In the 1980s, the Scientific Commissions were flanked by Application Commissions, tasked with experiments on practical applications of photogrammetric techniques. Information on the activities of the applications commissions can be found in the Steering Committee files in this fond.
The OEEPE also organized Working Groups (WG) and Action Groups (AG) tasked with very specific aspects of photogrammetric research. The fond includes two sub series with the documents of the Working Groups on Numerical Photogrammetry and on Cost Models. Information on other WGs and AGs can be found in the Steering Committee files in this fond.

Reports, notes, correspondence, circulars concerning the activities of the Scientific Commissions of the OEEPE.