Understanding the Product Environmental Footprint (PEF) and Organisation Environmental Footprint (OEF)

What is the Product Environmental Footprint (PEF)?

The PEF is a harmonised, quantitative method for evaluating the environmental performance of goods and services throughout their life cyclefrom raw material extraction to endoflife disposal. It provides a single, comparable score that reflects impacts on climate change, resource use, water consumption, ecosystem quality and other impact categories.

Key characteristics

• Lifecycle orientation: All stages (AtoZ) are included, using the ISO 14040/44 framework.
• Standardised impact categories: Climate change, ozone depletion, acidification, eutrophication, photochemical smog, human toxicity, ecotoxicity, land use, water scarcity, fossil resource use, and mineral resource use.
• Benchmarking: Products can be compared against sectorspecific reference flows, enabling transparent communication of relative performance.
• Transparency: Methodology, data sources and assumptions are documented in a PEF report, which is publicly accessible.

When to use PEF

PEF is ideal for:

• Companies that want to demonstrate the environmental credibility of individual products.
• Public procurement entities that require environmental criteria in tender documents.
• Ecolabel schemes seeking a robust, sciencebased baseline.

What is the Organisation Environmental Footprint (OEF)?

The OEF evaluates the environmental performance of an entire organisation, covering all activities, operations and supplychain contributions. Unlike traditional corporate carbon accounting, OEF expands the scope to include multiple impact categories and aligns the results with the PEF methodology, making it possible to link organisational and product assessments.

Core elements

• Organisational boundaries: Defined by legal entity, functional unit and spatial limits.
• Scope of impacts: Same impact categories as PEF, plus optional categories such as biodiversity loss.
• Data quality tiers: From Tier1 (generic industry data) to Tier3 (highresolution, sitespecific data).
• Verification & assurance: Guidance for thirdparty validation to increase credibility.

Use cases for OEF

• Strategic sustainability planning and target setting.
• Communication of corporate environmental performance to stakeholders.
• Integration with ESG reporting frameworks (e.g., GRI, SASB, EU Taxonomy).

How the Two Methods Relate

PEF and OEF share a common methodological foundation, which means results from one can be traced to the other. An organisation that has performed an OEF can allocate its impact results to the product level and, conversely, productlevel PEF results can be aggregated to support an OEF.

• Data consistency: Using the same emission factors and impact conversion factors avoids double counting.
• Strategic alignment: Companies can set productlevel improvement targets that feed into broader organisational sustainability goals.
• Stakeholder confidence: A transparent link between product claims and corporate reports builds trust.

Steps to Conduct a PEF Study

1. Goal and scope definition: Identify the product, functional unit, system boundaries and impact categories.
2. Lifecycle inventory (LCI): Gather data on material inputs, energy use, emissions and waste for each lifecycle stage.
3. Impact assessment: Apply the PEF impact calculation method to convert inventory data into category impacts.
4. Interpretation: Analyse results, identify hotspots and perform sensitivity analysis.
5. Reporting: Compile the PEF report with methodology, data sources, assumptions and the final PEF score.

Tools such as openLCA or the European Commissions EFPIA platform can support the calculation.

Steps to Conduct an OEF Study

1. Organisational boundary setting: Define the legal entity, geographic scope and functional unit (e.g., of revenue).
2. Data collection: Compile energy, material, transport, waste and ancillary service data across all business units.
3. Allocation rules: Decide how to attribute impacts to internal activities versus external supply chain.
4. Impact calculation: Use the OEF impact methodology, which mirrors the PEF calculation steps.
5. Result interpretation: Identify the most significant impact sources, assess improvement options and set reduction targets.
6. Reporting and verification: Publish an OEF report and, if required, obtain thirdparty assurance.

Benefits of Using PEF and OEF

• Credibility: Aligns with EU policy and internationally recognised lifecycle principles.
• Comparability: Standardised impact categories enable benchmarking across products and sectors.
• Decision support: Highlights environmental hotspots for targeted innovation.
• Regulatory readiness: Prepares companies for upcoming EU Green Public Procurement and EU Taxonomy requirements.
• Market advantage: Demonstrates commitment to sustainability, meeting consumer and investor expectations.

Challenges and Practical Tips

While the methods are robust, implementation can be demanding.

Common challenges

• Data availability especially for upstream supplychain processes.
• Complexity of impact calculation requires expertise in lifecycle assessment.
• Resource intensity time and cost for detailed studies.

Practical tips

• Start with a Tier1 or Tier2 study to gain a quick overview before deepdive analysis.
• Use existing databases (e.g., ecoinvent, ELCD) to fill data gaps.
• Engage crossfunctional teams (procurement, R&D, finance) early to ensure data flow.
• Document assumptions transparently; this improves reproducibility.
• Leverage digital tools for automation of inventory collection.

Future Outlook

The European Commission is continuously refining the PEF and OEF guidelines. Upcoming revisions aim to:

• Include social impact categories for a more comprehensive sustainability assessment.
• Improve guidance for circular economy scenarios, such as productasaservice models.
• Facilitate integration with digital product passports and blockchainbased traceability.

Adopting PEF and OEF now positions organisations to adapt swiftly to these future requirements.