{"id":22537,"date":"2026-07-16T13:43:43","date_gmt":"2026-07-16T11:43:43","guid":{"rendered":"https:\/\/ecochain.com\/?p=22537"},"modified":"2026-07-16T13:43:43","modified_gmt":"2026-07-16T11:43:43","slug":"nmd-mrpi-epd-faq-netherlands","status":"publish","type":"post","link":"https:\/\/ecochain.com\/nl\/blog\/nmd-mrpi-epd-faq-netherlands\/","title":{"rendered":"Publishing EPDs in the Netherlands: 13 FAQs about NMD, MRPI and how they work together"},"content":{"rendered":"<h2><span style=\"font-weight: 400;\">Summary (TL;DR) of what this post covers:<\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If you make construction products and want your environmental data published in the Netherlands, two names come up: the NMD and MRPI. Manufacturers often aren&#8217;t sure which one they need, or whether they need both. This blog answers this confusion.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">MRPI is a program operator that verifies and publishes your EPD \u2013 in the Netherlands and internationally. The NMD (Nationale Milieudatabase) is the national database that feeds the legal building calculations behind permits, tenders and subsidies in the Netherlands.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">One route doesn&#8217;t feed the other automatically. Publishing through MRPI doesn&#8217;t place your product in the NMD, and an NMD entry isn&#8217;t the same as a published EPD. They&#8217;re separate paths with separate goals.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The route to either MRPI or NMD is a decision you make before the LCA, not after. It sets which background database, protocol and power mix you work with. If you want both NMD and MRPI, that means ecoinvent 3.9.1 from the start.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">One verified LCA can serve both NMD and MRPI routes and several output formats \u2013 if you set the data foundation up for reuse from day one. Ecochain software was built for this reality.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">NMD or MRPI: the question that often stalls EPD projects<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">You&#8217;re scoping your first EPD for the Dutch market. The LCA hasn&#8217;t started, the data is half-gathered, and someone on the call asks the question that quietly stalls the whole project: <\/span><i><span style=\"font-weight: 400;\">do we publish through the Nationale Milieudatabase (NMD), or through MRPI?<\/span><\/i><\/p>\n<p><span style=\"font-weight: 400;\">It&#8217;s a question a lot of manufacturers often reach for too late \u2013 after the LCA is already built, when changing course means redoing work.<\/span><\/p>\n<p><a href=\"https:\/\/ecochain.com\/webinars\/product-impact-meten-verifieren-en-publiceren\/\"><span style=\"font-weight: 400;\">Ecochain recently ran a webinar on this specific topic<\/span><\/a><span style=\"font-weight: 400;\">, with three experts who together cover the entire Dutch EPD landscape:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.linkedin.com\/in\/janwillemgroot\/\"><span style=\"font-weight: 400;\">Jan-Willem Groot<\/span><\/a><span style=\"font-weight: 400;\">, Director of the NMD foundation<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.linkedin.com\/in\/leooosterveen\/\"><span style=\"font-weight: 400;\">Leo Oosterveen<\/span><\/a><span style=\"font-weight: 400;\">, Managing Director of MRPI<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.linkedin.com\/in\/lex-roes-589b406\/\"><span style=\"font-weight: 400;\">Lex Roes<\/span><\/a><span style=\"font-weight: 400;\">, Senior Environmental Specialist at Ecochain, who guides manufacturers through LCAs and EPDs every day<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">This FAQ post brings together the most important insights from that conversion and the questions manufacturers ask most about the NMD and MRPI \u2013 what each one does, when you need which, and how Ecochain works with both.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">1. What are the NMD and MRPI, and what does each one do?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Short version: NMD is a database, MRPI is a publisher. They sit at different points in the same chain.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The <\/span><a href=\"https:\/\/milieudatabase.nl\/nl\/\"><span style=\"font-weight: 400;\">NMD (Nationale Milieudatabase)<\/span><\/a><span style=\"font-weight: 400;\"> is the national database for environmental data in Dutch construction. It&#8217;s the basis for the legal building calculations in the Netherlands \u2013 the numbers behind building permits, tenders and several subsidy schemes. Jan-Willem Groot described how broadly it reaches: new build and existing build, the MPG for buildings, the MKI for road and water works, the MIA\/Vamil investment schemes, and the WKB quality-assurance law.