Electrical Appliance and Material Safety Law (DENAN Law) (PSE Mark)     (Mandatory Approvals in Japan)

Electrical Appliance and Material Safety Law (DENAN Law)

The DENAN Law specifies the procedures and penalties for businesses which manufacture, import, and/or sell electrical appliances and materials in Japan.


The DENAN Law was introduced in 2001 as a revision of the Electrical Appliance and Material Control Law of 1961. The following three regulations supplement the DENAN Law and prescribe the specific procedures businesses are required to perform.

  • Cabinet Order of the Electrical Appliance and Material Safety Law
  • Enforcing Rules of the Electrical Appliance and Material Safety Law
  • Ordinance Concerning Technical Requirements for Electrical Appliances and Materials

457 product categories have been designated pursuant to the DENAN Law (as of December 2012).


Businesses which import or manufacture electrical products regulated by the DENAN Law are obligated to complete the procedures outlined in the above laws and display the PSE mark on their products.

Process Flow for the Manufacture, Sale and Import of Electrical Products

Obligations of Manufacturers and Importers of Electrical Products

  • Submit an official notification to METI (Article 3, Notification of Business Commencement)
  • Comply with technical requirements (Article 8, Section 1, Obligation to Comply with Technical Requirements)
  • Prepare and keep a record of a final assessement before shipping goods (Article 8, Section 2, Self-assessment)
  • Affix the PSE mark (Article 10, Section 1, Marking)
  • Obtain conformity assessment for Specified Electrical Appliances and Materials (Article 9, Conformity Assessment)
    Manufacturers and importers of Specified Electrical Appliances and Materials must obtain conformity assessments for each "type category" (as defined by METI) of the relevent electrical product from a nationally registered conformity assessment body and must retain the conformity assessment certificate. Importers are obligated to keep the "equivalence of a certificate" instead of a conformity assessment certificate (Enforcing Rules of the Electrical Appliance and Material Safety Law, Article 13).

JQA conducts conformity assessment services pursuant to the DENAN Law as a registered conformity assessment body.

JQA's categories for conformity assessment services:

  • Single-phase small power transformers and discharge lamp ballasts
  • Electric heating appliances
  • Electric motor-operated appliances
  • Electronic appliances
  • Other AC electric appliances
PSE JQA

Go to page top