EUREF
Regional Reference Frame Sub-Commission for Europe (EUREF) is the sub-commission of the International Association of Geodesy (IAG), part of the Sub-Commission 1.3 (Regional Reference Frames), under IAG Commission 1 (Reference Frames). EUREF deals with the definition, realization and maintenance of the European Geodetic Reference Frame. The goal of EUREF is to establish a unified geodetic datum (ETRS89) and a consistent network of reference stations (EPN) throughout Europe. EUREF was founded in 1987 at the IUGG General Assembly held in Vancouver.