Abstract
This paper describes the statistical disclosure limitation techniques to be used for all U.S. Census 2000 data products. It includes procedures for short form tables, long form tables, public use microdata files, and an online query system for tables. Procedures include data swapping, rounding, noise addition, collapsing categories, and applying thresholds. Procedures for the short and long form tables are improvements on what was used for the 1990 decennial census. Several procedures we will be using for the microdata are new and will result in less detail than was published from the 1990 decennial census. Because we did not previously have the online query system for tables, all of those procedures are newly developed.
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