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Your product data feeds two databases within the NMD: a product database that is used in project tools like Dubocalc, BCI Gebouw, GPR Materiaal and Madaster, and a process database used by LCA software like Ecochain, which then calculate impact at the level of the whole building or civil work (product database) or on the product\/functional unit level (process database).<\/span><\/p>\n<p><a href=\"https:\/\/www.mrpi.nl\/\"><span style=\"font-weight: 400;\">MRPI<\/span><\/a><span style=\"font-weight: 400;\"> is a Dutch program operator, founded back in 1999 by the government together with Dutch companies. Its job is to verify and publish environmental product declarations (EPDs) for both the Dutch and the international market. As Leo Oosterveen put it, an EPD is a clear, verified summary of your LCA: the information you want to bring to the market, checked by a third party and published to a standard.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">So the NMD holds the data that powers Dutch building calculations, and MRPI publishes your EPD to the wider market. Two different jobs \u2013 and most manufacturers end up needing both.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">2. NMD vs MRPI: what&#8217;s the actual difference?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Here&#8217;s the side-by-side, drawn from how Jan-Willem and Leo described each one in the webinar.<\/span><\/p>\n<table>\n<thead>\n<tr>\n<th><\/th>\n<th><b>NMD (Nationale Milieudatabase)<\/b><\/th>\n<th><b>MRPI<\/b><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><b>What it is<\/b><\/td>\n<td><span style=\"font-weight: 400;\">The national environmental database for Dutch construction<\/span><\/td>\n<td><span style=\"font-weight: 400;\">A program operator that publishes EPDs (since 1999)<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Main role<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Feeds the legal building calculations in the Netherlands (MPG for buildings, MKI for civil works)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Verifies and publishes your EPD<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>What you get<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Your product recorded in the database, usable in permits, tenders and subsidies<\/span><\/td>\n<td><span style=\"font-weight: 400;\">A published EPD \u2013 a shareable, verified summary of your LCA<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Reach<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Netherlands (construction)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Netherlands + Europe and worldwide (via Eco Platform)<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Background database<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Fixed by the NMD determination method (currently ecoinvent 3.9.1)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Your choice \u2013 you can publish regardless of the database used<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Verification<\/b><\/td>\n<td><span style=\"font-weight: 400;\">NMD test protocol, via recognized NMD verifiers<\/span><\/td>\n<td><span style=\"font-weight: 400;\">MRPI General Program Instructions and verification protocol, via MRPI verifiers (many of whom are also NMD verifiers)<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Best fit<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Your product is sold and applied in Dutch construction and needs to show up in building calculations<\/span><\/td>\n<td><span style=\"font-weight: 400;\">You want to share detailed environmental data broadly, including beyond the Netherlands<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td><b>One detail that surprises people:<\/b><span style=\"font-weight: 400;\"> there&#8217;s a route that bridges both. MRPI offers an <\/span><a href=\"https:\/\/www.mrpi.nl\/wp-content\/uploads\/Verification-protocol-for-MRPI-LCA-project-report-EPD_5.3_April-2026.pdf\"><i><span style=\"font-weight: 400;\">MRPI-EPD plus<\/span><\/i><span style=\"font-weight: 400;\"> certificate<\/span><\/a><span style=\"font-weight: 400;\">, made in close cooperation with the NMD \u2013 the product sits in the NMD <\/span><i><span style=\"font-weight: 400;\">and<\/span><\/i><span style=\"font-weight: 400;\"> is published via MRPI and Eco Platform, carrying the NMD logo. More on choosing that path in question 5.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span style=\"font-weight: 400;\">3. Does publishing an EPD via MRPI automatically put it in the NMD?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">No, publishing through MRPI does not automatically land your product in the NMD. It also doesn&#8217;t work the other way around. As <\/span><a href=\"https:\/\/ecochain.com\/webinars\/product-impact-meten-verifieren-en-publiceren\/\"><span style=\"font-weight: 400;\">Leo put it plainly<\/span><\/a><span style=\"font-weight: 400;\">: you don&#8217;t automatically end up in the NMD \u2013 you choose whether you want to.