How to Resolve Common AES Response Messages
March 17, 2026
Note: This message is sent to all AES Updates subscribers and is for educational purposes only.
When submitting your Electronic Export Information (EEI) to the Automated Export System (AES), you can receive different response messages: Fatal, Compliance, Verify, Informational and Warning. It is important that AES filers address and/or correct Response Messages as soon as they are received to comply with the Foreign Trade Regulations.
To help you take the appropriate action, here is guidance on how to address one of the most frequent Response Messages that were generated in the AES for the previous month.
Response Code: 170
Narrative: Air Waybill Format: NNN-NNNNNNNN
Severity: Fatal
Reason: The Transportation Reference Number reported for this Air shipment was not in the correct format.
Resolution: A number identifying the carrier’s master air waybill may be declared on an air shipment. When reported, a master air waybill number must be reported in the following format: ‘NNN-NNNNNNNN’ (where ‘N’ = a numeric value).
Verify the Transportation Reference Number, correct the shipment and resubmit.
For a complete list of the AES Response Codes, their reasons and resolutions, see Appendix A – Commodity Filing Response Messages.
As a reminder, filers have multiple resources that they can use when filing EEI to the AES. You can access User Guides, Walk-through videos and other resources at our website.
Please contact the U.S. Census Bureau’s Trade Data Collection Branch for further information or questions.
Telephone: (800) 549-0595, select option 1 for AES
Email: askaes@census.gov
Online: www.census.gov/trade
|
