By the way,

回答: 感谢8老师的信息, 预祝您新年快乐straycat00012015-02-10 12:44:50

after submitting I-407 to the VO, the VO will return the I-407 to you after they approve it (stamp or make a note on it). This I-407 is considered the proof of green card abandonment (receipt). You need to bring this I-407 with you when you enter US using a non-immigration visa (e.g. B-2, etc.). Also, need to provide the copy of this I-407 if you apply for the green card again in the future.

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Thank you so much. -straycat0001- 给 straycat0001 发送悄悄话 (0 bytes) () 02/11/2015 postreply 08:16:10

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