Outside of the U.S., there are GPS-based precision approaches. I say GPS-based because they all require SBAS (space-based augmentation systems, like WAAS or EGN

Outside of the U.S., there are GPS-based precision approaches. I say GPS-based because they all require SBAS (space-based augmentation systems, like WAAS or EGNOS) rather than being pure GPS systems. ICAO recognizes SBAS Cat I as a precision approach, and there are dozens of them in Europe (France, Austria at least).