On the ILS 1R approach chart at MCI there are two rings labeled "Enroute Facilities" and "Feeder Facilites". Does anyone know what these are? Also, on GPS approaches it says that GPS or RNP 0.3 required. Does anyone know what RNP 0.3 is? I've looked both up in the legend and the only one that it mentions is RNP but it doesn't give an explanation. Thanks in advance for the responses...