The Third World Academy of Sciences (TWAS) has been chosen to host the secretariat of the InterAcademy Panel (IAP). The decision was made at the Conference of the World's Scientific Academies, "Transition to Sustainability in the 21st Century," held in Tokyo, Japan, in May. The purpose of the IAP, which was created in 1995, is to foster cooperation, networking and capacity-building among scientific academies and to strengthen the voice of academies in discussions of science-related issues in both national and international fora. IAP membership currently consists of 80 scientific academies worldwide. For the past five years, the secretariat has been located at The Royal Society in London. The relocation of the secretariat to Trieste has received strong support from Italian officials at all levels of government. Several sites are now under consideration for a permanent home for the IAP, which will be located with TWAS at the same site. Until the move takes place, the IAP secretariat will be housed in offices at the ICTP.