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Special Tabulations

Protecting Confidentiality

Special tabulations must be approved by the Census Bureau’s Disclosure Review Board (DRB). The DRB is a panel of Census Bureau staff chartered to protect the confidentiality of data from individuals (or business establishments). Their role is to review each special tabulation specification and to recommend changes beyond standard confidentiality protection measures , if necessary.

At a minimum, all data cells (excluding derived measures) produced from Census 2000 will be rounded. Additional disclosure avoidance requirements, such as thresholds on universes for small population groups, may apply to your Census 2000 special tabulation. The project manager for your special tabulation will work with you to construct a request that will meet the DRB requirements.

For more information, see the Census Bureau’s confidentiality statement and documented work on Statistical Disclosure Control.