回复:那是否可以这样呢:

我现在就递交PERM,过段时间我换到别的部门,但我现在说我愿意并将以后回到目前这个递交PERM申请的职位(需要提供什么材料吗?对此需要什么证明吗?),在别的部门工作,等到以后有一天(^_^)递交485表格180天后,我change position就是了。
-USCIS may ask your employer to prove that you will come back to work for that position.

按照您所说意思,如果我换岗的话,我没必要在绿卡批下来之前回到递交PERM的职位,只要递交PERM的时候有这样的意愿(不管什么时候)即可?好像很蹊跷。
-GC application is for the future position, so it works technically. But your employer needs to convice USCIS that they will hire you for that position after you get the GC.

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