1 For exceptions to the filing requirement see chapter 2 of Publication 557 and the general instructions for Form 990.  An organization exempt under a subsection of Code sec. 501 other than 501(c)(3) may establish a charitable fund, contributions to which are deductible. Such a fund must itself meet the requirements of section 501(c)(3) and the related notice requirements of section 508(a).
At each APO, FPO, or DPO, there is an equivalent to a-real-honest-to-goodness-Post Office staffed by members of the respective branch of service. While the layout of each APO/FPO/DPO varies by location, suffice it to say they look and operate just like a real Post Office. In fact, they have to, since we are talking about U.S. Mail. Each APO/FPO/DPO address holder has a mail lock box in which their mail is slotted. Since parcels can't fit in these boxes, delivery or notification slips, just like real ones, are put in the boxes whenever a parcel arrives.
APO means Army Post Office. That zip code 09356 is NOT LISTED! 09355 is Garlstedt, Germany but there is no 09356 listed in the source below. By the way if you see FPO that means Fleet Post Office. EUROPE: AE 090-092 Germany, AE 093 Contingency, AE 094 United Kingdom, AE 095 Ships, AE 096 Italy, Spain, AE 097 Other Europe,