International rates are based on speed of service rather than content.
How to Prepare Your International Mail
All mail being sent internationally should be accompanied by a completed “charge slip” and must be kept separate from all other mail. International mail that is not kept separate from mail traveling to U.S. destinations could result in having that mail be processed in the wrong classification and delay arrival of your mail item.
All international parcels should be accompanied by a completed and signed customs form (PS form 2976 or PS form 2976A), this does include packages/parcels being sent to military APO/FPO’s.
These forms can be obtained at any United States Post Office, or from Mail Services. When addressing your mail piece, the last line of the address should contain only the name of the destination country spelled in English, all capital letters with no abbreviation. Contact Mail Services if you have any questions on how to prepare your outgoing international mail or visit USPS.com.
We do not process global mail this must be processed at one of the local post offices.