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What does the Public Law 94-171 require us to do? The Census Bureau will inform state governors and legislative leaders at least 4 years before each census of technical guidelines they must follow to obtain population totals for their locally defined voting districts (e.g., election precincts). The Census Bureau will also make public announcements of this program in the Federal Register.
States/Governments wishing to participate in this nonpartisan, voluntary program will submit to the Census Bureau specific boundaries for their voting districts, legislative districts, and desired census block boundaries, following technical criteria established by the Census Bureau, under the provisions of P.L. 94-171.
The Census Bureau will provide small-area population totals to the legislature and governor of each state in a nonpartisan manner, by one year after the census (e.g., April 1, 2011).
Download the Federal Register Notice [PDF 51kb], which announces the establishment of this program.