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Documents

    • ACE Drawback Error Dictionary v26 | Guidance

      Drawback Error Dictionary (v26) To facilitate the preparation for programming the new Superfund Tax Certification field data validations, CBP is providing this draft guidance. The reader should be advised that this is a technical document that is considered a DRAFT and is subject to revision before...

    • ACE Exports Rail X12 - 309 Customs Manifest | Guidance

      In CERT: March 1, 2018 In PROD: March 2, 2018 This page provides the message formats and technical specifications necessary to electronically transmit data to CBP's automated systems. This document is being posted to this portal to provide stakeholders with useful information.

    • ACE Export Manifest Appendix I | Guidance

      This document provides the message formats and technical specifications necessary to electronically transmit data to CBP's automated systems.

    • ACE Export Manifest Appendix J | Guidance

      Date in Certification: 06/29/2022 Date in Production: 06/30/2022 This page provides the message formats and technical specifications necessary to electronically transmit data to CBP's automated systems. This document is being posted to this portal to provide stakeholders with useful information.