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
Currency substitution currency substitution by adopting the US dollar as legal tender in 1904. This type of currency substitution is also known as de jure currency substitution. Currency substitution can be used semiofficially (or officially bimonetary systems), where the foreign currency is legal tender alongside the domestic currency. In literature, there is a set of related definitions of currency substitution such as external liability currency substitution, domestic liability currency substitution, banking sector's liability currency substitution or deposit currency substitution, and credit dollarlization. External liability currency substitution measures total external debt (private and public) denominated in foreign currencies of the economy. Deposit currency