The 2020 Post-Enumeration Survey (PES) Final Housing Unit (FHU) Matching Operational Assessment operation was the last PES matching operation. This operation included three sequential phases: FHU computer matching, FHU Before Followup (FHU BFU) clerical matching, and FHU After Followup (FHU AFU) clerical matching.

This report focuses on the Final Housing Unit (FHU) Matching operation only. Previous PES matching and data collection operations were addressed in separate reports. This assessment describes what happened during the FHU Matching operation and identifies lessons learned. It also provides information on the successes and shortcomings of the 2020 PES FHU Matching operation and produces valuable data for the 2030 PES planning cycle.

The FHU Matching operation processed any updates made since the Initial Housing Unit (IHU) Matching operation to census addresses within the PES sample basic collection unit (BCU) search areas (this included the sample BCU and a ring of BCUs surrounding each sample BCU). The sample BCUs were in the 50 states, District of Columbia, and Puerto Rico.