1951
IUOTO transfers its headquarters to Geneva, Switzerland, where it remains until 1975.
1954
IUOTO takes part in the United Nations Conference on Customs Formalities for the Temporary Importation of Private Road Motor Vehicles and for Tourism held in New York, which adopts two key multilateral instruments to facilitate travel and tourism promotion activities.
1957
Robert Lonati (France) becomes the first IUOTO Secretary-General; his mandate will be extended until 1974.