Same or similar skills?

[chandrax]

I have AOS pending for more than 180 days.
EB2, I-140 approved.

I had used substituted labour.

Which document mentions the approved labour skills(needed to file AC21)?

Thanks
chandrax

 

[DSLstart]

Form ETA 750 A/B filed for labor / copy of certified labor / copy of 140 filing. Either of them should have skills needed for the job.

I have AOS pending for more than 180 days.
EB2, I-140 approved.

I had used substituted labour.

Which document mentions the approved labour skills(needed to file AC21)?

Thanks
chandrax

 

[chandrax]

Job title different in labour certifiction and ETA750B

If the Labor Certification job title is IT Project Manager/Project Director and in ETA750B
item 9. Occupation in which Alien is Seeking Work is "Software Engineer".
What should be the Job title for "new job" to use AC21?