CE is not a single certification but a collective term for a group of EU directives. A wireless product follows the RED directive alone (its 3.1(a) covers electrical safety, 3.1(b) covers EMC), with no separate LVD and EMC directives needed; only non-wireless electrical equipment such as pure appliances simultaneously needs LVD plus EMC. Toys have their own Toy Safety Directive. Miss one directive and even a full test set cannot enter the EU — newcomers most often fall here.
Each directive maps to harmonised standards, and a standard only gives a presumption of conformity if listed in the EU Official Journal (OJ). A report not in the OJ cannot support a CE declaration; the occasional case relies on a technical-file argument, which is extremely difficult and has an uncontrollable cycle — enterprises should not attempt it lightly.
Most electronics take Module A self-declaration, where the factory tests and declares itself. High-risk categories (medical, explosive-environment, some machinery) require a notified body (NB); this step cannot be skipped.
Among RED wireless products, those hitting a limitation line must take Module B plus C — NB type examination plus production assessment; those not hitting it can self-declare. The limitation lines refer to incomplete application of RED Article 3.3(a)(b)(c) harmonised standards (interoperability, emergency call, network resilience) and, from August 2025, the 3.3(d)(e)(f) cybersecurity limitation conditions. Module B alone cannot complete the job; it must pair with C, D, E or F. Picking the wrong module means full rework, and mismatching modules means re-signing agreements — another round.
Some construction products, lifts and pressure vessels have dedicated modules; check the product family before setting the path. Do not apply consumer-electronics experience to industrial goods — the two rule sets differ widely, and a mismatch reworks the whole batch.
Test at an accredited laboratory per the standards. LVD looks at insulation, withstand voltage and shock prevention; EMC looks at conducted and radiated emission and immunity; RED looks at RF and spectrum. The standard version and test items must target the product — do not mix them up, because a wrongly used old-version report is void.
Pre-test thoroughly so the formal pass is one-shot and you save big later. Remediation retesting is the main cycle variable; spending one extra week on pre-check early saves a month of drag later — a worthwhile trade.
Compile the technical file: product description, design drawings, circuit diagram and BOM, none missing. A risk-assessment report listing electrical, mechanical, thermal and functional-safety hazards and their mitigations. Test reports and manual in the sales-country language. Most directives require the technical file to be kept for at least ten years from the date the product is placed on the market (series counted from the last batch placed) — not from the discontinuance date; do not get the start point wrong.
Draft the EU Declaration of Conformity (DoC) listing product information, applicable directives and standard numbers, and the manufacturer's name and address; the manufacturer's signature makes it valid, and EU-representative information is not a statutory mandatory field. English is acceptable, but member states may require a translation, so prepare multi-language for multi-country sales.
Affix the CE mark per the required proportions on the product body, packaging and manual. On the NB path, the NB four-digit number goes next to the CE. Wrong proportion or a missing NB number both get rejected; have the label artwork checked by the lab first — do not wait until mass production is printed to find the proportion wrong, because relabelling costs more than revising a document.
For CE, the applicable directives and standards are listed completely for the client first, avoiding the costly rediscovery after testing that RED was missed and needs re-testing and rescheduling.
For multi-directive, multi-country parallel work, BlueAsia's one-stop testing and certification submits the LVD, EMC and RED samples once and compiles the documents together, queuing only once.
Projects without a notified body finish testing and documents in two to four weeks; those using a notified body add eight to twelve weeks of review scheduling at the floor — these are routine numbers, and remediation pushes them higher.
The ten-year technical-file retention is a hard requirement; many factories scatter files everywhere and cannot produce them ten years later, which is passive when inspected, and reconstructing files is time-consuming.
Follow standard updates; an old-version report cannot support a new declaration, and when the product is revised remember to reissue the documents — do not use old documents for new goods.
For multiple countries in parallel, document reuse saves plenty, but each country's language and standard differences must be listed separately; one set cannot cover all, and only a clear list avoids errors.
An overseas manufacturer without an EU importer must appoint an EU authorised representative or other economic operator per GPSR, or platforms or customs may block — but this is a market-access requirement, not a DoC validity condition; the DoC is valid with the manufacturer's signature, and the EU rep is not a mandatory add-on.
Affixing the CE mark is not the end; change the model or factory and the DoC and technical file must change with it. A mark still present but documents not kept up reads as non-compliant when checked.
Contact: King Email: king.guo@cblueasia.comAddress: Building C, Hongjingda Industrial Park, No. 107 Beihuan Road, Shiyan Street, Bao'an District, Shenzhen, China BlueAsia delivers more than service!
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