The Green Claims Principles: What ISO 14020 and ISO 14021 Actually Require

Quick Read

ISO 14020:2022 and ISO 14021:2016 establish the foundational principles and requirements governing all environmental claims about products, from substantiation to communication standards, yet most organisations remain unaware of these rules despite making such claims across packaging, websites, and investor materials. Understanding the architecture behind these standards—not merely following a compliance checklist—enables organisations to navigate grey-area claims more effectively and achieve genuine compliance rather than superficial adherence. The standards represent a technically sophisticated framework increasingly aligned with regulatory enforcement, positioning organisations that genuinely apply them substantially ahead of their peers.

Speeki GreenDesk™

Executive Summary

The rules exist. Most organisations simply do not know them.

Environmental claims are now made by virtually every organisation with a sustainability message. They appear on product packaging, websites, investor materials, social media, and executive communications. Yet the foundational standards that govern what those claims must be, how they must be substantiated, and what principles must underlie them remain largely unknown outside of specialist legal and standards circles.

This whitepaper provides a comprehensive guide to the two core international standards that govern all environmental claims about products:

• ISO 14020:2022 — the overarching principles and general requirements framework for all types of environmental statement and programme

• ISO 14021:2016 — the specific requirements for self-declared environmental claims (Type II environmental labelling)

Together, these standards establish a framework that is technically sophisticated, highly practical, and increasingly aligned with the legal requirements that regulators are now enforcing. An organisation that genuinely understands and applies these standards is not only compliant — it is in a substantially stronger position than the vast majority of its peers.

This whitepaper is for sustainability managers, marketing teams, legal counsel, and governance professionals who need to understand the architecture behind the rules — not just a checklist.

Understanding why these principles exist is as important as knowing what they require. An organisation that understands the architecture of the standards will be able to make better decisions about claims that sit in grey areas than one that is simply working through a compliance list.

Section 1: The ISO 14020 Family: A Map of the Standards Landscape

The ISO 14020 family of standards is the international framework for communicating the environmental aspects and impacts of products. ISO 14020:2022 — the third edition, published in December 2022 and representing a significant update from the 2000 second edition — is the core document in the family. It establishes principles and general requirements that apply to all types of environmental statement and all associated programmes.

The family structure is important to understand because different types of environmental claim are governed by different standards within the family. Using the wrong standard, or making a claim without understanding which standard applies, is itself a governance failure.

The most important distinction for most organisations is between Type I and Type II claims. Type I claims (ecolabels) involve independent third-party certification against a defined set of criteria set by a programme operator. Type II claims (self-declarations) are made directly by the organisation without mandatory third-party certification — but they must comply with ISO 14021:2016.

This distinction matters because the majority of environmental claims made by organisations in commercial communications are Type II self-declarations. The claim 'Made with 30% recycled content', 'Recyclable packaging', 'Carbon neutral product' or 'Reduced energy consumption' are all self-declared claims. They do not require third-party certification under the ISO standards framework — but they must meet every requirement of ISO 14021:2016, and they must now be made within the context of an environmental statement programme as defined by ISO 14020:2022.

The Environmental Statement Programme: A Critical New Requirement

One of the most significant changes in ISO 14020:2022 is the explicit requirement that all environmental statements — including self-declared claims — be made within the context of an environmental statement programme. This concept did not exist with the same clarity in the 2000 second edition.

An environmental statement programme, as defined in ISO 14020:2022 Clause 3.3.1, is a set of rules and procedures for providing an environmental statement. For self-declared claims, the programme is typically established by the organisation making the claim (the responsible party). But it must be documented, it must specify defined elements, and it must be available to interested parties upon request.

ISO 14020:2022 Clause 6.1.2 specifies that every environmental statement programme must define:

• The programme owner and operator

• The type of environmental statement (self-declared claim, ecolabel, EPD, footprint communication, or other)

• The extent to which interested parties are involved in development and operation

• The scope of the programme, including the subject matter and intended audiences

• The specified requirements and criteria that the subject matter must fulfil

• Data quality criteria and quantification methodologies

• The impartiality, competency, and independence requirements for any conformity assessment

• The format of the environmental statement and reporting requirements

• The process for managing changes to the programme or the statements

Most organisations making environmental claims have no documented environmental statement programme. Under ISO 14020:2022, making a claim without one means the claim is made outside the requirements of the standard from the outset. A documented programme is not a bureaucratic exercise — it is the foundation that makes every claim defensible.

Section 2: The Ten Principles of ISO 14020:2022

ISO 14020:2022 Clause 4 sets out ten principles that are applicable to all environmental statements and associated programmes. These principles are not aspirational statements — they form the basis for the general and specific requirements in the ISO 14020 family. Understanding them is essential for understanding why the specific requirements in ISO 14021 exist.

ISO 14020:2022 Clause 4.1.3 states the overall aim clearly: environmental statements should encourage the demand and supply of those products that cause less stress on the environment, thereby stimulating the potential for market-driven continuous environmental improvement.

