) The Gaucho was the name of a currency intended to be used