Files of the Congressional Vote Analysis and Allied Work Phases were stored at Columbia by the WPA at the termination of the Historical Record Survey. The material was listed in inventory form. This collection was sent to the University of Michigan so that its contents could be transferred into a computer data storage system. The files of roll-call votes and summaries of their contents are now available on magnetic tape. The files of approximately 20,000 maps, the correspondence files, and the research files are now housed at the National Archives in Washington. Columbia now retains only the card index to the collection.