Interpreting recent trends in I-94 nonimmigrant admissions has been complicated by more complete recording of entries into the United States. Beginning in 2005, at selected Southwest border crossings, the Department of Homeland Security installed new technology to record land admissions previously excluded from I-94 data systems; by 2010 this technology was installed at nearly all pedestrian crossings and vehicular lanes along the Southwest and Northern borders. The increase in I-94 nonimmigrant admissions after 2005 as reported by the Office of Immigration Statistics (OIS) is partly due to more complete counting. This OIS Fact Sheet provides an indication of the impact by displaying trends in nonimmigrant admissions compared to trends in the number of individuals admitted each year during 2001-2010.
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