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Data Standards and Definitions

The Office of Immigration Statistics recognizes the importance of protecting the identity of individuals included in the data used to generate tabulations, reports, and other research. For more information, the Department of Homeland Security disclosure policy is available on the Privacy Office website.

Return to OIS home page.

Definition of Terms

Access our definition of terms.

Region and Country of Birth

The Office of Immigration Statistics categorizes countries into specific regional groups. See a list of countries included in each region.

Immigration Legislation

Last Published Date: March 10, 2021

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