May 14, 2024

Carbon Emission Token (CET) Protocol - Version 1.0

Carbon Emission Token (CET) Protocol - Version 1.0

The Global Blockchain Business Council's InterWork Alliance (IWA) recently unveiled the Carbon Emission Token (CET) Protocol - Version 1.0. This pioneering document serves as a comprehensive guide, offering technology-agnostic advice for developing a system that issues tokenized emissions. It includes rigorously auditable Measurement, Reporting, and Verification (MRV) data for emissions accounting.

Version 1.0 of the CET Protocol utilizes the IWA's Token Taxonomy Framework (TTF) to foster a worldwide consensus on terms, definitions, and the fundamental processes involved in creating and managing emissions data. By adopting distributed ledger technology (DLT), organizations can achieve greater transparency, accuracy, and quality in emissions data. Moreover, this technology facilitates the sharing of emissions MRV data along value chains, which enhances the reporting of indirect emissions and provides a more comprehensive view of an organization's global ecological impact.

This protocol is designed to allow organizations to streamline their reporting processes by automating them through public ledger references, thus simplifying the management of value chain emissions. The creation of the CET Protocol represents over a year of diligent discussions by the IWA’s CET Taskforce and builds upon previous IWA initiatives in sustainability, including the Digital Measurement, Reporting, and Verification (dMRV) Framework and other projects related to Voluntary Ecological Markets.

We are proud to have contributed our expertise to this report, and extend our gratitude to all the individuals and groups who also contributed to the development of this protocol by participating in the taskforce and offering feedback, both during the public consultation phase and throughout the protocol’s formulation.

To explore the Carbon Emission Token (CET) Protocol - Version 1.0, please visit their website. IWA welcomes any feedback on the document and invites those interested in getting involved to contact them at

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