The number of the CM/1 application that DPs had to fill out from the summer of 1947 may be noted on the DP 2 cards. This application was required for acceptance into the Care and Maintenance program of the IRO. There are around 350,000 of these applications and other related documents in the Arolsen Archives. It is therefore worth checking the online archive of the Arolsen Archives to see whether there is a CM/1 application for the respective person. These references were either written or stamped on the DP 2 cards, and they can be identified by the abbreviation CM.