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Carbon Markets 19 min read

Carbon Market Integrity Map

Choose how a carbon credit will be used, then follow seven evidence gates covering eligibility, quality, accounting, registry records, retirement and claims.

Kieran Simpson

Carbon markets decision tool

Carbon Market Integrity Map

Follow a carbon credit from intended use to evidence, retirement and the claim made at the end. Passing one test does not settle the next.

Version 1.0 Checked 14 Jul 2026 7 evidence gates

Choose the intended use

The same credit can face different eligibility, accounting and claim tests.

Compliance routeStart with the exact scheme, compliance period and unit rules. A general quality label cannot replace eligibility for the obligation.

Seven gates from use to claim

RequiredConditional
Gate 1

Intended use

What is the unit being used for?

Define the obligation, contribution or claim before comparing programmes or prices.

Boundary: A stated purpose does not establish eligibility, quality or a credible claim.

Request this evidence

  • Applicable obligation or voluntary purpose
  • Jurisdiction and reporting period
  • Proposed public wording
  • Buyer emissions boundary and climate target

Failure signal

The process starts with a programme name or price before the use is defined.

Gate 2

Scheme eligibility

Is this exact unit eligible for this exact use?

Check the programme, methodology, geography, vintage, phase and exclusions against the governing rule.

Boundary: Eligibility permits a specified use. It does not establish universal credit quality.

Request this evidence

  • Programme and methodology
  • Project geography
  • Vintage and crediting period
  • Scheme phase or compliance period
  • Exclusions, conditions and host attestations

Failure signal

For CORSIA (Carbon Offsetting and Reduction Scheme for International Aviation), a programme is called eligible without the relevant phase, vintage or exclusions.

Gate 3

Credit and methodology quality

What does the credited tonne represent?

Inspect the baseline, additionality, quantification, monitoring, permanence, leakage and safeguards behind the unit.

Boundary: A programme or category label does not settle project suitability, vintage quality or claim credibility.

Request this evidence

  • Baseline and additionality case
  • Quantification method and uncertainty
  • Monitoring and verification records
  • Permanence and reversal treatment
  • Leakage assessment
  • Safeguards and grievance route
  • Methodology version and programme status

Failure signal

An ICVCM (Integrity Council for the Voluntary Carbon Market) programme or category decision is treated as a complete project-level verdict.

Gate 4

Host accounting and double counting

Could the mitigation outcome be counted or claimed twice?

Trace any host authorisation, corresponding-adjustment status, authorised purpose and national accounting treatment required for the use.

Boundary: A corresponding adjustment addresses national accounting. It is not a project-quality label or universal claim approval.

Request this evidence

  • Host-country authorisation where relevant
  • Corresponding-adjustment status where relevant
  • Authorisation purpose and unit label
  • National accounting treatment
  • Controls for double issuance, use and claim

Failure signal

Article 6 aligned appears without an authorisation document, purpose or registry trail.

Gate 5

Registry identity and ownership

Can the unit be traced from issuance to the current holder?

Match the project, methodology, vintage and serial range to a resolving registry record and claimed holder or beneficiary.

Boundary: A registry record establishes recorded identity and status, not the underlying climate claim.

Request this evidence

  • Registry and project ID
  • Serial range
  • Methodology and vintage
  • Issuance record
  • Transfer history where available
  • Current account or beneficiary evidence
  • Cross-registry duplication check

Failure signal

A certificate or invoice is supplied without serial numbers and a resolving registry record.

Gate 6

Retirement or cancellation

Was the unit taken out of circulation for the stated purpose?

Confirm the serials, quantity, date, beneficiary and purpose in the relevant retirement or cancellation record.

Boundary: Retirement prevents reuse of that serialised unit in the registry. It does not make the wider claim accurate.

Request this evidence

  • Retirement, cancellation or use record
  • Date and quantity
  • Serial range
  • Beneficiary
  • Recorded purpose or claim wording
  • Compliance-period link where applicable

Failure signal

Purchase is presented as retirement, or retirement as proof that the claim is accurate.

Gate 7

Claim, disclosure and assurance

What can the buyer now say?

Keep the wording inside the emissions boundary, claim period, reduction record, credit evidence and applicable legal or assurance rules.

Boundary: A voluntary claims framework does not replace local law or supply-side credit assessment.

