The International Amateur Radio Union (IARU) is a federation of national associations of certified radio amateurs, representing over 150 countries and separate territories around the world.

The three IARU Regions are organised to broadly mirror the structure of the International Telecommunications Union (ITU) and its related regional telecommunications organisations. The Regions comprise:
- IARU Region 1: Europe, Africa, the Middle East and Northern Asia
- IARU Region 2: The Americas
- IARU Region 3: Asia-Pacific

The IARU represents the interests of the Amateur Radio Service worldwide to relevant international organisations, promoting the interests of amateur radio and seeking to protect and enhance its spectrum privileges.

IARU Region 1 initiated changes to CEPT Licence and CEPT Novice Licence

Free and unbureaucratic short-term cross-border amateur radio operation is set to be expanded to more countries outside Europe: Non CEPT countries can now join the framework of the CEPT licence and the CEPT Novice licence in a much simplified process thanks to an initiative of IARU Region 1 to change the relevant recommendations. At the same time the syllabus for the Harmonized Amateur Radio Examination Certificate (HAREC) has been amended to include questions on the Radio Amateur Code of Conduct and on operating practices. The changes were approved by the Working Group Frequency Management (WGFM) of CEPT and are now in force.

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