They say that the ultimate responsibility for enforcing judgments is the state.
so what´s the problem? since for example Italy has agreed that this court is above national law any ruling of this court does actually become Italian law. don´t get me wrong but after this decision it HAS BECOME Italian law which they have to enforce. so if italy refuses to enforce it they would be braking their own law. thats why i said they would “enforce” it without a blink of an eye because simple as long italy doesn´t win a battle in a european court it´s not even their problem any more. in this case official Italian politicians can grieve about the ruling (or as said are free to battle it in a court again) as long as they want to earn some public votes. but they shure know (even if they don´t admit it) that they have no other choice (after all this vote grabing because of the understandable public outrage is done) than to “silently” enforce this law. so yes official Italy will pay and enforce this fine (quite but “voluntary”) of course only if they lose the court battle (which they definitely secretly started as soon the EU court has ruled this way). this is not even buisness of the EU. it would only become buisness of the EU if (officially) Italy really would dare to say no and there for breaking their own law (btw. suprise suprise this was never said, guess why?) we don´t accept this ruling (even if it´s written in our own book of national law) because only then they would have a good chance to really get kicked out of EU (because 26 states are shure not willing that one state destroys everything for what they have worked for in the last 20+ years). But Italy would NEVER let this happen.