CBAM Definitive Registry (from 2026 onwards)
The Commission is developing the CBAM Definitive Registry to help importers perform and report as part of their CBAM obligations during the CBAM definitive regime (from 2026 onwards).
Authorisation Management Module (AMM)
Importers of CBAM goods (or their indirect customs representatives) are urged to apply for the status of authorised CBAM declarants. Please read carefully and follow the instructions below as soon as possible to submit your CBAM application.
As of 31 March 2025, a new section of the CBAM Registry allows importers and indirect customs representatives to apply for the status of authorised CBAM declarant in the Member State of establishment, which is independently from where the goods are imported to. A list of the national competent authorities can be found on this website in the section “List of National Competent Authorities for CBAM”.
CBAM Registry module to be used is the Authorisation Management Module (AMM). The AMM encompasses features related to CBAM Authorisations. This module facilitates the entire process, from the initial authorisation requests submitted by applicants to the consultation process between competent authorities and the Commission, culminating in a decision to grant or refuse the CBAM authorisation.
AMM Videos - Authorisation Management Module
| Video Name | Description |
|---|---|
| Introduction to training | This video presents the purpose, objectives, and audience of the training, and provides an overview of the main CBAM AMM concepts, including applications, authorisations, guarantees, and the roles of different actors. |
| Consult my homepage and my user information | Guides users through the homepage layout, main widgets, notifications, menu, language options, and user profile. |
| Consult my notifications | Familiarises users with the notifications system, including viewing received and sent notifications, checking key details such as sender, subject, and read/unread status, responding to requests, and managing notifications through actions like archiving. |
| Set my email preference | Assists users in setting their email preferences for system notifications, including adding email addresses, selecting a preferred language, and configuring alerts for new notifications. |
| Access the user manual | Guide users on how to access the user manual, ensuring they can easily locate and refer to it for additional information and guidance on system functionalities. |
| Lodge an application | Guide users through the process of lodging a new application by filling in the required information across the three tabs (Stakeholders details, Activity details, and Financial and operational details). |
| Find my application and authorisation | Help users locate and consult their applications and authorisations within the system. |
| View application and authorisation details | Familiarize users with the layout and functions available in the application details page. |
| Find my drafts | Guide users in locating and managing their draft applications. |
| Withdraw an application | Show users how to withdraw an application that is in the correct status, including filling in the withdrawal justification, submitting the request, and viewing the updated status and related notifications. |
| Provide adjustments to an application | Guide users in providing adjustments to an existing application, including specifying the type of adjustment, referencing relevant regulatory articles, adding supporting details or documents, and reviewing submitted adjustments in the process data and notifications. |
| Request a revocation | Show users how to request the revocation of an existing authorisation, including accessing the revocation form, completing the justification, optionally attaching documents, submitting the request, and viewing the ongoing revocation in the process data and related notifications. |
| Withdraw a revocation request | Guide users in withdrawing a revocation request that is under processing, including filling in the withdrawal justification, submitting the request, and viewing the updated revocation status and related notifications in the system. |
| Communicate changes which may affect the authorisation | Show users how to communicate changes that may affect their authorisation, including updating relevant application data, submitting the changes, saving drafts for later, and viewing the updates in the process data and related notifications. |
| Request amendment | Guide users in requesting an amendment to specific data within their authorisation, including filling in the amendment justification, optionally attaching supporting documents, submitting the request, and reviewing the amendment details in the process data and notifications. |
| Provide additional information | Show users how to provide additional information when requested by the national competent authority, including filling in the required details, optionally attaching supporting documents, submitting the information, and reviewing it in the process data and sent notifications. |
| Exercise my right to be heard | Guide users in exercising their right to be heard regarding a decision, including reviewing the notification details, providing their point of view, optionally attaching supporting documents, saving drafts, submitting their response, and tracking it in the sent notifications. |
| Register a guarantee | Guide users in exercising their right to be heard regarding a decision, including reviewing the notification details, providing their point of view, optionally attaching supporting documents, saving drafts, submitting their response, and tracking it in the sent notifications. |
| Adjust a guarantee | Guide users in adjusting their guarantee information as requested, including updating amounts and validity dates, adding multiple guarantees, attaching supporting documents, submitting the adjustment, and tracking the adjustment status in the system. |
| Request guarantee release | Show users how to request the release of a guarantee associated with their authorisation, including providing a justification, attaching supporting documents, and submitting the request. |
DRMC Videos - Data reconciliation for monitoring and control purposes component
| Video name | Description |
|---|---|
| Introduce users to the DRMC component, showing the key concepts, data flows, and quantifiable assets, and familiarising them with the C1 Declarant portal to monitor goods and emissions. |
| Show users how to view threshold notifications for linked importers and perform goods and emissions queries at an overview level using yearly and quarterly aggregation.
|
DRMC: Goods and Emissions – Detailed level
| Show users how to query and view goods and emissions at a detailed level using yearly, quarterly, or no aggregation, applying filters such as sector, goods code, country of origin, quantity, and estimated emissions.
|
Module for non-EU installation operators (O3CI)
This module (Module for non-EU installation operators – O3CI) is intended exclusively for installation operators located outside the European Union (EU). If you are an operator of a company established within the EU, please access the Authorisation Management Module (AMM).
