Welcome to the Open Carbon Protocol

View all approved projects here.

View all approved methodologies here.

The Open Carbon Protocol (OCP) is a carbon and climate asset registry, providing the platform for:

• Collaborative, fast and antifragile methodology development

  • Project Developers, NGOs and other methodology curators work with a global panel of 8-15 experts to get methodologies improved and approved in 6-7 months (average)

• Digital, efficient and cooperative project proposal, validation & verification, and credit issuance

  • Project Developers upload pre- and post-issuance information and data and can share directly with VVBs, brokers/buyers, ratings agencies and insurance providers.

End-to-End Process Overview

1

Methodology Development and Approval

OCP Methodology Requirements

1. Methodology Proposal

2. Expert Feedback

3. Public Commentary

4. Final Feedback and Voting

5. Methodology Updates

2

Project Proposal and Validation; Data Verification

1. Project Proposal

2. Third Party Project Validation

3. Third Party Data Verification

3

Credit Issuance, Transfer, Retirements

1. Credit Issuance

2. Credit Transfer

3. Credit Retirement

See how the OCP addresses the Core Carbon Principles:

A. Governance

1. Effective Governance:

• OCP Governance Structure and Independent Advisory Board

• Conflict of Interest

• Annual Audit and Annual Reports

• Know-Your-Business, Anti-Money Laundering, Anti-Bribery and Corruption

• Corporate Social and Environmental Responsibility

• Stakeholder Engagement and Complaints

2. Tracking

• Credit Issuance, Transfer, Retirement

• Credit Cancellation

• Registry Schema and Infrastructure

• Certification and Labels: CCP-Approved, CORSIA

3. Transparency

• Project Proposal Process

• OCP Registry Schema and Infrastructure

4. Robust Independent Third-Party Validation and Verification

• Project Proposal

• Third-Party Validation and Verification

  • Working as a VVB on the OCP

• Credit Issuance

B. Emissions Impact

5. Additionality

• OCP Methodology Requirements: 4. Additionality

• Methodology Development Process

• Project Proposal Process

6. Permanence

• OCP Methodology Requirements: 8. Permanence

• Methodology Development Process

• Project Proposal Process

• Mitigating Risk: Insurance and Buffer Pool

7. Robust Quantification of Emissions

• OCP Methodology Requirements: 7. Quantification of GHG Emission

• Methodology Development Process

• Project Proposal Process

• Uncertainty

8. No Double Counting

• No Double Counting: Double Issuance, Double Use, Double Claiming

• CORSIA

C. Sustainable Development Benefits and Safeguards

• Safeguards, Co-Benefits and SDGs

Additional Attributes

• CCP Labelling

• CORSIA Eligibility

• Coming Soon:

  • Share of Proceeds for Adaption - voluntary project contribution to the UNFCCC's Adaptation Fund

  • Quantified Positive SDG Impacts - quantified SDG + Safeguards/Co-Benefits, in line with RMI's Carbon Crediting Data Framework

Annual Reports

4MB

OCP Annual Report 2025.pdf

PDF

Open

4MB

OCP Annual Report 2024.pdf

PDF

Open

Annual Audits

977KB

OCP Annual Audit 2025.pdf

PDF

Open