The Ministry of Internal Affairs and Communications (MIC) of Japan has officially opened the 433 MHz frequency band for tire pressure monitoring systems (TPMS) and keyless entry systems.
Regulation Sources of authority link can be viewed from below: MIC Ordinance No. 6 of 2025 – Item 8, Paragraph 1, Article 2(Japanese only): https://laws.e-gov.go.jp/law/356M50001000037#Mp-At_2
MIC Ordinance No. 6 of 2025 – Item 2, Paragraph 4, Article 6(Japanese only): https://laws.e-gov.go.jp/law/325M50080000014#Mp-At_6
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