Listed below are the countries and their price groups and weight limits for the four principal categories of international mail. Complete tables of prices and weights appear in the Individual Country Listings (ICLs).
n/a = Service is not available.
1 Priority Mail International flat-rate service maximum weights: flat-rate envelope and small flat-rate box, 4 lbs.; regular and large flat-rate boxes, 20 lbs.
2 First-Class Mail International maximum weights: Letters, 3.5 ozs.; Large Envelopes (flats), 4 lbs.; Packages (small packets), 4 lbs. Note that the heading in the maximum weight column lists both ounces and pounds (“ozs. / lbs.”) and that there are two numbers in the entry for each country (“3.5 / 4”) — this indicates that the maximum weight for Letters is 3.5 ozs., and that the maximum weight for both Large Envelopes and Packages is 4 lbs.
3 Ascension, Bolivia, and the Falkland Islands: Priority Mail International parcel services are not available. The Priority Mail International flat-rate envelope and small flat-rate box (maximum weight: 4 lbs. each) may be used.
4 Cuba: Priority Mail International parcel services to Cuba are not available. The Priority Mail International flat-rate envelope and small flat-rate box (maximum weight: 4 lbs. each) may be used. Dutiable articles may not be mailed to Cuba except gift parcels up to 4 lbs. that must comply with the gift parcel rules published in 15 CFR § 740.12 for general provisions governing sanctions and for comprehensive information about goods and services that may not be imported to or exported from Cuba. Potentially dutiable items may be confiscated upon entering Cuba or returned to sender.
5 Korea, Democratic People’s Republic of (North Korea): Priority Mail International parcel services are not available, including the small flat-rate box. The Priority Mail International flat-rate envelope (maximum weight: 4 lbs.) may be used. Dutiable items and merchandise are prohibited.
