Event:16 September | Carbon Removal Policy Summit
Independent CDR Risk RatingsIntegrity and Accountability

INDEPENDENT CDR RISK RATINGS

Lever last updated: 10 September 2026

External, independent ratings that grade removal projects for buyers, investors and funders.

Cost

Very low to Low

A buyer, investor or programme owner pays to obtain independent risk ratings and keep them updated as projects develop. Costs depend on the number of projects, the risks assessed and whether existing ratings are available or bespoke analysis is needed. Establishing or supporting a ratings provider also requires specialist staff, data access, assessment methods and quality assurance.

Complexity

Very low to Medium

Using an established service may require only an internal purchasing rule and a subscription. Making ratings a formal funding condition adds exception procedures and conflict checks. Establishing a provider requires new analytical methods, specialist staff, data access, quality review and appeals.

Timeline

Very short to Medium

Existing ratings can influence the next purchasing or funding decision within a year. Commissioning coverage of unfamiliar methods may take one to two years; establishing and testing a new service may take two to five years before organisations rely on it. These are planning estimates from the decision to introduce the service.

Integrity, Transparency & MRV

2–3

Innovation & Cost Reduction

N/A

Social & Environmental Safeguards

1–2

Energy, Transport & Storage Infrastructure

N/A

Inputs & Capacity

N/A

Demand Formation

1–2

Bankability and Cost of Capital

1–2

Policy Architecture & Coordination

1–2

Overview

Public and private buyers, investors and fund managers can use independent CDR risk ratings when deciding which projects to support and on what terms. A rating is an external assessment, usually expressed as a grade with supporting analysis, of specified risks to a project's carbon benefit or future delivery. A buyer can use it to shortlist suppliers, request stronger evidence or decide against paying in advance. A public fund can use it when assessing applications or setting funding conditions. The implementing organisation commissions or subscribes to the assessment and specifies how its staff should use the findings; the rating agency conducts the analysis. Where suitable coverage is missing, buyers or funders can commission additional assessments or support its development. Certification establishes compliance with a standard; ratings help users examine risks that compliance alone may not resolve.

Key Considerations

The organisation using ratings should start with the decision it needs to make. Purchasing issued credits requires confidence in the carbon benefit already claimed; contracting future removals also requires an assessment of whether the supplier can deliver. Lending or investing requires separate financial analysis where the rating does not cover the developer's finances. Users should check which risks the service assesses, how much supporting evidence they can inspect and when ratings are updated. A weak accounting assumption may affect many projects using the same protocol, while a construction delay may affect only one supplier. Procurement and investment rules should explain when staff must seek further evidence, change contract terms or reject a project, and who can approve an exception for an unrated supplier.

Opportunities

Ratings can help purchasing teams compare suppliers without each team rebuilding the same specialist analysis. Several buyers subscribing to one service can draw on its project assessments, then investigate issues specific to their own contracts. If an assessment identifies uncertain delivery, a buyer can reduce its advance payment or spread purchases across more suppliers. If the issue is weak monitoring, it can require better evidence before contracting. A developer told that its monitoring evidence is inadequate can improve the monitoring plan or supply missing records before seeking a reassessment. Public funds can also use independent findings to explain why one application received support while another did not.

Risks

Using independent ratings to select suppliers or allocate funding can give potentially flawed assessments undue influence over which projects receive support. An inaccurate rating may exclude a credible supplier or steer money towards a weak project, while a single overall grade can obscure risks outside the assessment’s scope. Commercial ties between rating providers and developers can compromise independence, and requiring a rating can disadvantage smaller developers or new methods that have not yet been assessed. Buyers and funders should understand what each rating covers, examine its supporting evidence and accept credible alternatives where appropriate. Rating providers should disclose conflicts of interest and offer clear correction and appeal procedures without allowing paying clients to negotiate their grades.

Monitoring and Evaluation

The organisation using ratings should record which findings changed its supplier shortlist, contract terms, funding decision or monitoring requirements. It can then compare rated risks with subsequent evidence, such as delivery delays, corrected carbon estimates or reversals, and examine whether its response was useful. For example, did a delivery warning lead it to limit an advance payment before the supplier missed a milestone? Procurement teams should also review assessment fees, staff time saved and credible projects excluded because ratings were unavailable. The agency should update its methods and assessments when new evidence exposes recurring errors.

