Assessing the accuracy of the census is essential given that census data are used to apportion seats in Congress, to redraw congressional districts, and for many other public and private purposes. The Census Bureau's (CB) Census Coverage Measurement program (CCM) is to assess the accuracy of the 2010 Census and improve the design of operations for the 2020 Census. In April 2008, a report was issued that recommended that the CB identify how it would relate CCM results to census operations to improve future censuses. This report examined: (1) the status of CCM planning; and (2) the effects of design decisions since the April 2008 report. Charts and tables. This is a print on demand edition of an important, hard-to-find publication.