Census Redistricting Data is available in a number of ways:
Resources available to explain the Census Redistricting Data:
Guide to 2010 Census Redistricting Data - Strength in Numbers [PDF] 10.2 MB
Technical Documentation for the P.L. 94-171 Redistricting Data 2000 [PDF]
Related Geographic Products:
Downloading Census 2000 Redistricting Data TIGER/Line Files
Census 2000 Redistricting Data Maps