This paper describes the statistical disclosure avoidance techniques to be used for all U.S. Census 2010 and American Community Survey (ACS) five-year tabular data products. Many of these tables are published for very small geographic areas. The paper includes procedures for standard base tables, special tabulations, and a future online query system. Procedures include data swapping, rounding, collapsing categories, applying thresholds, table suppression, and generation of synthetic data.