PEF and OEF evidence for EU green claims

Commission environmental-claims criteria connect substantiation to life-cycle impacts, claim scope, and scientific evidence instead of vague whole-product or whole-company statements.

Section 2

Boundaries, impact categories, and data quality

A PEF/OEF evidence record should make the boundary visible before anyone drafts claim language. For PEF, that means the product function, quantity, duration, quality level, and reference flow. For OEF, that means the organisation, reporting interval, goods and services in the product portfolio, and any excluded part of the organisation or portfolio.

The method evidence should also show how impact assessment was handled. The 16 Environmental Footprint categories are climate change, ozone depletion, particulate matter, ionising radiation, photochemical ozone formation, acidification, terrestrial eutrophication, freshwater eutrophication, marine eutrophication, freshwater ecotoxicity, human toxicity cancer effects, human toxicity non-cancer effects, land use, water use, mineral and metal resource use, and fossil resource use. Classification assigns inventory flows to categories; characterisation converts those flows into category indicators. Normalisation, weighting, and aggregation are later steps and should not hide a material adverse category.

Data quality matters because primary and secondary data choices affect reproducibility and comparability. The method expects company-specific data for foreground processes under the organisation's control and uses a Data Needs Matrix to determine requirements for other processes. Record which processes use measured company data, supplier-specific data, EF-compliant secondary datasets, generic proxies, or assumptions.

State whether the claim uses total life-cycle results, a specific life-cycle stage, a hotspot finding, or a product-portfolio result.
List the impact categories used and flag any category that is material to the claim but not well covered by the study.
Separate measured primary data, supplier data, EF-compliant datasets, generic secondary data, assumptions, and proxy data.
Keep sensitivity, completeness, consistency, hotspot, and uncertainty notes with the claim file, not only in the technical LCA report.

Sources for this answer

Understanding Product Environmental Footprint and Organisation Environmental Footprint methods

JRC describes EF method elements including functional units, product portfolios, 16 impact categories, data quality requirements, hotspot analysis, uncertainty, and verification.

Commission criteria support boundary discipline by requiring clarity on whether a claim concerns the whole product, organisation, or a specific life-cycle aspect.

Section 3

Choose the method version and category or sector rule

Check first for an applicable Category Rule (PEFCR) or Sector Rule (OEFSR). These rules narrow the choices left by the general PEF or OEF method for a defined product category or sector. They set matters such as the functional unit or product portfolio, system boundary, relevant processes, data requirements, impact interpretation, and, for PEFCRs, a representative product and benchmark where provided.

A general-method PEF or OEF study can be performed when no category or sector rule exists, using the method version in force. The JRC report says comparisons, comparative assertions, and benchmarking require a PEFCR or OEFSR because general-method choices leave results that are not directly comparable. When a rule exists, use its current version, especially for public communication, and record any validity, transition, or verification conditions in that rule.

Decision 1: product or service boundary means PEF; organisation and reporting-period boundary means OEF.
Decision 2: if an applicable PEFCR or OEFSR exists, use it and record the exact title, version, validity dates, representative product or organisation, and benchmark basis.
Decision 3: if no rule exists, use the general method version in force and do not make a comparative assertion or benchmark claim from that result.
Decision 4: if the claim concerns an environmental characteristic the EF method does not adequately cover, add a suitable source-grounded method or narrow the claim instead of treating an aggregate score as complete.
Evidence to retain: method and rule versions, goal and scope, functional unit or product portfolio, reference flow, boundary, inventory datasets, allocation and circular-footprint choices, data-quality ratings, category results, hotspot interpretation, uncertainty, report, review, and validation statement.

Sources for this answer

Understanding Product Environmental Footprint and Organisation Environmental Footprint methods

Supports the choice between PEF and OEF, use of PEFCRs and OEFSRs, representative products and benchmarks, general-method limits, public communication, and the rule that comparisons require category or sector rules.

Supports using PEFCRs and OEFSRs only where the Environmental Footprint method is suitable for the claim or label.

Section 4

How PEF/OEF evidence supports Green Claims substantiation

Under the Green Claims proposal, explicit environmental claims are meant to be backed by reliable, transparent, comparable, and verifiable information. PEF/OEF studies can help when the claim is about environmental impacts or performance that can be assessed through life-cycle methods.

The Council text says Commission delegated acts could incorporate EU Environmental Footprint methods, including PEFCRs and OEFSRs, and could give suitable use a presumption of conformity with specified substantiation requirements. Those are proposal-stage mechanisms, not current delegated acts. Suitability still has to be assessed claim by claim, and the study must support the exact wording and boundary used.

