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    DISCLOSURE

To maintain confidentiality, limitations are placed on the type and quantity of output that researchers may remove from the Center.

The RDC administrator must approve all statistical output removed from the Center.
Supplementary documentation is required for release of output.
The clearance process can take 3 weeks or longer. Be sure to discuss timelines with the RDC administrator.
Projects must emphasize output from statistical models as opposed to tabular output.
Release of intermediate or tabular output is discouraged due to complementary disclosure risks.
Advisors of graduate students should expect to visit the Center to look over intermediary output.
The Census Bureau has the final say on what is cleared for release.
The Census Bureau considers it important not only to avoid disclosure of confidential information but also to avoid the perception of disclosure.


Security policies are taken very seriously. Researchers will be held accountable for their actions and may be subject to disciplinary measures ranging from termination of project to fines of up to $250,000 and /or five years or less of imprisonment.

Literature on disclosure analysis
Merrell, David R., and Arnold P. Reznek (2002), "On Disclosure Protection for Non-Traditional Statistical Outputs."
Merrell, David R., and Arnold P. Reznek (2001), "On Disclosure Protection for Non-Traditional Statistical Outputs: Kernel Density Estimators." Proceedings of Statistics Canada Symposium 2001. Achieving Data Quality in a Statistical Agency: A Methodological Perspective.
                 
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  ©2002 Chicago Census Research Data Center
This site was last updated on June 26, 2008
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We do not offer research services or provide statistics. Please visit the Census Bureau website to find out about such services.