On September 11, 2019, the Census Bureau sent out an email advising AES users that the Country Code shown below has been updated in the AES, effective immediately.
| Country Name | Old ISO Country Code | New ISO Country Code |
| Burma (Myanmar) | BU | MM |
The full list of AES ISO Country Codes may be found in CBP Automated Export System Trade Interface Requirements ISO Country Codes September 9, 2019.
