Japanese mandatory safety certification for electrical appliances and materials.
In plain language
PSE is Japan's electrical safety mark. Diamond PSE = independently tested (required for higher-risk products like refrigerators, TVs). Circle PSE = manufacturer self-declares (for lower-risk products). Both are mandatory for their respective product categories.
What this marking confirms
Legal compliance
Mandatory under Japan's Electrical Appliance and Material Safety Act.
Quality
PSE confirms safety compliance, not product quality.
Safety
Confirms the product meets Japanese electrical safety standards.
Is this marking mandatory?
MandatoryMandatory under Japan's Electrical Appliance and Material Safety Act.
How to obtain this marking
- 1Determine product category (specified or non-specified)
- 2For specified: test at METI-registered body
- 3For non-specified: self-declare compliance
- 4Register with METI
- 5Affix PSE mark
How to verify
Verify PSE registration in METI database.
Common errors and misuse
Using diamond PSE without third-party certification
Selling without PSE mark