It replaced two separate audit bodies, one which dealt with the finances of the European Economic Community and Euratom, and one which dealt with the European Coal and Steel Community.
See asendas senist kahte eraldiseisvat auditiasutust, millest üks tegeles Euroopa Majandusühenduse ja Euratomi rahaliste vahenditega ning teine Euroopa Söe- ja Teraseühendusega.