I would say no, you do not need it for trips under 12 months. However, why should you rely on forum people when you can easily get this information from USCIS?I'll return to my home country in the next few weeks and will return probably after 6-7 months. Do I need to apply for an I-131 (re-entry permit)?
We usually don't find answer to our confusing question from websites some times.
I read on some forums that it also might depend on which border patrol employee you run into. Some don't ask any question others are difficult....
What is RP??
Your A# is the number USCIS asks for in all your forms. It's on your GC. Class of admission should be PERMANENT RESIDENT.
Oh, you're not a GC holder yet. Then, your class of admission is ASYLEE, and your A# should be on your asylum papers.
Oh, haha, then I'm full of crap. Ignore my previous post. You ARE a PERMANENT RESIDENT, and you will be given your A#.