Principle 1: Credibility (Clause 4.2)

Communication of the environmental aspects and environmental impacts of products using environmental statements and associated programmes is truthful, accurate, impartial and not misleading.

Rationale (ISO 14020:2022 Clause 4.2.2): The usefulness and effectiveness of environmental statements depend upon the extent to which they convey credible, reliable and meaningful information about the environmental aspects and environmental impacts of a product in a way that is clearly defined and understandable.

This principle is the foundation of everything else. A claim that is technically accurate but selectively presented, or that emphasises a minor environmental benefit while omitting a significant environmental burden, may be truthful in a narrow sense but fails the credibility principle.

Principle 2: Evidence-Based Methodology (Clause 4.3)

Communication is based on rational and defensible methodology.

Rationale (ISO 14020:2022 Clause 4.3.2): The methodology used to provide information for the environmental statement is widely recognised and accepted or is otherwise defensible. It is appropriate to produce accurate and reproducible results.

This principle requires that the process by which a claim is generated — the testing, measurement, calculation, or assessment methodology — is itself sound. A claim about reduced energy consumption is only as good as the methodology used to measure that reduction. A claim about recycled content is only as good as the chain of custody system used to track that content.

Principle 3: Transparency and Availability (Clause 4.4)

Communication is transparent for the intended audience and interested parties. Supporting information is available upon request.

Rationale (ISO 14020:2022 Clause 4.4.2): Intended audiences need information to evaluate and compare environmental statements, determine whether they are self-declared or third-party assessed, and determine whether they are consistent with applicable standards.

This principle creates a disclosure obligation. It is not sufficient for an organisation to know internally how a claim was substantiated. The information must be accessible — at a minimum upon request, and for quantitative statements, actively communicated alongside the claim.

ISO 14021:2016 Clause 6.5.1 makes this a hard rule for self-declared claims: a claim shall only be considered verifiable if verification can be made without access to confidential business information. Claims that can only be verified using confidential business information shall not be made.

Principle 4: Confidentiality (Clause 4.5)

Communication respects the ownership and confidentiality of proprietary information and data.

Rationale (ISO 14020:2022 Clause 4.5.2): There can be limits to transparency and availability due to confidential business information, intellectual property rights, or other legal restrictions.

This principle is in tension with Principle 3 — and that tension is intentional. The standards recognise that some supporting information may be commercially sensitive. The resolution, as reflected in ISO 14021 Clause 6.5.1, is that if a claim cannot be verified without revealing confidential information, the claim should not be made. The confidentiality principle does not override the verifiability requirement.

Principle 5: Life Cycle Perspective (Clause 4.6)

Communication takes into consideration the function of the product and all relevant stages of the life cycle, including raw material acquisition, production, distribution, use and end-of-life.

Rationale (ISO 14020:2022 Clause 4.6.2): Life cycle consideration identifies the most significant environmental impacts, the potential for one impact to increase as another decreases, and the appropriate characteristics to use as the basis for environmental statements.

Two important clarifications in ISO 14020:2022 Clause 4.6: Taking a life cycle perspective does not mean that an LCA is necessary. And the extent to which the life cycle is considered varies depending on the type of programme, the nature of the statement, and the product category.

However, Principle 5 does mean that a claim cannot focus on one lifecycle stage while ignoring a significant burden elsewhere. A claim of 'made from sustainable materials' that ignores a carbon-intensive manufacturing process, or a claim of 'recyclable packaging' that ignores the fact that the product inside is single-use and non-recyclable, does not satisfy the life cycle perspective requirement.

This principle is operationalised in ISO 14021:2016 Clause 5.7(h), which requires that claims take into consideration all relevant aspects of the product life cycle to identify the potential for one impact to be increased in the process of decreasing another.

Principle 6: Environmental Performance Improvement and Innovation (Clause 4.7)

Environmental statement programmes do not inhibit innovation that maintains or has the potential to improve environmental performance.

Rationale (ISO 14020:2022 Clause 4.7.2): An approach based on performance-related requirements rather than product design or descriptive characteristics leaves maximum flexibility for technical or other innovations.

This principle explains why the standards are generally technology-neutral. A requirement to demonstrate reduced energy consumption can be met by any technology that achieves the reduction. A requirement to demonstrate recyclability can be met by any material that is actually recyclable through available systems. The standards do not prescribe how to achieve the environmental outcome, only that it must be genuine and demonstrable.

Principle 7: Accessibility and Avoidance of Unnecessary Administrative Demands (Clause 4.8)

Communication limits information requirements to only what is needed. Administrative procedures are simple, transparent and non-discriminatory.

Rationale (ISO 14020:2022 Clause 4.8.2): Organisations of all sizes should have equal opportunity to make environmental statements. Involvement is not to be restricted by procedural complexity or unreasonable information demands.

This principle is important for understanding the proportionality of evidence requirements. The standards do not require every organisation to conduct a full lifecycle assessment for every claim. They require that the evidence is appropriate to the claim being made. A simple claim about recycled content requires chain of custody documentation and a mass balance calculation. A complex comparative claim about lifecycle carbon reduction requires more.

