The project, funded by the National Science Foundation, covers every state in the country from 1984 through 1990 (including some off-year elections). Data posted include "voting, registration and census data aggregated to Minor Civil Division groups (a US census demographic district generally the size of a small city)" as well as voting and registration data aggregated to the precinct level. Among other things, these data "should make possible many new studies of legislative redistricting, and associated analyses and forecasts of political and racial fairness, compactness, the consequences of equal population constraints on gerrymanderers, and related issues." The site is divided into two portions: the first offering an extensive online handbook about the acquisition, character, and uses of the data; the second providing the means to access the data. Users may download the data using an SPSS portable zipped file or SAS, Stata, or ASC II applications.