[Home](/)/[Resources](/resources)/IEC and CENELEC Standards for CE Marking IECCENELECEN standardsCE marking # IEC and CENELEC Standards for CE Marking: How to Find and Apply Them Behind every CE-marked product is a set of EN (European Norm) standards that define the technical requirements the product must meet. Most of these EN standards are adopted from IEC (International Electrotechnical Commission) international standards by CENELEC, the European Committee for Electrotechnical Standardization. Understanding how IEC and CENELEC relate — and how to navigate the harmonised standards system — is fundamental to building a defensible CE compliance program. Copy Link[Share on WhatsApp](https://wa.me/?text=https%3A%2F%2Fkrono-labs.com%2Fguides%2Fiec-cenelec-standards-ce) [Check my compliance requirements](/platform/new) IEC and CENELEC ## The relationship between IEC, CENELEC, and EN standards IEC (International Electrotechnical Commission) is the international body that develops and publishes electrotechnical standards covering all electrical, electronic, and related technologies. IEC standards have designations like IEC 62368-1 or IEC 61000-4-2. They are international standards that can be adopted by national and regional bodies. CENELEC (European Committee for Electrotechnical Standardization) is the European standards body for electrotechnical standardization. CENELEC adopts IEC standards as European Norms (EN standards) through the Vienna Agreement — a process that aligns European and international standards to avoid duplication. When CENELEC adopts an IEC standard, it becomes an EN standard: for example, IEC 62368-1 becomes EN 62368-1. EN standards adopted by CENELEC must be implemented as national standards by all 34 European member countries (EU member states plus several EEA and associated members) and conflicting national standards must be withdrawn. This creates a single technical standard applicable across Europe. Harmonised standards are EN standards that have been cited in the EU Official Journal under a specific EU directive or regulation. When a manufacturer applies a harmonised standard in the design and testing of a product, they benefit from presumption of conformity with the essential requirements covered by that standard — meaning the burden of proving non-compliance shifts to the regulator. Finding standards ## How to identify applicable harmonised standards for your product Finding the right harmonised standard requires working through two lists: the applicable EU directive and the current OJ citation. Step 1: Identify your applicable directives. Most electronics products are subject to at least three: Low Voltage Directive (LVD 2014/35/EU), EMC Directive (2014/30/EU), and RED (2014/53/EU) if the product has wireless. Additional directives may apply (RoHS, Battery Regulation, Machinery Regulation). Step 2: Find the harmonised standards list for each directive. The European Commission maintains these lists in the EU Official Journal. Search EUR-Lex for the most recent Implementing Decision or Commission Recommendation citing harmonised standards under your directive. The list shows each standard's reference number, title, and citation date. Step 3: Match your product to standards on the list. A standard's scope section defines which products it covers. Some standards are product-specific (EN 62368-1 for IT/AV equipment); others are generic (EN 55032 for emissions from multimedia equipment, EN 61000-3-2 for harmonic current limits). Step 4: Obtain the current version of each applicable standard from IEC, CENELEC, or your national standards body. Standards are revised periodically. Test reports must reference the version current at the time of testing, and the OJ citation specifies which version is harmonised. IEC standards globally ## Using IEC standards for multi-market compliance The IEC/CENELEC relationship enables an efficient multi-market compliance strategy. EN standards adopted from IEC are technically equivalent to or closely aligned with the underlying IEC standards used by other national and regional adoption bodies around the world. EN 62368-1 (CE/LVD) = IEC 62368-1 (global) = UL 62368-1 (US, with ANDIFs) = BS EN 62368-1 (UK). A test report from an ILAC-accredited laboratory to EN 62368-1 can be used as the primary evidence for CE marking, UKCA, and (with ANDIF supplement tests) UL listing. EN 55032 (CE/EMC emissions) is technically equivalent to CISPR 32 (international), which is the basis for most national EMC emissions standards globally. Test data from EN 55032 testing is generally directly applicable to jurisdictions that have adopted CISPR 32. Similarly, EN 61000-4-x immunity standards are adopted from IEC 61000-4-x and are recognized globally. This means a well-structured IEC-based test campaign at an ILAC-accredited laboratory can provide the technical evidence for CE marking, UKCA, and regulatory submissions in many other markets. The practical implication: plan your testing against IEC standards from the beginning, not against jurisdiction-specific standards. The jurisdiction-specific EN, BS EN, or national adoption is a policy layer on top of the same technical content. ## Learn this properly, not just for one product In-depth courses and books that teach the process — not a one-off answer you'll need to look up again next time. [Browse courses](/courses)See your free roadmap [Prefer to read? Get the book](/books) ## Frequently asked questions ### What is the difference between an IEC standard and an EN standard? IEC standards are international and not directly applicable to CE marking. EN standards are European adoptions of IEC standards (or independently developed European standards) that have been published as mandatory national standards in all 34 CENELEC member countries. Harmonised EN standards published in the EU Official Journal give presumption of conformity under specific EU directives. ### How do I access IEC and EN standards? IEC standards are sold through IEC's publication store (iec.ch) and through national standards bodies. EN standards are available from CENELEC's CEN online store or from national standards bodies (BSI for UK, DIN for Germany, AFNOR for France, etc.). Harmonised standards for CE marking cannot be freely downloaded — they must be purchased. Some countries provide free access to national standards. ### What happens if I use a standard that has been superseded? Using a superseded standard produces test evidence that does not confer presumption of conformity under current EU law. If a standard is updated and re-cited in the OJ, the old citation expires after a transition period. Products certified against the old standard must have their technical documentation updated to reference the new standard within the transition window. Continuing to sell products certified only against an expired standard can expose manufacturers to market surveillance action. ### Do IEC standards apply directly to UK UKCA certification? After Brexit, UK Designated Standards are the equivalent of EU harmonised standards for UKCA marking. UK Designated Standards are listed by OPSS (Office for Product Safety and Standards). Most are technically identical to their EN counterparts, which are in turn based on IEC standards. So the underlying technical requirements are effectively the same across CE and UKCA for most product categories. 🇪🇺 CE Marking roadmap for your product Every standard, document, and test that applies — free, no account required. See your free roadmap[ Want an expert to take your product through 🇪🇺 CE Marking compliance for you? One consultant from Krono's compliance team takes your product from requirements to legal sale, with a fixed quote before any work starts. See compliance services](/services) Related guides * [EN 62368-1 ExplainedEN 62368-1 (Audio/Video, IT and Communications Technology Equipment) replaced EN 60950-1 and EN 60065 in 2019 and is now the pr…](/guides/en-62368-1-explained) * [ETSI Standards for Wireless ProductsETSI (European Telecommunications Standards Institute) publishes the radio standards used for CE marking under the Radio Equipm…](/guides/etsi-standards-wireless) * [ANSI Standards for the US MarketANSI (American National Standards Institute) accredits organizations to develop American National Standards.](/guides/ansi-standards-us-market) * [CE Marking for Unintentional RadiatorsUnintentional radiators — digital devices that generate RF as a byproduct of operation — must comply with the EU EMC Directive.](/guides/ce-marking-unintentional-radiators) Educational resource only. Verify current requirements with qualified compliance professionals before making regulatory decisions.