The Groningen AMS facility has been in operation since 1994. The AMS is based on a 2.5 MV tandetron accelerator. It is a fully automated mass spectrometer, dedicated to C-14 analysis with high precision (<0.5%). The maximum capacity is 3000 measurements annually. (14)Carbon is applied in dating (archaeology and earth sciences), in environmental research (e.g., carbon cycle) and in soil sciences.