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The reason this matters so much is timing. If you want to be in both, that&#8217;s a choice to make very early, ideally before you start the LCA \u2013 because the requirements for each route aren&#8217;t identical. Decide it up front and you set the LCA up correctly once. Discover it at the end and you may be reworking data to meet a requirement you didn&#8217;t plan for.<\/span><\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_22621\" aria-describedby=\"caption-attachment-22621\" style=\"width: 1619px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-22621 size-full\" src=\"https:\/\/ecochain.com\/wp-content\/uploads\/2026\/07\/Overzicht-v3-MRPI-Ecochain-en-NMD.png\" alt=\"The LCA\/EPD landscape in the Netherlands: Data flow and the roles of Ecochain, MRPI and NMD + how they relate to each other\" width=\"1619\" height=\"971\" srcset=\"https:\/\/ecochain.com\/wp-content\/uploads\/2026\/07\/Overzicht-v3-MRPI-Ecochain-en-NMD.png 1619w, https:\/\/ecochain.com\/wp-content\/uploads\/2026\/07\/Overzicht-v3-MRPI-Ecochain-en-NMD-300x180.png 300w, https:\/\/ecochain.com\/wp-content\/uploads\/2026\/07\/Overzicht-v3-MRPI-Ecochain-en-NMD-1024x614.png 1024w, https:\/\/ecochain.com\/wp-content\/uploads\/2026\/07\/Overzicht-v3-MRPI-Ecochain-en-NMD-768x461.png 768w, https:\/\/ecochain.com\/wp-content\/uploads\/2026\/07\/Overzicht-v3-MRPI-Ecochain-en-NMD-1536x921.png 1536w\" sizes=\"(max-width: 1619px) 100vw, 1619px\" \/><figcaption id=\"caption-attachment-22621\" class=\"wp-caption-text\">The LCA\/EPD landscape in the Netherlands: Data flow and the roles of Ecochain, MRPI and NMD + how they relate to each other<\/figcaption><\/figure>\n<h2><span style=\"font-weight: 400;\">4. Do I need an MRPI EPD to sell in the Netherlands, or is an NMD entry or environmental profile enough?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Whether you need an MRPI EPD, or whether an NMD entry is enough, comes down to what you&#8217;re actually trying to do. Recording your product in the NMD and publishing an EPD serve different goals.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Match your situation to one of these:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>If your product is sold and applied in a Dutch building<\/b><span style=\"font-weight: 400;\">, it needs to be in the NMD \u2013 because it gets recorded in the building permit and used in the MPG calculation. That&#8217;s the database side.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>If you want to actively share your environmental data with the market<\/b><span style=\"font-weight: 400;\"> \u2013 customers, tenders, comparison \u2013 an EPD gives you far more to communicate than a database entry alone. As Lex and Jan-Willem framed it, an EPD carries more information out into the world.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Some requirements still accept a lighter environmental profile<\/b><span style=\"font-weight: 400;\"> rather than a full EPD. But the bar is moving. Lex gave a concrete example: ProRail used to accept a product profile, and now asks for a verified EPD. The trend is toward more, not less.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">So &#8220;is an environmental profile enough?&#8221; is really &#8220;enough for whom?&#8221; Check the specific requirement you&#8217;re answering \u2013 the permit, the tender, the customer \u2013 and work back from there.<\/span><\/p>\n<p><b>Continue reading: <\/b><a href=\"https:\/\/ecochain.com\/blog\/lca-epd-pcf-dpp-choosing-the-right-product-footprint-output-for-manufacturing\/\"><span style=\"font-weight: 400;\">Which product footprint report do you need? A practical guide to choosing the right LCA output for your business<\/span><\/a><\/p>\n<h2><span style=\"font-weight: 400;\">5. NMD or MRPI: how do I decide which route to take \u2013 and why before the LCA?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Whether to go with NMD or MRPI, it\u2019s wise to decide before you brief the LCA, because the route shapes the LCA itself. Settle this at the very start of the project, before you brief the LCA. Ask yourself where you actually need to be. Choose late, and you risk building on assumptions that don&#8217;t fit where you want to publish.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A few guidelines that could help:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Netherlands-only, for building calculations?<\/b><span style=\"font-weight: 400;\"> The NMD route, with a category 1 declaration, may be all you need.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Broad market reach, including internationally?<\/b><span style=\"font-weight: 400;\"> An EPD published via MRPI (and onward via Eco Platform) gets you there.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Both?