(1) A person shall not sell a new motor vehicle nor shall a new motor vehicle be registered thereafter which is designed or used for the purpose of transporting passengers for compensation unless that vehicle is equipped with safety glass wherever glass is used in doors, windows, and windshields. Rigid safety plastic which meets the test requirements of American national standards institute standard Z26.1-1966, as supplemented and amended, may be used on buses in lieu of safety glass, except that front windshields shall be equipped with safety glass.

  (2) A person shall not sell a new motor vehicle nor shall a new motor vehicle be registered thereafter unless that vehicle is equipped with safety glass wherever glass is used in the windshield, doors, and windows; nor shall any glass be replaced in the windshield, doors, and windows of a motor vehicle unless the glass is safety glass as herein defined.

  (3) The term “safety glass” shall mean a product composed of glass, so manufactured, fabricated, or treated as substantially to prevent shattering and flying of the glass when struck or broken.

  (4) In addition to the penalties imposed by this act, the permit issued by the Michigan public service commission to a person engaged in the passenger carrying business shall be subject to revocation or suspension in the discretion of the Michigan public service commission.