Form I 485

Answer 1

"If you use an EAD that is based on your I-485 pending application, your visa status may be affected. For this reason it is important to consult experienced attorneys before using the EAD if the EAD is based on your pending Adjustment of Status. A person who has filed for an I-485 and who uses her EAD will lose valid non-immigrant status. An F-1 student or H-1B visa holder who does this will be considered to be in I-485 pending status and out of F-1 or H-1B status.

If the I-485 is denied, then the applicant cannot remain in the U.S. and will have to leave. If however, the applicant does not use the EAD, she will be able to retain her visa status and remain in the U.S. for the duration of her non-immigrant visa, even if her I-485 is denied." http://www.hooyou.com/ead/ead-pi-485.html This is a pending form used in the transition from a visa to citizenship status