Japan has strengthened oversight and compliance for radio frequency usage and broadcasting operations through multiple regulatory amendments, targeting radio transmitters, wireless communication equipment, and broadcast transmitters
Japan Tightens Rules on Radio and Wireless Gear
Stricter compliance and oversight now apply to transmitters and broadcast equipment.
What changed
Stricter frequency controls introduced to prevent interference and ensure stability.
Expanded product scope now explicitly covers radio transmitters and wireless communication equipment.
Enhanced regulatory scrutiny for broadcasting operations and radio frequency usage.
Who it affects
Radio transmitter operators must adhere to stricter frequency allocation rules.
Wireless equipment suppliers must comply with the expanded regulatory scope.
Broadcasting operators are subject to enhanced oversight and compliance measures.
Key dates
Compliance Overview: Japan’s Recent Regulatory Amendments for Radio Frequency Usage and Broadcasting Operations
Japan has strengthened oversight of radio frequency usage and broadcasting operations through targeted amendments to the Ordinance for Enforcement of the Radio Act (hereafter, the "Ordinance"). These amendments establish technical standards for specific wireless systems, including satellite communications, wireless power transfer, and low-power wireless systems, to address emerging technologies and spectrum reallocation needs. The Radio Act (Act No. 131 of May 2, 1950) serves as the foundational legal framework for all amendments1, 2, 3.
Regulation Analysis
1. Non-Geostationary Satellite Communication Systems (Ka-Band, ~600 km Orbit)
Key Requirements:
- Introduces technical standards for radio equipment used in user terminals of non-geostationary satellite communication systems operating in the Ka-band at ~600 km altitude1.
- Aims to support high-speed internet, broadband services, mobile network backhaul, and emergency communication backup1.
- Applicability: Radio equipment for satellite communication systems in the specified Ka-band1.
Deadline/Threshold:
Authority:
- Ministry of Internal Affairs and Communications (MIC)1.
2. 920 MHz Band Spatial Transmission Wireless Power Transfer Systems
Key Requirements:
- Establishes technical standards for outdoor use of 920 MHz band spatial transmission wireless power transfer systems3.
- Permits operation as a specified low-power radio station with output limitations to improve installation flexibility and application range3.
Deadline/Threshold:
- Entry into force: March 2026 (exact date not specified in sources; proposed adoption and enforcement aligned with March 2026 timeline)3.
Authority:
- MIC3.
3. 800 MHz Band Systems (Three-Dimensional Positioning and Broadband Low-Power Wireless)
Key Requirements:
- Establishes technical standards for:
- Introduced to replace the retiring 800 MHz band digital MCA system, which will end service on 31 May 20292.
Deadline/Threshold:
- Entry into force: March 2026 (proposed adoption and enforcement)2.
Authority:
- MIC2.
Summary Table of Key Amendments
| Regulation | Key Requirement | Deadline/Threshold | Authority |
|---|---|---|---|
| Non-Geostationary Satellite Communication (Ka-Band, ~600 km)1 | Technical standards for user terminal radio equipment in Ka-band satellite systems. | 3 April 2026 | MIC |
| 920 MHz Band Wireless Power Transfer3 | Technical standards for outdoor use and specified low-power radio station operation. | March 2026 (proposed) | MIC |
| 800 MHz Band Systems (3D Positioning & Broadband Low-Power Wireless)2 | Technical standards for 800 MHz band systems to replace retiring digital MCA system by 31 May 2029. | March 2026 (proposed) | MIC |
Compliance Obligations and Enforcement
- Registration/Licensing: While the sources do not explicitly detail licensing procedures, the Radio Act requires radio stations and equipment to comply with technical standards and obtain necessary approvals from MIC1, 2, 3.
- Technical Standards: Manufacturers, importers, and operators of covered equipment must ensure compliance with the newly established technical standards prior to deployment1, 3, 2.
- Publication and Access: Final texts of amendments are published in the Official Government Gazette (KAMPO) in Japanese and are available on the MIC website4, 5, 2.
Summary Answer
Japan’s recent amendments to the Ordinance for Enforcement of the Radio Act introduce technical standards for three key areas: (1) non-geostationary satellite communication systems in the Ka-band (effective 3 April 2026)1, 4, (2) 920 MHz band wireless power transfer systems (proposed March 2026)3, and (3) 800 MHz band three-dimensional positioning and broadband low-power wireless systems (proposed March 2026)2. These measures aim to support advanced communication technologies, improve spectrum efficiency, and replace retiring systems by 31 May 20292. Compliance with technical standards is mandatory for manufacturers and operators, with oversight by the Ministry of Internal Affairs and Communications (MIC)1, 3, 2. All amendments are grounded in the Radio Act (Act No. 131 of 1950)1, 2.
Sources
- ↩ Partial Amendment of the Ordinance for Enforcement of the Radio Act, etc. — SS / directdoc https://docs.wto.org/dol2fe/Pages/SS/directdoc.aspx?filename=Q:/G/TBTN25/JPN888.pdf&Open=True
- ↩ Partial Amendment of the Ordinance for Enforcement of the Radio Act ,etc. — SS / directdoc https://docs.wto.org/dol2fe/Pages/SS/directdoc.aspx?filename=Q:/G/TBTN26/JPN893.pdf&Open=True
- ↩ Partial Amendment of the Ordinance for Enforcement of the Radio Act ,etc. — SS / directdoc https://docs.wto.org/dol2fe/Pages/SS/directdoc.aspx?filename=Q:/G/TBTN26/JPN894.pdf&Open=True
- ↩ Partial Amendment of the Ordinance for Enforcement of the Radio Act, etc. https://docs.wto.org/dol2fe/Pages/SS/directdoc.aspx?filename=Q:/G/TBTN25/JPN885A1.pdf&Open=True
- ↩ Partial Amendment of the Ordinance for Enforcement of the Radio Act, etc. — SS / directdoc https://docs.wto.org/dol2fe/Pages/SS/directdoc.aspx?filename=Q:/G/TBTN25/JPN888A1.pdf&Open=True