PSE certification is a compulsory safety certification in Japan, which is used to prove that electrical and electronic products have passed the safety standard test of Denan law or international IEC standards. The dentorl law of Japan stipulates that 498 products must pass the safety certification when entering the Japanese market. Among them, 165 class a products should obtain diamond PSE mark, and 333 class B products should obtain round PSE mark.

With more and more countries joining the WTO, in order to keep up with the international standards, many countries have formulated laws and regulations to restrict the technical indicators of various commodities, such as safety, energy conservation, environmental protection, etc., which can not only ensure the level of their own industry and market, but also form certain technical barriers.

Japan is a country with complicated safety regulations. If foreign products want to enter the Japanese market, they will have to face a higher threshold.

Requirements of electrical appliances Safety Act (Denan)

Buyers in Japan must register with METI within one month after purchasing goods. All electrical and electronic products in the range of Denan catalogue sold in Japan must pass PSE certification. Japanese Denan divides electrical and electronic products into two categories: specified products, including 115 products; non specified products, including 338 products. Specific electrical products must be inspected by the third-party certification authority authorized by the Ministry of economy, industry and industry of Japan, and the PSE certification certificate shall be issued. The validity period of the certification is between 3 and 7 years, and the PSE diamond mark shall be pasted on the products. Non specific electrical products need to prove the conformity of products through self-examination and declaration, and paste PSE round mark on the products.