How long is an EPD valid before it must be renewed?

Five years is the standard validity under ISO 14025 and EN 15804. After that, you need either an updated LCA or a re-verification.

Can one verifier handle multiple products at once?

Yes, but each product still gets its own verification statement. Bundling can save calendar time if the products share one PCR.

Do we have to pick the program operator first?

Not strictly, but choosing early avoids template rework later because each operator has slight formatting quirks.

What happens if the verifier rejects our data quality?

You pause publication, refine the datasets, and resubmit. No credible operator will publish an EPD without a clean verifier sign-off.

Is a cradle-to-gate study enough for LEED credits?

Usually yes. LEED v4.1 accepts cradle-to-gate EPDs for the MR credit, but cradle-to-grave coverage may earn extra points under some local schemes.

From Raw Data to Published EPD in Six Moves

Step 0: Choose the Right Rulebook

Every race needs rules. For EPDs those rules are the Product Category Rules (PCR) that spell out system boundaries, impact categories, and data quality thresholds. Skip this check and nothing else will align. The PCR also tells you which life-cycle stages (A1–C4) must be covered under EN 15804 or ISO 21930.

Step 1: Map Your Product’s Life Road Trip

Define the functional unit, the reference service life, and every gate the product passes through. Think of it as taping your phone to the windshield before hitting Google Maps: without the route, mileage and fuel use stay unknown.

Step 2: Gather Plant-Level Data Without Headaches

Energy meters, purchase logs, waste tickets—this is the heavy lift. White-glove partners take on 80 percent of the chase, freeing engineers to focus on process tweaks instead of spreadsheet spelunking. Poor data is the biggest delay driver according to IBU reviewers (IBU, 2024).

Step 3: Run the LCA Model

Software crunches inputs against background databases like ecoinvent or GaBi, converting kilograms of resin or kilowatt-hours of electricity into climate and resource impacts. Calibration here is key because third-party verifiers will demand every assumption in black and white.

Step 4: Draft the EPD

Translate the LCA into the template set by your chosen program operator. Tables must match PCR headings exactly; forget a column and you will rework later. Remember to add benefits and loads beyond the system boundary if the PCR asks for Module D.

Step 5: Third-Party Verification Spells Trust

An accredited verifier audits the LCA model, data pedigree, and the EPD text. Average turnaround for one EPD is two to three weeks once documents are error-free (EPD Hub, 2025). Complex multi-site products stretch to eight weeks. Build in Q&A time—the verifier will fire off comments.

Step 6: Publish With a Program Operator

After the verifier signs off, the operator registers and uploads the declaration. Some portals batch publications weekly, others instantly. A smooth project with ready data often reaches the public database in about six months, start to finish (EPD-KSA, 2024). Fast-track services can cut that nearly in half, letting sales teams cite the EPD in bids before competitors have even booked a verifier.

Timeline and Who Does What

Manufacturer: supplies production and bill-of-materials data (weeks 1–4).
LCA Practitioner: models impacts and drafts EPD (weeks 4–8).
Third-Party Verifier: reviews and requests fixes (weeks 9–11).
Program Operator: registers and publishes (weeks 12–14).
That’s a typical sprint when data is tidy. There is many acronyms in play but the hand-offs stay simple when roles are clear.

Faster Declarations, Faster Spec Wins

Every week shaved off the schedule is a week sooner your product qualifies for LEED or BREEAM credits. A 2024 survey by the Swedish Construction Federation found that products with current EPDs appeared on shortlists 32 percent more often than those without (SCF, 2024). Speed equals visibility, and visibility converts to revenue. The workflow above shows exactly where to press the accelerator—without cutting corners on credibility.