CB certification is not a direct market‑access certificate for customs clearance. Its core value is "one test, multiple country transfers". After completing CB testing under the IECEE CB scheme, when applying for mandatory local certification in any of the 54 member countries, safety testing generally does not need to be repeated – only national differences are supplemented. This saves both timeline and cost – a highly practical tool for exporting electrical/electronic products.
1.1 What is IECEE?
IECEE – IEC System of Conformity Assessment Schemes for Electrotechnical Equipment and Components – is an IEC conformity‑assessment body. The CB Scheme is operated by IECEE – an international test‑result mutual‑recognition mechanism – based on IEC standards. As of 2026, the scheme has 54 member countries and over 80 authorised NCBs globally.
1.2 NCB and CBTL
An NCB (National Certification Body) issues CB certificates – examples include CQC (China), TÜV (Germany), and UL (US). A CBTL (CB Testing Laboratory) is an IECEE‑recognised lab that performs testing and issues CB test reports. The logic is: CBTL tests → report to NCB → NCB reviews and issues CB certificate. Companies apply through an NCB – samples go to a CBTL.
1.3 National differences
Countries add local requirements on top of IEC base standards – known as National Differences. Common ones include voltage levels, plug types, safety clauses, and label language. Before CB testing, identify target markets – labs can run national‑difference tests simultaneously – saving later supplement work.
2. CB Certificate – Positioning
2.1 Not a market‑access certificate
CB certificates cannot be used directly for customs clearance or product labelling – they are not sales permits. They are supporting technical documents for transfer – with a valid CB certificate and report, you can apply for CE, CCC, KC, PSE, RCM, etc.
Even without CB, you can apply directly – but safety testing must be fully repeated.
2.2 Product scope
CB covers 19 categories of electrical products: IT/AV, household appliances, lighting, power tools, cables, batteries, PV modules, medical electrical equipment, etc. Pure mechanical products, high‑risk implantable medical devices, and automotive components are not covered. Check the official IECEE product list.
3. 2026 Key Standard Updates
3.1 IEC 62368-1 – 4th Edition
IEC 62368-1:2023 (4th Edition) has replaced the 2018 version. From 2026, all new projects must use the 4th Edition – old‑version reports are rejected for transfer. The 3rd Edition withdrawal date was 31 July 2024 – EU harmonised standard transition extended to 7 December 2025 – 2026 is fully 4th Edition.
3.2 IEC 61347-1 – new edition
Lighting control‑gear safety standard IEC 61347-1:2024 (4th Edition) was published in June 2024 – replacing the 2015 version. Key changes: DC voltage limit raised from 1000V to 1500V – creepage calculation base changed from RMS voltage to peak voltage. From 2026, lighting‑driver CB certifications must use the latest edition.
3.3 ACP mode
From February 2025, products involving photobiological safety (IEC 62471) or laser safety (IEC 60825-1) now follow the ACP (Additional Certification Programme) mechanism. The main product receives a CB certificate – photobiological/laser tests are not included in the CB report – a separate ACP certificate is required. LED luminaires and laser printers – without ACP, transfer to UL or CE may be blocked. ACP adds to project timelines.
4. Transfer – Practical Points
4.1 To EU CE
CB reports are strong supporting evidence for CE DoC – but CB only covers LVD safety – EMC must be tested separately. The EU is tightening TCF reviews – CB reports must include corresponding EU national differences.
4.2 To China CCC
CB reports are highly accepted for CCC – most products avoid safety retesting – only China differences are supplemented: 220V/50Hz, GB plug, Chinese labels.
Note: CCC requires factory inspection – CB does not replace it. CB is only test‑evidence – CCC certificate is still required for legal import/sale.
4.3 To Saudi SABER
Since February 2025, Saudi has fully moved to SABER. Using CB for SABER requires supplementing Saudi differences: 220V/60Hz, UK plug, SASO 2902 energy efficiency. PCoC generally has 1‑year validity – high‑risk categories are stricter. SCoC is per‑shipment with 60‑day validity. CB reports within 3 years are accepted for transfer – CE reports are not directly accepted.
4.4 To Japan PSE
CB reports support Diamond PSE (specified electrical appliances). Circular PSE (non‑specified) can use self‑declaration. Supplement Japan differences: 100V 50/60Hz, Japanese labels, Diamond PSE marking rules.
5. Certificate Maintenance
5.1 No fixed validity
IECEE rules do not set a mandatory CB validity period. In theory – as long as the standard version and product hardware are unchanged – the certificate remains valid. However, some NCBs set a 5‑year internal limit – confirm with your issuing NCB. Also, many countries require CB reports issued within 3 years for transfer.
5.2 Change management
Changes fall into two types: Type M (safety‑related – circuit structure, critical components, electrical parameters) – most NCBs limit M‑type changes to 3 times – beyond that, retesting is generally required (varies by NCB). Type A (documentation changes – manuals, labels) – filing only – no retesting. Final change classification is determined by the issuing NCB.
6. Common Misconceptions
6.1 CB = global access
CB is only a transfer document – not a market‑access certificate. Even with CB, you still need local certification – CB alone cannot pass Saudi or other customs checks.
6.2 Any lab report works
Only CBTL reports from IECEE‑listed labs are globally recognised. Ordinary third‑party IEC reports cannot be used for CB transfer. Verify lab status on the IECEE website.
6.3 CB covers EMC
CB covers electrical safety only – EMC is not within scope. For CE/FCC, EMC must be tested separately. We recommend running EMC pre‑testing alongside CB – speeding up later transfers.
7. Timeline and Cost Reference
7.1 Timeline
CB testing typically takes 2–4 weeks – varying by product. IT/AV products take 2–3 weeks, household appliances take 3–4 weeks, and lithium batteries with thermal‑runaway tests take 4–5 weeks. NCB document review and issuance takes about 1 week. Total CB timeline is 3–5 weeks. Country transfers take 2–8 weeks each – separately counted.
7.2 Costs
Costs include CBTL test fees and NCB certificate fees – affected by product category, standards, and number of national differences. Testing against one market's differences costs less – multiple markets cost more. It's more cost‑effective to run all target‑market differences in one round. Typical safety and certificate fees range from several thousand to RMB 20,000 – lithium batteries cost more. Confirm whether quotes include national differences and follow‑up technical support.
7.3 Cost‑saving tips
Series certification shares costs – same‑platform models share main safety tests – only differences tested. Design to align with mainstream IEC standards – reducing national differences. Pre‑test before formal submission – avoiding retest costs.
8. What a Certification Body Provides
8.1 Solution planning
A good certification body helps determine whether the product is within CB scope – matches the correct IEC standard – identifies target‑market national differences. A well‑planned scheme uses one CB test to support multiple countries – only supplementary differences later. Poor planning means the CB certificate may not transfer – wasted cost.
8.2 Transfer co‑ordination
After CB is issued – bodies liaise with NCBs for country transfers. Different countries have different requirements – professional teams can prepare materials in advance – reducing supplementary submissions. Multi‑country transfers run in parallel – compressing overall timelines.
For CB certification, contact BlueAsia at 13534225140 (King) or email king.guo@cblueasia.com.
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