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 be processed in the wrong classification, which would delay the 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), including packages/parcels being sent to military APOs/FPOs.
These forms can be obtained at any U.S. Post Office or from ASU 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, in all capital letters and with no abbreviation.
We do not process global mail. This must be processed at one of the local post offices.