The tabs below represent the unique state legislative years as collected by the U.S. Census Bureau through the Redistricting Data Program. Each tab contains information specific to the year these state legislative districts were first in effect. Typically, new products are generated only for state legislative districts with changes. Any changes to state legislative district plans are submitted to the Census Bureau by non-partisan state liaisons, identified by the governor and legislative leadership of each state at the beginning of each decade's Redistricting Data Program. Once these plans are processed and inserted into the MAF/TIGER database, the Census Bureau generates verification materials for each state to review and certify as accurate. Any reported changes to the verification materials were incorporated into these final products.
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.