Principle 8: Interested Parties and Consultation (Clause 4.9)

The environmental statement programme determines the extent to which consultation is undertaken with interested parties.

Rationale (ISO 14020:2022 Clause 4.9.2): To encourage acceptance and support for environmental statements it is important to gain buy-in from interested parties through identification and consultation on programme design, product categories, criteria, and format.

For self-declared claims under ISO 14021, consultation with interested parties is listed as optional in ISO 14020:2022 Table 1. For ecolabels and EPDs, it is required. However, the principle provides context for why transparency about methodology is important: other interested parties — competitors, NGOs, consumer groups, regulators — may have legitimate reasons to scrutinise a claim.

Principle 9: Voluntary (Clause 4.10)

Environmental statement programmes developed in accordance with the ISO 14020 family are voluntary.

Rationale (ISO 14020:2022 Clause 4.10.2): As International Standards are voluntary, participation in programmes fulfilling their requirements is also voluntary. This does not preclude mandatory participation if necessary for regulatory compliance or contractual provisions.

The voluntary nature of the standards is increasingly qualified by regulation. As discussed in Section 4 of this whitepaper, regulatory frameworks in the European Union, United Kingdom, Australia, and other jurisdictions are now requiring that environmental claims comply with internationally recognised standards — and compliance with those standards is not voluntary in those contexts.

Principle 10: Regionality (Clause 4.11)

Communication takes into consideration the local or regional environmental context relevant to the area where the corresponding potential environmental impacts occur.

Rationale (ISO 14020:2022 Clause 4.11.2): The extent of environmental impacts can differ depending on location and environmental conditions. It is appropriate for environmental statement programmes to consider the appropriateness of their environmental statements in the regions where they are likely to be used.

This principle directly underpins the ISO 14021 requirements for geographic qualification of claims. A recyclability claim that is accurate in one market may not be accurate in another, because the availability of collection and processing infrastructure varies by geography. The regionality principle is why ISO 14021 Clause 7.7.2 requires that claims be qualified where recycling facilities are not conveniently available to a reasonable proportion of purchasers in the area where the product is sold.

Section 3: ISO 14021: The Specific Requirements for Self-Declared Claims

ISO 14021:2016 is the standard that governs the specific Type II self-declared environmental claims that most organisations make most of the time. It builds on the principles of ISO 14020 and translates them into precise, mandatory requirements for specific claim types. This section maps the most important requirements, organised around the structure of the standard itself.

3.1 The General Requirements Framework (Clause 5)

Clause 5 of ISO 14021:2016 sets out requirements that apply to every self-declared environmental claim without exception. There are no claim types that are exempt from these requirements. They apply in addition to, not instead of, the specific claim type requirements in Clause 7.

The critical general requirements are:

3.1.1 Vague or Non-Specific Claims (Clause 5.3)

An environmental claim that is vague or non-specific or which broadly implies that a product is environmentally beneficial or environmentally benign shall not be used. The standard identifies the following as examples — explicitly noting that the list is illustrative and not exhaustive:

These terms are prohibited as standalone environmental claims. This prohibition is unconditional. It applies regardless of whether the underlying environmental performance is genuine, regardless of what other claims accompany the term, and regardless of how long the term has been in common use.

3.1.2 Claims of Sustainability (Clause 5.5 and 7.16)

ISO 14021:2016 Clause 5.5 states: 'The concepts involved in sustainability are highly complex and still under study. At this time there are no definitive methods for measuring sustainability or confirming its accomplishment. Therefore, no claim of achieving sustainability shall be made.'

Clause 7.16.1 reiterates and reinforces this: 'unqualified claims of "sustainable" and "sustainability" shall not be used.'

This is one of the most commonly violated requirements in environmental marketing. The word 'sustainable' appears in product descriptions, brand names, collection names, and corporate communications across virtually every consumer sector. Under ISO 14021, each of these uses is non-compliant unless the term refers specifically to a third-party verified scheme (such as a certified forestry or fisheries programme), and even then those schemes are outside the scope of ISO 14021 itself.

The prohibition on sustainability claims does not mean that organisations cannot communicate genuine sustainability performance. It means they cannot use the word 'sustainable' as a shorthand for overall environmental benefit. Specific, substantiated claims about specific environmental attributes — recycled content percentages, verified carbon reductions, recyclability with infrastructure confirmation — are entirely permissible. The problem is the vague word, not the genuine performance.

