I have a web form that is used to gather contact information for a GED verification service. We're starting to get a lot of requests to send the verification's to APO/FPO addresses. Tried Googling/Binging for some examples but there is nothing available on how to create an accessible and usable form that can handle the extra information. ( examples: USPS - APO/FPO/DPO Guidlines )
Currently we ask for name, address, address 2, state, city and zip. An APO/FPO address has no city or state, just a name, location and a zip with some extra text in front. I was thinking of offering two separate forms that would be selectable at the beginning of the collection process, one for a normal USA address format and another for the APO/FPO format.