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For APO/FPO/DPO destinations, choose United States (Domestic and APO/FPO/DPO Mail) and enter Weight and ZIP Codes.
For US Territories, Possessions, and Freely Associated States, choose United States (Domestic and APO/FPO/DPO Mail) and enter Weight and ZIP Codes.
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PS Form 2976-A, Customs Declaration and Dispatch Note CP 72, inside a PS From 2976-E, Customs Declaration Envelope (online form)
*GXG, Priority Mail International Flat Rate Envelopes and Small Flat Rate priced boxes, First-Class Mail International, and First-Class Package International Service are not available for items requiring an Export License under U.S. Law.
The surface area of the address side of the item to be mailed must be large enough to contain completely the applicable customs form, postage, and any applicable markings, endorsements, and extra service labels.