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A specific text file containing the seasonal schedule must be used for the notification. Detailed description of the file format and the technical specifications required can be found in the document entitled “File Format for submission of HFBC requirements”, available at the ITU / HFBC web site.
Administrations must submit their whole seasonal schedule. The Bureau cannot accept submissions containing only amended requirements.
The Bureau takes the requirements from the previous corresponding season and incorporates them into the current seasonal schedule. This action could be undertaken only once, and then the previously submitted data is suppressed from the database.