337.21  REAR-VIEW MIRROR; CLEAR VIEW TO FRONT, BOTH SIDES AND REAR.
   (a)   Every motor vehicle and motorcycle shall be equipped with a mirror so located as to reflect to the operator a view of the street to the rear of such vehicle or motorcycle.  Operators of vehicles and motorcycles shall have a clear and unobstructed view to the front and to both sides of their vehicles or motorcycles and shall have a clear view to the rear of their vehicles or motorcycles by mirror. 
   (b)   Whoever violates this section is guilty of a minor misdemeanor on a first offense; on a second offense within one year after the first offense, the person is guilty of a misdemeanor of the fourth degree; on each subsequent offense within one year after the first offense, the person is guilty of a misdemeanor of the third degree.  (ORC 4513.23)