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140 International Mail Categories
141 Definitions
141.1 General

There are five principal categories of international mail that are primarily differentiated from one another by speed of service. They are Global Express Guaranteed® (GXGTM) service, Global Express MailTM(EMS®) service, Global Priority Mail® (GPM) service, airmail service, and economy mail service.
141.2 Global Express Guaranteed

Global Express Guaranteed is the U.S. Postal Service's premium international mail service. Global Express Guaranteed is an expedited delivery service that is the product of a business alliance between the U.S. Postal Service and FedEx Corporation. It provides reliable, high-speed, time-definite service from designated U.S. ZIP CodeTM areas to locations in most destination countries. Global Express Guaranteed is assured to meet destination-specific delivery standards or the postage will be refunded. If a shipment is lost or damaged, liability for lost or damaged merchandise or for document reconstruction is limited to a maximum of $100 or the amount of additional optional insurance purchased. The maximum weight limit for this service is 70 pounds, but some countries have a lower maximum weight limit. Countries with reduced weight limits are specified in the Individual Country Listings and in Publication 141, Global Express Guaranteed Service Guide.
141.3 Global Express Mail

The next level of service, in terms of speed and value-added features, is Global Express Mail (EMS). EMS is an expedited mail service that can be used to send documents and merchandise to most of the country locations that are individually listed in this publication. EMS insurance coverage against loss, damage, or rifling, up to a maximum of $100, is provided at no additional charge. Additional merchandise insurance coverage up to $5,000 may be purchased at the sender's option. However, document reconstruction insurance coverage is limited to a maximum of $100 per shipment. Return receipt service is available, at no additional charge, for EMS shipments that are sent to a limited number of countries. See 221.4. Country specific maximum weight limits range from 22 pounds to 70 pounds. See the Individual Country Listings. Although EMS shipments are supposed to receive the most expeditious handling available in the destination country, they are not subject to a postage refund guarantee if a delivery delay occurs.
141.4 Global Priority Mail

Global Priority Mail is an accelerated airmail service that provides customers with a reliable and economical means of sending correspondence, documents, printed matter, and light-weight merchandise items to the foreign destinations that are listed in 231.42. GPM items receive priority handling within the U.S. Postal Service and the postal administration of the country of destination. Senders can pay flat-rate postage by placing their contents into a standardized GPM envelope; or they can elect to pay variable weight postage by affixing a GPM sticker to a tyvek envelope, box, or other customer-
furnished packaging. The maximum weight limit for GPM items is 4 pounds. Special services, such as registry, return receipt, recorded delivery, and insurance, are not available in combination with GPM service.
141.5 Airmail

Subject to the following definitions, airmail service may be used to send both letter-post items and parcel post packages to most foreign countries. Letter-post is a generic term for mailpieces of differing shapes, sizes, and contents, which weigh four pounds or less, that are subject to the provisions of the Universal Postal Union Convention. Letter-post items may contain any mailable matter that is not prohibited by the destination country. At the sender's option, special services, such as registry, return receipt, and recorded delivery, may be added on a country-specific basis.

Note: The letter-post classification encompasses all of the classes of international mail (i.e., letters and letter packages, post and postal cards, aerogrammes, printed matter, and small packets) that were formerly categorized as LC (letters and cards) and AO (other articles) respectively.

Parcel post, which is otherwise referred to as CP mail, is differentiated from letter-post because it is governed by the provisions of the UPU Postal Parcels Agreement. That classification is primarily designed to accommodate larger and heavier shipments, whose size and/or weight transcend the established limitations for letter-post items. It also affords senders the opportunity to obtain optional mailing services, such as insurance coverage and return receipt, which would otherwise be unavailable.
141.6 Economy Mail

Mailpieces that are classified as letter-post or parcel post can also be entered as economy mail. Under that classification, they are subject to the same regulatory requirements and conditions of mailing as the airmail items. The substantive differences between the two levels of service primarily relate to mode of transportation (air or surface), speed of service, and price.