ISO 14020: Environmental Labels & Declarations, Types & Certification

Post by Alina Ansari | June, 2026

What Is ISO 14020?

ISO 14020 does not define the specific requirements for any individual labelling type - it establishes the common principles that all environmental labels and declarations, regardless of type, must meet to be considered credible, accurate and non-misleading. These principles include accuracy and verifiability, non-selective disclosure, scientific methodology, transparency and the requirement that claims are based on a lifecycle perspective. The standard is applicable to any organization - manufacturers, service providers, importers and retailers - making any form of environmental claim about their products or services in any market globally.

The ISO 14020 family was developed in direct response to the proliferation of unverified, inconsistent and misleading environmental claims - commonly referred to as greenwashing - that emerged as environmental awareness among consumers and industrial purchasers grew from the 1990s onwards. By establishing internationally recognized principles and requirements for environmental labelling, the standard family provides the framework within which environmental claims can be made credibly, substantiated rigorously and verified independently - providing genuine information value to purchasers rather than serving as unsubstantiated marketing assertions.

ISO 14020 helps organizations make environmental claims that are accurate, verifiable, lifecycle-based and protected from greenwashing risk - Pacific Certifications

Principles of ISO 14020 Environmental Labels

Accuracy and Non- Deception

Environmental labels and declarations must be accurate and must not mislead. A claim that is technically true but creates a false impression - for example, highlighting the absence of a substance that was never used in the product category - violates this principle even if no factually incorrect statement is made. The principle of non-deception requires that the overall impression created by the label or declaration is consistent with the actual environmental characteristics of the product.

Scientific Methodology

Claims must be based on appropriate scientific methods - not on unsupported assertions, marketing judgments, or selective data. Where measurement or testing is required to substantiate a claim, the methods used must be sound, repeatable and reproducible. This principle directly supports the verifiability requirement - a claim cannot be independently verified unless it was derived from a documented, scientifically defensible methodology.

Transparency

The basis for environmental labels and declarations - including the criteria applied, the methodology used, the data sources relied upon and the verification or certification process followed - must be transparent and available to interested parties. Transparency enables purchasers, regulators and auditors to assess the credibility of claims rather than accepting them on the strength of the label alone.

Lifecycle Perspective

Environmental labels and declarations must consider the full lifecycle of the product - from raw material extraction through manufacturing, distribution, use and end-of-life disposal. A claim that highlights a benefit at one lifecycle stage while ignoring a significant burden at another creates a misleading overall impression. The lifecycle perspective requirement is the principle most directly linked to the quantified environmental declarations of Type III product declarations.

Non-Selective Disclosure

Environmental claims must not selectively present only favorable environmental information while omitting significant adverse environmental characteristics. Where a product has multiple environmental attributes - some positive and some negative - the presentation of claims must provide a balanced and representative picture of the product's overall environmental profile.

No Barriers to Trade

Environmental labels and declarations must not be designed or applied in a manner that creates unjustified barriers to international trade - a principle that aligns with the obligations of World Trade Organization member states under the Technical Barriers to Trade Agreement.

Practical Tip: Every environmental label should be checked for accuracy, transparency, scientific support, lifecycle relevance and non-misleading presentation before publication.

ISO 14020 family Type I, II and III Declarations

Type I - Eco-Labels (ISO 14024)

Type I eco-labels are third-party certified environmental labels awarded by an independent programme operator to products that meet defined environmental performance criteria across multiple environmental categories. The defining characteristics of Type I labels are that the criteria are set by an independent body, cover a lifecycle perspective and require third-party certification before the label can be applied.

ISO 14024 governs the principles and procedures for Type I labelling programs - covering how criteria are developed and revised, how certification is conducted and how the programme maintains its integrity and credibility over time. Well-known Type I eco-label programmes operating under ISO 14024 principles include the EU Ecolabel, the Nordic Swan, the Blue Angel in Germany and the Green Star programme. For manufacturers, Type I certification requires demonstrating conformance with the programme's specific criteria through testing, documentation review and third-party audit - followed by ongoing surveillance to maintain certification.

