This document provides instructions for preparing an H4 EAD application. It outlines the necessary documents to compile, including an H4 approval notice, I-140 approval or evidence of AC21 eligibility, marriage certificate, and previous work authorization documents. Acceptable secondary evidence if primary documents are unavailable includes approved I-140 petitions or evidence of an H-1B principal receiving an AC21 extension. The application form I-765 for the EAD must be correctly filled out with the proper code and fees and mailed to the correct USCIS address along with supporting documentation. An I-539 change of status can be concurrently filed. Hiring an attorney is recommended if an I-140 was revoked but an applicant may still be eligible based