回复：pingjiang 老师, a follow-up

"an H-1 or L-1 nonimmigrant will violate his/her nonimmigrant status if s/he uses the EAD to leave the employer listed on the approved I-129 petition and engage in employment for a separate employer."
从字面上看,

当我还在现有公司的payroll上时,我不能用EAD去另一家公司上班(我需用EAD号去填I-9表的).
- Misunderstanding
http://blog.wenxuecity.com/blogview.php?date=200802&postID=7147