Japan is a formal member of the IECEE CB Scheme, yet few industry practitioners fully understand the practical value of CB test reports in Japanese PSE certification, including which costs and procedures can be saved and which mandatory requirements cannot be bypassed.

Essentially, CB is an international mutual recognition mechanism for IEC standard test data, while PSE is Japan’s local electrical safety compliance system under DENAN regulations. The two systems operate independently, making the actual utility of CB reports limited yet more practical than other national certificates.

Japan’s Role in the CB Scheme

Japan owns authorized NCB bodies within the IECEE system, with JQA being the mainstream CB certification issuer. Overseas manufacturers can apply for Japanese local certifications via Japanese NCBs using valid CB documents.

Core Practical Functions of CB Reports for PSE Certification

·Technical test data adoption: Qualified CB reports covering DENAN standard clauses can be directly adopted for PSE application, exempting repeated tests on insulation resistance, dielectric strength, earthing continuity, temperature rise and abnormal operation tests.

·Technical document reference: Product specs, circuit diagrams and BOM listed in CB reports can be quoted directly for PSE document review to cut document preparation workload.

  Test Items Covered by CB Reports

Most safety clauses of DENAN are formulated based on IEC standards, enabling high data compatibility. Common reusable test items include basic electrical safety performance tests.

For simple products like power adapters and chargers, valid CB reports can cover 65%-75% of PSE safety tests, shortening the certification cycle from 6-8 weeks to 3-4 weeks. Coverage ratio drops for complex electronic products, yet over half of safety tests can still be exempted.

  Mandatory PSE Requirements Beyond CB Coverage

·Local wiring & plug specs: Fixed power cords must comply with Japanese JIS plug standards; detachable cords follow separate market sales compliance rules instead of certification-stage inspection.

·Japanese labeling & warnings: DENAN mandates Japanese printed marks, safety alerts and standard-compliant PSE logo marking rules, which are not involved in the CB system.

·Lithium battery extra rules: IEC 62133 battery test data from CB reports cannot fully meet Japan’s local battery safety clauses, requiring separate targeted evaluation.

  Standard Operation Process for CB to PSE Conversion

Japanese PSE authorities only verify two core points for CB documents: consistent IEC standard versions matching DENAN references and globally recognized lab qualifications. Valid IECEE CB certificates with ILAC-accredited lab reports are all acceptable regardless of issuing regions.

Applicants still need to submit exclusive Japanese manuals, standardized frequency marking files and PSE marking plans to complete the whole application.

  Two-way Value of CB & PSE Certifications

Valid PSE test reports compiled in English per unified IEC standards can also be converted into CB recognized data for certification applications in other CB member countries. The most efficient design strategy is to develop products in line with both IEC international standards and Japanese DENAN rules in the early stage, then apply for multiple regional certifications with one set of CB test data.

For Bluetooth qualification certification consultation, contact Blueasia technical consultant Benson: 13534225140