已经绿卡了，要海归2-3年。准备申请回美纸。还有一个月的时间就要回去了。
听说申请回美纸的时候必须人在美国，
可否申请后回中国，然后收到打指纹通知再回美国打指纹。然后再回中国等待批准。
-Yes of course.
如果在美国只有一个月时间，是否可以加急申请？如果可以，现在加急，加上打指纹，共需多久？
-If you have emergency such as family reasons (e.g. illness, etc.), business reasons (e.g. business meeting, etc.), you can request expedited processing for fingerprinting which may take about three weeks.
For requiring expedited processing, you should submit an email address and fax number (if any)along with two pre-paid, self-addressed express mailers along with the Form I-131. If USCIS approves the expedite request, the pre-paid express mailers will be used to return the ASC appointment notice and the reentry permit once the application has been adjudicated.
