It's GAI 6075 (I've been told.....)
Mr Ripley's right, as it's not on-line yet the paper versions of it have been withdrawn
, although various adjeries still have the old paper copies on the bookshelf.
The scheme is administered by the good Wg Cdr who is PMA32 so your desk officer sounds like a good point of contact. You need to have less than 2 years to go in order to be able to register and "registration doesn't imply an implicit intention to leave".