The PSE (Product Safety Electrical Appliance & Material) mark is a mandatory certification for electrical products entering the Japanese market, governed by the DENAN Act (Electrical Appliance and Material Safety Law). Category A (Specified Products) includes high-risk items and requires third-party conformity assessment.
Category A products, also known as Specified Products, are those that can potentially cause hazards and require mandatory PSE certification. These products must display the "Diamond PSE" mark after successful certification.

Effective In: Japan
Regulatory Body: METI
Scope of Regulation: EMC, Safety, EMI
Product Label: Mandatory
Emissions tests required: Yes
Immunity tests required: Yes
Safety Testing required: Yes
EMC/Safety Standards:

Safety Standards:

• JIS C 9335-1 – Safety of household and similar electrical appliances
• JIS C 61000 series – General safety and immunity requirements (based on IEC 61000)
• JIS C 8303 – Plugs and socket-outlets for domestic use
• JIS C 8712 / C 8714 – Safety requirements for rechargeable batteries and lithium-ion cells
• JIS C 60601-1 – Medical electrical equipment safety
• JIS C 60065 / JIS C 62368-1 – Audio/video, IT & communication tech equipment safety

Authority Website: https://www.jqa.jp/english/safety/service/mandatory/pse/