It can do a basic RNP approach, but not one marked “RNP/AR” (The AR stands for “authorization required”) AR approaches have extremely tight lateral and vertical performance requirements that neither the autopilot nor FMS of the real CRJ is capable of meeting.   On US approach charts, if an approach is AR, it will appear as part of the approach name at the top of the plate. On Canadian charts, the “Authorization Required” notice appears as part of the text description. I think this is a