Japan wrote the UN driver monitoring regulations into its vehicle safety standards

Japan’s Ministry of Land, Infrastructure, Transport and Tourism said in a release dated September 30 that it had written requirements for drowsiness warning devices and distraction warning devices — together described as driver monitoring systems — into the Safety Regulations for Road Vehicles.

The ministry said the United Nations World Forum for Harmonization of Vehicle Regulations, WP.29, settled the international standards in March 2026, and that Japan was taking them into domestic standards to coincide with their entry into force in October 2026. The technical annex sets out both envelopes. Under UN R182, a drowsiness warning must operate between 70 and 130 km/h, and when the vehicle decelerates out of that band must keep operating until it falls below 65 km/h, warning when driver drowsiness reaches a defined level. Under UN R183, a distraction warning must operate at 20 km/h and above, monitor the driver’s gaze, and warn when the driver looks at the hand area — defined as within 55 degrees left or right of straight ahead and below 30 degrees downward, excluding window areas — for 3.5 seconds at 50 km/h or more, or for 6 seconds between 20 and 50 km/h.

The provisions enter the standards as Articles 43-11 and 43-12. They cover motor vehicles other than two-wheelers, two-wheelers with a sidecar, three-wheelers, light vehicles with tracks or skis, and trailers. They apply to new types from September 2031 and to continued production from September 2033. The amendment was promulgated and took effect on September 30, with the device requirement itself effective October 20, 2026. The ministry said the devices should allow drowsiness and inattention to be detected early and warned about, which it expects to help prevent crashes.