My green card expires in a few months. I need to travel overseas for a few weeks, but will be back at least a couple of months before it expires. Is there any requirement that the green card be valid for at least six months when traveling?
Answer No, there is no such requirement. You likely are thinking of the rule that requires the passport to be valid for at least six months beyond a nonimmigrant's anticipated stay in the United States. But even that "rule" only applies to passports issued by countries...