where should I mail the I-485 lukashow2005-09-22 03:08:55

Please help!!!!!!!!!!!!!

My I-140 is pending, I want to submit the I-485 by Sept.30, but I don't know which P.O. Box I should mail to at Nebraska Center.

which choice should I choose?
1. mail to the same P.O. Box that my I-140 submitted to
2. seperately mail I-485 to the a P.O. Box that is different with I-140 P.O. Box.

Thanks a lot for your attention and appreciation for any reply!!!!!!!!!!!1111