3.1.3 The Seventeen Specific Requirements (Clause 5.7)

Clause 5.7 lists seventeen requirements that apply to all self-declared environmental claims and any explanatory statements. The following summarises the requirements most frequently at issue in practice:

• (a) Accurate and not misleading — a technically true claim that creates a false impression is non-compliant

• (b) Substantiated and verified — documented, current, specific evidence must exist before the claim is made

• (c) Relevant to that particular product in an appropriate context

• (d) Clearly indicating whether the claim applies to the whole product, a component, packaging, or a service element

• (e) Specific as to the environmental aspect or improvement claimed

• (h) True for the final product AND taking into account all relevant lifecycle aspects — note this does not require a full LCA

• (i) Not presented to imply third-party endorsement or certification when none exists

• (k) Not literally true but misleading by omission of relevant facts

• (m) Accompanied by an explanatory statement in reasonable size and proximity where needed to prevent misunderstanding

• (n) For comparative claims: specific, with a clear basis and a temporally relevant comparison

• (q) Reassessed and updated as necessary to reflect changes in technology, competitive products, or other circumstances

• (r) Relevant to the area where the corresponding environmental impact occurs

Requirement (q) is operationally significant because it creates a continuing obligation. A claim that was accurate at the time it was made may become inaccurate if the product changes, the evidence base ages, the competitive landscape shifts, or regulatory interpretations evolve. This is the basis for evidence renewal obligations in any well-governed claims programme.

3.2 Evaluation and Claim Verification Requirements (Clause 6)

Clause 6 translates the evidence-based methodology principle into operational requirements. The key rules are:

3.2.1 Claimant Responsibility (Clause 6.1)

The claimant is responsible for evaluation and provision of data necessary for verification. Evaluation measures shall be implemented before the claim is made. The evaluation shall be fully documented and retained for the period the product is on the market and for a reasonable period thereafter.

Clause 6.5.3 specifies the minimum documentation that must be retained:

• Identification of the standard or method used

• Documentary evidence where verification cannot be made by testing the finished product

• Test results where necessary for claim verification

• If testing by an independent party: name and address of that party

• Evidence that the claim conforms with Clauses 5.7(h) and 5.7(r)

• For comparative claims: the method used, test results, and assumptions made

• Evidence of the continuing accuracy of the claim during the period on the market

3.2.2 Verifiability (Clause 6.5.1)

A self-declared environmental claim shall only be considered verifiable if verification can be made without access to confidential business information. Claims that can only be verified using confidential business information shall not be made.

This rule resolves the tension between the transparency and confidentiality principles in favour of transparency, at least for the claim itself. If an organisation's evidence for a claim is commercially sensitive and cannot be disclosed, the organisation must choose between making the claim publicly accessible and not making the claim. It cannot make the claim and rely on confidentiality to avoid independent scrutiny.

3.2.3 Evaluation of Comparative Claims (Clause 6.3)

Comparative claims are subject to additional requirements that are frequently missed in practice:

• The comparison shall only be made using a published standard or recognised test method

• The comparison shall be against comparable products serving similar functions, supplied by the same or another producer, currently or recently in the same marketplace

• Claims shall be quantified and calculated using the same units of measurement

• Claims shall be based on the same functional unit

• Claims shall be calculated over an appropriate time interval, typically 12 months

On the question of expressing percentage changes, ISO 14021:2016 Clause 6.3.3 provides specific guidance: claims may be expressed as percentages (absolute differences) or absolute values (relative improvements). Critically, the standard provides an example: for a change from 10% to 15% recycled content, the absolute difference is 5%. A claim of 'an additional 5% recycled content' is appropriate. A claim of '50% increase', while mathematically accurate, could be misleading and is disfavoured.

Clause 6.3.5 adds a further requirement that is often overlooked: improvements related to a product and its packaging shall be stated separately and shall not be aggregated. An organisation cannot combine a 20% reduction in product material use with a 30% reduction in packaging material to claim a '50% material reduction' for the combined item.

Section 4: The Regulatory Acceleration: Why the Standards Now Have Legal Force

The ISO 14020 family of standards have been in place for decades. What has changed is the regulatory environment. Regulators across multiple jurisdictions are now treating the principles and requirements of these standards as the benchmark against which the legality of environmental claims is assessed.

4.1 European Union: EmpCo Directive (Directive (EU) 2024/825)

The most important current EU instrument is Directive (EU) 2024/825 on Empowering Consumers for the Green Transition, known as the EmpCo Directive. It was adopted on 20 February 2024, published in the Official Journal on 6 March 2024, and entered into force on 27 March 2024. Member states must transpose it by 27 March 2026, and it applies from 27 September 2026.

The EmpCo Directive amends two existing instruments: Directive 2005/29/EC (Unfair Commercial Practices Directive, UCPD) and Directive 2011/83/EU (Consumer Rights Directive). It does not create a new standalone environmental claims law. Instead, it incorporates environmental and sustainability claims directly into the UCPD's prohibition on unfair commercial practices.

The EmpCo Directive adds provisions to the UCPD in two ways: targeted amendments to Articles 6 and 7 (requiring case-by-case assessment of whether a practice causes consumers to make a transactional decision they would not otherwise have taken); and new absolute prohibitions added to the UCPD's Annex I blacklist. The following summarises the most important changes for green claims practitioners, informed by the European Commission's FAQ document published 18 May 2026 (updated from the original November 2025 version).

Generic environmental claims (Annex I point 4a — blacklisted)

A 'generic environmental claim' is defined in Article 2(p) of the UCPD as amended: any environmental claim made in written or oral form where the specification of the claim is not provided in clear and prominent terms on the same medium. Generic environmental claims are blacklisted unless the trader can demonstrate 'recognised excellent environmental performance' relevant to the claim.

