Jusqu'à leur adoption de l'euro, ils participeront à l'Union économique et monétaire au titre d’États membres faisant l’objet d’une dérogation, et traiteront la question de leurs taux de change comme une préoccupation commune.
Upon accession, new Member States will be expected to coordinate their economic policies and will be subject to the provisions of the Stability and Growth Pact and the Statute of the European System of Central Banks. They are also committed to complying with the criteria laid down in the Treaty in order to be able to adopt the euro. Until they adopt the euro, they will participate in Economic and Monetary Union as a Member State with a derogation and will treat the exchange rate of their currency as a matter of common concern.