Map each claim sentence to the PEF/OEF result it depends on, such as a characterised category result, hotspot conclusion, benchmark, or verified reporting output.
Use PEFCRs or OEFSRs when a relevant rule exists and the claim depends on comparability inside that product category or sector.
For comparative claims, keep the compared products, function, assumptions, data vintage, and calculation rules aligned.
For external communication, keep verification evidence and the permitted public wording together so marketing does not outrun the technical result.

Sources for this answer

Council text supports using EU Environmental Footprint methods, PEFCRs, and OEFSRs as substantiation tools when the method is suitable for the claim or label.

Council draft amending budget No 2 to the 2026 general budget

Supports treating the Environmental Footprint provisions as proposal-stage: negotiations are at a standstill and no agreement is expected in 2026.

Commission proposal frames substantiation around reliable, comparable, verifiable information and third-party verification before explicit environmental claims are used.

Recommended next step

Turn PEF/OEF studies into claim-ready evidence

Connect each public green claim to the right footprint boundary, method version, data-quality record, verification evidence, and publication control.

Research workflow

Open Research Copilot

Answer Green Claims substantiation questions with cited source material.

Explore next step

Talk to Sorena

Discuss Green Claims implementation

Review claim scope, PEF/OEF evidence, and publication controls with Sorena.

Explore next step

Section 5

Where PEF and OEF should not be overclaimed

PEF and OEF are not a universal answer for every environmental claim. The Commission proposal says a single standard methodology was considered but not pursued because Environmental Footprint methods do not cover every relevant impact category for every product type and are not suited as the only method for some environmental aspects.

That limitation affects public wording. A study may support a claim about life-cycle greenhouse-gas reduction, impact hotspots, or a product-footprint result, while not supporting standalone claims about durability, reparability, recycled content, biodiversity, fish-stock sustainability, microplastic release, or other topics unless the evidence specifically covers those aspects.

Do not state that PEF or OEF is mandatory for all EU green claims.
Do not convert an aggregate footprint score into a broad claim that hides negative impacts in individual categories.
Do not use a product study to make an organisation-wide claim, or an organisation study to make product-level claims, without a separate boundary justification.
Do not publish future-performance, best-in-market, or excellence claims from PEF/OEF evidence unless targets, comparators, method rules, and verification support that wording.

Sources for this answer

Commission proposal explains why prescribing Environmental Footprint as a single substantiation method for all environmental claims was not pursued.

Council text treats further common-method mandates as a review topic and limits single-score environmental claims to aggregation rules established in law.

Section 6

Publication and evidence records to keep

A defensible PEF/OEF claim file should join the technical study to the publication workflow. The record should show the public claim text, the method and category rule used, the boundary and data-quality limits, the verifier or review evidence, the communication medium, and the owner who can withdraw or correct the claim.

The evidence should also include a consumer-facing explanation. Commission criteria encourage making the basis of environmental claims understandable and available, subject to confidentiality constraints, rather than relying on unexplained technical reports.

Claim register entry with product, service, organisation, market, language, medium, and publication date.
PEF/OEF study record with goal and scope, boundary, functional unit or product portfolio, datasets, assumptions, impact results, and interpretation.
PEFCR/OEFSR or method version used, including any rationale for using another recognised method when no suitable rule exists.
Verification, review, or certificate evidence tied to the exact public wording.
Consumer summary that explains the claim basis, main limits, and where supporting information can be found.
Review trigger for data changes, supplier changes, product reformulation, new method rules, or changed claim wording.

Sources for this answer

Commission criteria support keeping claim documentation, making substantiation understandable, and considering independent verification and assurance.

Commission proposal supports evidence records for substantiation, communication, verification, correction, and monitoring of explicit environmental claims.

Primary sources

References and citations

Council draft amending budget No 2 to the 2026 general budget

commission.europa.eu

Referenced sections

Commission criteria support keeping claim documentation, making substantiation understandable, and considering independent verification and assurance.

"documentation supporting the environmental claims"

data.consilium.europa.eu

Referenced sections

Supports treating the Environmental Footprint provisions as proposal-stage: negotiations are at a standstill and no agreement is expected in 2026.

data.consilium.europa.eu

Referenced sections

Council text treats further common-method mandates as a review topic and limits single-score environmental claims to aggregation rules established in law.

"mandating the use of common method"