The Commission FAQ (Q4) makes an important precision: a claim is only 'generic' — and therefore only subject to this absolute prohibition — if the specification is absent from the same medium. The claim 'climate-friendly packaging' without further specification is generic and blacklisted. The claim '100% of energy used to produce this packaging comes from renewable sources' is a specific claim and is not caught by the blacklist. Having evidence is necessary but not sufficient; the specification must be stated clearly and prominently on the same medium as the claim.

Examples from Recital 9 of the EmpCo Directive of generic claims prohibited without demonstrated excellent performance include: 'environmentally friendly', 'eco-friendly', 'green', 'nature's friend', 'ecological', 'environmentally correct', 'climate friendly', 'gentle on the environment', 'carbon friendly', 'energy efficient', 'biodegradable', 'biobased', and similar statements that suggest excellent environmental performance. This list is illustrative, not exhaustive.

The Commission FAQ (Q7) defines the three ways a trader can demonstrate 'recognised excellent environmental performance' sufficient to use a generic claim: (1) compliance with the EU Ecolabel (Regulation (EC) No 66/2010); (2) compliance with a national or regional ISO 14024 Type I ecolabelling scheme officially recognised in the member states, such as the Nordic Swan, Blue Angel, Austrian Ecolabel, or Dutch Milieukeur; or (3) top environmental performance in accordance with other applicable Union law, such as the Energy Labelling Regulation for an 'energy efficient' claim. Note that the relevant excellent performance must be specific to the claim being made.

Sustainability labels (Annex I point 2a — blacklisted)

Displaying a voluntary sustainability label that is not based on a certification scheme or established by public authorities is blacklisted. The Commission FAQ (Q8) clarifies that a 'certification scheme' requires: independent third-party verification; publicly available requirements; monitoring by a competent, independent third party in line with international, Union or national standards (e.g. ISO 17065); transparency and openness to all traders on fair and non-discriminatory terms; and the scheme owner and the third-party monitor must be legally separate entities. Third-country public authorities' labels are also covered: only EU public authorities' labels are treated as 'established by public authorities' for the purposes of the exemption.

Offset-based climate claims (Annex I point 4c — blacklisted)

Claiming, based on the offsetting of greenhouse gas emissions, that a product has a neutral, reduced or positive impact on the environment in terms of greenhouse gas emissions is blacklisted. The Commission FAQ (Q10) provides two important clarifications. First, the prohibition applies specifically to offsetting outside the product's value chain. A claim based on the actual lifecycle emissions impact of the product within its own value chain — for example, a biomass product that genuinely stores more CO2 than it emits across its lifecycle — is not caught by the prohibition. Second, the prohibition applies to product-level claims. Claims based on offsetting at company level are not blacklisted under Annex I point 4c, though they remain subject to other UCPD provisions on a case-by-case basis.

Companies may still communicate their investments in environmental initiatives including carbon credit projects, as long as this is presented transparently and is not misleading. What is prohibited is using external offset purchases to claim a product itself has no net climate impact.

Future environmental performance claims (Article 6(2)(d) — case-by-case)

Making an environmental claim related to future environmental performance without clear, objective, publicly available and verifiable commitments, set out in a detailed and realistic implementation plan with measurable and time-bound targets, regularly verified by an independent third-party expert, is prohibited subject to case-by-case assessment. The Commission FAQ (Q12) clarifies that the expert must be independent from the trader but need not be a public authority; private auditors or consultancy companies can serve this role. The frequency of monitoring is not specified in the Directive but best practice suggests annual or biennial reviews.

Scope: what is and is not covered

The EmpCo Directive applies to B2C commercial communications, including packaging, advertising, websites, social media, and verbal communications made in the course of business. The Commission FAQ (Q1) confirms that corporate websites are more likely than not to be in scope where they address consumers, even without a direct link from a consumer-facing site. Mandatory sustainability reports under CSRD, addressed to investors, are generally outside EmpCo scope as mandatory disclosures — but where a company uses content from its sustainability report in voluntary advertising or marketing directed at consumers, that communication falls within scope. Purely visual elements (green colours, leaves, water drops) without accompanying written or oral claims cannot on their own constitute generic environmental claims, though they can contribute to the overall impression assessed under the general misleading practices provisions. Enforcement sits with national competent authorities, with penalties potentially reaching 4% of annual turnover in the relevant member state for widespread infringements.

Note on the EU Green Claims Directive: A separate proposed directive on the substantiation and communication of explicit environmental claims (the Green Claims Directive, COM(2023)0166) was the subject of legislative negotiations throughout 2023–2025. In June 2025, the European Commission announced its intention to withdraw this proposal, following political debate about its scope and administrative burden on micro-enterprises. Trilogues were suspended and the file is currently paused with no new timeline. This whitepaper reflects the status as of the date of publication. The EmpCo Directive (Directive (EU) 2024/825) remains in force and is unaffected by the Green Claims Directive withdrawal.

