The 2010 Participant Statistical Areas Program (PSAP) will allow designated participants, following Census Bureau guidelines, to review and suggest modifications to the boundaries for block groups, census tracts, census county divisions, and census designated places for reporting data from the 2010 Census.
More information concerning PSAP can be found on the Census Bureau website at http://www.census.gov/geo/www/psap2010/psap2010_main.html.
PSAP Participation Map by County as of June 2008