<\/b><span style=\"font-weight: 400;\"> Entirely possible \u2013 the parties have agreed how it works together through the MRPI-EPD plus certificate. The catch is that you have to plan for it. To satisfy both, your LCA needs to follow the NMD determination method <\/span><i><span style=\"font-weight: 400;\">and<\/span><\/i><span style=\"font-weight: 400;\"> the Eco Platform guidelines from the outset, including the right background database.<\/span><\/li>\n<\/ul>\n<p><a href=\"https:\/\/ecochain.com\/webinars\/product-impact-meten-verifieren-en-publiceren\/\"><span style=\"font-weight: 400;\">Leo&#8217;s point from the webinar<\/span><\/a><span style=\"font-weight: 400;\">: decide early to prevent disappointment at the end. If you&#8217;re unsure which way to go, that&#8217;s exactly the conversation to have with your LCA practitioner before any modelling begins.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">6. Category 1 vs category 2 in the NMD: can I rely on a trade-association declaration instead of our own LCA?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">You can rely on a category 2 declaration \u2013 but trade-association membership on its own doesn&#8217;t qualify you for one, and that&#8217;s the gap a lot of manufacturers miss.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The NMD works with three data categories:\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Category 1 is your own manufacturer-specific data<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Category 2 is industry or branch data, and<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Category 3 is the NMD&#8217;s own generic data used to fill gaps\u00a0<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">So where does category 2 actually come from?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As Jan-Willem explained, a category 2 declaration is created when a group of manufacturers sit down together and share their data, producing a kind of averaged picture across those companies. That shared effort is what creates the declaration. Simply paying membership dues to a branch association isn&#8217;t the same thing \u2013 you participate in a category 2 declaration when you&#8217;re part of the group that actually pools the data behind it.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">It&#8217;s a route that helps the whole sector, too: category 2 declarations help build broader coverage in the database so more construction products and works can be calculated.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">7. What&#8217;s the fastest route to getting our product into the NMD?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The fastest way to get your products into the NMD is a category 1 declaration, and once your LCA is ready, the route is short. Jan-Willem laid out the 3 steps:<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Get in touch with an LCA practitioner to build the LCA, and an LCA verifier to check it.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Aim for a category 1 NMD declaration \u2013 your own product-specific data.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Once the basic information is in the LCA and there&#8217;s a test agreement under the protocol, your product moves into the NMD quickly through the NMD&#8217;s input platform.<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">What&#8217;s changed is the NMD&#8217;s own input platform. Getting in used to take more manual work. Now the platform pulls verified data much faster and more automatically, with built-in checks that protect data quality \u2013 for example, it works with bandwidths: enter a value outside the expected range and the system flags it before it becomes a problem.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">So if your LCA is in good shape, the route in is short. The work sits upstream, in getting that LCA right and LCA automation software like <\/span><a href=\"https:\/\/ecochain.com\/product\/\"><span style=\"font-weight: 400;\">Ecochain<\/span><\/a><span style=\"font-weight: 400;\"> helps you get there.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">8. Do the NMD and MRPI verification protocols differ \u2013 and which background database does each require?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Yes, the NMD and MRPI verification protocols differ \u2013 and the background database is the biggest difference between them.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As Leo explains it during the webinar, you can publish via MRPI regardless of which background database you use. The NMD is stricter \u2013 its determination method sets the database for you. At the moment that&#8217;s ecoinvent 3.9.1. So if you want to publish via both MRPI and the NMD, you have to build your LCA on ecoinvent 3.9.1 from the start.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Two more protocol points worth knowing:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Power mix<\/b><span style=\"font-weight: 400;\">:<\/span> <span style=\"font-weight: 400;\">Because MRPI works internationally, it has a more specific protocol for the energy mix \u2013 useful if you have a factory in another country with a different power profile. The NMD looks at the Dutch power mix.