The official denomination in the BIE regulations is International Recognized Exhibitions.
- International Expos take place between two World Expos and have a duration of 3 months
- Participants include: countries, international organizations, NGOs, corporations and other institutions
- The size of the site is limited to 25 hectares and participants customize pavilions that are built by the organizers ·
- The theme of the International Expos must be specific, specialized, and provides the lead wire for all other dimensions: architectural, events, participation, modes of cooperation, etc.
INTERNATIONAL EXPOS REGULATED BY THE SINCE 1931
| WORLD EXPO | WORLD EXPO | ||
| 1936 | STOCKHOLM – Sweden | 1974 | SPOKANE – USA |
| 1938 | HELSINKI – Finland | 1975 | OKINAWA – Japan |
| 1939 | LIEGE - Belgium | 1981 | PLOVDIV – Bulgaria |
| 1947 | PARIS - France | 1982 | KNOXVILLE – USA |
| 1949 | STOCKHOLM – Sweden | 1984 | NEW ORLEANS – USA |
| 1949 | LYON - France | 1985 | TSUKUBA – Japan |
| 1951 | LILLE – France | 1985 | PLOVDIV – Bulgaria |
| 1953 | JERUSALEM – Isra?l | 1986 | VANCOUVER – Canada |
| 1953 | ROME – Italy | 1988 | BRISBANE – Australia |
| 1954 | NAPLES – Italy | 1991 | PLOVDIV - Bulgaria |
| 1955 | TURIN – Italy | 1992 | GENOA - Italy |
| 1955 | HELSINGBORG - Sweden | 1993 | TAEJON - Korea |
| 1956 | BEIT DAGON - Isra?l | 1998 | LISBON - Portugal |
| 1957 | BERLIN - Germany | 2005 | AICHI – Japan |
| 1961 | TURIN - Italy | 2008 | SARAGOZA – Spain |
| 1965 | MUNICH - Germany | 2012 | YEOSU – Korea |
| 1968 | SAN ANTONIO – USA | 2017 | ASTANA - Kazakhstan |
| 1971 | BUDAPEST – Hungary |