Japan Radio Act Amendment: 920 MHz and 800 MHz Public Consultations

Japanese authorities have opened public consultations on two proposed ministerial ordinances under the Japan Radio Act amendment process. The proposals aim to modernize the Radio Act Enforcement Regulations by introducing regulatory frameworks for 920 MHz wireless power transmission systems and 800 MHz radio technologies.

Both consultations are open for comments until February 24, 2026, marking an important milestone in Japan’s evolving spectrum governance landscape.

Japan Radio Act Amendment and 920 MHz Wireless Power Systems

One proposal under the Japan Radio Act amendment establishes a system allowing outdoor use of 920 MHz band wireless power transmission systems.

This regulatory development is significant for manufacturers of wireless energy transfer technologies. If adopted, the Japan Radio Act amendment will formalize operational limits, technical conditions, and potential certification requirements for outdoor deployment.

From a product compliance perspective, companies may need to reassess:

• Transmission power thresholds

• Electromagnetic compatibility standards

• Interference prevention measures

• Conformity assessment obligations

  
  

Early regulatory analysis will be essential to ensure alignment with the amended framework.

Japan Radio Act Amendment: 800 MHz Wideband and 3D Positioning Systems

The second proposal within the Japan Radio Act amendment introduces a new regulatory structure for:

• 800 MHz wideband low-power radio systems

• 800 MHz three-dimensional positioning systems

  
  

These technologies are increasingly used in industrial IoT, advanced positioning solutions, and smart infrastructure environments.

The amendment may establish updated technical parameters and compliance pathways for manufacturers placing such equipment on the Japanese market.

Legal Engineering Perspective

From a legal engineering standpoint, the Japan Radio Act amendment reflects proactive spectrum modernization. Regulatory changes in mid-band frequencies often have direct implications for hardware design, RF architecture, and certification strategy.

Manufacturers targeting Japan should closely monitor consultation outcomes and conduct early gap assessments. Integrating Japan Radio Act amendment considerations into product development cycles can reduce redesign risk and accelerate market entry once the ordinances are finalized.