In the SEPA discussion, there is one concept which is quite confusing: sepa compliancy for cards. Looking at the sepa cards framework, one can deduce that a sepa compliant card is issued by a sepa compliant bank and that the brand is also sepa compliant. And it is also clear that sepa compliancy means that one must be able to use the card in one country as easily as in others.
Still, what does make a card sepa or SCF-compliant?
Visa doesn't worry too much. See this article. It simply opens up processing and all that and states that they do comply. That's quite pragmatic, and actually, no one can prove them wrong. For all the vague phrasings that are all around, they might even be right.