As many of our readers know, overstaying a visa can have a serious implications on ones ability to return to the US. The USCIS can record timely departure of a visitor by collecting the I-94 card upon exit.
An I-94 is a form denoting the Arrival-Departure Record of particular foreigners used by U.S. Customs and Border Protection (CBP). U.S. Citizenship and Immigration Services (USCIS) uses Form I-94 also. Form I-94 must be completed at the time of entry to the United States by foreign citizens that are being admitted into the United States in a non-immigrant visa status.
But what if you did not turn in I-94 when you left the U.S., what should you do? US Customs provided some useful tips:
Visa Lawyer Blog

