Standards

Reference pages for the standards that govern EPDs. Start with EPD Standards, Simplified if you want the plain-language overview first — these pages go deeper on each individual standard.

Start with ISO 14025 →New to EPDs? Read Learn first
In This Section
ISO 14025EN 15804ISO 21930Product Category Rules (PCRs)Regional & Country Requirements
5 guides
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Standard
ISO 14025

The umbrella standard defining what a Type III environmental declaration is.

4 min read
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Standard
EN 15804

The European core PCR for construction products.

4 min read
A high-rise building under construction with a crane
Standard
ISO 21930

The international core PCR for construction products, used outside Europe.

4 min read
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Standard
Product Category Rules (PCRs)

How the product-specific layer works, and how to find the right one.

5 min read
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Regulatory
Regional & Country Requirements

EU, France, US state policies, and other market-specific requirements.

5 min read