NIW petition

I am going to submit my NIW/140 soon. Could anyone tell me if it is OK for me to submit only photocopies of the evidences of my impacts, such as recommendation letters, invitation to be reviewer, etc. Does USCIS require the original copy of any document?

Thanks a lot

所有跟帖： 

• 回复：NIW petition -sdaddd- ♀ (11 bytes) () 08/04/2005 postreply 09:31:02

• 回复：回复：NIW petition -gladusa- ♂ (19 bytes) () 08/04/2005 postreply 09:36:31

• 回复：NIW petition -congcguoke- ♀ (76 bytes) () 08/04/2005 postreply 10:12:38