Some qualification needed. Whoever files PERM or 140 first, fill that A number on all your subsequent immigrant petition. A number can be found in your PERM or 140 approval notice. For example, if you file Perm first, fill the A number on the approval notice on the later140 and 485 application. If you apply NIW first, in my case, fill the A number from ur 140 approval notice to ur subsequent 485 application. If during that time, you apply for Eb1, fill the same A number in your Eb1 140. Trust m