 In March 1961, the OEEC published the first comprehensive survey of "The Flow of Financial Resources to Countries in Course of Economic Development, 1956-59".This was followed by annual reports until 1964.On 23 July 1961 
a Ministerial Resolution decreed that upon the supersession of the OEEC by the OECD, the DAG would become the DAC, and these changes came about in September 1961.