The 2020 Census Count Review Operation (CRO) enhances the accuracy of the 2020 Census through:

• Implementing an efficient and equitable process to identify and incorporate housing units (HUs) that are missing from the Census Master Address File (MAF).
• Identifying and including or correcting large group quarters (GQs), such as college/university student housing, that are missing from the MAF or geographically misallocated.
• Positioning unresolved cases for a smooth transition to the Count Question Resolution operation.
• Evaluating census responses and subsequent data files at multiple levels of geography for reasonableness and verifying that edits have been properly applied.