4.2 United Kingdom: The Digital Markets, Competition and Consumers Act 2024 and the CMA Green Claims Code

In the United Kingdom, the Competition and Markets Authority published its Green Claims Code (GCC) in September 2021. The Code sets out six principles for environmental claims: truthful and accurate; clear and unambiguous; not omitting material information; making fair and meaningful comparisons; considering the full lifecycle; and substantiated.

The legal basis for enforcement was originally the Consumer Protection from Unfair Trading Regulations 2008. Since 6 April 2025, however, the Digital Markets, Competition and Consumers Act 2024 (DMCCA) is fully in force and gives the CMA substantially enhanced direct enforcement powers. Under the DMCCA, the CMA can now investigate, determine breaches of consumer protection law, and impose administrative fines of up to 10% of global annual turnover (or £300,000, whichever is greater) without going to court.

Confirmed enforcement actions under the CMA regime include:

• ASOS, Boohoo, and George at Asda (March 2024): The CMA closed its investigation with legally binding commitments requiring clearer, specific claims, evidence-backed targets, and regular compliance reporting. The case was framed explicitly against the Green Claims Code.

• Unilever (November 2024): The CMA closed its investigation after Unilever made changes to environmental claims about certain household products.

The FCA's Sustainability Disclosure Requirements (SDR) anti-greenwashing rule, effective 31 May 2024, applies to all FCA-authorised entities. Any communication — including social media and executive statements — that makes a sustainability-related claim in connection with a financial product or service must be fair, clear, and not misleading.

4.3 Australia: ACCC and ASIC

Australia has emerged as the most active enforcement jurisdiction globally for green claims. Both the ACCC (consumer goods) and ASIC (financial products and services) have explicitly listed greenwashing as enforcement priorities and have obtained material penalties.

Confirmed enforcement outcomes include:

• Clorox Australia (April 2025): A$8.25 million penalty agreed with the Federal Court for misleading '50% Ocean Bound Plastic Recycled Bags' claims. The bags were found to contain recycled plastic collected from communities up to 50 kilometres from the shoreline, not from the ocean as implied.

• Mercer Superannuation (August 2024): Federal Court imposed A$11.3 million in penalties in ASIC's first greenwashing case, for misleading claims about the sustainable investment criteria applied to certain superannuation options.

• Vanguard Investments (2024): A$12.9 million penalty for greenwashing related to a bond fund's ESG screening claims.

• Moo Premium Foods (November 2023): Court-enforceable undertaking to the ACCC following investigation of '100% ocean plastic' representations on yoghurt tubs.

The ACCC has confirmed that greenwashing remains a priority for its 2025–2026 compliance and enforcement programme, with ongoing investigations across energy, food, fashion, and homewares sectors.

4.4 The Alignment Between the Standards and Regulation

The regulatory frameworks described above are not creating new technical requirements that the ISO standards did not already describe. They are giving the principles and requirements of ISO 14020 and ISO 14021 legal force. The prohibition on vague claims in ISO 14021 Clause 5.3 is the same prohibition that the EmpCo Directive and the CMA Green Claims Code are now enforcing. The evidence-based methodology principle of ISO 14020 Clause 4.3 is the same standard of proof that the ACCC and ASIC are applying in enforcement proceedings.

An organisation that has genuinely applied ISO 14020 and ISO 14021 is substantially compliant with the current regulatory environment. An organisation that has been using 'eco-friendly', 'sustainable', and 'green' without specific substantiation is now legally exposed in multiple jurisdictions — not because regulation has created new rules, but because it has given enforceable force to standards that have always applied.

Section 5: Applying the Principles: From Theory to Practice

The ten principles of ISO 14020 and the specific requirements of ISO 14021 translate into a set of practical disciplines for any organisation making environmental claims. This section sets out how the principles should be applied in practice.

5.1 Map Your Claims Inventory

The first step is an honest account of every environmental claim currently in use. This includes:

• All claims on product packaging, labels, and product specifications

• All claims on websites, product pages, and digital marketing materials

• All claims in advertising, social media, and press materials

• All claims in annual reports, sustainability reports, and investor communications

• All executive statements made in public contexts about the organisation's environmental performance

Most organisations, on completing this exercise, discover they have significantly more active claims than they were aware of. Terms that appear in marketing copy as general descriptors — 'sustainable products', 'eco-friendly range', 'conscious collection' — are claims under ISO 14021 and regulation. Their ubiquity in marketing language does not make them compliant.

5.2 Classify Each Claim

For each claim identified, determine which ISO 14021 Clause 7 category it falls into: Compostable (7.2), Degradable (7.3), Designed for Disassembly (7.4), Extended Life Product (7.5), Recovered Energy (7.6), Recyclable (7.7), Recycled Content (7.8), Reduced Energy Consumption (7.9), Reduced Resource Use (7.10), Reduced Water Consumption (7.11), Reusable and Refillable (7.12), Waste Reduction (7.13), Renewable Material (7.14), Renewable Energy (7.15), or a carbon/GHG claim (7.17).

