
Regular Flat-Rate Envelopes, Legal Flat-Rate Envelopes, and Padded Flat-Rate Envelopes would increase to 8.95, 9.25, and 9.65 respectively. Large Envelopes (flats), under 16 ounces (the actual weight limit is 15.994 ounces to accommodate Postal Service systems that round to three decimal places and thus round items that weigh 15.995-15.999 ounces up to 16 ounces).Ĥ First-Class Package International Service maximum weight: 4 lbs. The Medium Flat-Rate Box would increase to 16.10, the Large Flat-Rate Box would decrease to 21.50 and the price of the APO/FPO Large Flat-Rate Box would decrease to 20.00. Medium and Large Flat Rate Boxes, 20 lbs.ģ First-Class Mail International maximum weights: Letters, 3.5 ounces. Complete tables of prices are available in Notice 123, Price List.ġ Priority Mail Express International Flat Rate Envelopes maximum weight: 4 lbs.Ģ Priority Mail International Flat Rate Service maximum weights: Flat Rate Envelopes and Small Flat Rate Priced Boxes, 4 lbs. Listed below are the countries and their price groups and weight limits for the five principal categories of international mail.

