The USPS has specific requirements when sending international shipments. To ensure delivery of your international package, verify the following field requirements on your customs forms and Ship From location settings are met:
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The Ship From location and the recipient's first and last name or company name provided must be at least two alphabetic characters long.
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All Ship From and return address fields must be properly filled out.
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Customs form description field must be at least 2 alphabetic characters long.
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Customs form description field cannot be set as "NA" or "N/A".
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Customs forms must provide a full address.
Alerts, Disruptions, and Suspensions to Service
USPS provides updated service alerts on their website for any situation affecting USPS parcel delivery.
Unless otherwise noted, service suspensions to a particular country do not affect the delivery of military and diplomatic mail.
International Mail Service Suspensions - Effective: March 3, 2026
The Postal Service™ is temporarily suspending acceptance of items destined to the following countries, due to logistics impacts resulting from the conflict in the Middle East. Customers, please refrain from mailing items addressed to the countries listed here until further notice:
Algeria, Armenia, Bahrain, Djibouti, Eritrea, Iran, Iraq, Israel, Kuwait, Libya, Madagascar, Oman, Pakistan, Qatar, Seychelles, Syria, Tanzania, United Arab Emirates
USPS International Shipping Update: HS Codes Required
As of September 1, 2025, the U.S. Postal Service will require all international commercial shipments to include a six-digit Harmonized System (HS) code on customs declarations for each item, regardless of mail class.
The HS code system, created by the World Customs Organization, is used by customs authorities worldwide to classify goods and assess tariffs. This update aligns USPS mailing standards with new Universal Postal Union (UPU) regulations, also taking effect Sept 1, requiring all member countries to enforce six-digit HS codes for commercial goods.
For a full list of Harmonization Codes, use the Harmonized Tariff Schedule search.