Structure and type of RFID communication

All of wireless communication devices in Japan should be complied with the Wireless Telegraphy Act.

Although various radio waves are used for mobile phones, TVs, radios, wireless LAN and so on, the various interference including the crossing will be caused unless there is no regulation.

Passive RFID tags have no battery or other internal power source and are not subject to the Wireless Telegraphy Act. However, active tags and the readers/writers are subject to the Act. Especially, for the high power type reader/writer, 1W, with over 250mW output, users need to have the registration and license according to the Act.

Since RF tag (RFID tag, radio tag, IC tag) also make the wireless communication, the reader writer and active tag should be the subject of the Regulation.
＊The above statement is written for Japanese regulation and please refer to the similar regulation for each country.