回複：回複：用ＥＡＤ找第二份工作，必須通知現雇主嗎, 現雇主辦的綠卡．

1. depends on what status you use to work for current employer. If H1, then they probably will suggest or require you switch from H1 to EAD once you use EAD for other employer. If you already use EAD for current employer, then no need, unless

2. whether your second job will have interest conflict with your current job, this have nothing to do with USCIS, but your current job description.