Two Tiers of PSE Marking
Japan’s Product Safety Electrical Appliance & Material (PSE) system has two tiers — Diamond PSE for higher-risk categories requiring third-party testing, and Circle PSE for lower-risk categories allowing self-declaration — the applicable tier depends on your specific product category.
Confirming Whether Your Product Is In Scope
Not every electronic product falls under mandatory PSE marking — confirm your specific product category against Japan’s regulated items list early, since assuming PSE either does or doesn’t apply without checking is a common and costly mistake.