The Voluntary Carbon Markets Integrity Initiative (VCMI) is an international non-profit empowering companies, governments and non-state actors to realise the full potential of high-integrity voluntary carbon markets (VCMs). VCMI provides guidance on how different actors can make voluntary use of carbon credits to make a meaningful impact on climate action.
VCMI's Claims Code of Practice (Claims Code) provides a universal standard for companies to, first, use carbon credits as part of their net zero transitions, and second, make verified claims about this use. The Claims Code enables companies to make ‘Carbon Integrity’ Claims, recognising their achievements in going above and beyond science-aligned emissions cuts to accelerate global net zero.
The Claims Code was developed through an 18-month, deliberative process involving experts, governments, companies, and civil society actors from around the world, to provide a high-integrity standard with international recognition, so that companies can engage with confidence and governments can develop policy in a harmonised way.
The VCMI Claims Code of Practice is intended for:
To qualify for an enterprise-wide VCMI Claim, companies need to adhere to the following steps:
These criteria are formulated to align with the long-term objectives of the Paris Agreement and reflect current corporate best practices.
Companies have to:
VCMI offers three tiers of Carbon Integrity Claims that companies and other non-state entities can pursue. Each of these claims signifies actions that surpass the internal decarbonisation efforts of companies:
All applicants must satisfy the four Foundational Criteria and exhibit emissions reductions relative to the base year, whether absolute or intensity-based. Furthermore, the proportion of carbon credits purchased and retired should escalate each subsequent year following the company's attainment of a VCMI Silver or Gold Claim.

Carbon credits utilised by a company must meet the highest quality benchmarks to uphold the credibility of its claims and foster integrity throughout the market. VCMI delineates these as credits aligned with the Integrity Council for the Voluntary Carbon Market (ICVCM) Core Carbon Principles (CCPs).
Until CCP-Approved credits become available, VCMI offers companies two approaches to purchasing and retiring high-quality carbon credits:
Option 1: Purchase and retire CORSIA-eligible credits, when a specific activity type has not yet been assessed by the ICVCM.
Option 2: Disclose how due diligence processes align with all 10 Core Carbon Principles.
Option 3: Combination of the above.
Transparent reporting and assurance of information are imperative, requiring claimants to demonstrate adherence to the Foundational Criteria and Carbon Integrity Claim-specific requisites while disclosing pertinent information regarding the acquired carbon credits.
The VCMI Monitoring, Reporting and Assurance (MRA) Framework outlines specific reporting and assurance criteria for companies to meet in order to make a Carbon Integrity Claim. This ensures that for each VCMI Claim issued, underlying information is appropriately evaluated, evidenced, and verified. The MRA Framework helps companies navigate the VCMI Claims process and adhere to all requirements found within the VCMI Claims Code.
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Looking ahead, the expansion of the Claims Code throughout 2024 and beyond will encompass the development of additional modules and guidance. This includes a comprehensive monitoring, reporting, and assurance (MRA) framework, further, VCMI Claims tiers, and updated claim names and provisions for specific sectors and geographies.
Although VCMI Claims are confined to voluntary initiatives, robust comprehensive policies and regulations are deemed indispensable in averting catastrophic climate change.
The VCMI’s Claims Code of Practice serves as a crucial guide for companies to comply with upcoming environmental regulations like the CSRD. It also helps them effectively demonstrate their contributions to climate change mitigation beyond their value chains.
You can read more about the VCMI Claims Code of Practice by reading this report.