Ive a Filipino passport, but a resident of Belgium for the past 3 years now. I now have a renewed Filipino passport with a married name. Still have my old (single status also Filipino) expired passport with a 10 year US visa (which will only expire September 2009). We will be leaving in two weeks time (no time to get another visa if needed) for a 2 week US trip. Can I still use my visa from the old passport. I will of course bring both passports with me. Would bringing a copy of marriage certificate help?