{"id":1647,"date":"2023-03-30T11:35:08","date_gmt":"2023-03-30T09:35:08","guid":{"rendered":"https:\/\/ecochain.com\/blogs\/how-to-verify-lca-results\/"},"modified":"2025-11-10T11:13:27","modified_gmt":"2025-11-10T11:13:27","slug":"how-to-verify-lca-results","status":"publish","type":"post","link":"https:\/\/ecochain.com\/nl\/blog\/how-to-verify-lca-results\/","title":{"rendered":"How to Verify Your LCA Results"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">How do you know you can trust someone\u2019s LCA results? Well, LCA is a scientific method. And, akin to peer review in science, when verifying an LCA, independent experts give their \u201capproval stamp\u201d.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Here, you\u2019ll learn about the different protocols for verification and how to get your LCA verified.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Verification confirms:<\/span><\/h3>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The LCA complies with ISO Guidelines on LCA (14040 &amp; 14044) and additionally applicable standards and rules.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The used datasets are appropriate, conclusions make sense, and sensitive parameters are sufficiently addressed.<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Verification does not scrutinize your calculations and primary data, but raises questions if they seem invalid.\u00a0<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Which LCAs need which verification<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Not all LCAs need to be verified. Verification is mandatory for:\u00a0<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">All Environmental Product Declarations (EPDs)\u00a0 and their underlying LCAs<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Product Environmental Footprint (PEF) studies\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">LCAs used to support \u201cpublic comparative assertions\u201d (PCA) \u2013 i.e. publically saying your product is \u201cgreener\u201d than a competing product.<br \/>\n<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Verification takes approximately 5-10% of your LCA budget. Thus, when the above cases don\u2019t apply, LCAs are rarely voluntarily verified. For voluntary verification, the same protocol as in the case of PCAs applies.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Read on to learn how verification works in these three cases.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">1. Verifying EPDs<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">All <\/span><a href=\"https:\/\/ecochain.com\/blog\/environmental-product-declaration-epd-overview\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">EPDs<\/span><\/a><span style=\"font-weight: 400;\"> need to be verified. EPDs are Type 3 environmental declarations and fall under ISO14025 rules. EPDs in the EU construction sector are additionally standardized by <\/span><a href=\"https:\/\/ecochain.com\/blog\/en15804-consequences\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">EN15804+A2<\/span><\/a><span style=\"font-weight: 400;\">. However, EN15804+A2 just refers back to the ISO14025 standard regarding the verification process.\u00a0<\/span><\/p>\n<h5><span style=\"font-weight: 400;\">So, here\u2019s how to verify an EPD according to ISO14025:<\/span><\/h5>\n<p><span style=\"font-weight: 400;\">First, send your EPD and its underlying LCA to a reviewer or review panel*. They verify the LCA as described in the introduction \u2013\u00a0 the additionally applicable standards in the construction sector are EN15804+A2 or NMD Bepalingsmethode in the Netherlands.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Then, the reviewer(s) checks the EPD: does it accurately reflects the (now verified) LCA? Our tip here: get your LCA verified before creating the EPD, in case the LCA requires changes upon review.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0Finally, the EPD includes a sentence on the outcome of the verification and identity of the reviewer.<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">*The reviewer(s) may be internal or external to your organization but must be independent of and not have conflicting interests in the LCA. Under the NMD Bepalingsmethode, the reviewers must be organization-external.\u00a0<\/span><\/i><\/p>\n<h4><span style=\"font-weight: 400;\">EPD in the Dutch construction sector<\/span><\/h4>\n<p><span style=\"font-weight: 400;\">In the Netherlands, according to the <\/span><a href=\"https:\/\/milieudatabase.nl\/media\/filer_public\/89\/42\/8942d5dd-8d37-4867-859a-0bbd6d9fb574\/bepalingsmethode_milieuprestatie_bouwwerken_maart_2022_engels.pdf\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">NMD Bepalingsmethode<\/span><\/a><span style=\"font-weight: 400;\">, the<\/span><b> EPD can be taken up in the NMD database<\/b><span style=\"font-weight: 400;\"> on Dutch construction products. But only if the reviewer is one of Stichting NMD\u2019s recognized experts, and uses the NMD verification protocol (dutch: NMD Toetsingsprotocol).