Section 15
SEC. 15. The Director of Public Works is further authorized to issue temporary permits to persons who are learning to operate motor vehicles upon the payment of a fee of fifty centavos. No such permit shall, however, be issued for a longer period than three months, and no such permit shall authorize the person to whom the same is issued to operate a motor vehicle on any public highway unless accompanied as instructor by some person under this Act licensed to operate such motor vehicle. For any violation of the provisions of this Act and for any injury or damage done by a motor vehicle, or on account, or as a result of the operation of a motor vehicle operated by a beginner who is accompanied by an instructor, the instructor shall be liable.