Guidelines are recomendations for member countries how to proceed in 3 main topics:
1. First guideline describes how to excange the observation data between networks established in different countries. To harmonieze this coross border cooperation there are some rules which should help to prepare the data streams for this communication links.
2. Each country uses own reference frame for geodesy and specially for calculation of reference station coordinates. To unify reference frame for whole EUPOS area is recomended to follow this guideline in calculation of reference station coordinates and services.
3. The quality of EUPOS services depends to a large extent on the appropriate GNSS reference station site selection and design. EUPOS member countries shall follow certain installation guidelines in order to guarantee the high quality of their national EUPOS networks.