Международный союз радиолюбителей

International confederation of organizations for amateur radio operators
infobox Organization
|name = International Amateur Radio Union
|image = IARU Logo (cleaned up). png
|image border =
|size = 200px
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|abbreviation = IARU
|formation = 1925
|extinction =
|type = International nongovernmental organization (INGO)
|status =
|purpose = Advocacy
|headquarters = Newington, Connecticut, US
|location =
|region served = Worldwide
|membership = 172 national member societies
|language = English
|leader title = President
|leader name = Tim Ellam, VE6SH The Congress was attended by representatives of 23 countries in Europe, Americas, and Asia. A constitution for the IARU was adopted on April 17, and the formation of the International Amateur Radio Union was ratified on April 18, 1925. In the current era, this is the date (April 18) on which World Amateur Radio Day is celebrated.

The IARU has an elected President and Vice President, an appointed Secretary and other officials (including regional representatives) forming an Administrative Council. These office holders are presently Timothy Ellam, VE6SH (Canada), President; Ole Garpestad, LA2RR (Norway), Vice President; and Joel Harrison, W5ZN (United States), Secretary. The IARU International Secretariat (IARUIS) is operated by a member society after election by members. Currently, the American Radio Relay League (ARRL) operates the IARUIS from its headquarters in Newington, Connecticut, US.

The IARU is organised into three regions, named Region 1, Region 2, and Region 3. These regions correspond to the regulatory regions used by the International Telecommunication Union. Each region has an Executive Committee, typically composed of a President, Vice President, Secretary, Treasurer, and several Directors. These regional officers are elected by representatives from the member societies at triennial regional conferences. Coordinators may be appointed by the Executive Committee of their region to support particular areas within the region, or to promote certain amateur radio activities within the region. All three regions have appointed Coordinators for Amateur Radio Direction Finding, emergency communications, monitoring for electromagnetic interference, and radio propagation.

The Global Amateur Radio Emergency Communications Conference or "GAREC" is a yearly conference held by the International Amateur Radio Union for discussion of amateur radio operation during natural disasters and other emergencies with the motto, "Saving lives through emergency communications". GAREC was first held in Tampere, Finland in 2005, coinciding with the adoption of the Tampere Convention, a globally binding emergency communications treaty that had been signed in Tampere in 1998. In later conferences, the venue has attempted to rotate in sequence through ITU Regions 1, 2 and 3 (though not necessarily in that particular order).

The IARU organises and promotes radiosport activities throughout the world. The IARU promulgates the rules used for high speed telegraphy and sponsors regional and world championships. The IARU also promulgates the rules used by most competitions in amateur radio direction finding, including IARU sponsored regional and world championships. The IARU also sponsors the annual IARU HF World Championship in amateur radio contesting. The IARU does not directly administer any of these radiosport events, but authorises and sponsors them through host organisations.

The IARU maintains a radio station at its headquarters in Newington, Connecticut. Its callsign is NU1AW. As an amateur radio station licensed by the U. S. Federal Communications Commission the "1" stands for its location in the New England area. "NU" was taken from the pre 1928 era when amateurs made up their own prefixes, and informally used these letters to show they were in "North America—USA". The "AW" suffix represents the connection with the American Radio Relay League, whose own station is W1AW. NU1AW is frequently active during amateur radio contests. For many years the IARU has issued the Worked All Continents certificate to amateurs who contact fellow hams in the six permanently populated continental areas of the world. Special awards and endorsements for various bands and modes are also available.