GC Application Question

来源: 于 2005-05-20 10:14:20 [旧帖] [给我悄悄话] 本文已被阅读：次

I got a recommendation letter from a member of national acedamy of engineering after I had mailed my I-140 application. (I have already recieved the reciept from USCIS). Do I need to wait until I get the reference from USCIS or mail this letter to USCIS right now?