Mail addressed to military post offices overseas is subject to certain conditions or restrictions of mailing regarding content, preparation, and handling. The APO/FPO table below outlines these conditions by APO/FPO ZIP Codes™ through the use of footnoted mailing restrictions codes (see the Restrictions page following the table).
Acceptance clerks should use the table with the integrated retail terminal (IRT) or POS ONE terminal to determine which APO/FPO ZIP Codes are active and which conditions of mailing apply. Acceptance clerks may contact the Military Postal Service Agency with any questions regarding APO/FPO ZIP Codes, toll free, at 800-810-6098, Monday-Friday, 0730–1600 ET.