Claims that do not fit any specific category fall under the general requirements of Clauses 5 and 6. These claims often carry the highest risk because the general prohibition on vague claims is absolute and the absence of a specific category does not reduce the evidence obligation.

5.3 Assess Evidence Against the Standard

For each specific claim type, ISO 14021 specifies what must be demonstrated. Three questions discipline the assessment:

• Is the evidence current? It must reflect the product as currently marketed, not a prior formulation or an earlier assessment.

• Is the evidence specific? General category data or supplier representations are not specific evidence. The evidence must apply to this product in this format.

• Is the evidence verifiable without confidential business information? If it cannot be disclosed to a third party seeking to verify the claim, the claim cannot be made.

5.4 Qualify Claims Correctly

Many claims that are substantiated in principle fail on qualification. ISO 14021 specifies that where the accuracy of a claim depends on conditions, geography, timeframe, or methodology, those qualifications must be clearly stated in close proximity to the claim.

The standard also specifies, explicitly, three qualification formulations that are insufficient:

• 'Compostable where facilities exist' — inadequate (Clause 7.2.2.4c)

• 'Recyclable where facilities exist' — inadequate (Clause 7.7.2c)

• 'Reusable/refillable where facilities exist' — inadequate (Clause 7.12.2.3c)

These formulations acknowledge the limitation but fail to convey its extent to the average purchaser. Compliance requires either demonstrating that the facilities are conveniently available to a reasonable proportion of purchasers, or providing a qualification that genuinely communicates the limited availability.

5.5 Establish and Document the Environmental Statement Programme

ISO 14020:2022 requires that every environmental statement be made within the context of a documented environmental statement programme. For organisations making self-declared claims, this programme can be established internally. Its minimum content is defined in ISO 14020:2022 Clause 6.1.2 (see Section 1 above).

A documented programme serves multiple functions: it creates a structured governance framework for claims decisions; it provides the audit trail that regulators, procurement teams, and investors may request; and it creates internal accountability for claims quality that is typically absent when claims are managed informally across marketing, sustainability, and legal teams.

5.6 Review and Update Claims Continuously

ISO 14021 Clause 5.7(q) creates a continuing obligation to reassess and update claims as necessary to reflect changes in technology, competitive products, or other circumstances that could alter their accuracy. This means that a claim management programme is never complete. Evidence ages, products change, markets evolve, and regulatory interpretations develop.

A well-governed programme includes defined evidence renewal intervals (see the evidence aging policy in ISO 14021 Clause 6.2.2, which requires documentation to be retained for the period the product is on the market and a reasonable period thereafter) and a process for reviewing active claims when significant changes occur in the product, supply chain, or market context.

Section 6: The Role of Independent Assessment

The ISO 14020 and ISO 14021 framework does not, in its base form, require third-party verification of self-declared claims. ISO 14020:2022 Table 1 lists conformity assessment as optional for self-declared claims and required for ecolabels, EPDs, and footprint communications. ISO 14021:2016 Clause 6.1 makes the claimant responsible for evaluation.

However, several important qualifications apply.

6.1 The EmpCo Directive and National Law

Directive (EU) 2024/825 (EmpCo), applying from September 2026, blacklists the display of any voluntary sustainability label not based on a certification scheme or established by public authorities. The Commission FAQ (18 May 2026, Q8) defines 'certification scheme' precisely: it requires independent third-party verification; publicly available scheme requirements; monitoring by a competent, independent third party (legally separate from the scheme owner) in line with international, Union or national standards such as ISO 17065; and the scheme must be open to all traders under fair and non-discriminatory terms.

This creates a specific and structured requirement for any organisation using a sustainability label in EU B2C communications from September 2026. The label must either be established by an EU public authority, or be backed by a certification scheme meeting these criteria. A self-declared label with no independent certification structure behind it is blacklisted — regardless of whether the underlying environmental performance is genuine.

6.2 Procurement and Finance Requirements

Independent verification of environmental claims is increasingly required in B2B contexts regardless of direct regulatory mandate. Corporate procurement programmes with ESG supplier requirements, sustainability-linked financing structures, and institutional investor due diligence processes are all increasingly requiring documented, independently verified environmental claim substantiation from counterparties.

6.3 The Credibility Gap

Perhaps most importantly, independently verified claims carry a credibility that self-assessed claims do not. ISO 14020:2022 Clause 4.4.2 recognises that intended audiences need to be able to 'determine whether the environmental statement is self-declared or has been assessed by a third party.' The presence or absence of independent assessment is a material fact about the reliability of a claim.

An organisation that has its environmental claims reviewed and assessed by an accredited independent conformity assessment body is not merely compliant with a higher standard — it is communicating something genuinely different to the market than one that has self-assessed. That difference has commercial value in contexts where credibility is at a premium.

The independence principle that underlies ISO 14020 and ISO 14021 is not a bureaucratic formality. It exists because the party with the most incentive to make a favourable environmental claim is the least reliable assessor of whether that claim is accurate. Independent assessment resolves this inherent conflict of interest.

