National
Member of the Swedish National Committee for Astronomy, 1988 - date
Co-opted member of the board of Fysikcentrum, 1988
Member of the Board of Fysikcentrum, 1989
Member of Fakultetsnämnden, Stockholm University, 1990 - 1996
Member of Sektionsberedningen, Stockholm University, 1990 - 1993
Secretary of the Space Science Committee of the Swedish National Space Board, 1993 - date
Deputy Member of the Board of Forskning och Framsteg, 1995 - date
International
Deputy Member of the ESO Observing Programme Commmittee, 1988
Co-Investigator of ISOCAM, 1988 - date
Chairman of the ODIN Science Team, 1990 - date
Swedish Delegate to the Science Programme Committee of ESA, 1993 - date
Swedish Delegate to the Microgravity Programme Board of ESA, 1993 - date
Member of the Scientific Organizing Committee for the ESA/IRAM FIRST-Symposium "The Far Infrared and Submillimetre Universe", Grenoble, France, 1997