Key characteristics:

• Independently set, lifecycle-based criteria

• Mandatory third-party certification before use

• Periodic criteria revision to maintain environmental relevance

• Applicable to product categories with defined programme criteria

• Most credible label type for consumer market communication

Type II - Self-Declared Environmental Claims (ISO 14021)

Type II environmental claims are self-declared environmental statements made by manufacturers, importers, distributors, or retailers about their own products - without independent third-party certification or verification. ISO 14021 governs the requirements that self-declared claims must meet - covering the substantiation requirements for specific claim types, the presentation and communication of claims and the requirement that claims are verifiable upon request.

ISO 14021 defines specific requirements for commonly used environmental claim types including recycled content, recyclability, compostability, degradability, reduced energy and resource consumption and reduced waste generation. For each claim type, the standard specifies how the claim must be substantiated and what testing, measurement, or documentation is required to support it. Self-declaration does not mean unverified - ISO 14021 requires that the manufacturer holds the substantiation data and can provide it to verify the claim - but it does mean that no independent body has reviewed that substantiation before the claim is made public.

Key characteristics:

• Made by the manufacturer or seller without third-party certification

• Substantiation must be documented and available on request

• Specific requirements for each claim type defined in ISO 14021

• Lower cost and faster to implement than Type I

• Higher greenwashing risk than Type I due to absence of pre-market verification

Type III - Environmental Product Declarations (ISO 14025)

Type III Environmental Product Declarations (EPDs) are quantified environmental data documents for products - providing numerical data on environmental impacts across the full lifecycle, based on a Life Cycle Assessment conducted in accordance with ISO 14040 and ISO 14044. ISO 14025 governs the principles and procedures for Type III declarations, covering the development of Product Category Rules that standardize how LCAs are conducted for a given product category, the preparation of EPD documents and the third-party verification required before an EPD is published.

EPDs are the most technically rigorous form of environmental declaration - providing stakeholders with quantified, independently verified and comparable environmental impact data across impact categories including global warming potential (carbon footprint), ozone depletion, acidification, eutrophication, water use and resource depletion. EPDs are primarily used in business-to-business contexts - in construction procurement, where Green Building certification schemes such as LEED and BREEAM award points for products with verified EPDs, in industrial purchasing and in supply chain environmental reporting.

Key characteristics:

• Quantified LCA-based environmental impact data across multiple impact categories

• Conducted in accordance with Product Category Rules for the relevant product category

• Mandatory third-party verification before publication

• Registered with an accredited Programme Operator

• Most data-rich and technically rigorous declaration type

• Primary tool for green building materials procurement and industrial supply chain transparency

Writer's view: Choose the declaration type based on your market need, claim complexity, verification expectations and buyer confidence requirements.

ISO 14020 vs ISO 14021 vs ISO 14024 vs ISO 14025

Use ISO 14020 for principles, ISO 14021 for self-declared claims, ISO 14024 for eco-labels and ISO 14025 for verified EPDs.

Claims Substantiation

Substantiation Requirements by Claim Type

ISO 14021 defines specific substantiation requirements for each recognized claim type. Recycled content claims must be based on a documented calculation methodology covering the weight or volume of pre-consumer and post-consumer recycled material incorporated in the product, using defined and consistent measurement boundaries. Recyclability claims must be substantiated by evidence that the infrastructure to collect and recycle the product exists and is accessible to a defined proportion of consumers or purchasers in the market where the claim is made.

Lifecycle Consideration

For any claim that relates to an environmental benefit, ISO 14020 requires that the claim does not create a misleading impression when the full lifecycle of the product is considered. A product claiming reduced energy consumption in use must not have achieved that reduction at the cost of significantly increased energy consumption in manufacture - unless the net lifecycle impact is genuinely favorable and that full lifecycle basis is disclosed.

Documentation and Availability

All substantiation documentation must be prepared before the claim is made public and must be available to regulators, auditors and third-party verifiers upon request. The documentation must include the methodology used, the data sources and data quality, the calculation or test results and any assumptions or limitations that affect the interpretation of the results.

Final Remark: Environmental claims should not be published until the methodology, test data, calculations, assumptions and limitations are fully documented.

