Depending on where you enter US. In the last summer, I entered US in Detroit airport, my AP was taken by an IO, while my spouse came back through JFK airport, her AP document was stamped and returned to her. So I assume each AP document is good for one trip.
Depending on where you enter US
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• Thank you :) -dd12- ♀ (0 bytes) () 03/04/2008 postreply 08:50:03