Originally Posted by
Dan6681
I am flying from BOS-AMS-FCO. What do you do when changing from intl. to intra EU? Is it like international to domestic USA going the other way?
It's not intra-E.U. in your case but intra-Schengen as not all E.U. member countries are treaty to Schengen and not all Schengen countries are members of the E.U.
In your case, you clear
immigration at AMS but do not collect your bags (and clear them through customs) until you reach FCO.