ENANNEXES 1 to 2Annex I.Product Environmental Footprint MethodDefiniti0…2Relationship to other methods and standards..........................21.Product Environmental Footprint Category Rules(PEFCRs).......................1.1.Approach and examples for potential applications..............22.General considerations for Product Environmental Footprint(PEF)studies..2.2.Principles for Product Environmental Footprint studies.22..Phases of a Product Environmental Footprint study..3.Defining the goal(s)and scope of the Product Environmental Footprint study.......3.2.1 Functional unit and reference flow...................23.2.2.System boundary.23.2.3.Environmental Footprint impact categories....23.2.4.Additional information to be included in the PEF...3.2.5.Assumptions/limitations.24.Life Cycle Inventory.……24.l.Screening step………24.2.1.Raw material acquisition and pre-processing.............24.2.2.Manufacturing4.2.3.Distribution stage..4.2.5.End of life(including product recovery and recycling)24.4.Modelling requirements.……24.4.I Agricultural production.24.4.2.Electricity use24.4.3.Transport and logistics.24.4.4.Capital goods-infrastructure and equipment.......................24.4.5.Storage at distribution centre or retail..................4.4.6.Sampling procedure24.4.7.Modelling requirements for the use stage ............24.4.8.Recycled content and end of life modelling..................214.4.10 Greenhouse gases emissions and removals..4.4.11 Offsets........4.5 Handling multi-functional processes.............24.5.1 Allocation in animal husbandry......24.6 Data collection requirements and quality requirements4.6.1Company-specific data ......................24.6.2 Secondary data.....24.6.3 Datasets to be used.......4.6.4Cut-0ff.…4.6.5 Data quality requirements.....25.Environmental Footprint impact assessment.......25.1.Classification and characterisation................25.1.1 Classification .......5.1.2 Characterisation25.2.Normalisation and weighting..5.2.1 Normalisation of Environmental Footprint impact assessment results....25.2.2Weighting of Environmental Footprint impact assessment results.......................................6.Interpretation of Product Environmental Footprint results..6.1.Introduction...............26.2.Assessment ofthe robustness of the Product Environmental Footprint model..................................6.3.Identification ofhotspots:most relevant impact categories,life cycle stages,processes and elementary6.3.1Procedure to identify the most relevant impact categories.6.3.2Procedure to identify the most relevant life cycle stages.26.3.3Procedure to identify the most relevant processes...............26.3.4Procedure to identify the most relevant elementary flows....26.3.5Dealing with negative numbers ...26.3.6 Summary ofrequirements........................26.3.7 Example…26.4.Conclusions and recommendations....7.Product Environmental Footprint reports ............7.1.Introduction...........27.1.1.Summary…27.1.2.Aggregated EF compliant dataset....27.1.3.Main report.........7.1.4.Validation statement................27.1.5.Annexes ........7.1.6.Confidential report.....28.Verification and validation of PEF studies,reports,and communication vehicles........................2