Sustainability Claim

“A sustainability claim begins wherever a reasonable reader is invited to believe something consequential about people or planet. ”

Sustainability claims are not limited to slogans on packaging. A certification mark, report headline, map colour, net-zero badge, supplier-status label or statement that a programme supports farmers can all create an impression about performance. The ISEAL Sustainability Claims Good Practice Guide treats claims as a governed system rather than isolated wording.

Scheme owners and organisations should define which claims are permitted, who can make them, which evidence supports them and how misuse is monitored and corrected. The first question is the subject. Is the claim about a product, ingredient, farm, company, programme, investment or sourcing relationship? A company can participate in a credible system without every product meeting the same conditions.

A certified site does not make the entire organisation certified. The second is the claim type.

An action claim describes what was done: farmers were trained, finance was provided or a standard was adopted. A performance claim describes a condition or result. An outcome or impact claim goes further by asserting change. The evidence burden rises with the claim. Structural claims require similar care.

Saying that coffee is sourced through a traceability system describes infrastructure, not automatically deforestation-free production or decent livelihoods. Membership, commitment and process should not be phrased as though they prove outcome. Scope and proportion matter. If 20 per cent of volume meets a requirement, prominent whole-product language can mislead even when a footnote contains the percentage.

Qualification should be close, clear and visible enough to shape the overall impression. Time matters.

A claim may rely on performance from a previous season or a target for a future one. Readers should be able to distinguish current condition, historical achievement and ambition. Present-tense language should not be built on expired evidence. The claim owner should be identifiable. Supply chains contain scheme owners, certificate holders, traders, brands and retailers.

Several actors may communicate from the same evidence while implying different roles. A buyer that finances a programme should not imply it delivered every result. Visual language can overclaim without words. Green colour, leaves, globes and pastoral imagery can imply broad environmental benefit. A technically accurate sentence does not cure a misleading overall presentation.

Claims should be assessed from the perspective of the intended audience. Qualification is not a dumping ground. Long methodology links and small print cannot repair a headline that creates the opposite impression. The core claim should be accurate on its own, with accessible detail supporting rather than reversing it. Governance continues after publication.

Evidence changes, certificates expire, methodologies are revised and users misuse labels. Organisations need approval, monitoring, complaints, correction and withdrawal processes. A credible claims system is capable of saying no to marketing pressure. A claim can be unpacked into components. The subject may be a product, company, farm, shipment or programme.

The attribute may concern origin, practice, certification, outcome or impact.

Scope sets the geography, value-chain stage, product share and time period. The comparator establishes what “better”, “reduced” or “improved” means. The evidence route identifies whether the claim rests on identity preservation, mass balance, book-and-claim, modelling or direct measurement. Confusion between these components creates many misleading impressions.

A company-level target does not automatically support a product claim. Participation in a programme does not prove an outcome. A certified percentage of supply does not describe the uncertified balance. Claim review should therefore begin with a structured claim statement before communication teams compress it into public language.

The discipline is to write the narrowest claim that the evidence can support, then test the impression with someone who did not design it.

What would they reasonably believe about subject, scope, outcome and responsibility? That belief is the real claim.

Practical application

Classify claims by subject, type and evidence level. Require approval rules, standard wording, scope qualification, expiry and record retention. Test words, imagery and placement together with intended audiences. Monitor use across partners and channels. Provide complaints and correction routes, withdraw claims when evidence changes and distinguish participation, action, performance, outcome and impact consistently.

Maintain a claims catalogue containing the exact approved wording, subject, scope, comparator, evidence, chain-of-custody model, channels, owner, expiry date and withdrawal rule. Test translations, images and shortened versions because they can broaden the impression. Monitor downstream use by customers and partners, correcting claims that exceed the permission originally granted.

Apply the same controls to speeches, investor presentations, recruitment, procurement documents and social media. A sustainability impression can be created without appearing on a product label. Require evidence owners to approve not only the facts but the final public impression, including headlines, imagery, proximity and omitted qualifications.

Why it matters

Claims convert sustainability evidence into market and public meaning. Weak governance can turn a valid programme into misleading communication and erode trust across the entire system.

Common misconception

A sustainability claim is often treated as a sentence that can be made accurate through legal review. The claim is the overall impression created by words, symbols, context, omissions and presentation.

Connections

Environmental Claim is a sustainability-claim category focused on environmental characteristics. Certification, Traceability and Verification can support claims but do not determine their wording. Substantiation tests the evidence, while Greenwashing describes misleading sustainability impressions.

A question worth asking

What would a reasonable reader believe your claim proves that the underlying evidence does not actually test?

Selected references

ISEAL Alliance. 2025. Sustainability Claims Good Practice Guide, Version 2. 0. ISEAL Alliance. 2024. Code of Good Practice for Sustainability Systems.

International Organization for Standardization. ISO 14020:2022. Environmental Statements and Programmes for Products - Principles and General Requirements. OECD. 2011. OECD Guidelines for Multinational Enterprises, Consumer Interests Chapter, updated 2023. Lyon, T. P. and Montgomery, A. W. 2015. The Means and End of Greenwash. Organization and Environment 28(2): 223-249.