From the WIA, original post here.

Date : 14 / 11 / 2015 
Author : Jim Linton – VK3PC

The International Amateur Radio Union (IARU) is celebrating its 90th year of being the global voice of Amateur Radio.  The latest advocacy work by the IARU is at the World Radiocommunications Conference 2015 in Geneva.  Through the United Nations body, the International Telecommunications Union, it continues to look after the interests of the amateur service and amateur satellite service.

To celebrate its 90th year, all IARU member societies are encouraged to promote the occasion by a special callsign suffix ‘90IARU’.  About 50 stations are already activated by IARU member societies.  The WIA is now active with its VI90IARU callsign rostered to 12 members.  Both clubs and individual Advanced licence holders are encouraged to apply.

Those with a rostered slot will be given the requirements for using the VI90IARU callsign including the electronic logging.  QSL is via the Bureau.  Please email the date/s and time/s (UTC) you plan to use the callsign to nationaloffice@wia.org.au.

The roster starts with the St George Amateur Radio Society (November 13-16), with the weekend coinciding with both the Japan International DX Contest and the WIA VHF/UHF Field Day.  SGARS is using the VI90IARU call on the HF, VHF and UHF bands – any modes.  More information is at available via this Link.

The IARU has a handsome diploma available to those who contact 90IARU callsigns from 10 different countries, members of IARU.  Qualifying stations can get the free electronic diploma for QSOs between January 1 to December 31, 2015 – issued either as Mixed, CW, Phone or Digital.

The WIA will acknowledge all QSLs it receives for VI90IARU through the QSL Bureau.

See this Link for more information on R90IARU.