The integration of product durability metrics via the Product Environmental Footprint Category Rules (PEFCR) v3.1 represents a definitive mandate from the European Union, transforming product longevity from a favorable attribute into a legal compliance requirement and a primary competitive differentiator.

January, 2026

This eGuide provides a comprehensive roadmap to the product durability metrics defined in the PEFCR v3.1, including the Product Environmental Footprint (PEF), Intrinsic Durability Product Score (IDPS), and Intrinsic Durability Multiplier (IDM). It deconstructs the complex Annex V testing protocols into clear, verifiable calculations and addresses why adopting this methodology now is a 'de facto' necessity for strategic readiness ahead of the ESPR's mandatory implementation.

 

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Photo of Ayyappan Kandaswamy
Ayyappan AKS

Global Technical Director, Global Softlines

An experienced and accomplished product stewardship leader with 23 years of expertise in the apparel, leather and footwear industry. Skilled in sustainable product design, chemical management, zero discharge, and environmental health and safety compliance. Currently managing the global Softlines technical team and providing strategic guidance to clients. Former Steering Committee member of AFIRM Group. Master’s degree in chemistry and environmental sciences, and MBA in energy management.

Email: ayyappan.kandaswamy@intertek.com