Follow the traffic regulations in Japan, and enjoy driving safely and comfortably.
Drivers and all the passengers are required to wear seatbelts in Japan, like other countries.
If you let a child under six be on board in a car, you are required to use an appropriate child safety seat according to his/her age and physical size. If you rent a car with your children, request the rent-a-car firm for the child safety seats.
You can not drive a car after drinking alcohol, and it is also “driving under influence” if you hold alcohol in your body from the previous day.
Severe punishment for DUI will be imposed also on the person who is knowingly on board of a car of the driver under influence of alcohol, and the person who encourages drinking alcohol to a person who will drive a car.