Global panel develops ledger-based framework to enhance product-level carbon accounting

The International Chamber of Commerce and Carbon Measures have convened a global Technical Expert Panel to design a ledger-based framework for product-level carbon accounting, a move intended to bring financial-accounting rigour to emissions measurement across value chains.

According to the ICC and Carbon Measures, the panel’s mandate is to develop principles and implementation steps for a system that provides timely, accurate and comparable company- and product-level emissions data, underpinned by a verifiable digital ledger. The initiative seeks to inventory existing approaches, harmonise inconsistent voluntary standards and ensure every tonne of emissions is counted only once and attributed correctly across supply chains, the organisers said. The ICC described the approach as modelled on financial accounting principles intended to deliver transparency and auditability.

The first ten expert appointments, announced by the ICC, draw from industry, finance, academia, science and civil society and include senior sustainability executives and former industrial leaders from major markets such as the United States, Europe, India, Japan and Singapore. Organisations represented among the initial appointees include Microsoft, the Chan Zuckerberg Initiative, Banco Santander, Tata Steel and Resources for the Future, and the list also includes former Rio Tinto chief executive Jakob Stausholm and representatives from global investment and trading firms. All panelists will serve in a personal capacity, the organisers said, to preserve independence and technical transparency. The ICC has extended the call for additional applicants to February 15, 2026, with further appointments expected before the panel’s first formal meeting later in the quarter.

For industrial decarbonisation professionals, the panel’s work could shift how embodied emissions are measured and traded. According to Carbon Measures and the ICC, a ledger-based system could feed more reliable Scope 3 reporting, embodied-carbon standards and sustainable procurement processes, and it may become a data backbone for governments considering carbon-based trade measures or green industrial policy. Organisers argue that robust, product-level emissions differentiation would enable markets and policy-makers to recognise and reward genuine decarbonisation, potentially affecting market access, pricing competitiveness and regulatory treatment for manufacturers.

Industry context suggests how such a system might be operationalised and the commercial interest behind it. According to the ICC, the panel will align technical design with the needs of corporate reporting and verification. Carbon Measures has framed the effort as a way to create “accurate, transparent, verifiable” data at transactional granularity. The EFI Foundation’s white paper on carbon accounting similarly adapts financial-accounting principles to product-specific carbon intensity measures and advocates for verifiable, product-based metrics to support high-integrity carbon markets and private investment in lower-carbon commodities. Meanwhile, vendors are already developing tools that link financial ledgers and carbon data: SAP’s Green Ledger application, described by SAP, integrates carbon impact tracking with transactional financial systems to produce auditable carbon reporting at the transaction level.

Stakeholders say the lack of consistency across existing voluntary standards has constrained the usefulness of corporate carbon data for investment and policy decisions. Industry data and advocacy groups have highlighted persistent gaps in supply-chain transparency, methodological divergence in Scope 3 calculations, and practical barriers to auditing embedded emissions. The ICC and Carbon Measures contend that a ledger approach could reduce these data gaps by creating a shared, auditable record of emissions attribution across value chains; proponents say that would make low-carbon products more fungible in markets and more actionable for procurement and green trade policies.

The initiative faces familiar technical and governance challenges. Translating lifecycle emissions into ledger entries requires agreed system boundaries, standardised emissions factors, clear rules for allocation and retirement of emissions claims, and mechanisms to reconcile legacy accounting approaches. According to the ICC’s call for experts, ensuring that “every tonne of carbon emissions is counted only once” will be central to the panel’s charter. Implementation will also need to address verification protocols, data privacy and the interoperability of enterprise resource and sustainability systems used by suppliers and purchasers across sectors.

For corporate sustainability teams and decarbonisation strategists, the panel’s outputs could become an important reference point. If widely adopted, a harmonised ledger-based framework could influence corporate climate disclosures, inform embodied-carbon regulations and underpin procurement standards that favour demonstrably lower-carbon products. The ICC warned that governments exploring carbon-based trade measures and green industrial policies are likely to rely on comparable product-level data when designing regulation.

The organisers emphasise that the panel is an early step in a broader effort to standardise emissions measurement. According to Carbon Measures Chief Executive Amy Brachio, the group reflects a shared ambition to build a credible system that can accurately differentiate low-carbon products; ICC Deputy Secretary-General Andrew Wilson said the panel’s diversity reflects the complexity of unlocking carbon accounting as a driver of emissions reduction. Observers note that translating principle into practice will require cross-sector collaboration, investment in data systems and an enforcement ecosystem for verification.

For industry practitioners focused on decarbonisation, the coming months, marked by further panel appointments and the first formal meeting, will be important. The ICC’s extended application window closes on February 15, 2026, and the panel’s early recommendations are likely to shape debates on how product-level emissions are measured, audited and used in commercial and policy decision-making across energy, transport, agriculture and manufacturing. Supporters argue the ledger model could reduce fragmentation in climate reporting and make emissions reduction efforts more transparent and financeable; sceptics caution that its practical success will depend on resolving technical allocation issues, securing independent verification and ensuring equitable access to the data infrastructure across regions and firm sizes.