４８５材料需要F１approval notice 797么？

我十年前，在美国转的身份F２－＞F１，我只找到原始的I２０，USCIS在右上角盖了个章 "Approved" ，我不记得我是否收到过７９７F１的　approval notice，I can not find it now.
请问交４８５时，需要F１
的797 approval notice　么？　我其他材料都有，transcription, OPT，H１B　etc。
如果找不到F1 approval notice了，那张带章的I２０可以用作转身份证明么？Thank you!

所有跟帖： 

• You don't have to submit it - 回复：４８５材料需要F１approval　notice 797么？ -pjiang- ♀ (68 bytes) () 09/19/2011 postreply 15:15:07

• 回复：You don't have to submit it - 回复：４８５材料需要F１approval　notice 79 -visa2009- ♀ (274 bytes) () 09/20/2011 postreply 10:31:44

• 回复：回复：You don't have to submit it - 回复：４８５材料需要F１approval　notice -pjiang- ♀ (341 bytes) () 09/20/2011 postreply 11:07:33