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What a carbon neutrality claim has to survive
Carbon neutrality is the most publicly exposed claim an organisation can make, and the one most often assembled backwards — credits first, plan afterwards. ISO 14068-1:2023 sets out the sequence in which a claim becomes defensible, and a verifier examines it in that sequence.
What has to exist, in order.
A defined subject
Neutrality is claimed for something specific: an organization, a product, a service, an event, a building, a project or a financial asset. "The company is carbon neutral" without a stated subject and boundary is not a claim that can be examined.
DefinitionA quantified carbon footprint of the subject
Quantified against the applicable standard — ISO 14064-1:2018 for an organization, ISO 14067:2018 for a product — with the boundary, the period and the exclusions stated.
QuantificationA carbon neutrality management plan
A written plan with targets, a timeline, responsibilities and the intended path. This is the document that distinguishes a commitment from an announcement.
PlanThe reduction hierarchy applied
Emission reductions and removals within the subject come first. Offsetting addresses the residual, not the total. A claim in which nothing was reduced and everything was offset does not satisfy the standard.
PriorityOffsetting that meets criteria
Carbon credits used must meet the criteria the standard specifies. Provenance, permanence, additionality, avoidance of double counting and retirement all have to be evidenced — a certificate of purchase is not evidence of any of them.
ResidualA claim stated with its limits
The published claim carries the subject, the period, the footprint, what was reduced, what was offset and against which standard. A claim that omits these is not supported by the verification behind it.
Disclosure
Offsetting first is the error the standard was written to prevent.
The pattern is familiar: a total is calculated, credits are purchased to match it, and a claim is published. Every individual step may be defensible; the sequence is not. ISO 14068-1:2023 places emission reduction and removal within the subject ahead of offsetting, which means a verifier examines what was done to reduce before examining what was bought to offset.
The second failure is subject drift. A footprint quantified for one legal entity supports a claim about that entity — not about the group, not about a product line, and not about a facility. Where the claim is broader than the quantified subject, the claim fails even if the arithmetic is perfect.
The third is credit quality treated as a procurement matter. The criteria a credit must meet are technical, and the evidence sits with the registry and the project documentation rather than with the broker. Retirement in the name of the claiming entity, for the claimed period, is the minimum, and it is checked.
What is examined for each element.
| Element | Evidence a verifier expects |
|---|---|
| Subject and boundary | Written definition of the subject, its boundary, the period covered, and any exclusions with reasons. |
| Footprint | The quantification against the applicable standard, its data, its factors with sources and versions, and its uncertainty treatment. |
| Management plan | The approved plan, its targets and timeline, named responsibilities, and evidence that it predates the claim. |
| Reductions and removals | What was implemented within the subject, quantified, with the before-and-after basis and the measurement supporting it. |
| Offsetting | Registry records, project documentation, serial numbers, retirement records in the claiming entity's name, and the period the credits are applied to. |
| The public claim | The exact wording as it will be published, checked against what the evidence supports. |
Where the line sits.
Verification of carbon neutrality claims against ISO 14068-1:2023 is inside our accredited programme scope under Accreditation Schedule 1225009B. We examine the claim; we do not build it, and we do not advise on which credits to buy.
Where a claim cannot be supported on the evidence available, we say so, and we would rather say so before it is published than be cited in a document that has to be withdrawn afterwards.
Primary sources
- ISO 14068-1:2023 — Climate change management: transition to net zero — Part 1: Carbon neutrality — www.iso.org/certification.html (checked 01 September 2026)
- ISO 14064-1:2018 — organizational quantification, where the subject is an organization — www.iso.org/certification.html (checked 01 September 2026)
- ISO 14067:2018 — product carbon footprint, where the subject is a product — www.iso.org/certification.html (checked 01 September 2026)
- ISO 14064-3:2019 — verification of the resulting assertion — www.iso.org/certification.html (checked 01 September 2026)
Editorial note. Author and technical review above are editorial functions. They are separate from the independent technical review and the decision functions required under ISO/IEC 17029:2019, which apply to validation and verification engagements and not to published articles. Nothing on this page is advice on a specific engagement, and nothing here extends or replaces the accreditation records.
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Describe the claim — not the service.
Tell us what must be relied on, who will rely on it and by what date. We will confirm the correct programme, evidence requirement and responsible entity — or tell you it is outside our scope.