I have my green card. Recently applied for re-entry permit with I-131 for which I got a receipt notice from USCIS that said
"USCIS has received your form and is currently processing your application. This notice informs you that USCIS is able to reuse your previously captured fingerprints and other biometrics. USCUS will run the same security checks and use your biometrics data as in the past, however it is not necessary for you to appear at a USCIS ASC for biometrics appointment."
Given this, am I ok to travel to India (I am an Indian citizen) while the re-entry permit is still being processed? Or should I wait for approval before I can travel? Or is there an another acknowledgment letter that I should wait for. The re-entry processing time for NSC service center is showing 17.5 months and that is a long time to wait to travel if I have to wait for approval.