Which vehicle can NOT be driven with a Class I driver's license for ordinary motor vehicles? (The special vehicles are neither tractor-type nor wrecker-type.)
The Class I driver's license for ordinary motor vehicles uses a different limit for each vehicle type: trucks under 12 tonnes load capacity, special vehicles (other than tractor or wrecker types) under 10 tonnes gross weight, and forklifts under 3 tonnes (Appendix 18 of the Enforcement Rule). Always check whether a number refers to load capacity or gross weight.
Answer: ①
Explanation
Under Appendix 18 of the Enforcement Rule, a Class I driver's license for ordinary motor vehicles covers trucks with a load capacity under 12 tonnes, forklifts under 3 tonnes operated on the road, and special vehicles under 10 tonnes gross weight (excluding tractors and wreckers). A 12-tonne special vehicle exceeds the 10-tonne limit, so it requires a Class I driver's license for large motor vehicles.
Legal basis: 도로교통법 시행규칙 별표18