This chapter does not apply to any person giving driver training lessons without charge, to employers maintaining driver training schools without charge solely for that employer’s employees, nor to a school or a class conducted by a college, a university, or a high school for a regularly enrolled full-time or part-time student as a part of a normal program of the institution, except that a public driver education program may provide a certificate of course completion to be used by a driver to waive the skill portion of the driver’s license examination under section 39-25-02.1.