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Standardized inputs<\/b><span style=\"font-weight: 400;\">: Inside the NMD&#8217;s determination method, variable data like transport to the construction site is handled with default values \u2013 for example, a default 150 km with a defined transport dataset. That keeps the playing field level, so every LCA is set up the same way.<\/span><\/li>\n<\/ul>\n<p><b>On ecoinvent versions:<\/b><span style=\"font-weight: 400;\"> people often ask why the NMD still uses 3.9.1 when 3.12 exists. Jan-Willem explained the cadence. Every year, the NMD&#8217;s technical committee reviews new ecoinvent versions \u2013 checking whether each is genuinely better and more complete before adopting it. In practice that means running a version or two behind, then moving up to a stronger database. They&#8217;ll review again this year, and inform the market when they switch.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Good to know:<\/b><span style=\"font-weight: 400;\"> If you&#8217;re subscribed to <\/span><a href=\"https:\/\/www.mrpi.nl\/mrpi-update\/\"><span style=\"font-weight: 400;\">MRPI&#8217;s newsletter,<\/span><\/a><span style=\"font-weight: 400;\"> you get notified when the program instructions, verification protocol or LCA setup rules change. You can also subscribe to <\/span><a href=\"https:\/\/milieudatabase.nl\/en\/latest\/\"><span style=\"font-weight: 400;\">NMD\u2019s newsletter<\/span><\/a><span style=\"font-weight: 400;\"> to receive monthly updates on sustainable construction, environmental performance, environmental data, policy, and other relevant news from the Dutch Environmental Database Foundation.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span style=\"font-weight: 400;\">9. How does the NMD&#8217;s method handle recycling and secondary materials (Module D)?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The NMD handles recycling and reuse through Module D, and it&#8217;s an area the NMD is actively developing.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In an LCA, the benefit of recycling and reuse lands in Module D. As Lex describes it, Module D is the credit you get back at the end of the life cycle by saving primary material through recycling or reuse. When you recycle parts of a product, that benefit returns in Module D \u2013 the last module in the lifecycle \u2013 and can be subtracted from your total impact.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">There&#8217;s a long-running debate here, and the webinar didn&#8217;t shy away from it: some manufacturers feel a full LCA can treat secondary materials unfairly through Module D. Jan-Willem was candid that the discussion has been around for a while. What he focused on was what the NMD is doing about it:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Stimulating reuse and recycling<\/b><span style=\"font-weight: 400;\"> directly in the determination method, including K and H factors that reward both supply-side and non-supply-side reuse.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>A return-guarantee manual<\/b><span style=\"font-weight: 400;\">, so that when you can credibly declare you&#8217;re using recycling or reuse \u2013 and a verifier confirms it&#8217;s provable \u2013 it improves your MKI.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>A connection with Insert<\/b><span style=\"font-weight: 400;\">, making it easier to see the MKI of a used material versus a new one, which can nudge the market toward recycled materials.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">His framing on fairness is worth keeping in mind: the NMD is material-neutral. Every material is measured the same way, on the same method \u2013 which, in his view, is the most honest basis for comparison. On the specific worry that <\/span><i><span style=\"font-weight: 400;\">using<\/span><\/i><span style=\"font-weight: 400;\"> secondary input automatically gives you a lower rating, the session stayed on the developments above rather than a single verdict \u2013 a sign this is still evolving.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">10. How long is an MRPI EPD valid, and how current must the data underneath it be?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">An MRPI EPD is valid for <\/span><b>five years<\/b><span style=\"font-weight: 400;\">. With one important condition Leo flagged: if your environmental performance gets worse compared to what&#8217;s in the EPD, you&#8217;re expected to update it as a manufacturer. The validity isn&#8217;t a licence to let a now-inaccurate figure stand.