Objective: to contact as many other amateurs, especially IARU member society HQ stations, around the world as possible using the 160, 80, 40, 20, 15 and 10 meter bands.
160, 80, 40, 20, 15 and 10 meters. No contest QSOS on 12, 17, 30 or 60 meters.
Source: http://www.arrl.org/iaru-hf-championship