National
Member of the Swedish National Committee for Astronomy, 1988-date (secretary 1988-1995)
Member of Subcommittee 3 of the Physics Committee of the Swedish Natural Science Research Council (NFR) that annually evaluates the NFR astronomy grant applications, 1992-1995
Member of the Physics Committee (PuF) of the Swedish Natural Science Research Council (NFR), 1992-1995
Member of the board of Onsala Space Observatory, the Swedish National Facility for Radio Astronomy, 1993 - 1994
Member of NFR's Committee for the Swedish National Facilities, 1993-1995
Member of the Working Group for the Organization of Fysikcentrum, 1994 - 1995
Member of Fakultetsnämnden at Stockholm University, 1996 - date
International
Member of the Scientific Organizing Committee for the Conference "Circumstellar Matter", Edinburgh, United Kingdom, 1994