Approved Underlying Immigrant Visa Petition
The underlying immigrant visa petition must be approved prior to adjustment of status. If this is not a concurrent filing, the file should contain the underlying approved visa petition (Form I-130, I-140, I-360 or I-526). The I-485 may be adjudicated based on the I-797 Approval Notice if the Service was unable to obtain the petition after a diligent search was made.