CBP Extends Entry Type 13 Implementation Date 

On October 14, 2026, CBP announced that it was extending the compliance date for the new informal entry procedures for international mail from Oct. 22, 2026, to Jan. 20, 2027. CBP stated that the 90-day extension would provide importers, brokers, and logistics providers additional time to update their processes and avoid disruptions for U.S. bound international postal shipments.

In a June 24, 2026 interim final rule, CBP required that all international postal shipments that are subject to Section 201, 232, or 301 duty or are the jurisdiction of a Partner Government Agency must be filed electronically in the Automated Commercial Environment (ACE) through the new Entry Type 13 process for purposes of informal entry.

The mandatory use of the new Entry Type 13 type filing procedure that was due to commence on October 22 will now be extended to January 20, 2027.

While the mandatory implementation date is being extended, CBP encouraged filers to begin using the optional Entry Type 13 process for the informal entry of international mail shipments during this transition period to ensure readiness in advance of the new mandatory deadline.