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The threat level in the airline sector is High or Orange. Read more.
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Disclosure Policy
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.
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Immigration Legislation
- Recent Immigration-Related Legislation (USCIS.gov)
- Immigration and Naturalization Legislation from 1790 to 1990 (USCIS.gov) (PDF, 5 pages - 61 KB)
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Adobe Acrobat (PDF)This page was last reviewed/modified on July 24, 2009.