Teldorserious - I've been puzzled by that before so dug a little deeper and asked some questions. Apparently you need a type rating on one of the types operated out there in order to undertake the licence conversion checkride, you then do a type-rating on the aircraft you'll be operating.
All sounds a bit daft to me but I guess that's how they need to do it, good luck trying to solve the pilot shortage out there then!