Whilst reading through the motivation material for stage 1 I found some information that seems to be contradictory, but maybe i'm just missing something completely.
On page 5 it says: "On January 20th 2005 the first phase of the Northern Oceanic Transition Area (NOTA) was established within the Shanwick Oceanic Control Area to the North of the Shannon FIR/UIR. Shannon Area Control Centre has been delegated to provide air traffic services within the NOTA."
Then later: "As mentioned earlier the first phased of the NOTA was established in early 2005 within this airspace. This area that NATS is responsible for is known as the Shanwick Oceanic Control Area and the responsibility for providing ATC services to aircraft flying in this airspace is that of the Oceanic Control Centre at Prestwick."
So i'm confused. Everything i have read so far says that its at Prestwick where they have responsibility for flights in the NOTA, what is the Shannon Area Control reference all about?