As of January 2025, a new portal section of the CBAM Registry allows installation operators outside the EU to upload and share their installations and emissions data with reporting declarants in a streamlined manner, instead of submitting it to each declarant separately.
Please note that there are two main steps, and only by carefully following the instructions below will you be able to successfully connect to the portal.
Step 1: Create an EU Login Account
- Go to https://webgate.ec.europa.eu/cas.
- Register using your email address (a company email is strongly recommended), create a password, and confirm your registration via the email link you receive.
- Set up two-factor authentication (EU Login App, QR code, or FIDO2 key).
- Each user must register individually.
Step 2: Submit Access Request (Onboarding Wizard)
- Go to https://cbam.ec.europa.eu/o3cinstallation.
- Log in using your EU Login credentials.
- Complete the onboarding form with the following information:
- Company details and registration number/identifiers
- Company email and website
- User role (Admin Operator or Simple Operator)
- Upload a single PDF containing (documents preferably in English, including a courtesy translation, along with the original documents):
- Company registration certificate (including registration number/identifier matching the one provided in the form)
- Proof of representation (e.g., power of attorney)
- ID of the authorized representative
The relevant module in the CBAM Registry to be used is Operators Third Countries Installations. The portal allows operators to ensure the confidential treatment of business-sensitive data. Reporting declarants are then able to automatically populate their CBAM reports with this emissions data in order to comply with their reporting obligation.
CBAM declarants can retrieve the information provided by non-EU installation operators in the Transitional Registry. A new functionality in the “Emissions” tab allows declarants to “Search in Third Country Installations registry” and access the respective installation and emissions data from there.
For this to work, CBAM declarants need to share their EORI number with the supplier outside the CBAM Registry. In a future update, operators will be given the option to share their information with all interested declarants.
To become a Registered Operator, non-EU installation operators need to follow the steps outlined in the following e-learning modules and guidance documents.
e-learning modules about O3CI (Operators of Third Country Installations)
| Video tutorial | Description |
|---|---|
| Manage registration requests, requests for change, parent company details and export list of installations | This training video series consists of 10 sessions covering the comprehensive workflow for operator request management and system interaction with the O3CI (Operators of Third Country Installations) platform. The series will help operators (with standard and administrative user roles) to navigate in O3CI platform, create, save, submit, correct, and resubmit requests following Commission’s feedback. Additional functionality covers parent company management and the ability to search and export installation data. The sessions presented follow a logical progression from initial registration to advanced features, allowing users to follow either a sequential path or select specific topics, as needed. |
| Manage emissions, operator and installation data disclosure and export list of emissions | This training video series consists of 8 sessions covering the complete workflow for managing emissions information and disclosing operator / installation data to the Transitional Period system via the O3CI platform. The series will help operators (with standard and administrative user roles) to add, search, view, edit, and delete emissions data. Users will learn how to control which operator and installation data are accessible to the public through the disclosure management features and add or edit the list of declarants that this information will be disclosed to. The series also highlights important functionality for information retrieval allowing users to export comprehensive emissions lists. The sessions presented follow a logical progression from adding, viewing, editing, deleting emission information to disclosure information management, allowing users to follow either a sequential path or select specific topics, as needed. |
| Search, Navigate and view details of operator, installations and supporting documents | This 8-minute training video demonstrates how to effectively search, navigate, and access detailed information about operators, installations, and supporting documentation within O3CI portal. The video will help operators to learn how to utilize the platform's pagination, sorting and filtering functionality to locate specific installation using various criteria such as installation id, installation name, country and city of establishment. This essential navigation training ensures authorized operators can efficiently locate required information in other functionalities of the O3CI portal such as emission management. |
- 24 FEBRUARY 2026
- 24 FEBRUARY 2026
- 19 FEBRUARY 2026
- 17 DECEMBER 2025
- 4 JUNE 2026
CBAM Transitional Registry (from 2023-2025)
The Commission has developed the CBAM Transitional Registry to help importers perform and report as part of their CBAM obligations during the CBAM transitional phase (2023-2025).
Note: The link provided is accessible solely to importers who have been duly registered by the National Competent Authorities (NCAs) of establishment. If you have not yet registered and you wish to access the registry, kindly reach out to the NCA of the Member State in which you are established.
- 16 FEBRUARY 2026
Recording of info session on the CBAM Transitional Registry
Useful documents
- 18 DECEMBER 2024
- 1 APRIL 2025
- 4 OCTOBER 2024
- 17 JANUARY 2025
- 26 MARCH 2025
Quarterly Report
The following files concerning quarterly reports can be downloaded. The XSD file describes the full structure of the CBAM quarterly report, while the ZIP file may be uploaded in the Registry to fill in automatically the quarterly report’s data. CBAM declarants will also find them in the CBAM Transitional Registry User Manual.
This XLS file can be used by CBAM declarants to facilitate completion of the CBAM quarterly reports using XML files. The XLS file indicates which are the optional/mandatory fields and provides the pre-defined values that are allowed for specific fields.
- 1 APRIL 2025
- 1 APRIL 2025
- 1 APRIL 2025
- 1 APRIL 2025
