Standards, Certifications, and Regulation

ISO/TC 323, ISO 20887, Level(s), BREEAM, LEED, DGNB, Cradle to Cradle, RICS WLCA, EU CPR, ESPR, and circular-economy legislation.

Standards and regulations turn circular intent into inspectable requirements. This section tracks the rules, rating systems, and assessment frameworks that decide which product records, building data, carbon methods, circularity credits, and market-access duties project teams have to understand. Start with EU Level(s) Framework when the question is building-level assessment and reporting, Revised EU Construction Products Regulation (CPR) Effective 2026 when the question is product-market law, and LEED v5 Circularity Treatment when a North American certification pathway is shaping embodied-carbon, reuse, procurement, and waste evidence.