There's no standard answer for CE certification timeline. It depends on which directives your product triggers, whether you go through self-declaration or Notified Body (NB) review, and how booked the lab is. Anyone who blurts out "two to four weeks" is either only counting the test days for a single directive, or hasn't factored in DoC drafting and EU Authorized Representative registration. This article breaks down the actual time for each directive one by one.
The EMC Directive is the most foundational directive in CE certification — practically any product with a circuit needs to pass it. Testing is split into conducted emissions and radiated emissions: conducted 150kHz to 30MHz, radiated 30MHz to 6GHz. Standard products get reports in 2 to 5 working days. Complex products with multi-channel switching power supplies or high-frequency clocks have a higher probability of radiated emission exceedances — one round of rectification plus retesting adds 5 to 10 days.
EMC testing doesn't require an NB — the manufacturer self-declares. Standard home appliances go through EN 55032. Vehicle head units don't fall under EN 55032 — they must go through EN 55025, the automotive EMC standard. Confirm the lab has automotive EMC qualification before submitting.
After the report is out, you still need to draft EMC technical documentation — test report, product description, circuit diagrams, BOM list — taking 1 to 2 days. From sample submission to complete technical documentation, EMC takes about 2 weeks if everything goes smoothly, or 3 to 4 weeks with one round of rectification.
II. LVD Low Voltage Directive Timeline
LVD covers products with input voltage of 50V to 1000V AC or 75V to 1500V DC for safety. T-Boxes or IVI head units powered purely by 12V or 24V vehicle supply don't fall under LVD natively. But there's a boundary condition that's easy to miss: if the T-Box comes with an external power adapter, or has a built-in lithium battery that can be charged from mains power, the charging circuit portion still needs to go through LVD plus IEC 62133 battery safety testing. You can't just slap a "vehicle product" label on it and exempt everything.
LVD testing includes dielectric strength, leakage current, grounding continuity, temperature rise, mechanical strength, and fire resistance. Standard products take 4 to 7 working days. Products with lithium batteries add IEC 62133 battery safety testing — another 5 to 8 working days.
LVD is also self-declaration, no NB needed. Technical documentation is more complex than EMC — safety assessment report, critical component list, and risk assessment table are all required. Missing any one item won't pass. From sample submission to complete documentation: 2 to 3 weeks if smooth, plus 1 week for battery products.
III. RED Wireless Equipment Directive Timeline
RED is the most time-consuming part of CE certification. Anything with WiFi, Bluetooth, cellular, or NFC goes through RED. It's split into RF, EMC, and safety — RF testing is the bulk.
RF testing covers each band: maximum power, frequency error, modulation accuracy, occupied bandwidth, spurious emissions, and frequency tolerance. WiFi tri-band (2.4G + 5G + 6G) pure testing takes 10 to 15 working days — that's pure test time, not counting rectification and retesting. Cellular products test each band separately. 5G millimeter wave requires OTA chamber time, with pure testing at 15 to 20 working days.
RED EMC follows EN 301 489, and safety follows EN 62368-1. RED-EMC and standard EMC (EN 55032) have different standard numbers, but the same prototype can be tested once under both standards — one test run produces two reports. No need to test twice separately. This is contrary to what many people understand.
Starting August 2025, new RED regulations took effect, adding EN 18031 cybersecurity documentation requirements. The internet is full of claims that "connected devices must use an NB," scaring many manufacturers into paying unnecessary NB review fees. The reality is that EN 18031 has three tiers:
·Tier 1 — EN 18031-1 for standard connected devices: if all clauses are fully met with no exemptions on password-related restrictions, the manufacturer can still self-declare via Module A. No NB needed.
·Tier 2 — EN 18031-2 covers children's wearables and privacy data.
·Tier 3 — EN 18031-3 covers financial payments.
Only Tiers 2 and 3 mandate NB involvement. Standard vehicle T-Boxes and WiFi/Bluetooth modules that don't touch sensitive privacy or payment functions can self-declare. For products that genuinely trigger NB, the review adds 2 to 4 weeks. Full RED process: pure RF takes 3 to 4 weeks; connected wireless with NB triggered takes 6 to 8 weeks.
IV. RoHS and EN 18031 Actual Timelines
RoHS governs hazardous substance restrictions. Domestic clients most commonly confuse EU RoHS with China RoHS. DEHP, BBP, DBP, and DIBP — these four phthalates — have been regulated under EU RoHS-2 for a long time. They're not new additions in 2026. The four new phthalates added in 2026 are from China's national standard GB/T 26572-2011 amendment — they have nothing to do with EU RoHS. EU RoHS-3 has not added any new restricted substances in 2026.
EN 18031 cybersecurity technical documentation is included in the RED technical documentation package for connected electronic products. Content includes asset identification, threat analysis, security requirements, and vulnerability management plans. Written in-house per the standard: 1 to 2 weeks. Without a cybersecurity engineer, hiring a third party to compile: 3 to 4 weeks.
EN 18031 and UN-R155 are not a "do both" relationship. T-Boxes supplied exclusively for OEM vehicle installation can be exempted from EN 18031 under RED 3.3(d) exemption provisions — only R155 CSMS applies. Standalone retail aftermarket T-Boxes sold directly to vehicle owners do need EN 18031. Quite a few OEMs unnecessarily ran EN 18031 for all T-Boxes and spent extra money.
V. NB Review Boundaries
When is NB actually required: EN 18031 Tier 2 and 3 (privacy and payment) products mandate NB. Medical devices Class I with sterile or measuring functions mandate NB. Wireless products without complete harmonized standards mandate NB for Module B. Standard WiFi/Bluetooth with complete harmonized standards (EN 300 328, EN 301 893, EN 301 489, etc.) use Module A self-declaration — NB is irrelevant. The Module B+C/D/F/G combination only applies to high-risk equipment without harmonized standards. Standard consumer electronics basically never need this.
NB selection affects scheduling: Smaller NBs are theoretically faster, but actual timeline depends on their case backlog.
NB rejections are mostly documentation issues, not testing problems. DoC missing EU Authorized Representative info, RoHS standard number not written, test report model number not matching actual product — any one of these means the submission is returned for supplementation, wasting a week.
VI. Total Timeline and Acceleration Methods
·Typical consumer electronics: EMC + LVD + RoHS, all self-declaration — 4 to 6 weeks if smooth.
·WiFi/Bluetooth connected products: Added RED. If NB is triggered with EN 18031 — 8 to 12 weeks. Without NB triggered — 6 to 8 weeks.
·Cellular 5G connected vehicle products: RF plus triggered NB EN 18031 — 12 to 16 weeks. Standard T-Box without NB triggered — 9 to 12 weeks.
Three ways to accelerate:
First, pre-testing. Have a third party do pre-testing before formal submission. Clear out most issues first, and the probability of passing in one round goes way up.
Second, parallel tracks. EMC and LVD can run simultaneously. RED RF and safety can also run in parallel. With sufficient lab scheduling, total timeline can be compressed by about 30%.
Third, expedited processing. Lab expedited channels compress 30% to 40% of the time, at a 30% to 50% cost premium. NBs also have priority project review batches.
One critical note: the DoC signing date must be later than the test report date — don't get this backwards. EU Authorized Representative information must appear not only on packaging and manuals, but also on the product's nameplate — either the representative's name or identification number.
For CE certification timeline and related inquiries, contact blueasia Technology Testing & Certification consultant at 13534225140 (Benson).
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