The tournament was played in three different stages (first, second and final rounds). In the , the 24 participants were divided in four groups of six teams each. A
single round-robin format was played within each group to determine the teams group position, the four best teams of each group (total of 16 teams) progressed to the next round. In the , the 16 teams were divided in two groups of eight teams. A
single round-robin format was played within each group to determine the teams group position, matches already played between teams in the were counted in this round. The six best teams of each group (total of 12 teams) progressed to the next round. In the , the 12 teams were allocated to semifinals for placement matches according to their group positions. First and second of each group played the semifinals, third and fourth played the 5th-8th semifinals and fifth and sixth played the 9th-12th semifinals. Winners and losers of each semifinals played a final placement match for 1st to 12th places. Source:FIVB ==Pools composition==