Radio Law
Mandatory Wireless & EMC Approval

Radio Law Scope

The Radio Law covers all products which utilize the radio spectrum and operate under 3 THz.

In some cases, this includes products that are not radio communications devices, such as discharge lamps and induction heating devices. Simply applying the PSE mark to such products may be insufficient for entry into the Japanese market.

Regarding most consumer-use equipment within its scope, the Radio Law divides products into three categories.

Specified Radio Equipment High-Frequency Devices Extremely Low-Power Devices
Mark mark mark mark
  • Bluetooth
  • Wi-Fi
  • LTE
  • GSM
  • ZigBee
  • Wireless mics
  • RFID (2.4 GHz, 920 MHz)
  • Telemeters
  • UWB radio systems
  • Etc...
  • IH cooking devices
  • Microwaves
  • Electrode-less discharge lamps
  • Welders
  • RFID (13.56 MHz)
  • Ultrasonic devices
  • Other equipment over 10 kHz (including industrial and medical devices)

Field strength @ 3m:

  • < 500 μV/m for products operating under 322 MHz or over 150 GHz
  • < 35 μV/m for 322 MHz – 10 GHz
  • < 3.5x μV/m, where x is frequency in GHz (or 500 μV/m, whichever is lower) for 10 GHz – 150 GHz

* The information on this page is intended for reference purposes only and is limited to equipment operating in license-free bands.