> ## Documentation Index
> Fetch the complete documentation index at: https://learn.sustainly.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# How to Turn Your LCA Results Into a Verified EPD
> Learn how to go from a finished Life Cycle Assessment (LCA) to a third-party verified Environmental Product Declaration (EPD) — step by step.
Turning an LCA into a **third-party verified Environmental Product Declaration (EPD)** is one of the most impactful ways to communicate your product’s environmental profile. While an LCA helps your team understand impacts internally, an EPD turns that work into **market-ready, standardized, and externally trusted documentation**.
This guide walks you through what it takes — from preparing your LCA to completing verification and publishing.
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## What Is an EPD?
An EPD is a structured, independently verified document that summarizes a product’s environmental impacts in a consistent, comparable format. It is built on top of your LCA but applies **strict reporting rules**, ensuring that buyers, regulators, and auditors can interpret your results with confidence.
EPDs are widely used in construction, consumer products, packaging, and public procurement because they offer:
* A harmonized communication format
* A standardized data structure
* Transparency around assumptions, boundaries, and data sources
For many organizations, an EPD is not just a sustainability deliverable — it becomes a competitive advantage.
A strong EPD builds trust by showing not just *what* your product’s footprint is, but *how* it was calculated.
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## Step 1: Finalize a High-Quality, Well-Documented LCA
Before you begin the EPD process, your LCA must be:
* **Complete** — covering the required life cycle stages for your product category
* **Transparent** — with assumptions, data sources, and boundaries clearly recorded
* **Consistent** — using a functional unit and system description aligned with reporting rules
* **Traceable** — with a clear audit trail for primary data and modelling choices
This is where accessible, data-driven sustainability tools help. Sustainly’s structured workflows make it easier for teams to build LCAs with:
* Centralized sustainability data
* AI-assisted input checks
* Aligned assumptions across departments
* Clear, shareable documentation
These foundations reduce verification delays later.
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## Step 2: Identify the Correct Product Category Rules (PCR)
Every EPD must follow a **PCR**, which defines how your product type should be modeled, which impacts to report, and how results must be formatted.
PCRs typically cover:
* The required life cycle stages
* Functional unit rules
* Reporting requirements
* Any product-specific modeling considerations
Choosing the wrong PCR can cause rework — or even make your submission invalid — so invest time here to get it right.
Use recognized EPD program libraries to find your PCR.
Ensure the PCR matches your product category, not a nearby one.
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## Step 3: Prepare Your Documentation Package
Before verification, you’ll assemble a complete set of materials that explain your LCA and justify your results. A typical package includes:
* A detailed LCA report with methodology and data sources
* A draft EPD formatted according to the PCR
* Impact tables and data summaries
* A clear interpretation section explaining the “why” behind results
* Assumptions on end-of-life, allocations, and scenarios
This preparation phase is where teams often experience delays. Using a centralized sustainability platform helps avoid inconsistent data, missing units, or undocumented assumptions.
Keep technical appendices separate from the main narrative — it makes verification and stakeholder review faster.
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## Step 4: Undergo Independent Verification
A verifier is an independent expert who checks:
* Whether your modelling aligns with the PCR
* Whether your assumptions are reasonable and well-documented
* Whether the LCA results are technically sound
* Whether your EPD report meets all formatting and disclosure requirements
Verification often includes iterative feedback rounds. Being well-organized — especially with clear version control — shortens this process dramatically.
Sustainly supports this step by helping teams keep all data, assumptions, and calculations accessible in one place, so reviewers can follow the logic without guesswork.
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## Step 5: Publish in an Official EPD Program
Once verified, your EPD is submitted to an official program for publication. Programs typically:
* Perform a compliance check
* Assign a registration number
* Publish the document publicly
* Host your EPD for a defined validity period
Once published, your EPD becomes a recognized, standardized statement of your product’s environmental profile that can be used in procurement, customer communication, and sustainability reporting.
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## Typical Timeline & Effort
| Step | Time Estimate |
| ------------------- | ------------- |
| LCA finalization | 2–4 weeks |
| PCR matching | \~1 week |
| EPD drafting | 1–2 weeks |
| Verification rounds | 2–3 weeks |
| Publication | 1–2 weeks |
These timelines vary by product complexity, data availability, and verification readiness.
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## Final Takeaway
A verified EPD transforms your LCA from an internal analysis to a **trusted, market-facing product declaration**. It strengthens credibility, supports compliance, and opens doors in markets where environmental transparency is increasingly required.
Data-driven sustainability platforms like Sustainly help teams move through this journey efficiently by providing:
* AI-assisted modeling support
* Centralized sustainability data
* Reusable templates for consistent reporting
* Collaboration features for cross-department alignment
By pairing strong LCA work with the right workflow, getting to a verified EPD becomes clearer, faster, and more accessible — whether you're a sustainability expert or just beginning.
***