within 30 days, no visa is

来源: required- 于 2005-09-18 11:29:30 [] [旧帖] [给我悄悄话] 阅读数 : (173 bytes)

This is called automatic visa revalidation. This only applies in US-Canada, and US-Mexico borders. Keep your valid I94 card. That alone will allow you to reenter the States.

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