The American Community Survey (ACS) is a project of the
U.S. Census Bureau that replaces the long form in the decennial
census. It is an ongoing statistical survey, and thus more current than information obtained by the long form. Many Americans found filling out the long form to be burdensome, intrusive, and its unpopularity was a factor in the declining response rate to the decennial census. In
1995, the Bureau began a process to change the means of demographic, housing, social, and economic information from the census long form to the ACS. Testing began in 1996, and the ACS program began producing test data in 2000, 2001, and 2002. The full program is expected to be implemented by 2010.
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