What is PSE

The PSE Mark is a mandatory safety and EMC (Electro Magnetic Compatibility) approval for electrical products sold on the Japanese market. The applicable law is the DENAN Act (Electrical Appliance and Material Safety Act) of Japan. The Japanese Ministry of Economy, Trade and Industry (METI) is the responsible authority for the PSE Certification.


Here is a brief Video about the PSE/PSC Mark Certification for product exports to Japan,

presented by Julian Busch, director of MPR International GmbH / China Certification Corporation

(If you click, you will be sent to the external website of YouTube)

You can also watch this video on our Video Channel.

PSE Diamond Mark

The PSE Diamond Mark is the mandatory marking for Category A Products which are also referred to as Specified Products.




Manufacturers of these products are required to go through a Conformity Assessment to gain a Statement of Conformity which is an essential part of the whole PSE registration process. During this process the manufacturer must conduct product testing and a factory audit through a METI designated CAB (Conformity Assessment Body).


PSE Circle Mark

The PSE Circle Mark is the mandatory marking for Category B products, also called Non-specified Products.




The manufacturer tests the product according to the applicable standards of DENAN and then use a Self-Declaration process to declare product conformity.



Which Products need a PSE Certificate?

457 product categories have been designated pursuant to the DENAN act. The products are divided into two groups.

Category A – Specified Products:

  • Single-phase Small Power Transformers and Discharge Lamp Ballasts
  • Heating Appliances
  • Motor-Operated Appliances
  • Electronic Appliances
  • Other AC-Operated Appliances
  • Etc…


Category B – Non-Specified Products:

  • Most household electrical products like
    • Rice Cookers
    • Curling Irons
    • Television Receiver
    • Etc…


How Does the PSE Certification Process Work?

The DENAN act defines the certification process of the PSE Diamond Mark. Following please find an overview of the most important steps of PSE certification. More detailed information you can find here.




The product tests as well as the certification process itself are carried out by METI designated CABs.

The process of PSE certification according to the Japanese DENAN act can be challenging and complex. Efficient communication with the Japanese authorities as well as the accurate preparation of all relevant documents and test samples are essential for the successful application and implementation of the PSE certification and marking.


Our Service Package for Your PSE Certification

Are you interested in the certification of products for the Japanese market? Then please do not hesitate to contact us:

  • We will check for you if your product is subject to PSE Certification
  • We will prepare a non-binding offer for PSE certification to give you an idea of the costs and effort involved
  • We will guide you through the complete certification process
  • We handle all communication with the Japanese authorities
  • We will advise you on filling out the application documents
  • We handle the product tests with the CAB
  • We support the preparation of the factory audit which is performed by the CAB
  • We will support you with the required marking
  • We pay all application and testing fees to the Japanese authorities
  • We make sure that your certification process runs as smoothly and quickly as possible and that your efforts are kept to a minimum


Need More Information?

For more details please read our free information package “Japan Certification Made Easy“ which can be downloaded here.

We are happy to support you with the PSE certification and we are also available for any questions you may have. Please send us an email or call us at +49 69 2713769 258 for Europe and +1 773 654 2673 for USA.

Do you have any questions regarding certifications? If so, please do not hesitate to contact us via chat. You will find the chat window at the bottom right of each page (if this is not visible, please check your browser settings).