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.

Date for Global Simulated Emergency Test has changed

The date for this event, sponsored by IARU Region 1, has been altered to coincide with World Amateur Radio Day on Saturday, April 18th. The theme for the day of "Amateur Radio: Your Resource in Disaster and Emergency Communication" is an ideal opportunity to showcase the work of emergency communications groups around the world.

The timing of the event remains at 1100-1500 UTC but in a change for this and future events, the focus will be on generating and relaying messages in a common format across country borders rather than the information gathering about capabilities which has taken place in the past.