The EU Product Environmental Footprint (PEF) and Organisation Environmental Footprint (OEF) methods, developed by the European Commission's Joint Research Centre and recommended under Commission Recommendation (EU) 2021/2279, are the EU's harmonised life-cycle assessment methods for measuring environmental performance across 16 impact categories. Their purpose is comparability: product-specific rules (PEFCRs) define how a category must be modelled so that two products' footprints can be meaningfully compared. PEF has been tested through pilot phases and is referenced in emerging EU policy, including ecodesign and green-claims work, though its role in final legislation remains under negotiation. For claims, PEF's importance is methodological: it is the Commission's candidate answer to "compared to what?" in environmental footprint claims. A shadow PEF label has been trialled in sectors such as apparel and food, and the method underpins the EU's product-policy work even where it is not yet mandatory. For claim assessment, PEF matters because it would replace today's patchwork of footprint calculators with one Commission-endorsed method. Using this framework does not by itself verify data accuracy, legal compliance or sustainability performance.
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