The government is considering banning drone flights at night, according to an outline of new regulations on how the unmanned aircraft should be used.
The move follows the arrest of a man who landed a drone carrying a minuscule amount of radioactive material on the prime minister's office to protest the government's push to kick-start Japan's nuclear energy industry.
In addition to the ban on nighttime drone flights, the envisaged rules would only allow users who take certain safety steps to fly their drones in residential areas and near airports.