4 practical steps to implement ISO20400
“The supply chain directors we work with are facing pressure from two directions at once. Their enterprise customers are requesting verified product environmental data. Their regulators are creating legal obligations to provide it. An EPD is what sits at the intersection of both.”
The request arrived as a line item in a supplier qualification form. A key enterprise customer, a manufacturer reporting under CSRD, required verified product environmental data from all strategic suppliers. Global warming potential per functional unit. Third-party verified. Comparable across alternatives.
Most supply chain directors can answer a cost, lead-time, or quality question within hours. An Environmental Product Declaration (EPD) request, asking for independently verified, life cycle-based environmental data for a specific product, exposed a gap that hours could not close.
That gap is widening. Corporate sustainability reporting obligations are expanding, regulatory pressure on product-level environmental claims is intensifying, and the demand for verified EPD data is moving from occasional request to standard procurement practice. For supply chain directors managing supplier relationships and product portfolios across EU and UK markets, understanding what an EPD is, who is requesting it, and what is driving that demand in 2026 is no longer optional context. It is supply chain intelligence.
What an EPD is and what makes it credible
An Environmental Product Declaration quantifies the environmental impacts of a specific product across its full life cycle: from raw material extraction through manufacturing, distribution, use, and end-of-life treatment. It is produced in accordance with ISO 14025 and for ,construction products, EN 15804:2022+A2:2019/AC:2021, registered with a recognised programme operator, publicly searchable, and independently verified. (4)
Three characteristics distinguish an EPD from a marketing claim or a self-assessment:
- Verification: An independent third party reviews the LCA methodology and data before publication. The EPD cannot be self-declared.
- Comparability: All EPDs within the same product category are produced against the same Product Category Rules (PCRs), allowing buyers to compare the global warming potential of two competing products on a like-for-like basis.
- Traceability: Every EPD links to a background report documenting the LCA methodology, data sources, and assumptions. It is auditable by customers, regulators, and certification bodies.
The International EPD® System surpassed 18,000 valid registered EPDs in 2025, with 9,395 new EPDs published in that year alone. (1) Construction currently accounts for 86% of registrations by volume. Growth is accelerating fastest in metals, textiles, and electronics, the categories where regulatory and commercial pressure is landing simultaneously.
Who is requesting EPD data and why
The sources of EPD demand are multiplying and converging on supply chain directors from several directions at once.
Enterprise customers reporting under CSRD
Companies with CSRD obligations must report Scope 3 Category 1 emissions from purchased goods and services. Data quality requirements under ESRS E1 are pushing companies away from spend-based estimates toward activity-based lifecycle data from suppliers. An EPD provides the GWP per functional unit that enables a customer to calculate their own upstream emissions with credible, auditable data. For supply chain directors, the implication is direct: your EPD data is your customer’s Scope 3 answer and increasingly, the condition on which they retain you as a supplier.
Tender qualification processes
Public and private procurement in construction, infrastructure, and manufacturing increasingly lists a valid EPD as a supplier qualification requirement. Research in the Netherlands indicates that the absence of an EPD can cost suppliers up to 14% of procurement market share in public tenders. (5) Absence is not a neutral position. It is a disqualification risk in an active process.
CBAM: Verified carbon data for EU imports
The Carbon Border Adjustment Mechanism (CBAM) applies to steel, aluminium, cement, fertilisers, hydrogen, and electricity exported to the EU. From January 2026, EU importers must hold CBAM certificates corresponding to the verified embedded carbon of imported goods. (10) Suppliers in these categories that cannot provide verified GHG data are creating direct financial liability for their EU customers. That liability translates quickly into supplier qualification decisions.
The 2026 regulatory convergence: Four drivers, one infrastructure need
The commercial pressure on EPDs reflects a regulatory convergence that is compressing timelines across sectors simultaneously.
CSDDD: Direct obligation and downstream data request
For companies within the CSDDD first wave (EU companies with more than 5,000 employees and over €1.5 billion in global turnover, and non-EU companies with over €1.5 billion in EU net turnover) national transposition deadlines begin in July 2026. (9) These companies have a direct legal obligation to identify and address environmental impacts across their supply chains. EPD and LCA data is the most credible evidence base for demonstrating that this due diligence has been conducted on purchased goods. A supply chain without verified product environmental data is a CSDDD compliance gap waiting to be identified in audit.
For companies outside the first wave: CSDDD-obligated customers will pass data requests downstream through their supplier due diligence programmes. The legal obligation falls on the customer; the commercial pressure lands on the supplier. In both cases, verified product environmental data is what the request requires.
