In April 2003, the EU Accession Agreement was officially signed for the Czech Republic, Estonia, Cyprus, Hungary, Latvia, Lithuania, Malta, Poland, Slovenia and the Slovak Republic. These countries are destined to become EU members in May 2004. As part of the “acquis communautaire”, participation in the new version of the exchange rate mechanism (ERM II), and subsequently in the European Monetary Union (EMU) is obligatory for all new EU members (no opt-out clause is available). Therefore, the question today for the accession countries is no longer whether or not to enter the eurozone but rather the time horizon when the entry should happen. Journal of Economic Literature (JEL) code: E42, E58, F33.