Unlike e-scooters, combustion engine scooters require a special driver’s license and must be street legal, titled and registered in Illinois. If the scooter has an engine with less than 150cc displacement, it is considered a motor-driven cycle, and you must have a Class L motorcycle license to operate. If its engine is 150cc displacement or more, you must have a Class M motorcycle license. Most mopeds only require a valid Illinois driver’s license. However, it is has a combustion engine of 50cc or more or requires an operator to shift gears, a Class L or M license is required, depending on the size of the gas powered engine.