Handy WAAS and RNAV (GPS) Approach Fact Sheets

You can find a couple of handy FAA fact sheets on WAAS and RNP Approaches (which most of us know as RNAV (GPS) approaches at the FAA website, here.

The WAAS fact sheet outlines the advantages of a WAAS-capable navigator.

Required Navigation Performance (RNP) Approaches (APCH) succinctly explains the different lines of minimums and provides helpful references to ACs, the AIM, etc.