An i-94 arrival-departure record number (or Arrival-Departure Record Number) is a unique identification number assigned to non-U.S. citizens upon their entry into and departure from the United States. For instance, a non-U.S. citizen who enters the country on a F1 visa will receive an I-94 number that indicates their authorized stay duration, usually linked to their visa validity.
This number is of utmost importance as it serves as proof of legal entry and stay in the United States. It is used by government agencies to track the whereabouts of non-U.S. citizens and ensure their compliance with visa regulations. Historically, the I-94 form was a physical document issued at ports of entry until it transitioned to an electronic system in 2013, offering greater convenience and efficiency.
