This report provides the results of the 2010 Census Address Canvassing Quality Control Program which was conducted in the United States and Puerto Rico. The initial census address list was updated by the Address Canvassing Operation to ensure completeness and accuracy. Census questionnaires were mailed or delivered by the U.S. Census Bureau to these updated addresses after Address Canvassing.

The software and hardware developed for the 2008 Census Dress Rehearsal was utilized for the 2010 Census, although changes (some major) were made to the software functionality after the 2008 Census Dress Rehearsal. The Address Canvassing software allowed production listers to update, verify, add, or delete address information, as well as capture map spots and Global Positioning System coordinates for all structures. It also allowed for Quality Control listers to conduct a Dependent Quality Control check of the production listers' work and to perform Delete Verification activities.

The goal of the Address Canvassing Quality Control Program has always been to confirm that production listers correctly verify and update the address list and census maps. This goal was accomplished in the 2010 Census through the following Quality Control activities:

• Initial Observation
• Dependent Quality Control Check
• Map Feature Quality Check
• Delete Verification and Final Delete Verification