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The trickier question is the data <\/span><i><span style=\"font-weight: 400;\">used in an LCA calculation<\/span><\/i><span style=\"font-weight: 400;\"> \u2013 an EPD nearly five years old could be built on underlying data that&#8217;s closer to ten years old. Lex&#8217;s answer: the five-year validity also applies to the data used within an LCA, so in theory those datasets remain usable for five years. In practice, though, an older dataset can become hard to use \u2013 for instance, if it was never calculated against the requirements a current MKI calculation expects. Even when the original determination method no longer applies, a dataset can still be used, as long as it connects properly to all the requirements of the new LCA.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The practical takeaway: validity is a date, but usefulness depends on whether the underlying data still meets today&#8217;s requirements. Worth checking, not assuming.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">11. How long does it take to get a verified EPD for MRPI or the NMD \u2013 and will automation make it cheaper?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">A verified EPD for MRPI or the NMD can take just a few weeks \u2013 as long as your product impact data arrives clean and complete. That timeline is coming down as automation removes manual steps.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As Lex put it, generating the EPD is relatively little work <\/span><i><span style=\"font-weight: 400;\">once the LCA is fully verified<\/span><\/i><span style=\"font-weight: 400;\">. Getting to that verified LCA can be a real challenge.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">That&#8217;s because slow projects aren&#8217;t slow because the EPD is hard to produce \u2013 <\/span><a href=\"https:\/\/ecochain.com\/videos\/what-it-takes-to-run-a-product-footprinting-initiative-at-your-company\/\"><span style=\"font-weight: 400;\">they&#8217;re slow because something has to go back for rework, sometimes more than once<\/span><\/a><span style=\"font-weight: 400;\">, and those loops stretch weeks into months. Both Leo and Lex pointed to the same bottleneck.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Continue reading:<\/b> <a href=\"https:\/\/ecochain.com\/blog\/how-to-avoid-11-most-common-product-footprint-mistakes\/\"><span style=\"font-weight: 400;\">How to avoid the 11 most common product footprint mistakes on LCA, PCF and EPD projects<\/span><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">A big part of that comes down to the data you control. Many ERP systems are built for finance and logistics, not environmental data \u2013 so the price of a material is in there, but its weight often isn&#8217;t. And weight is exactly what you need to build the LCA from primary data. Closing those gaps early is one of the most useful things you can do.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">On cost and the &#8220;verification on verification&#8221; frustration \u2013 especially with data from European suppliers \u2013 Leo pointed to two things:<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">First, reducing errors at the source: catching a mistake the moment it appears, rather than discovering it three steps later.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Second, the API integration MRPI and Ecochain have built (more on that next), which removes overlapping manual work and the errors that come with it.\u00a0<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Less rework, lower cost.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Knowing the General Program Instructions and verification protocol in advance helps too \u2013 you can self-check before a third-party verifier ever sees it, so the review is quick.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">12. How does Ecochain work with MRPI and the NMD?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Ecochain works with MRPI and NMD by sitting at the start of the chain \u2013 it&#8217;s the LCA software where your product data is collected and modelled before anything gets published.Here\u2019s how that looks in practice: A manufacturer collects data \u2013 raw materials, energy, production waste, emissions, transport \u2013 and Ecochain turns it into an LCA model and calculation. That gets written up in a report, verified, and then it&#8217;s ready to publish. From there, the verified result can go to MRPI for an EPD via API, or into the NMD, or both.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ecochain&#8217;s approach to building the LCA is what makes serving multiple routes practical. Rather than calculating one product at a time from the bottom up, Ecochain collects data at company level \u2013 energy, transport, materials \u2013 and distributes it across every process and product. That models your whole portfolio in one go, using activity-based footprinting. It&#8217;s the difference between a single-product model and verification, where all the effort goes into one product at a higher cost, and a mass verification that covers your portfolio with the same assumptions at a much lower cost per product.