CBP to Deploy Entry Type 13 Test for U.S. Mail Processing in ACE
U.S. Customs and Border Protection (CBP) is testing Entry Type 13 (ET13), a new ACE entry type for USPS international mail shipments, implementing two June 24, 2026 Federal Register notices on mail entry and de minimis suspension. Deployment runs from the CERT environment on July 24, 2026, to Production on September 22, 2026