Answer:
Upon an approval of your I-526 petition, you are eligible to adjust your status in the United State by filing the I-485 application. With your I-485 application, you attach an application (Form I-765) for work authorization. USCIS is statutorily required to issue employment authorization (EAD) within 90 day and it usually takes three months for the USCIS to issue an EAD for a pending I-485 applicant.
