MIC is seeking public comment on 6 GHz Wi-Fi, automotive radar, and terminal equipment rules.
Japan’s Ministry of Internal Affairs and Communications (MIC) has opened three public consultations through the e-Gov portal. Together they touch wireless LAN, millimetre-wave radar, and the rules governing equipment connected to public networks.
Three proposals, three short windows
The first consultation covers two items under the technical conditions for low-power wireless systems: frequency expansion of 6 GHz band wireless LANs, and advancement of Dynamic Frequency Selection (DFS) for 5 GHz band wireless LANs. Comments close 26 May 2026. The second addresses technical conditions for 76 GHz band low-power millimetre-wave radar and closes 28 May 2026. The third is a partial amendment to the Terminal Equipment Regulations and closes 29 May 2026.
What each proposal changes
The 6 GHz item builds on Japan’s existing 5925–6425 MHz allocation, the band already used for Wi-Fi 6E, and concerns expanding how that spectrum is used. The paired DFS item adjusts the rules that let 5 GHz wireless LANs share spectrum with radar systems. The 76 GHz proposal updates the conditions for millimetre-wave radar, the band used in automotive driver-assistance sensors and a growing range of industrial detection applications.
The terminal equipment amendment, made under the Telecommunications Business Act, revises how terminal categories are defined—part of a longer shift away from legacy fixed and mobile categories toward IP-based equipment.
Why it matters for compliance
Public consultations precede regulatory change. The 76 GHz and terminal equipment consultations follow the Administrative Procedure Act and accept formal comments; the wireless LAN consultation is a voluntary solicitation tied to the Information and Communications Council’s review.
Where to comment
Each consultation is published on the e-Gov public comment portal with the relevant draft reports and summaries attached:
- 6 GHz WLAN frequency expansion and 5 GHz DFS — e-Gov consultation (closes 26 May 2026)
- 76 GHz low-power millimetre-wave radar — e-Gov consultation (closes 28 May 2026)
- Partial amendment of the Terminal Equipment Regulations — e-Gov consultation (closes 29 May 2026)
