I think the one you are refering to is this. ATPL(A) holders who have a minimum of 1500 hours flying experience as PIC or Co-pilot on Multi-pilot aeroplanes (or single-pilot aeroplane operated by 2-pilots according to operational requirements). You will have to look at lasors.
In short, what they are saying is that, you need a type rating on your faa atp(not cpl), with 1500 hours on multi-pilot aeroplanes.
Regards
DMan