[en] This report defines the needs for storage facilities and identifies possible sites in three regions of the US where such facilities could be located. The three sites are: Barnwell, South Carolina; Morris, Illinois; and West Valley, New York. This report includes consideration of the technical, economic, and regulatory factors associated with providing spent fuel storage in existing or potential at-reactor storage pools, and in AFR storage pools. This determination was based on specific data regarding the storage capacity needed to accommodate spent fuel from reactor pools by January 1, 1985, that the utilities would be unable to provide for themselves