Bluetooth car chargers need to undergo MIC certification for radio waves when exporting to Japan. Products operating at 426MHz require TELEC certification to enter the Japanese market, mainly following the Radio Law of Japan and Article 88 of the notification from the Ministry of Internal Affairs and Communications. The certification process is similar to that of short-range wireless devices, but with specific frequency requirements. Here are the detailed steps for handling the certification: First, the core standards applicable to 426MHz products are specified as short-range wireless frequencies in Japan. Compliance with Article 2 Clause 1 of the Radio Law is essential, focusing on factors like frequency accuracy, transmit power, spurious radiation, and duty cycle to prevent interference with local radio communications. The certification type adopted is Type Certification, which covers a batch of products with the same design and manufacturing. Any changes to the radio frequency-related design necessitate re-certification. Next, in terms of application materials and sample preparation, you need to provide technical documents including a product application form (provided by the certification body), specifications (clearly defining the 426MHz frequency, modulation method, transmit power, and duty cycle), circuit schematic diagrams, PCB layout drawings, system block diagrams, antenna specifications (including gain, model, and impedance matching parameters), component lists (including IC models and data sheets), user manuals in English or Japanese, and product label drafts with a reserved space for the "JATE" mark. Additionally, compliance documents are required such as quality management system documents (ISO 9001 certificate or quality control process description), Declaration of Conformity. If an agent is engaged to apply for the certification on your behalf, an authorization letter in Japanese or English must be provided. For samples preparation, you should provide 2-3 sets of complete prototype samples that can stably output signals in the 426MHz band. Module-type products must also come with auxiliary testing devices for power supply and control to meet laboratory testing requirements. Then you can submit your application materials and samples to a RCB agency recognized by the Ministry of Internal Affairs and Communications in Japan like TELEC、SGS Japan、TÜV Rheinland Japan. The documents will undergo a review process that takes about 1-2 weeks. The agency will check if the documents are complete and compliant. If there are any issues, you will be asked to make revisions. Once the review is complete, the samples will go through testing which usually takes around 4-6 weeks. The testing focuses on aspects such as frequency error, output power limit values, suppression of spurious radiation, and compliance with duty cycle requirements. If any standards are not met, you will need to make corrections and resubmit for retesting. After successful testing within 1-2 weeks TELEC certification will be issued along with a unique JATE mark number. Finally there are some follow-up compliance requirements to consider. The product must display the certification mark and number (in the format: certification agency number + device identification code like 001-XXXXXXX). The certificate has no fixed validity period but if there are changes in radio frequency parameters such as antenna design or transmit power a new application for certification must be submitted. In addition if the product falls under IT equipment category it must also meet VCCI electromagnetic compatibility standards and if it involves electrical safety a PSE certification may be required.