ESPR and Digital Product Passports
The ESPR Working Plan, adopted April 2025, confirms delegated acts for textiles, steel, aluminium, tyres, and electronics between 2026 and 2029. (3) The Digital Product Passport, ESPR’s central compliance mechanism, requires machine-readable lifecycle and sustainability data accessible via QR code or equivalent data carrier. EPD data is expected to feed directly into DPP infrastructure as sector-specific delegated acts are adopted. Companies building EPD programmes now are building DPP compliance architecture at the same time.
ECGT: Claim substantiation from September 2026
The ECGT Directive prohibits generic environmental claims without verifiable, recognised evidence from September 2026. (2) “Eco-friendly,” “sustainable,” “green,” “low-carbon”, used without verification, become legal liabilities. An EPD is the instrument that backs a specific, auditable product-level environmental claim. Without one, environmental marketing language is exposure.
CPR: Mandatory for construction from 2026
Manufacturers of construction products must disclose third-party-verified GWP data via EN 15804-compliant EPDs from 2026. Full lifecycle impact reporting across all categories becomes mandatory by 2030. (7) For construction material manufacturers and their supply chains, this obligation is immediate and active.
EPDs’ integral role to your business
An EPD is not a document that sustainability teams produce for annual reporting. In 2026, it is the evidence base for commercial relationships, the response to customer procurement requirements, and the compliance infrastructure behind four converging regulatory obligations.
Supply chain directors who recognise this are not waiting for a mandatory deadline to force the issue. They are building verified product environmental data into their supplier engagement frameworks now. Using it to retain key customer relationships, secure market access, and position ahead of competitors whose product-level environmental data remains unverifiable.
Nexio Projects guides organisations through this process, from initial scope definition and life cycle assessment through EPD registration and supply chain data integration. As a registered LCA practitioner under the International EPD® System, we bring both technical rigour and commercial understanding to every engagement. The goal is not compliance as an end point. It is moving from compliance to positive impact.
Expert takeaways
- An EPD is a third-party verified, life cycle-based declaration of a product’s environmental impact. It’s independently auditable and comparable across competing products, unlike a marketing claim or self-assessment.
- Enterprise customers reporting under CSRD need verified Scope 3 Category 1 lifecycle data from their suppliers. An EPD is the most credible format for providing it, and increasingly a formal tender qualification condition.
- CSDDD first-wave obligations (5,000+ employees, €1.5bn+ turnover) require verified supply chain environmental due diligence from July 2026. Companies outside the first wave face the same commercial pressure as their customers pass data requests downstream.
- Four regulatory drivers are converging between 2026 and 2029: CSDDD, ESPR Digital Product Passport requirements, ECGT claim substantiation, and CPR mandatory embodied carbon. An EPD programme builds compliance infrastructure for all four simultaneously.
- The EPD market is growing at 12% CAGR through 2033. Growth is accelerating fastest in metals, textiles, and electronics, exactly where CBAM, ESPR, and CSDDD pressures are landing together.
EPD readiness checklist: Do you need one?
Understanding your obligation
- Are any of your key customers required to report Scope 3 Category 1 emissions under CSRD, and requesting supplier lifecycle data to do so?
- Have you received an EPD request in a procurement qualification process, RFQ, or contract renewal in the past 12 months?
- Do you export steel, aluminium, cement, fertilisers, hydrogen, or electricity to the EU, where CBAM verified carbon obligations apply to your customers from January 2026?
- Does your company fall within the CSDDD first wave (EU: 5,000+ employees, €1.5bn+ global turnover; non-EU: €1.5bn+ EU net turnover), with national transposition beginning July 2026?
- Are any of your products in ESPR priority categories (textiles, steel, aluminium, electronics, tyres, furniture) with delegated act deadlines between 2026 and 2029?
- Do you manufacture construction products, requiring EN 15804-compliant EPD-based GWP disclosure from 2026?
Understanding your current position
- Do you currently hold a valid, registered EPD for your key product lines?
- If yes: is it within its 5-year validity period and produced under the current relevant Product Category Rule?
- If no: have you identified which programme operator and PCR would apply to your product?
- Do you have access to primary production data (energy, materials, transport, waste) at the product or product-family level?
If you answered “no” to three or more questions, your EPD gap is both a compliance and commercial risk that your current timeline may not accommodate.
Nexio Projects as your EPD partner
Nexio Projects is a registered LCA practitioner under the International EPD® System. As a top boutique sustainability consultancy, named by Verdantix, our experts know the right questions to ask, and the optimal strategies across sectors.
Explore our product sustainability and net zero & decarbonisation services. Contact our team to scope your EPD programme, identify the applicable Product Category Rule, and build a timeline aligned with your customer and regulatory deadlines.
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