In their most recent Visa Overstay report, which looks at data gathered during the 2018 fiscal year between October 1, 2017 and September 30, 2018, the US Department of Homeland security provides data on visitors they believe to have overstayed their visas.
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In the wake of the report, a memorandum signed by President Trump and published on April 22, 2019, said: “As of March 2019, there were over 415,000 individuals in the United States suspected to still be in the United States after overstaying their nonimmigrant visas in fiscal year (FY) 2018.”
The report states: “An overstay is a nonimmigrant who was lawfully admitted to the United States for an authorized period, but remained in the United States beyond his or her authorized period of admission.
“The authorized admission period can be a fixed period; or for the duration of a certain activity, such as the period during which a student is pursuing a full course of study or any authorized technical/practical training.
“DHS identifies two types of overstays: 1) individuals for whom no departure has been recorded (Suspected In-Country Overstays), and 2) individuals whose departure was recorded after their authorized period of admission expired (Out-of-Country Overstays).”
The DHS’s report organized their data by countries who were part of the Visa Waiver Program, and those who were not.
Business and pleasure visitor from Ireland overstays
Expected Departures: 558,218
Out-of-Country Overstays: 218
Suspected In-Country Overstays: 1,487
Total Overstays: 1,705
Total Overstay Rate: 0.31%
Suspected In-Country Overstay Rate: 0.27%
Students and exchange visitor from Ireland overstays
Expected Departures: 11,868
Out-of-Country Overstays: 121
Suspected In-Country Overstays: 230
Total Overstays: 351
Total Overstay Rate: 2.96%
Suspected In-Country Overstay Rate: 1.94%
Other in-scope nonimmigrant classes of admission from Ireland overstays
Expected Departures: 22,567
Out-of-Country Overstays: 150
Suspected In-Country Overstays: 133
Total Overstays: 283
Total Overstay Rate: 1.25%
Suspected In-Country Overstay Rate: 0.59%