I-94 Card or Visa: How long can I stay in the United States? (Ⅰ)

USLawChina now summarizes I-94 and visa:I-94 cards for readers, that is, arrival/departure records, commonly known as "small white cards", which are a kind of small white or green cards. Non-immigrant visa holders will receive such an I-94 card every time they enter the United States and pass the border inspection, which proves that non-immigrants legally enter the United States. When you enter the country as a non-immigrant, the immigration inspector will check your passport and visa and ask you why you want to go to the United States. If he/she thinks you meet the requirements of non-immigrant status, you will get a white I-94 card, and the inspector will indicate the authorized time (date) or identity period of your stay in the United States on the card. If it is "D/S", it means that your legal stay in the United States is the time when you have the same job or studied in the same school. When you arrive at the airport, port, border immigration office or other immigration offices in the United States, the immigration prosecutor will ask you to fill out and submit this form. As a registration form for non-immigrant foreigners entering the United States, I-94 card will be issued to non-immigrant foreigners entering the United States at the port of entry. Immigration security inspectors will mark the entry date, place and entry status (such as F, J, H, L, etc. ) and the duration of stay on the back of the I-94 card, which foreigners should keep as official permission records for entering and leaving the United States. If you need to extend your stay in the United States, or want to change your identity and continue to stay in the United States after the stay time indicated on the I-94 card, you need to submit an application for extending or changing your identity to USCIS. When you leave this country, you must hand in your I-94 card. Unless you want to go to Canada, Mexico or neighboring islands (excluding Cuba) and stay for no more than 30 days, you can return to the United States with an I-94 card.