485 alone (EB2 perm based)
看了移民局得网站，觉得应该是
The USCIS Nebraska or Texas Service Centers, depending on the location of the beneficiary’s permanent employment. See Form I-140 instructions for addresses.
但是I-140 instructions for addresses五月刚改过， 现在全是USCIS Dallas Lockbox。
很迷糊，请指点。