October 24, 2023 — The U.S. Census Bureau today released the latest in a series of briefs describing the disclosure avoidance methods used to protect 2020 Census data products. “Disclosure Avoidance Methods for the Detailed Demographic and Housing Characteristics File A (Detailed DHC-A): How SafeTab-P Works” describes the formally private algorithm used to protect the Detailed DHC-A data and provides guidance for data users. The Detailed DHC-A was released September 21.

More briefs are in development that will provide specific guidance for using the 2020 Census data. The full list of briefs released to date includes: 

• Disclosure Avoidance Methods for the Detailed Demographic and Housing Characteristics File A (Detailed DHC-A): How SafeTab-P Works
• Disclosure Avoidance and the 2020 Census Redistricting Data
• Why the Census Bureau Chose Differential Privacy
• Disclosure Avoidance and the 2020 Census: How the TopDown Algorithm Works
• Disclosure Avoidance for the 2020 Census: An Introduction (Handbook)

The Census Bureau wants to ensure its products meet data users’ needs and welcomes feedback and questions at [email protected].

No news release associated with this announcement. Tip sheet only.