| I IPC | Tucson, Arizona (USA) | 1962 |
| II IPC | Utrecht (Netherlands) | 1966 |
| III IPC | Novosibirsk (USSR) | 1971 |
| IV IPC | Lucknow (India) | 1976 |
| V IPC | Cambridge (England) | 1980 |
| I IOPC | Reading (England) | 1980 |
| VI IPC | Calgary (Canada) | 1984 |
| II IOPC | Edmonton (Canada) | 1984 |
| VII IPC | Brisbane (Australia) | 1988 |
| III IOPC | Melbourne (Australia) | 1988 |
| VIII IPC | Aix-en-Provence (France) | 1992 |
| IV IOPC | Paris (France) | 1992 |
| IX IPC | Houston, Texas (USA) | 1996 |
| V IOPC | Santa Barbara (USA) | 1996 |
| X IPC | Nanjing (China) | 2000 |
| VI IOPC | Qinhuangdao (China) | 2000 |
| XI IPC | Granada (Spain) | 2004 |
| VII IOPC | Bariloche (Argentina) | 2004 |
| XII IPC/VIII IOPC | Bonn (Germany) | 2008 |
| XIII IPC/IX IOPC | Tokyo (Japan) | 2012 |
| XIV IPC/X IOPC | Salvador (Brazil) | 2016 |
| XI IOPC/ XV IPC | Prague (Czech Republic) | 2024 |