Stakeholder Engagement

The buyer's procurement or investment team defines the decision and the evidence it needs; its legal and finance staff determine how findings affect contracts or funding conditions. The rating agency selects its analytical methods, employs the relevant scientific and technical experts, investigates the project and maintains the rating. Developers provide records and respond to factual questions. Communities and safeguard specialists should be consulted by the agency where local impacts fall within the assessment. The buyer should agree access to the agency's reasoning and an escalation process, while retaining responsibility for the final purchasing or investment decision.

Governance Levels

InternationalSupranationalNationalRegional / StateCity / MunicipalCorporate / IndustryPhilanthropy

Companies can commission and use ratings or establish independent services. Governments at each listed level, international institutions and philanthropic funders can incorporate ratings into their own procurement, investment or grant programmes. Their role is to decide how independent evidence informs the money they commit. The provider remains responsible for producing the assessment. Funding a provider should preserve its freedom to reach an unfavourable conclusion.

Implementation Strategies

  • Buyers and funders should identify the decisions ratings will support, such as supplier selection, advance payments or grant eligibility, and select a service that assesses the relevant carbon, delivery or financial risks.

  • The commissioning organisation should examine the provider's methods, expertise, commercial conflicts and update arrangements. Where coverage is missing, it can commission additional analysis with clear deliverables while leaving analytical conclusions to the provider.

  • Purchasing and investment teams should explain how findings affect their decisions, who approves exceptions and what evidence an unrated supplier may provide. A grade should be considered alongside price, contract terms and risks outside the rating's scope.

  • Contracts with the provider should specify access to supporting analysis, correction and appeal procedures, update frequency and notification of material changes. Users should identify which changes require them to reconsider existing commitments.

  • Users should periodically compare assessment costs and decision changes with project outcomes. They can adjust the service or their purchasing rules where ratings duplicate existing checks, miss important risks or unnecessarily exclude credible suppliers.

Case Studies

Sylvera's ratings for purchasing decisions

Sylvera is a commercial provider of carbon-credit ratings and project data. Its ratings service assesses carbon accounting, additionality and permanence using methods tailored to each project type, with a common AAA-to-D scale for full ratings. Assessments cover projects before and after credits are issued. A corporate or public buyer can subscribe to this existing analysis, compare shortlisted suppliers and investigate the reasons for a weak grade before purchasing. The agency performs the specialist assessment; the buyer decides whether to proceed, request more evidence or change its contract. Coverage includes removals and emissions-reduction projects. For a CDR buyer, the relevant choice is whether the available assessment answers its purchasing question or whether it needs additional analysis of delivery and contract risks.

Switzerland commissions BeZero assessments

BeZero Carbon is a commercial carbon-credit ratings agency. In August 2025 it announced a mandate from Switzerland's Federal Office for the Environment to assess projects producing Article 6.2 credits, which countries can transfer under the Paris Agreement's international cooperation rules. Three projects were covered; assessments of an electric-bus initiative and a rice-cultivation project were complete at announcement. The government commissioned independent project-level analysis to support its carbon-market decisions, while the agency undertook the assessments. A public CDR fund could use the same arrangement when screening applications or deciding which projects need additional conditions. The reported projects concern emissions mitigation rather than removal. The example illustrates a government buying specialist scrutiny to inform decisions while retaining responsibility for those decisions.

Calyx Global separates carbon and safeguard assessments

Calyx Global is a commercial carbon-credit ratings provider. Its assessment framework separately examines the credibility of the greenhouse-gas claim, contributions to the United Nations Sustainable Development Goals, and environmental and social risks. The carbon assessment considers whether a credit represents a tonne of reduced or removed carbon dioxide; the safeguard analysis examines issues including land rights and biodiversity. A buyer can therefore check both the carbon benefit and local risks, rather than assume a strong carbon grade answers both questions. It can require additional evidence or exclude projects that fail its safeguard criteria. Calyx conducts the analysis; the buyer sets those criteria and acts on the findings. This separation is useful for CDR procurement, although the service also covers emissions-reduction projects.

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©2026 Alexander Mäkelä and Carbon Gap.
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