The Preface (Space services) describes the contents and the layout of the BR IFIC Circular published in CD-ROM format. It is also for use in consulting copies of the Space Master International Frequency Register – SMIFR when provided in electronic form (srs_all.mdb) or the IFIC data (ificxxxx.mdb) or any other document of the Radiocommunication Bureau. 

The full version of the PREFACE in six languages is available on the BR IFIC (Space services) CD-ROM and on-line.  The Preface is published and updated regularly on this website.

- Table of contents of the Preface and details about updates.