Speciale Functies

1. NLR gedelegeerde in de “International Astronautical Federation (IAF) General Assembly”
2. Nederlandse ruimtevaartgedelegeerde in NATO Adviesgroep (SG 32)
3. Lid “Planning Commission” van de “Pan-African Conference on Information and Communication Technology for Agriculture and the Environment” , United Nations Economic Commission for Africa (ECA), FAO, UNEP, UNITAR, WMO, WHO, UNESCO, CGIAR, EU
4. Lid “Programme Committee “ van de UN/IAF Workshop, United Nations Office for Outer Space Affairs (UNOOSA)
5. Organisator UN/IAF Workshop 1999
6. Lid “Scientific Committee” en liaison met Commission I van de “International Society for Photogrammetry and Remote Sensing” (ISPRS), ISPRS congres organisatie 2000
7. Lid van de “Programma Adviesgroep Land” van de voormalige Beleidscommissie Remote Sensing (BCRS)
8. Lid van de Space and Society Administrative Committee van IAF