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 board the Deutsche Mark from 1992 to 1999 when it switched to fixing to the Euro at par. The peg to the Euro was upheld until January 2011 with Estonia's adoption of the Euro. This policy is seen as a mainstay of that country's subsequent economic success (see Economy of Estonia for a detailed description of the Estonian currency board). Argentina abandoned its currency board in January 2002 after a severe recession. To some, this emphasised the fact that currency boards are not irrevocable, and hence may be abandoned in the face of speculation by foreign exchange traders. However, Argentina's system