Which vehicle may be driven with a Class I driver's license for ordinary motor vehicles?
The scope of the Class I driver's license for ordinary motor vehicles is set by seating capacity for buses and by load capacity for trucks (Table 18 of the Enforcement Rule of the Road Traffic Act). Whether a limit is 'or less' or 'less than' decides the boundary value, and also check separately which license covers special vehicles and two-wheeled vehicles.
Answer: ②
Explanation
Under Annex 18 of the Enforcement Rule, a Class I driver's license for ordinary motor vehicles covers passenger cars, buses seating 15 or fewer, and trucks with a load capacity under 12 tonnes, among others. A 12-tonne truck is not 'under 12 tonnes', so it requires a Class I driver's license for large motor vehicles. A wrecker requires a wrecker (special) license, and a two-wheeled vehicle requires a Class II driver's license for small motor vehicles.
Legal basis: 도로교통법 시행규칙 별표18