Does that continental slot have to go to a country within that continent? Is that why you say 3 plus the 1 slots are available? or are there really 9 open slots left with a year plus to go?
Good to know, haven't seen that memo anywhere.
My reading of the qualification system is that a continental qualifier can only qualify NOCs from that continent. If that is the case, there are 4 more spots available to the US.