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.

North American Nets activating for Hurricane Harvey

As Hurricane Harvey approaches the Texas coast in the USA, various nets are activating as part of the emergency response. In addition to tropical and hurricane-force winds along the Texas coast and further inland, the main concern with this storm is heavy rain and flooding in an area which has not has a hurricane make landfall for 9 years.

Many of the frequencies used will be outside Region 1 allocations in 80m and 40m but there are some in 20m which may suffer from European QRM if operators are not careful.

The US National Hurricane Centre station WX4NHC will activate at 1900UTC 25th August on 14.325 MHz

The Hurricane Watch Net is operating from 1500 UTC on their daytime frequency of 14.325.00 MHz. When the 20 meter band closes they are likely to move over to 7.268.00 MHz or from 0000 UTC.

VOIP Hurricane Net likely to activate at 2 PM EDT/1800 UTC on Friday 25th August

The Southern Territory SATERN Net will activate for one day (so far) on Saturday, 26 August 2017 during local daylight hours on its regular frequency of 7.262 MHz.

All radio amateurs are requested to listen carefully before transmitting to avoid QRM to Emergency activities.