Hello! I know, the CRJ is not able to fly an RNP approach. But what this mean in detail? If I look to approaches in europe, the most GPS approaches are declaird as "RNP" approaches but if you look to the vertical profile like in the attachement, there are 3 options:   "LPV" (very new, only in few new aircrafts) "LNAV/VNAV" (the standard like in an A320) "LNAV" (all other airctafts without special approach guidance but LNAV)   all this with different minimas.