Conclusion

Principles Before Checklists

The ISO 14020 and ISO 14021 standards are, at their core, about credibility. They exist to ensure that environmental claims communicate genuine, verifiable, and accurate information — because that is the only kind of environmental communication that can actually drive the market-based environmental improvement that is the overall aim of the entire framework.

The ten principles of ISO 14020 and the seventeen general requirements of ISO 14021 are not arbitrary rules. Each one addresses a specific failure mode in environmental marketing: vague terms that sound good but mean nothing; accurate statistics that omit material context; claims that are true in one lifecycle stage but misleading when viewed across the whole; qualifications buried in fine print; evidence that is current at the point of making the claim but is never reviewed as the product evolves.

Understanding these principles is what allows an organisation to make sound judgements about claims that sit in grey areas — claims that are not clearly covered by a specific ISO 14021 category, claims that are accurate in some markets but not others, claims that the organisation genuinely believes to be true but for which the documentation is incomplete. A compliance checklist tells you what the answer is for the easy cases. Understanding the principles tells you how to reason about the hard ones.

The regulatory environment is now enforcing these principles with financial penalties. But the argument for compliance is not primarily about avoiding fines. It is about the credibility of environmental communication itself. An organisation whose claims are accurate, substantiated, appropriately qualified, and independently assessed is communicating something genuinely different from one whose claims are marketing copy that happens not to have attracted a regulator's attention yet.

That difference matters — commercially, reputationally, and for the environmental outcomes that the whole framework is designed to support.

About Speeki GreenDesk™

Speeki GreenDesk™ is an independent environmental claims governance and verification service. Claims are assessed against ISO 14021:2016 and applicable regulatory frameworks. All determinations are issued under Speeki's ISO 17021-1 accreditation through COFRAC (France) and ANAB (United States). Speeki does not provide advisory services on the matters it assesses. Independence is the foundation of its value.

Standards and Regulatory References

The following are the primary sources on which this whitepaper is based. All ISO standard references are to the editions specified. All regulatory references are verified as of the date of this publication.

ISO 14020:2022. Environmental statements and programmes for products — Principles and general requirements. Third edition. International Organization for Standardization, Geneva. December 2022.

ISO 14021:2016. Environmental labels and declarations — Self-declared environmental claims (Type II environmental labelling). Second edition. International Organization for Standardization, Geneva. March 2016.

Directive (EU) 2024/825 of the European Parliament and of the Council of 28 February 2024 amending Directives 2005/29/EC and 2011/83/EU as regards empowering consumers for the green transition through better protection against unfair practices and through better information. Official Journal of the European Union, 6 March 2024. Entered into force 27 March 2024.

European Commission, Directorate-General for Justice and Consumers. Questions & Answers on Directive (EU) 2024/825 (ECGT/EmpCo Directive). Originally published 27 November 2025; updated 18 May 2026. Preliminary views of EC services; not a formal Commission position. Available at commission.europa.eu. Cited in this whitepaper on the definition of generic environmental claims (Q4), recognised excellent environmental performance (Q7), certification scheme requirements (Q8), offset-based climate claim prohibition (Q10), future performance claims (Q12), and scope (Q1).

Directive 2005/29/EC of the European Parliament and of the Council of 11 May 2005 concerning unfair business-to-consumer commercial practices in the internal market (Unfair Commercial Practices Directive). Official Journal of the European Union, 11 June 2005, as amended.

Competition and Markets Authority (UK). Green Claims Code. Published September 2021. cma.gov.uk

Digital Markets, Competition and Consumers Act 2024 (UK). Entered into force 6 April 2025. Grants the CMA direct enforcement powers including administrative fines of up to 10% of global annual turnover for breaches of consumer protection law including misleading environmental claims.

Australian Consumer Law (Schedule 2 to the Competition and Consumer Act 2010 (Cth)). Governs misleading or deceptive conduct including environmental claims in Australia. Maximum civil penalty for corporations: A$50 million or 30% of adjusted turnover, whichever is greater.

Australian Competition and Consumer Commission. Environmental and sustainability claims — a guide for business. Published December 2023. accc.gov.au

Australian Competition and Consumer Commission v Clorox Australia Pty Ltd (2025): A$8.25 million penalty agreed, Federal Court of Australia. Relates to misleading '50% Ocean Bound Plastic Recycled Bags' claims.

Australian Securities and Investments Commission v Mercer Superannuation (Australia) Limited [2024]: A$11.3 million penalty imposed by Federal Court of Australia for misleading ESG claims in superannuation options.

European Commission. Impact Assessment accompanying COM(2023)0166, Proposal for a Directive on substantiation and communication of explicit environmental claims. Brussels, March 2023. Note: the Green Claims Directive proposal was withdrawn by the Commission in June 2025.

Note on citation accuracy: This whitepaper cites only sources that can be independently verified. ISO standard clause references are to the editions specified. Regulatory instruments are cited by their official reference numbers. Enforcement outcomes are cited to publicly available court records, regulatory press notices, or verified legal commentary. No speculative, projected, or unverified references appear in this document.