Environmental Footprint (PEF / OEF)

The European Commission’s harmonised LCA methods for products (Product Environmental Footprint) and organisations (Organisation Environmental Footprint), set out in Commission Recommendation (EU) 2021/2279. They fix many choices ISO leaves open — impact categories, characterisation methods, data quality rules — so that studies are comparable. Sector-specific rules (PEFCRs) add detail for particular product groups; none yet exists for water reuse.