Research ReportCRS ReportVersion 2
R47541
Immigration: The U.S. Entry-Exit System
Published May 2, 2023Updated Jun 21, 2025
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The Congressional Research Service is a nonpartisan policy and legal analysis arm of the Library of Congress. CRS reports are written for members of Congress and their staff, not the public — but they’re made available openly through Congress.gov.
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Consolidated Appropriations Act, 2016
Dec 18, 2015 · Became Public Law No: 114-113.