These BEFs are the whole 2010 census tabulation block representations of the plans as submitted to the U.S. Census Bureau. In instances where plans included split blocks, it was requested that the state liaison identify a single district to assign the split block for use by the U.S. Census Bureau for data tabulation purposes. Each .ZIP file contains a national block equivalency file and individual state files for those states who reported changes during this collection cycle. In some instances, those reported changes were cosmetic and did not result in an actual change to the whole block assignments. The fields in these files should be imported as text to preserve leading zeros.