The Clean Energy Regulator has confirmed that the migration of Australian Carbon Credit Units (ACCUs) from the Australian National Registry of Emissions Units (ANREU) to new ANREU accounts in the Unit and Certificate Registry will begin at 6:00 pm (AEDT) on Friday, 7 November 2025.
Both systems will be taken offline during the migration and testing period, with completion expected by Monday, 10 November 2025. ACCU holdings are expected to be live in the Unit and Certificate Registry from 8:00 am (AEDT) on Tuesday, 11 November 2025, when users will be able to access their updated accounts via Online Services.
The Regulator has confirmed that accuracy and completeness of data remain its top priority, noting that multiple test migrations have been completed to ensure a smooth transition. The migration is part of a broader effort to modernise Australia’s carbon credit registry system and streamline management of carbon units under the Australian Carbon Credit Unit (ACCU) Scheme.
Account holders are encouraged to download and save their own records—including PDFs or CSV files of holdings and transaction logs—from the existing ANREU system both before and after the migration. Any discrepancies can be reported directly to the Regulator once systems are live.
Updated information on the migration process, including any timing changes, will be published on the Unit and Certificate Registry webpage. Following the migration, the Regulator will release video demonstrations explaining new features and will host an online Q&A session on 25 November 2025 for users. Visit Migration of ACCUs to the new registry Q&A to register attendance.