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">When you build an LCA for the NMD route, it draws on the NMD&#8217;s own process database \u2013 industry background data (energy, transport, waste processing, based on ecoinvent) that keeps every Dutch construction LCA on a common basis. The MKI and MPG themselves aren&#8217;t produced by the LCA software. They&#8217;re calculated by the calculation instruments (MRPI is one) at building or civil-work level, using that data.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">So in plain terms: Ecochain is where the LCA is calculated. MRPI and the NMD are where it goes. The software is built to feed both.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">13. Can you publish to both MRPI and the NMD from one LCA in Ecochain?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Yes. One verified LCA in Ecochain can feed both routes \u2013 which is exactly where the double work disappears.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A verified LCA built in Ecochain can produce several outputs from one data foundation: an EPD, an environmental profile, a product carbon footprint, in formats like PDF, XLSX and Word. Because the model is set up once and reused, you&#8217;re not starting from zero each time a different route or customer asks for a different format.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">On the connection itself, Ecochain and MRPI have built a live API integration: the LCA data you create in Ecochain flows directly into MRPI&#8217;s system, with no overlapping manual re-entry. The system auto-generates the control sheet and the EPD PDF, and the third-party verifier receives all the data directly. The first tests were set for early July, followed by a pilot with <\/span><a href=\"https:\/\/ecochain.com\/customers\/how-koninklijke-van-wijhe-verf-scaled-70-verified-epds-and-turned-product-footprint-data-into-innovation-with-ecochain\/\"><span style=\"font-weight: 400;\">one manufacturer covering 70+ EPDs<\/span><\/a><span style=\"font-weight: 400;\">, then a wider rollout in the second half of the year. A connection with the NMD is on the roadmap, and the NMD and MRPI are working out how to exchange data between their two systems as well.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For the <\/span><i><span style=\"font-weight: 400;\">MRPI-EPD plus<\/span><\/i><span style=\"font-weight: 400;\"> route specifically, this is the practical payoff: one LCA, built to the right method and database from the start, can land your product in the NMD and publish your EPD broadly through MRPI \u2013 without building it twice.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">One LCA foundation for both NMD and MRPI, inside Ecochain software<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The hard part of publishing environmental data isn&#8217;t choosing between the NMD and MRPI. It&#8217;s everything upstream: getting clean data, building a verified LCA, and not having to redo it every time a new route, format or market comes along.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">That&#8217;s the case for setting your data foundation up properly once. When the LCA is right and reusable, the NMD entry, the MRPI EPD, the international publication and the formats your customers ask for all come from the same source \u2013 and the choice between routes stops being a fork in the road and becomes a setting you flip.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The software you use for that work matters precisely because it sits at the start of the chain. Ecochain models your portfolio once, works directly with MRPI through a live API integration (also has the NMD connection on its roadmap), and produces your outputs in multiple formats for multiple program operators. The goal is less rework, fewer errors, and one foundation you can keep building on as regulation keeps moving \u2013 the CPR, CSRD, and the shift toward the DoPC and Digital Product Passport.\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/ecochain.com\/demo\/\"><span style=\"font-weight: 400;\">See how Ecochain helps manufacturers publish EPDs to MRPI and the NMD from a single LCA \u2192<\/span><\/a><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Summary (TL;DR) of what this post covers: If you make construction products and want your environmental data published in the Netherlands, two names come up: the NMD and MRPI. Manufacturers often aren&#8217;t sure which one they need, or whether they need both. This blog answers this confusion. MRPI is a program operator that verifies and [&hellip;]<\/p>\n","protected":false},"author":126,"featured_media":22624,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[73,119],"tags":[],"industries":[],"use-cases":[],"departments":[],"class_list":["post-22537","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-environmental-product-declaration-epd","category-getting-started-with-product-footprinting"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>NMD or MRPI? 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