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, read OIS's disclosure policy.

Additional information about the disclosure policy of the Department of Homeland Security is available from the Department's Privacy Office Web site.

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: April 18, 2016

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