to the home pages of the supporting organisations:
the International Astronomical Union,
the International Union of Radio Science,
the Committee on Space Research.
Spectrum management for the passive services at the national level in the U.S. is taken care of by CORF, the Committee on Radio Frequencies, operating under the auspices of the U.S. National Academy of Sciences and supported by the U.S. National Science Foundation (NSF) and U.S. National Aeronautics and Space Administration (NASA). In Europe, CRAF, the Committee on Radio Astronomy Frequencies is a committee of the European Science Foundation that represents the radio astronomy community and serves as a liaison between the CEPT and the community. In the Asia Pacific region, RAFCAP, the Radio Astronomy Frequency Committee in the Asia Pacific was established in 2001.