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slug: standards-certifications-regulation
created: 2026-05-06
updated: 2026-05-13
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# 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, permit-stage audits, and market-access duties project teams have to understand. Start with [ISO 20887 Design for Disassembly and Adaptability](iso-20887.md) when the question is disassembly or adaptability vocabulary, [EU Level(s) Framework](eu-levels-framework.md) when the question is building-level assessment and reporting, [Revised EU Construction Products Regulation (CPR) Effective 2026](revised-cpr-2026.md) when the question is product-market law, [Pre-Demolition Audit (Mandated)](mandated-predemolition-audit.md) when a demolition permit or deconstruction rule controls the material inventory, [BREEAM Circularity Credits](breeam-circularity-credits.md) when a UK or European certification pathway is shaping material-efficiency, waste, and disassembly evidence, and [LEED v5 Circularity Treatment](leed-v5-circularity.md) when a North American certification pathway is shaping embodied-carbon, reuse, procurement, and waste evidence.

The same section also covers [DGNB Circular-Building Module and Building Resource Passport](dgnb-circular-module.md), [Cradle to Cradle Certified Product Standard](cradle-cradle-standard.md), [RICS Whole Life Carbon Assessment (WLCA) Standard](rics-wlca-standard.md), and [Specifying Around the Reused-Steel CE-Marking Bottleneck](reused-steel-bottleneck.md).

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- [Next: ISO 20887 Design for Disassembly and Adaptability](iso-20887.md)
- [Previous: Circular Procurement for Buildings](circular-procurement-buildings.md)