A lot of travelers confuse the essential purposes of a visa and the I-94 stamped at the port of entry. The two serve separate purposes and cannot be interchanged. The United States immigration system has a two-point check-in when coming into the country. (This varies depending upon the mode of travel, i.e. by air/water or land.) The visa allows you to travel to the United States. Form I-94 allows you admission into the United States. Read on to know the essential differences between the two and the significance of each.
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