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Start here for plain-language explanations of what EPDs are, how they're built, and the standards that govern them.

Start with What Is an EPD? →
In This Section
What Is an EPD?How EPDs WorkFrom LCA to EPDEPD Standards, SimplifiedEPD vs. HPD vs. PEF vs. Carbon DeclarationsEPD Glossary
6 guides
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Fundamentals
What Is an EPD?

The core definition — what an EPD contains, why it exists, and who uses it.

6 min read
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Process
How EPDs Work

The step-by-step process from raw data to a published, verified declaration.

5 min read
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Fundamentals
From LCA to EPD

How a Life Cycle Assessment becomes the numbers inside an EPD.

5 min read
A stack of printed standards documents
Standards
EPD Standards, Simplified

A plain-language map of ISO 14025, EN 15804, ISO 21930, and PCRs — and how they relate.

5 min read
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Comparison
EPD vs. HPD vs. PEF vs. Carbon Declarations

How EPDs differ from adjacent declarations people often confuse them with.

4 min read
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Reference
EPD Glossary

Short definitions for GWP, A1–A5, Module D, cradle-to-grave, and other recurring terms.

16 min read