(1) “Commercial driver training school” or “school” means a business enterprise conducted by a person for the education and training of persons, either practically or theoretically, or both, to operate motor vehicles or to prepare an applicant for an examination given by the State for a driver's license or learner's permit and charging a consideration or tuition for such services.

(2) “Instructor” means any person, whether acting as operator of a commercial driver training school or for any such school for compensation, who teaches, conducts classes of, gives demonstrations to or supervises practice of persons learning to operate or drive motor vehicles or preparing to take an examination for a driver's license or learner's permit, and any person who supervises the work of any other such instructor.