As established by the Constitution of IACM, the World Congresses on Computational Mechanics (WCCM) rotate on a two year cycle between the three geographical regions of IACM.
https://iacm.info/scientific-events/wccm/

Welcome to the 16th World Congress on Computational Mechanics and 4th Pan American Congress on Computational Mechanics

The Canadian Association for Computational Science and Engineering welcomes you to the 16th World Congress on Computational Mechanics and 4th Pan American Congress on Computational Mechanics, to be held July 21-26, 2024 in Vancouver, British Columbia, Canada. The conference will be held in the award-winning Vancouver Convention Center, located on Vancouver’s downtown waterfront with a dramatic mountain backdrop.