Where to send form i130 and i483

[WhyThisDelay]

I live in nj and am filing PR for my mom. I'll be sending i130 and i485 together.

My question is where do i send it to? The Chicago lockbox or the Dallas/Lewisville lockbox.

Thanks in advance.

 

[nkm-oct23]

Chicago Lock Box. Read USCIS web page on I-130, it clearly states where to send the form.

http://www.uscis.gov/i-130 and go to 'Where to file:" section.