Can I send a certified mail and require Siganiture when sending I-130 to USCIS P.O. Box address? or Delievery confirmation is the best I should do?
Thanks
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missgf (2010-03-11 13:59:28) 评论 (0)Can I send a certified mail and require Siganiture when sending I-130 to USCIS P.O. Box address? or Delievery confirmation is the best I should do?
Thanks