I-485 and OS155A, thanks

來源: 於 2006-06-24 08:57:40 [舊帖] [給我悄悄話] 本文已被閱讀：次

What is I-485? and what is OS155A? what is the difference?
After the I-485 approved, the I-485 will be changed to OS155A? thanks for answer.