Certification and Verification Process

Type I Eco-Label Certification Process

• Application to the relevant programme operator covering the product's conformance with applicable programme criteria

• Technical documentation submission including test reports, ingredient or material declarations and production process information

• Product testing by accredited laboratories against programme criteria

• Third-party audit of production facility and quality management controls

• Criteria conformance assessment by the programme operator

• Criteria revision monitoring - programme operators periodically revise criteria, requiring recertification when criteria change

Type II Self-Declaration Process

• Internal substantiation study covering the claim type requirements of ISO 14021

• Documentation of methodology, data sources, calculations and test results

• Internal review and approval by the organization's quality or environmental function

• Claim application to product, packaging, or marketing materials

• No pre-market third-party certification required

• Substantiation records retained and available for regulator or customer review

Type III EPD Verification Process

• Selection of applicable Product Category Rules (PCRs) from the relevant programme operator

• Life Cycle Assessment study conducted in accordance with ISO 14040, ISO 14044 and the applicable PCR

• EPD document prepared in accordance with ISO 14025 and the PCR

• Critical review of the LCA study by an independent third-party verifier or verification panel

• EPD verification by the programme operator's verification body

• EPD registration and publication in the programme operator's publicly accessible EPD database

• EPD validity period - typically five years - with the option to renew based on updated LCA data

Practical Tip: Select the right process early because Type I certification, Type II self-declaration and Type III EPD verification follow different evidence paths.

ISO 14020 Certification Cost

For most organizations, the substantiation cost for a well-documented Type II claim is contained within the normal product development and quality management budget.

For Type I eco-label certification, the cost depends on the specific programme, the product category, the extent of testing required by the programme criteria and the number of products in scope. For Type III EPDs, the primary cost driver is the Life Cycle Assessment study - a rigorous, data-intensive exercise that requires specialist LCA expertise - followed by the third-party verification fee and programme registration fee. Organizations pursuing ISO 14001 certification alongside an environmental labelling program will find that the ISMS evidence base - environmental aspect register, legal compliance records, environmental performance monitoring data - provides significant overlap with the substantiation data required for environmental declarations. Pacific Certifications provides transparent, fixed-fee proposals for ISO 14001 and related management system certifications.

Cost planning should consider claim type, testing needs, LCA study effort, programme fees, verification requirements and existing environmental management records.

ISO 14020 Certification Timeline

Programme operators set their own processing timelines and the laboratory testing phase - which must be completed before the conformance assessment - is often the longest single activity. Organizations with existing test data from other certification programs may be able to leverage that data to compress the testing phase.

For organizations pursuing ISO 14001 certification in parallel with an environmental labelling program, the management system certification process runs approximately 3 to 5 months from initial gap analysis through certificate issuance for an organization with an existing environmental management function. Adding ISO 9001 or ISO 50001 to an integrated environmental and quality management system program extends the timeline by 4 to 8 weeks per additional standard when pursued through an integrated audit. Assigning a dedicated environmental management coordinator, beginning substantiation data collection before the formal certification process starts and aligning the internal audit program with the certification audit schedule are the most effective ways to keep the combined program on track.

A Practical Tip from Pacific Certifications: Organizations can avoid delays by collecting substantiation data, test reports, supplier evidence and LCA inputs before starting verification.

How Pacific Certifications Can Help?

• Independent certification audits for ISO 14001, ISO 9001, ISO 50001, ISO 45001 and ISO 22301

• Integrated management system audits covering multiple standards in coordinated, efficient audit visits

• Stage 1 and Stage 2 audit execution across manufacturing, retail and service organizations

• Clear, transparent audit reports with conformity findings and certification decisions

• Issuance of internationally recognized ISO certificates upon successful audit completion

• Annual surveillance and triennial recertification audits to maintain certificate validity

Pacific Certifications does not provide consultancy - our role is strictly that of an independent auditor, ensuring your certificate carries full credibility with customers, regulators, procurement authorities and programme operators in every market you operate in.

Contact Us

To get started with your environmental management certification program or initiate your audit, contact us at support@pacificcert.com or +91-8595603096. For training programs, contact us at trainings@pacificcert.com. Visit www.pacificcert.com for more information.

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