• To : Automated Broker Interface, ACE Outreach Events, ACE Portal Accounts, Truck Manifest
Subject: TRUCK SECTION 321 ADDITIONAL POINTS OF CONTACTS
In accordance with the guidelines specified in the Trade Act of 2002, all commercial truck 
shipments containing low value merchandise cleared under the provisions of 19 CFR 10.151 (more commonly known as Section 321 shipments), will require an advance electronic manifest to be filed with CBP prior to border crossing.  

For information about applying for a carriers account in the ACE portal, please visit:

•	https://www.cbp.gov/trade/automated/getting-started/portal-applying

For technical guidance regarding the EDI systems visit:

•	https://www.cbp.gov/trade/automated/technical/ace-import-manifest-documentation.

For additional information concerning the change in policy please contact the OFO Manifest Branch at [email protected] 

For additional support with filing a manifest, please contact ACE Support at [email protected] 

If you are hauling more than 5000 shipments on a single manifest, please contact Amy Hatfield directly at [email protected]