It is application to register permanent residence or adjustment of status. Based on the immigration petition one may adjust the status, if immigrant visa number is immediately available the based on approved petition of relatives, juvenile, military, employee.

Initial Evidence Needed:

Criminal History.
Birth Certificate.
Copy of passport page with non-immigrant visa.
Photos.
Bio-metric services.
Police clearance.
Medical examination.
Affidavit of support/Employment Letter.
Form G-325A, Biographic Information Sheet.

Get Permanent residence after filing Form I-485 Green card.