Foreign visitors arriving in the United States are required to register their entry and exit from the country.
It is important to know the forms and documents necessary to register an exit from the United States, since, for example, people who leave by land and do not register their exit are in danger of having their visa canceled the next time they enter the country. This happens in the event that they have not registered their departure and also cannot verify when and how they left the country, so the United States Customs and Border Protection (CBP) can conclude that the visitor has remained safely. not authorized in the country.
Form I-94, for example, is the document designed to record entry and exit from the United States, which is necessary for people crossing the border by land up to 25 miles.
Foreign visitors arriving in the United States by air or by sea do not need to complete the I-94 entry / exit registration form issued by CBP.
People who need to prove their legal visitor status to employers, academic institutions, or government agencies can fill out the form online.
On the other hand, people who cross the border by land more than 25 miles, must complete I-94 electronically through the CBP One mobile app and or the CBP website: https://i94.cbp.dhs.gov/I94/#/home. This way it is not necessary to print the form.
With respect to visitors registering an arrival by air, sea or land and receiving an electronic I-94 and also registering their departure by land, their departure may not be accurately recorded. Otherwise to leave by air or more since the CBP will register the exit electronically.
In case the visitor does not register your departure, it is recommended to obtain a printed copy of the form in the application or on the website in the option of "Get Most Recent I-94" or "Get Most Recent I-94".
Check the frequently asked questions about this form at the following links: https://www.cbp.gov/document/fact-sheets/i-94-fact-sheet,