How can issuing chambers upload documents to the Carnet “Documents” section?

The ATA Carnet Core acts as a centralised repository and viewing portal. It does not allow document uploads after issuance. All documents must be uploaded during the carnet issuance process within the issuing platform.

1. When and where are documents uploaded?

Documents must be attached before the carnet is issued, while it is still in “Draft” status:

• Integrated NICS (national systems):
  Use the AddCarnetAttachment API method while the carnet is in Draft.

• ATA Gateway (ICC portal):
  Documents (e.g. photos, packing lists) can be uploaded during manual data entry before issuance.

Once the carnet is finalised using “Save and Issue” (or the Commit API method), no further uploads are possible.

2. What are the technical requirements?

• Accepted formats: PDF, JPG
• Maximum file size: 5 MB per file
• Total size per carnet: 20 MB
• Upload timing: Only allowed in Draft status

After issuance, the carnet record is digitally signed and secured, preventing any modification or addition of attachments.

3. Can documents be added after issuance?

No. The Documents section is read-only for:

• Holders / representatives
• Customs authorities

If supporting documents are required, they must be submitted to the issuing chamber in advance and uploaded during issuance.

4. Are there planned improvements?

Yes. Future enhancements are planned to allow:

• Holders to upload documents (e.g. Powers of Attorney) via the app
• Customs to attach documents via the Customs portal

Operational guidance

• Ensure documents are collected early in the application process
• Coordinate with your NGA and technical team to ensure correct API usage
• Refer to the NICS Integration Guide for implementation details