父母在美遞交綠卡申請已半年，已按指紋並獲得Alien number。最近收到移民局來函，可免於麵試但需再等半年才可獲批。因二老中國國內有事需辦理，請問他們可申請返鄉證嗎？多久可得到批準？謝謝！
-They have to file I-131 to apply for advance parole (AP) to travel to China, and need to have the AP approval before they leave. If they have to leave urgently, they may go to the USCIS local office to get the emergency AP by providing the evidence of emergency. They can get the emergency AP in a few hours. It is free (no filing fee) for the AP application in your parents' case.
See this USCIS website for AP application:
http://www.uscis.gov/portal/site/uscis/menuitem.5af9bb95919f35e66f614176543f6d1a/?vgnextoid=b11747a55773d010VgnVCM10000048f3d6a1RCRD&vgnextchannel=db029c7755cb9010VgnVCM10000045f3d6a1RCRD
-They have to file I-131 to apply for advance parole (AP) to travel to China, and need to have the AP approval before they leave. If they have to leave urgently, they may go to the USCIS local office to get the emergency AP by providing the evidence of emergency. They can get the emergency AP in a few hours. It is free (no filing fee) for the AP application in your parents' case.
See this USCIS website for AP application:
http://www.uscis.gov/portal/site/uscis/menuitem.5af9bb95919f35e66f614176543f6d1a/?vgnextoid=b11747a55773d010VgnVCM10000048f3d6a1RCRD&vgnextchannel=db029c7755cb9010VgnVCM10000045f3d6a1RCRD
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