The INTA archive was handed over to the INTI on 3 July 2007 by M. Sudarskis, General Secretary of INTA. It covers the period from its formation up until approximately early 2000. The archive was cleaned up before it was transferred; the selection criteria are not known. The archive consists of approximately 20 m of archives and 24 m of documentation, including around 300 books. When it arrived, it was packed in 78 removal boxes (with loose material and archive boxes) and 100 loose archive boxes.

The archive is fragmentary and documents principally the activities of INTA, especially the congresses. The formation period is summarily documented. Hardly anything has been preserved about the regular activities; office administration is virtually non-existent. The original arrangement, on the basis of consistent administration, is mostly missing. However, there is some evidence of a filing system, especially for the material related to the organized activities. These were apparently administered and archived because of their organizational complexity, even if this did not take place entirely consistently.

The files are often rather unbalanced in their composition. In some cases, whole packages with organizational items have been preserved, but in others there are only a few letters.

The congress presentations are often still present.The large amount of documentation was geographically organized, globally speaking, as written later on the removal boxes. It consists of about 400 books, a large amount of grey literature and brochures.