The Twenty-First Session of the ICG/PTWS was held at the Telstra Dome, Australia, 3-5 May 2006. Intersessional Working Group sessions took place on 1-2 May 2006. WG Reports are posted.

The first-ever region-wide test of the Pacific Tsunami Warning System was carried out over 16 and 17 May. Sponsored by UNESCO's Intergovernmental Oceanographic Commission (IOC) which established the system over 40 years ago, the exercise aimed to increase preparedness, evaluate response capabilities in each country and improve coordination throughout the region.