To be E Path-labelled, each cable family has to pass a rating process based on the following criteria: Carbon Footprint (calculated according to “cradle-to-gate” approach and combined with other parameters to achieve full “cradle-to-grave” carbon footprint); Substances of Very High Concern (absence of substances that are carcinogenic, mutagenic, toxic for reproduction, or hazardous for the environment); Recyclability/Circularity (materials used in cables are potentially recyclable or products themselves are potentially fully recyclable); Recycling Input Rate (presence of recycled material in a cable, both purchased from external suppliers and reused by Prysmian itself); Environmental Benefits (low-carbon enabling products, CPR compliant cables and cables used for green energy sources); Cable Transmission Efficiency (the more efficient the cable, the more sustainable its performance. For Optical cables this means an increase in fibre density).