Must I-94 be returned when leaving US

來源: wwwwwwww 於 2008-07-21 14:41:12 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (335 bytes)

I have a I-94 with "Multiple entries" on it. I got it when I entered US from Canada with Canadian passport. Now I have a trip to Europe. Do I need to return the I-94 to the Airline when leaving. Can I keep the "multiple
entries" I-94 for reentering US from Europe.
Thank you very much in advance. Need your urgent advice

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