SEPA for cards: implementation challenges Certainly, on the way towards new schemes – whatever their origin is – and the realisation of SEPA for cards, some challenges persist. The SEPA integrated market requires a common legal framework, which would allow for example the existence of a single contract per scheme usable across Europe.
As I already mentioned, the ongoing process of giving the EU a constitution is also linked, at least in part, to enlargement. Within the realm of central banking, the Eurosystem has been engaged since 1999 in a constructive dialogue with the central banks of accession countries.