The Diet enacted a law Tuesday to impose harsher penalties for road rage incidents in the wake of several high-profile fatal accidents.

With the country's population rapidly graying, the revised road traffic law will also oblige elderly drivers age 75 or older with records of traffic offenses to pass a driving test when renewing their licenses.

The stricter road rage penalties are set to take effect around the end of this month, while the steps covering elderly drivers will be implemented by June 2022.