\u00a0<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">2. Verification and validation of PEF studies<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">PEF studies need to be \u201cverified and validated\u201d if you use any of their data for external communication. <\/span><b>Verification<\/b><span style=\"font-weight: 400;\"> checks for compliance with applicable standards, i.e. the PEF rules. <\/span><b>Validation<\/b><span style=\"font-weight: 400;\"> checks if data and conclusions make sense. For more details on the procedure and requirements for reviewers, consult the <\/span><a href=\"https:\/\/eplca.jrc.ec.europa.eu\/permalink\/PEF_method.pdf#page=118\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">PEF guidance document<\/span><\/a><span style=\"font-weight: 400;\">\u2019s section 8.\u00a0<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">3. Critical review according to ISO 14040 &amp; 14044<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">ISO14040 &amp; 14044 give guidelines on \u201ccritical review\u201d (We don\u2019t call it verification here! Different package, similar content).\u00a0 Critical review (CR) is mandatory only for LCAs that give rise to PCAs.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The reviewer(s)* can be one expert or a panel of at least 3 experts. For PCAs, a panel review is mandatory. Interested parties can additionally join the panel \u2013 this can help understanding and trust among your stakeholders.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The CR checks the LCA as described in the introduction. It also checks the transparency and completeness of your LCA report, using a checklist from ISO14044. The checklist is stricter for PCAs. Early contact with the reviewer enables you to obtain this checklist and ensure that all necessary information is included.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The CR will result in an extensive \u201creview statement\u201d** (and optionally a panel report), which you must include in your LCA report.<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">* Again, internal or external, study-independent people with knowledge of LCA.\u00a0<\/span><\/i><\/p>\n<p><i><span style=\"font-weight: 400;\">*<\/span><\/i><span style=\"font-weight: 400;\">*<\/span> <i><span style=\"font-weight: 400;\">This statement is an inventory of review comments, how they were solved, and if the reviewer approves the solutions.\u00a0<\/span><\/i><\/p>\n<h3><span style=\"font-weight: 400;\">Conclusion<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">No matter which verification protocol you follow, contacting the reviewer(s) early on is smart. In this way, you can consider their feedback during the LCA process and avoid building upon work that may not be approved later on.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Although not all LCAs mandate verification, it is particularly significant for EPDs, PEF studies, and PCAs. Ultimately, verification guarantees the credibility of LCA outcomes.<\/span><\/p>\n<p><a href=\"https:\/\/ecochain.com\/mobius\/free-trial\/\">Try the Ecochain LCA software for free with a 7-day trail.<\/a><\/p>\n<h2><strong>References<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Shaked, Shanna, et al. Environmental life cycle assessment. CRC Press, 2015.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>How do you know you can trust someone\u2019s LCA results? Well, LCA is a scientific method. And, akin to peer review in science, when verifying an LCA, independent experts give their \u201capproval stamp\u201d. Here, you\u2019ll learn about the different protocols for verification and how to get your LCA verified. Verification confirms: The LCA complies with [&hellip;]<\/p>\n","protected":false},"author":91,"featured_media":1648,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[71],"tags":[],"industries":[14,15,16,17,18],"use-cases":[21,23],"departments":[29],"class_list":["post-1647","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-life-cycle-assessment-lca","industries-apparel","industries-construction","industries-food-beverage","industries-other","industries-packaging","use-cases-lca","use-cases-sustainability-claims","departments-sustainability"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Verifying LCA results - Ecochain<\/title>\n<meta name=\"description\" content=\"Verifying an LCA guarantees the validity of its results and conclusions. 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