Under the Road Traffic Act, which does NOT fall under the personal mobility device criteria set by Ordinance of the Ministry of the Interior and Safety?

Answer: ④ Electric two-wheeled board

The ordinance lists three types of personal mobility devices (with a safety-check report): electric kick scooters, electric self-balancing two-wheelers and bicycles powered only by an electric motor. An 'electric two-wheeled board' is not on the list. [Enforcement Rule of the Road Traffic Act, Art. 2-3]