The lack of knowledge or misunderstanding about the role of a "Visa" and the "I94 card" has been a major factor in many foreign nationals falling out of status in the U.S. So, which one determines how long can you stay in US? What if your I-94 card has incorrect information on it? Visit http://www.VisaPro.com/Signup.asp and request a FREE Case Evaluation today if you have any questions about the I-94 card, or apply for a change of status, or extend your stay.