Request this evidence

  • Emissions inventory and boundary
  • Reduction target and progress
  • Role of credits alongside reductions
  • Credit details and retirement evidence
  • Claim period and exact wording
  • Applicable advertising and reporting rules
  • Validation or assurance where required

Failure signal

A VCMI (Voluntary Carbon Markets Integrity Initiative) claim is broader than the emissions boundary, period or supporting evidence.

Eligible is not high qualityA scheme permission answers only the use it governs.

Issued is not retiredA live unit can still circulate or be transferred.

Retired is not a credible claimThe buyer's reductions and wording remain separate tests.

Adjusted is not quality-labelledNational accounting does not prove additionality or permanence.

Decision route

How to use the map

Choose the intended use, open each gate and assemble the records that answer it. A later document cannot repair an earlier failure: retirement cannot create eligibility, and careful wording cannot repair weak credit evidence.

Working document

Evidence checklist

0 of 14 evidence groups marked received

Your checklist is stored only in this browser.

Blank CSV
GateEvidence groupReceivedUnresolved issue or source URL
1. Intended usePurpose, jurisdiction, period and proposed wording
1. Intended useBuyer inventory boundary and climate target
2. EligibilityProgramme, methodology, geography and vintage
2. EligibilityPhase, period, exclusions and host attestations
3. QualityBaseline, additionality and quantification
3. QualityMonitoring, permanence, leakage and safeguards
4. AccountingHost authorisation and authorised purpose
4. AccountingAdjustment status and double-counting controls
5. RegistryRegistry, project, methodology, vintage and serials
5. RegistryIssuance, transfer and holder evidence
6. RetirementSerials, date, quantity and beneficiary
6. RetirementRecorded purpose and compliance-period link
7. ClaimInventory, reductions, credit role and exact wording
7. ClaimApplicable rules, validation and assurance

Different jobs

What each framework settles

No single institution owns every integrity question. The useful test is whether the framework answers the question in front of it.

Framework or systemMain roleWhat it testsWhat it does not settle
ICVCM and CCPSupply-side integrity benchmarkProgramme eligibility and category-level assessmentProject suitability, buyer use or claim credibility
VCMI Claims CodeDemand-side corporate use and claimsCompany action, credit use, disclosure and assuranceLegal compliance everywhere or supply-side quality
Paris Agreement Article 6International cooperation and accountingAuthorisation, transfer and national accounting where applicableProject quality or voluntary claim wording
CORSIAInternational aviation compliance eligibilityProgramme, unit, vintage, phase and exclusion rulesSuitability for unrelated voluntary claims
Registry recordUnit identity and transaction recordIssuance, ownership, transfer and retirement statusAdditionality, climate impact or claim credibility by itself

Dated source register

Current framework status

Status notes are deliberately brief. Open the official source before relying on a changing programme, category, registry or eligibility decision.

ICVCM assessmentsProgramme and category decisions remain an evolving processSource updated 11 May 2026
VCMI Claims CodeVersion 3.1 is listed as currentPublished 18 Aug 2025
Article 6.4 registryInterim registry in use while the final registry is developedChecked 14 Jul 2026
CORSIA eligible unitsCurrent ICAO (International Civil Aviation Organization) document is the April 2026 editionChecked 14 Jul 2026
ICVCM assessment status

Programme and category assessment states, with the Council's warning that the process evolves over time.

Core Carbon Principles Assessment Framework

The supply-side framework used for programme and credit-category assessments.

VCMI Claims Code resource library

Current Claims Code and Monitoring, Reporting and Assurance Framework versions.

UNFCCC Article 6.4 mechanism registry

Registry design, interim arrangements, identifiers, account types, authorisation and unit use.

UNFCCC Article 6 decisions and guidance

Official decisions, rules and implementation material for cooperative approaches and the Article 6.4 mechanism.

ICAO CORSIA Eligible Emissions Units

Official eligibility documents and the programme assessment route for each compliance phase.

Method and maintenance

A route, not a rating

The map separates intended use, eligibility, quality, accounting, registry evidence, retirement and claim wording because they are different tests. It does not score individual credits or turn a framework label into a recommendation.

Review monthly and after an ICVCM assessment, VCMI revision, UNFCCC (United Nations Framework Convention on Climate Change) Article 6 decision, ICAO eligibility update, programme suspension, methodology revocation or material claims-law change.

Open the Carbon Market Intelligence Dashboard for dated market and implementation signals.

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